CN107734661B - Method for scheduling terminal resources, method and equipment for determining resource scheduling granularity - Google Patents
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Abstract
The invention provides a method for scheduling terminal resources, and a method and equipment for determining resource scheduling granularity. The invention can realize flexible granularity of resource scheduling aiming at different service types so as to meet the performance requirements required by different services. In addition, the embodiment of the invention also aims at the problem of different resource indication expenses in the downlink control information caused by different resource granularities, adopts a uniform indication mode for the resource indications with different granularities, reduces the blind detection times of the terminal side on the downlink control information and improves the detection efficiency.
Description
Technical Field
The invention relates to a Long Term Evolution (LTE) system, in particular to a method for scheduling terminal resources, a method for determining resource scheduling granularity and equipment.
Background
In the LTE system, Resource scheduling of User Equipment (UE) is performed based on Physical Resource Blocks (PRBs). The PRB is a basic Physical resource allocation unit, different numbers of PRBs are allocated for data transmission according to service conditions of different UEs, and the PRBs resources are allocated to the UEs through a Physical Downlink Control Channel (PDCCH) indication.
In the 5G system design, it is necessary to support multiple services with respective obvious features, including enhanced Mobile internet (eMBB), Ultra-high reliability and Ultra-Low Latency Communication (urrllc), and mass internet of things Communication (mtc). The eMBB has corresponding requirements for peak rate and user experience rate, but may not be latency sensitive. URLLC traffic requires ultra-high transmission reliability and lower latency data transmission, which may require shorter transmission time intervals in the time domain than eMBB traffic. mtc is also insensitive to latency requirements, but considering that the coverage may be large, reliable demodulation needs to be obtained by energy accumulation in the time domain, and the time length of packet transmission needs to be increased.
In the existing LTE system, a resource allocation mode based on a fixed PRB as a minimum resource scheduling unit cannot flexibly and efficiently satisfy the optimization design of all services (such as a big data service, a low delay service, and a narrowband MTC service).
Disclosure of Invention
The technical problem to be solved in the embodiments of the present invention is to provide a method for scheduling terminal resources, a method for determining resource scheduling granularity, and a device, so as to implement flexible resource scheduling granularity for different services, so as to meet performance requirements required by different services.
In order to solve the above technical problem, a method for scheduling terminal resources provided in an embodiment of the present invention includes:
determining a first granularity of resource scheduling of a terminal according to service parameters of a service type requested by the terminal or according to service parameters of a service type required to be transmitted by a network;
and scheduling resources for the terminal according to the first granularity.
The embodiment of the invention also provides another method for determining the resource scheduling granularity, which comprises the following steps:
acquiring granularity indicating information of terminal resource scheduling indicated by a network, wherein the granularity indicating information is used for indicating first granularity corresponding to the terminal, and the first granularity is determined by the network according to the resource scheduling granularity requested by the terminal or the service type required to be transmitted by the network;
and determining the granularity of the terminal resource scheduling according to the granularity indication information.
An embodiment of the present invention provides a network side device, including:
a granularity determining unit, configured to determine a first granularity of resource scheduling of a terminal according to a service parameter of a service type requested by the terminal or according to a service parameter of a service type that needs to be transmitted by a network;
and the scheduling unit is used for scheduling the resources of the terminal according to the first granularity.
An embodiment of the present invention further provides a terminal, including:
the device comprises an information obtaining unit, a resource scheduling unit and a network scheduling unit, wherein the information obtaining unit is used for obtaining granularity indicating information of terminal resource scheduling indicated by a network, the granularity indicating information is used for indicating first granularity corresponding to a terminal, and the first granularity is determined by the network according to the resource scheduling granularity requested by the terminal or the service type required to be transmitted by the network;
and the first granularity determining unit is used for determining the granularity of the terminal resource scheduling according to the granularity indicating information.
Compared with the prior art, the method for scheduling the terminal resource, the method for determining the resource scheduling granularity and the device provided by the embodiment of the invention can realize flexible resource scheduling granularity aiming at different service types so as to meet the performance requirements required by different services. In addition, the embodiment of the invention also aims at the problem of different resource indication expenses in the downlink control information caused by different resource granularities, adopts a uniform indication mode for the resource indications with different granularities, reduces the blind detection times of the terminal side on the downlink control information and improves the detection efficiency.
Drawings
Fig. 1 is a flowchart illustrating a method for scheduling terminal resources according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a method for determining resource scheduling granularity according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal 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 "one 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 phrases "in one 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 addition, the terms "system" and "network" are often used interchangeably herein.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiment of the present invention, the Base Station may be a Macro Base Station (Macro Base Station), a micro Base Station (Pico Base Station), a Node B (the name of a 3G mobile Base Station), an enhanced Base Station (ENB), a Home enhanced Base Station (Femto ENB or Home eNode B or Home ENB or HNEB), a relay Station, an access point, an RRU (Remote Radio Unit), an RRH (Remote Radio Head), and the like. The terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including a User Equipment (UE), a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer Premise Equipment) or mobile smart hotspot capable of converting mobile signals to WiFi signals, a smart appliance, or other device capable of autonomously communicating with a mobile communication network without human operation, etc.
The embodiment of the invention provides a flexible resource scheduling granularity mechanism aiming at different services, and solves the problem of how to indicate various resource scheduling granularities when different services coexist. The embodiment of the invention divides services with different scheduling resource granularity requirements, for example, a future 5G communication system can support abundant data services from mobile internet, internet of things, industrial control, telemedicine, vehicle networking and the like, the services may appear in the same network deployment and frequency band, and the coexistence problem of the services needs to be considered.
For example, the services are divided into x service types according to the requirement of the coexisting service types on the granularity of scheduling resources. For different service types, different resource granularities are defined, for example, the resource granularity is M subcarriers × N OFDM symbols (M corresponds to the number of subcarriers in the frequency domain, and N corresponds to the number of OFDM symbols in the time domain), and different service types are scheduled and resource allocated based on different resource granularities.
The above 3 services (eMBB, URLLC, mtc) coexist for example, and it is assumed that the 3 services require different scheduling resource granularities, for example:
1) aiming at the eMBB service with high capacity and large data transmission, large granule resources can be directly allocated, and time domain demodulation pilot frequency overhead and control signaling overhead are reduced;
2) aiming at the URLLC service with low time delay and high reliability, the time domain is expected to have short duration, and the frequency domain occupies large resources;
3) aiming at the communication mMTC service of the Internet of things, time domain resources can be occupied so as to enhance coverage;
for example, it is still assumed that, with one resource element RE (resource element) in LTE as the minimum unit, the scheduling resource granularity of eMBB is M1 × N1 REs, the scheduling resource granularity of URLLC is M2 × N2, and the scheduling resource granularity of mtc includes M3 × N3 REs. Of course the minimum resource unit may be other definitions. This is illustrated in this manner for convenience of example. The value M, N may be M1> M2> M3, N1> N3> N2, which is only an example, and those skilled in the art may determine the resource granularity corresponding to the service according to the service characteristics.
Through the mode, the embodiment of the invention can realize flexible granularity of resource scheduling aiming at different service types so as to meet the performance requirements required by different services.
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, a method for scheduling terminal resources according to an embodiment of the present invention, when applied to a network side (e.g., a base station), includes the following steps:
and step 12, scheduling resources for the terminal according to the first granularity.
Through the steps, the method and the device can determine the granularity of the terminal resource scheduling by the network side equipment, so that the granularity of the terminal resource scheduling can be flexibly adjusted according to the actual service requirement.
For example, in step 11, when determining the first granularity of the resource scheduling of the terminal, the first granularity of the resource scheduling of the terminal may be determined according to the following steps:
step 111, determining a first service type of the terminal.
Here, a traffic type of the terminal (referred to as a first traffic type here for convenience of description) is determined, and the first traffic type may be a traffic type of an uplink or downlink traffic.
For the uplink service type, there may be various ways to determine the service type of the terminal:
for example, the terminal may request a service parameter of a certain service type from the network, and specifically, the terminal may request a service parameter of a service type carried in an uplink service scheduling request or an uplink synchronous access process; after receiving the service parameter, the network side may determine the first service type of the terminal according to the service parameter.
For another example, the terminal may directly report the service type of the service on the terminal, and the network side directly uses the service type reported by the terminal as the first service type according to the report information of the terminal.
For another example, the terminal may also report device class (UE category) information thereof, and at this time, the network side receives a first device class (UE category) reported by the terminal, and determines a first service type corresponding to the first UE category according to a preset correspondence between the UE category and the service type, so as to determine that the service type of the terminal is the first service type.
For the downlink service type, the network side may determine the service type of the terminal according to the service parameter of the downlink service to be sent to the terminal when the terminal is accessed, so as to obtain a first service type.
And step 112, obtaining a first granularity corresponding to the first service type according to a preset corresponding relation between the service type and the resource scheduling granularity.
In the embodiment of the invention, the granularity of resource scheduling required by different service types is determined in advance according to the characteristics and requirements of various service types, and the first granularity corresponding to the first service type can be directly obtained according to the predetermined corresponding relation. The service type division can be determined according to more than one service parameter division of the service, wherein services with different service parameters correspond to different service types, and the service parameters include: service priority, service transmission data volume, reliability index of service requirement, time delay index of service requirement, coverage index of service requirement and other parameters.
And 113, determining the granularity of the terminal resource scheduling as the first granularity.
Through the steps, the embodiment of the invention can determine the granularity of the resource scheduling of the terminal at the network side, and determine the proper granularity for the terminal aiming at the service type of the terminal, thereby realizing the granularity of flexible resource scheduling and meeting the performance requirements of different services.
In the embodiment of the present invention, after determining the granularity of resource scheduling of the terminal, the granularity of resource scheduling may be further indicated to the terminal as the first granularity. In addition, the embodiment of the present invention may also schedule resources for the terminal according to the first granularity, and perform resource scheduling for the terminal. For example, the downlink control information of the terminal carries information such as the resource allocated to the terminal and the granularity of resource scheduling of the terminal.
It should be noted that, in the embodiment of the present invention, in step 13, the embodiment of the present invention may indicate the granularity of resource scheduling of the terminal to the terminal in a plurality of ways. For example, the network may indicate to the terminal in one or more of the following ways:
mode 1: indicating the granularity of resource scheduling to the terminal as the first granularity through a preset signaling;
mode 2: determining a first cell network identifier group corresponding to the first granularity according to a corresponding relation between preset granularity and a cell network identifier group, and allocating a first cell network identifier in the first cell network identifier group to the terminal, so that the terminal determines the granularity of resource scheduling as the first granularity corresponding to the first cell network identifier group according to the first cell network identifier group to which the first cell network identifier belongs;
mode 3: sending downlink control information carrying granularity indication information to the terminal, wherein the granularity indication information is used for indicating that the granularity of the terminal resource scheduling is the first granularity;
mode 4: determining a first scrambling code corresponding to the first granularity according to the corresponding relation between the preset granularity and the scrambling codes; and sending the downlink control information scrambled by the first scrambling code to the terminal.
Mode 5: determining a first resource position corresponding to the first granularity according to the corresponding relation between the preset granularity and the logic or physical resource position of a downlink control channel for transmitting downlink control information, and sending the downlink control information to the terminal according to the first resource position;
the embodiment of the invention can also directly select the required resource scheduling granularity by the terminal, for example, the terminal determines the proper granularity according to the business type of the terminal and reports the granularity. And at the moment, the network receives a second granularity of uplink service resource scheduling carried by the terminal in an uplink service scheduling request or an uplink synchronous access process, and then the second granularity is used as a first granularity of the terminal resource scheduling. Of course, the network may also determine whether to employ the second granularity requested by the terminal, and if not, may further determine a third granularity for resource scheduling and indicate to the terminal.
The above-mentioned modes 1 to 5 can be roughly classified into two categories, namely a semi-static indication mode and a dynamic indication mode. Of course, many of the above approaches may be used, and in this case, a combination of semi-static and dynamic approaches is possible.
Specifically, the semi-static indication mode is suitable for a scenario where a service corresponding to an accessed terminal is relatively stable, and the service transmitted by the terminal is usually not dynamically changed after the terminal is accessed, for example, if the terminal transmits an eMBB service at the current time and transmits an mtc service at the next time, the semi-static indication mode is not suitable.
The semi-static indication mode may include:
1-1: the network determines the service type of the terminal (e.g. determines the type of downlink service of the terminal when the terminal accesses), and then notifies the terminal of the scheduling resource granularity through a high-layer signaling sent periodically or aperiodically, for example, the scheduling granularity of the terminal is configured by using a similar RRC signaling in LTE, which supports the terminal to change the service type of transmission semi-statically. This is the case, for example, in the above-described mode 1.
1-2: when the UE initiates a random access request or reports the service type of the UE to a network after access, or binds the service type with a device class (UE category) of the terminal, and after the base station receives the service type reported by the terminal or the UE category, the base station determines the resource granularity when the terminal is scheduled according to the corresponding relation between the service type and the resource granularity.
1-3: grouping the cell network identifiers of the terminals, for example, grouping into group 1, group2, … …, group M, where the cell network identifiers located in different groups respectively correspond to different service types. The network can determine the resource scheduling granularity of each Dandan by distributing the cell network marks in the corresponding group for different terminals. This is the case with the above-described mode 2. Of course, it is also possible to combine 1-2 with 1-3, that is, the terminal reports its service type first, and the base station allocates different cell network identifiers to different terminals.
The dynamic indication mode is adopted to support the terminal to dynamically change the scheduling resource granularity at different time, and the terminal is allowed to dynamically switch between different service transmissions, and the dynamic indication mode may include:
2-1, adding N bits (i.e. granularity indication information) in the downlink control information sent to the terminal, for indicating the scheduling granularity size adopted by the information used for terminal resource indication in the present downlink control information. For example, the information for the terminal resource indication in the current offline control information indicates that the traffic data transmitted for the terminal is at the 2 nd to 10 th resource granularity, and N bits in the simultaneously transmitted control information indicate the size of the resource granularity, for example, 2 bits when N is 2, may indicate whether the resource granularity is M1 × N1 of eMBB, M2 × N2 of URLLC, or M3 × N3 of mtc. This is the case with the above-described mode 3.
2-2: the scrambling is carried out in the process of transmitting the downlink control information of the terminal, different scrambling codes are configured according to different scheduling granularities, the terminal carries out blind detection according to the scrambling codes with different scheduling granularities when the downlink control information is detected, and the size of the current resource granularity scheduled for the terminal can be determined by the corresponding scrambling codes when the downlink control information is detected. This is the case with the above-described mode 4.
2-3: the downlink control information of the terminal with different scheduling granularities is transmitted in different areas, which can be different areas on the position of a physical resource or different positions of a logical search space. The terminal blindly detects own downlink control information in different regions, obtains the control information and also obtains the currently scheduled resource granularity according to the position of the region where the control information appears. This is the case with the above-described mode 5.
2-4: for determining the scheduling resource granularity of the uplink service, the base station may also carry the requirement of the resource granularity in the process of sending the scheduling request by the terminal, and perform resource allocation for the terminal according to the requirement in the subsequent terminal resource allocation process.
In addition, the embodiment of the invention can also adopt a semi-static and dynamic combined mode, thereby supporting the semi-static indication and dynamically changing the scheduling granularity of the terminal, and realizing more flexible control of the scheduling granularity.
Different granularity of terminal resource allocation of different service types can result in different bit quantity required for indicating all resources. For example, still taking resource scheduling of 100 PRBs under the 20M bandwidth of LTE as an example, if terminal resource indication is simply performed according to the bitmap indication, 100 bits and 10 bits are respectively needed when scheduling granularity is 1 PRB and 10 PRBs, so that even for Downlink Control Information (DCI) of the same transmission mode, different bit numbers are needed when downlink control information indication of different service types is performed, that is, more DCI sizes are caused. For the implementation manners of the above-mentioned manners 3 and 4, this means that the terminal needs to perform blind detection on the DCI with different lengths, and the number of blind detections of the terminal is increased.
In order to reduce the number of blind tests, in the embodiment of the present invention, when the above-mentioned manner 3 or 4 is used for indicating, before the downlink control information is sent, the size of the resource indication overhead in the downlink control information of the terminal is further determined according to the granularity at which the resource indication bit overhead of the same resource is maximum, so as to generate the downlink control information of the terminal. Through the above processing, the embodiment of the present invention determines the size of the downlink control information according to the resource indication overhead with the largest overhead resource granularity (i.e. the smallest granularity among all service types), which can reduce the complexity of the terminal for blind detection of different control information, and certainly, when scheduling a service with a smaller resource indication overhead, a certain redundant bit will be left in the downlink control information.
For the semi-static indication mode, once the resource granularity is obtained in a semi-static manner, the terminal only needs to detect the downlink control information according to the load of the corresponding downlink control information, and the blind detection complexity cannot be enhanced; similarly, for the dynamic indication scheme 2-3, the terminal only needs to blindly detect the downlink control information with the corresponding size in different areas. For the dynamic indication schemes 2-4, the terminal may also perform blind detection on only the downlink control information corresponding to the granularity of the request for the next uplink data scheduling.
Referring to fig. 2, an embodiment of the present invention further provides a method for determining resource scheduling granularity at a terminal side, as shown in fig. 2, the method includes the following steps:
here, the first granularity corresponding to the terminal may be a granularity corresponding to a first service type determined by the network side according to the first service type of the terminal.
And step 22, determining the granularity of the terminal resource scheduling according to the granularity indication information.
As an implementation manner, the embodiment of the present invention may report the uplink service type by the terminal, and before the step 21, the method may further include the following steps: sending service parameters related to the uplink service type to a network; or, determining a first service type of the terminal and reporting the first service type to a network; or determining a first service type of the terminal, determining a first UE category corresponding to the first service type according to a preset corresponding relation between the UE category and the service type, and reporting the first UE category to a network. Here, the terminal may send the service parameter related to the uplink service type to the network by sending an uplink service scheduling request or an uplink synchronous access message carrying the service parameter to the network.
Here, the determining of the service type may specifically be to determine the service type of the service by dividing according to more than one service parameter of the service, where services with different service parameters correspond to different service types, and the service parameters include: service priority, service transmission data volume, reliability index of service requirement, time delay index of service requirement, coverage index of service requirement and other parameters.
In the embodiment of the present invention, according to different indication modes of the granularity indication information of the network side, the terminal side has the following different processes:
treatment method 1: the granularity indication information is granularity information carried in a predetermined signaling, and at this time, in step 22, the granularity of the terminal resource scheduling is obtained according to the granularity information carried in the predetermined signaling.
Treatment method 2: the granularity indication information is a first cell network identifier of the terminal, and at this time, in step 22, a first cell network identifier group to which the first cell network identifier belongs is determined; and determining a first granularity corresponding to the first cell network identifier group according to the corresponding relation between the preset granularity and the cell network identifier group to obtain the granularity of the terminal resource scheduling.
Treatment method 3: the granularity indication information is a first resource location of a downlink control channel for transmitting the downlink control information of the terminal, and at this time, in step 22, a first granularity corresponding to the first resource location is determined according to a corresponding relationship between a preset granularity and a logical or physical resource location of the downlink control channel for transmitting the downlink control information, so as to obtain the granularity for scheduling the terminal resource.
Treatment mode 4: the granularity indication information is granularity information carried in the detected downlink control information of the terminal, and at this time, in step 22, the granularity of the terminal resource scheduling is obtained according to the granularity information carried in the downlink control information.
Treatment method 5: the granularity indication information is a first scrambling code used when the downlink control information of the terminal is successfully detected, and at this time, in step 22, the preset corresponding relationship between the granularity and the scrambling code determines the first granularity corresponding to the first scrambling code, so as to obtain the granularity of the terminal resource scheduling.
When the network side determines the size of the resource indication overhead in the downlink control information of the terminal according to the maximum granularity of the resource indication overhead of the same resource, and then generates the downlink control information of the terminal, in the processing mode 4 or 5, the size of the resource indication overhead in the downlink control information of the terminal can be determined according to the maximum granularity of the resource indication overhead of the same resource, and then the size of the downlink control information of the terminal is determined; and then, detecting to obtain the downlink control information of the terminal according to the size of the downlink control information.
In addition, in the embodiment of the present invention, the terminal may also select the granularity of resource scheduling, and at this time, the terminal determines the uplink service of the terminal and the second granularity of uplink service resource scheduling; and sending the uplink service scheduling request or the uplink synchronous access message carrying the second granularity to a network. At this time, in step 11, the network side obtains a second granularity of uplink service resource scheduling carried in the uplink service scheduling request or the uplink synchronous access message by the terminal, and determines that the granularity of the uplink service resource scheduling of the terminal is the second granularity.
The embodiment of the invention also provides network side equipment, and the network side equipment can be a base station. Referring to fig. 3, the network side device includes:
a granularity determining unit 31, configured to determine a first granularity of resource scheduling of a terminal according to a service parameter of a service type requested by the terminal or according to a service parameter of a service type that needs to be transmitted by a network;
and the scheduling unit 32 is configured to perform resource scheduling on the terminal according to the first granularity.
Here, the granularity determination unit 31 specifically includes:
a service type determining unit, configured to determine a first service type of a terminal according to a service parameter of a service type requested by the terminal, or according to a service parameter of a service type that needs to be transmitted by a network;
and the granularity obtaining unit is used for obtaining a first granularity corresponding to the first service type according to a preset corresponding relation between the service type and the resource scheduling granularity, and determining the granularity of the terminal resource scheduling as the first granularity.
Here, the service type determining unit is specifically configured to: determining a first service type of a terminal according to a service parameter of a service type requested by the terminal; or, receiving a first service type reported by a terminal, and determining that the service type of the terminal is the first service type; or receiving a first equipment class UE category reported by a terminal, determining a first service type corresponding to the first UE category according to a preset corresponding relation between the UE category and the service type, and determining that the service type of the terminal is the first service type.
Here, the network side device further includes:
and the indicating unit is used for indicating the granularity of resource scheduling to the terminal as the first granularity.
Here, the indicating unit further indicates the granularity of resource scheduling to the terminal as the first granularity according to one or more of the following manners:
mode 1: indicating the granularity of resource scheduling to the terminal as the first granularity through a preset signaling;
mode 2: determining a first cell network identifier group corresponding to the first granularity according to a corresponding relation between preset granularity and a cell network identifier group, and allocating a first cell network identifier in the first cell network identifier group to the terminal, so that the terminal determines the granularity of resource scheduling as the first granularity corresponding to the first cell network identifier group according to the first cell network identifier group to which the first cell network identifier belongs;
mode 3: sending downlink control information carrying granularity indication information to the terminal, wherein the granularity indication information is used for indicating that the granularity of the terminal resource scheduling is the first granularity;
mode 4: determining a first scrambling code corresponding to the first granularity according to the corresponding relation between the preset granularity and the scrambling codes; sending downlink control information scrambled by a first scrambling code to the terminal;
mode 5: determining a first resource position corresponding to the first granularity according to the corresponding relation between the preset granularity and the resource position of a downlink control channel for transmitting the downlink control information, and sending the downlink control information to the terminal according to the first resource position.
Here, when the method 3 or the method 4 is used to indicate the granularity of resource scheduling to the terminal as the first granularity, the indicating unit further determines the size of the resource indication overhead in the downlink control information of the terminal according to the granularity of the maximum resource indication overhead of the same resource before transmitting the downlink control information, and further generates the downlink control information of the terminal.
Here, as an implementation manner, the service type determining unit is further configured to obtain a service parameter of a service type carried by the terminal in an uplink service scheduling request or an uplink synchronous access process, and determine the first service type of the terminal according to the service parameter.
Referring to fig. 4, an embodiment of the present invention provides a terminal, including:
an information obtaining unit 41, configured to obtain granularity indication information of terminal resource scheduling indicated by a network, where the granularity indication information is used to indicate a first granularity corresponding to the terminal, and the first granularity is determined by the network according to a resource scheduling granularity requested by the terminal or a service type that needs to be transmitted by the network;
a first granularity determining unit 42, configured to determine the granularity of the terminal resource scheduling according to the granularity indication information.
Here, the terminal further includes:
a reporting unit, configured to send service parameters related to the service type to a network; or, determining a first service type of the terminal and reporting the first service type to a network; or determining a first service type of the terminal, determining a first UE category corresponding to the first service type according to a preset corresponding relation between the UE category and the service type, and reporting the first UE category to a network. The reporting unit may be further configured to determine a first service type of a service according to more than one service parameter of the service, where services having different service parameters correspond to different service types, and the service parameters include: the service priority, the size of service transmission data volume, the reliability index of service requirement and the time delay index of service requirement.
Here, the granularity indication information is granularity information carried in a predetermined signaling, and the granularity determining unit is specifically configured to: obtaining the granularity of the terminal resource scheduling according to the granularity information carried in the preset signaling;
or, the granularity indication information is a first cell network identifier of the terminal, and the granularity determining unit is specifically configured to: determining a first cell network identification group to which the first cell network identification belongs; determining a first granularity corresponding to a first cell network identifier group according to a corresponding relation between a preset granularity and the cell network identifier group to obtain the granularity of terminal resource scheduling;
or, the granularity indication information is a first resource location of the downlink control information of the terminal, and the granularity determining unit is specifically configured to: and determining a first granularity corresponding to the first resource position according to the corresponding relation between the preset granularity and the logic or physical resource position of the downlink control information to obtain the granularity of the terminal resource scheduling.
Here, the granularity indication information is granularity information carried in the detected downlink control information of the terminal, and the granularity determining unit is specifically configured to: obtaining the granularity of the terminal resource scheduling according to the granularity information carried in the downlink control information;
or, the granularity indication information is a first scrambling code adopted when the downlink control information of the terminal is successfully detected; the granularity determination unit is specifically configured to: and determining a first granularity corresponding to the first scrambling code according to the preset corresponding relation between the granularity and the scrambling code, so as to obtain the granularity of the terminal resource scheduling.
Here, the terminal further includes:
a detecting unit, configured to determine, according to a granularity at which resource indication overheads of the same resource are the largest, a size of the resource indication overheads in the downlink control information of the terminal, and further determine the size of the downlink control information of the terminal; and detecting the downlink control information of the terminal according to the size of the downlink control information.
Here, the terminal further includes:
a request unit, configured to determine a service parameter related to an uplink service type of the terminal; and sending an uplink service scheduling request or an uplink synchronous access message carrying the service parameters to a network.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (23)
1. A method for scheduling terminal resources, comprising:
determining a first granularity of resource scheduling of a terminal according to service parameters of a service type requested by the terminal or service parameters of a service type required to be transmitted by a network, and indicating the first granularity of the resource scheduling to the terminal; wherein, the downlink control information of the terminal carries the resource allocated to the terminal and the granularity information of the resource scheduling of the terminal;
indicating the granularity of resource scheduling to the terminal as the first granularity according to one or more of the following modes:
mode 2: determining a first cell network identifier group corresponding to the first granularity according to a corresponding relation between preset granularity and a cell network identifier group, and allocating a first cell network identifier in the first cell network identifier group to the terminal, so that the terminal determines the granularity of resource scheduling as the first granularity corresponding to the first cell network identifier group according to the first cell network identifier group to which the first cell network identifier belongs;
mode 4: determining a first scrambling code corresponding to the first granularity according to the corresponding relation between the preset granularity and the scrambling codes; sending downlink control information scrambled by a first scrambling code to the terminal; before sending the downlink control information, determining the size of the resource indication overhead in the downlink control information of the terminal according to the granularity of the maximum resource indication bit overhead of the same resource, and further generating the downlink control information of the terminal;
mode 5: determining a first resource position corresponding to the first granularity according to the corresponding relation between the preset granularity and the logic or physical resource position of a downlink control channel for transmitting downlink control information, and sending the downlink control information to the terminal according to the first resource position;
and scheduling resources for the terminal according to the first granularity.
2. The method of claim 1, wherein the step of determining the first granularity for resource scheduling of the terminal according to the service parameter of the service type requested by the terminal or according to the service parameter of the service type required to be transmitted by the network comprises:
determining a first service type of a terminal according to service parameters of a service type requested by the terminal or according to service parameters of a service type required to be transmitted by a network;
obtaining a first granularity corresponding to the first service type according to a preset corresponding relation between the service type and the resource scheduling granularity;
and determining the granularity of the terminal resource scheduling as the first granularity.
3. The method of claim 2, wherein determining the first service type of the terminal according to the service parameter of the service type requested by the terminal specifically includes:
determining a first service type of a terminal according to a service parameter of a service type requested by the terminal;
or, receiving a first service type reported by a terminal, and determining that the service type of the terminal is the first service type;
or receiving a first equipment class UE category reported by a terminal, determining a first service type corresponding to the first UE category according to a preset corresponding relation between the UE category and the service type, and determining that the service type of the terminal is the first service type.
4. The method of claim 3, wherein the determining the first service type of the terminal according to the service parameter of the service type requested by the terminal comprises:
and acquiring service parameters of the service type carried by the terminal in an uplink service scheduling request or an uplink synchronous access process, and determining the first service type of the terminal according to the service parameters.
5. The method of claim 2, 3 or 4, wherein the first service type is determined according to more than one service parameter division of services, wherein services with different service parameters correspond to different service types, and the service parameters comprise: the method comprises the steps of service priority, service transmission data volume, reliability index of service requirements, time delay index of service requirements and coverage index of service requirements.
6. A method for determining resource scheduling granularity, comprising:
acquiring granularity indicating information of terminal resource scheduling indicated by a network, wherein the granularity indicating information is used for indicating first granularity corresponding to the terminal, and the first granularity is determined by the network according to the resource scheduling granularity requested by the terminal or the service type required to be transmitted by the network; the network side equipment indicates the granularity of resource scheduling to the terminal as the first granularity, and downlink control information of the terminal carries the resource allocated to the terminal and the granularity information of the resource scheduling of the terminal;
determining the granularity of the terminal resource scheduling according to the granularity indication information;
wherein the network indicates to the terminal that the granularity of resource scheduling is the first granularity according to one or more of the following manners:
mode 2: determining a first cell network identifier group corresponding to the first granularity according to a corresponding relation between preset granularity and a cell network identifier group, and allocating a first cell network identifier in the first cell network identifier group to the terminal, so that the terminal determines the granularity of resource scheduling as the first granularity corresponding to the first cell network identifier group according to the first cell network identifier group to which the first cell network identifier belongs;
mode 4: determining a first scrambling code corresponding to the first granularity according to the corresponding relation between the preset granularity and the scrambling codes; sending downlink control information scrambled by a first scrambling code to the terminal; before sending the downlink control information, determining the size of the resource indication overhead in the downlink control information of the terminal according to the granularity of the maximum resource indication bit overhead of the same resource, and further generating the downlink control information of the terminal;
mode 5: determining a first resource position corresponding to the first granularity according to the corresponding relation between the preset granularity and the logic or physical resource position of a downlink control channel for transmitting the downlink control information, and sending the downlink control information to the terminal according to the first resource position.
7. The method as claimed in claim 6, wherein before the step of obtaining the granularity indication information of the terminal resource scheduling indicated by the network side, the method further comprises:
sending service parameters related to the service type to a network;
or, determining a first service type of the terminal and reporting the first service type to a network;
or determining a first service type of the terminal, determining a first UE category corresponding to the first service type according to a preset corresponding relation between the UE category and the service type, and reporting the first UE category to a network.
8. The method of claim 7, the determining the first traffic type for the terminal comprising: the method comprises the following steps of dividing and determining a first service type of a service according to more than one service parameter of the service, wherein services with different service parameters correspond to different service types, and the service parameters comprise: the service priority, the size of service transmission data volume, the reliability index of service requirement and the time delay index of service requirement.
9. The method of claim 6,
the granularity indication information is granularity information carried in a preset signaling, and the step of determining the granularity of the terminal resource scheduling according to the granularity indication information comprises the following steps: obtaining the granularity of the terminal resource scheduling according to the granularity information carried in the preset signaling;
or, the granularity indication information is a first cell network identifier of the terminal, and the step of determining the granularity of the terminal resource scheduling according to the granularity indication information includes: determining a first cell network identification group to which the first cell network identification belongs; determining a first granularity corresponding to a first cell network identifier group according to a corresponding relation between a preset granularity and the cell network identifier group to obtain the granularity of terminal resource scheduling;
or, the granularity indication information is a first resource location of downlink control information of the terminal, and the step of determining the granularity of terminal resource scheduling according to the granularity indication information includes: and determining a first granularity corresponding to the first resource position according to the corresponding relation between the preset granularity and the logic or physical resource position of the downlink control information to obtain the granularity of the terminal resource scheduling.
10. The method of claim 6,
the granularity indication information is granularity information carried in the detected downlink control information of the terminal, and the step of determining the granularity of the terminal resource scheduling according to the granularity indication information comprises the following steps: obtaining the granularity of the terminal resource scheduling according to the granularity information carried in the downlink control information;
or, the granularity indication information is a first scrambling code adopted when the downlink control information of the terminal is successfully detected; the step of determining the granularity of the terminal resource scheduling according to the granularity indication information comprises the following steps: and determining a first granularity corresponding to the first scrambling code according to the preset corresponding relation between the granularity and the scrambling code, so as to obtain the granularity of the terminal resource scheduling.
11. The method of claim 10,
further detecting the downlink control information of the terminal according to the following mode:
determining the size of the resource indication overhead in the downlink control information of the terminal according to the granularity of the maximum resource indication overhead of the same resource, and further determining the size of the downlink control information of the terminal;
and detecting the downlink control information of the terminal according to the size of the downlink control information.
12. The method of claim 6, further comprising:
determining service parameters related to the uplink service type of the terminal;
and sending an uplink service scheduling request or an uplink synchronous access message carrying the service parameters to a network.
13. A network-side device, comprising:
a granularity determining unit, configured to determine a first granularity of resource scheduling of a terminal according to a service parameter of a service type requested by the terminal or according to a service parameter of a service type that needs to be transmitted by a network;
an indicating unit, configured to indicate the granularity of resource scheduling to the terminal as the first granularity; the downlink control information of the terminal carries the resources allocated to the terminal and the granularity information of the resource scheduling of the terminal;
indicating the granularity of resource scheduling to the terminal as the first granularity according to one or more of the following modes:
mode 2: determining a first cell network identifier group corresponding to the first granularity according to a corresponding relation between preset granularity and a cell network identifier group, and allocating a first cell network identifier in the first cell network identifier group to the terminal, so that the terminal determines the granularity of resource scheduling as the first granularity corresponding to the first cell network identifier group according to the first cell network identifier group to which the first cell network identifier belongs;
mode 4: determining a first scrambling code corresponding to the first granularity according to the corresponding relation between the preset granularity and the scrambling codes; sending downlink control information scrambled by a first scrambling code to the terminal;
mode 5: determining a first resource position corresponding to the first granularity according to the corresponding relation between the preset granularity and the logic or physical resource position of a downlink control channel for transmitting downlink control information, and sending the downlink control information to the terminal according to the first resource position;
the indicating unit, when the method 4 is adopted to indicate the granularity of resource scheduling to the terminal as the first granularity, before the downlink control information is sent, further determines the size of the resource indication overhead in the downlink control information of the terminal according to the granularity of the resource indication overhead of the same resource which is the largest, and further generates the downlink control information of the terminal;
and the scheduling unit is used for scheduling the resources of the terminal according to the first granularity.
14. The network-side device of claim 13,
the granularity determination unit includes:
a service type determining unit, configured to determine a first service type of a terminal according to a service parameter of a service type requested by the terminal, or according to a service parameter of a service type that needs to be transmitted by a network;
and the granularity obtaining unit is used for obtaining a first granularity corresponding to the first service type according to a preset corresponding relation between the service type and the resource scheduling granularity, and determining the granularity of the terminal resource scheduling as the first granularity.
15. The network-side device of claim 14,
the service type determining unit is specifically configured to: determining a first service type of a terminal according to a service parameter of a service type requested by the terminal; or, receiving a first service type reported by a terminal, and determining that the service type of the terminal is the first service type; or receiving a first equipment class UE category reported by a terminal, determining a first service type corresponding to the first UE category according to a preset corresponding relation between the UE category and the service type, and determining that the service type of the terminal is the first service type.
16. The network-side device of claim 15,
the service type determining unit is further configured to obtain a service parameter of a service type carried by the terminal in an uplink service scheduling request or an uplink synchronous access process, and determine the first service type of the terminal according to the service parameter.
17. A terminal, comprising:
the device comprises an information obtaining unit, a resource scheduling unit and a network scheduling unit, wherein the information obtaining unit is used for obtaining granularity indicating information of terminal resource scheduling indicated by a network, the granularity indicating information is used for indicating first granularity corresponding to a terminal, and the first granularity is determined by the network according to the resource scheduling granularity requested by the terminal or the service type required to be transmitted by the network; the network side equipment indicates the granularity of resource scheduling to the terminal as the first granularity, and downlink control information of the terminal carries the resource allocated to the terminal and the granularity information of the resource scheduling of the terminal;
a first granularity determining unit, configured to determine granularity of the terminal resource scheduling according to the granularity indication information;
wherein the network indicates to the terminal that the granularity of resource scheduling is the first granularity according to one or more of the following manners:
mode 2: determining a first cell network identifier group corresponding to the first granularity according to a corresponding relation between preset granularity and a cell network identifier group, and allocating a first cell network identifier in the first cell network identifier group to the terminal, so that the terminal determines the granularity of resource scheduling as the first granularity corresponding to the first cell network identifier group according to the first cell network identifier group to which the first cell network identifier belongs;
mode 4: determining a first scrambling code corresponding to the first granularity according to the corresponding relation between the preset granularity and the scrambling codes; sending downlink control information scrambled by a first scrambling code to the terminal; before sending the downlink control information, determining the size of the resource indication overhead in the downlink control information of the terminal according to the granularity of the maximum resource indication bit overhead of the same resource, and further generating the downlink control information of the terminal;
mode 5: determining a first resource position corresponding to the first granularity according to the corresponding relation between the preset granularity and the logic or physical resource position of a downlink control channel for transmitting the downlink control information, and sending the downlink control information to the terminal according to the first resource position.
18. The terminal of claim 17, further comprising:
a reporting unit, configured to send service parameters related to the service type to a network; or, determining a first service type of the terminal and reporting the first service type to a network; or determining a first service type of the terminal, determining a first UE category corresponding to the first service type according to a preset corresponding relation between the UE category and the service type, and reporting the first UE category to a network.
19. The terminal of claim 18,
the reporting unit is further configured to determine a first service type of a service according to more than one service parameter of the service, where services with different service parameters correspond to different service types, and the service parameters include: the service priority, the size of service transmission data volume, the reliability index of service requirement and the time delay index of service requirement.
20. The terminal of claim 17,
the granularity indication information is granularity information carried in a predetermined signaling, and the granularity determining unit is specifically configured to: obtaining the granularity of the terminal resource scheduling according to the granularity information carried in the preset signaling;
or, the granularity indication information is a first cell network identifier of the terminal, and the granularity determining unit is specifically configured to: determining a first cell network identification group to which the first cell network identification belongs; determining a first granularity corresponding to a first cell network identifier group according to a corresponding relation between a preset granularity and the cell network identifier group to obtain the granularity of terminal resource scheduling;
or, the granularity indication information is a first resource location of the downlink control information of the terminal, and the granularity determining unit is specifically configured to: and determining a first granularity corresponding to the first resource position according to the corresponding relation between the preset granularity and the resource position of the downlink control information to obtain the granularity of the terminal resource scheduling.
21. The terminal of claim 17,
the granularity indication information is granularity information carried in the detected downlink control information of the terminal, and the granularity determining unit is specifically configured to: obtaining the granularity of the terminal resource scheduling according to the granularity information carried in the downlink control information;
or, the granularity indication information is a first scrambling code adopted when the downlink control information of the terminal is successfully detected; the granularity determination unit is specifically configured to: and determining a first granularity corresponding to the first scrambling code according to the preset corresponding relation between the granularity and the scrambling code, so as to obtain the granularity of the terminal resource scheduling.
22. The terminal of claim 21, further comprising:
a detecting unit, configured to determine, according to a granularity at which resource indication overheads of the same resource are the largest, a size of the resource indication overheads in the downlink control information of the terminal, and further determine the size of the downlink control information of the terminal; and detecting the downlink control information of the terminal according to the size of the downlink control information.
23. The terminal of claim 17, further comprising:
a request unit, configured to determine a service parameter related to an uplink service type of the terminal; and sending an uplink service scheduling request or an uplink synchronous access message carrying the service parameters to a network.
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| CN114900818A (en) * | 2019-05-07 | 2022-08-12 | 华为技术有限公司 | Communication method and device |
| CN113133051B (en) * | 2019-12-30 | 2023-04-28 | 中国移动通信集团山西有限公司 | Access resource allocation method, device, base station and medium |
| CN117241400A (en) * | 2020-02-10 | 2023-12-15 | 北京小米移动软件有限公司 | DCI transmission method, DCI transmission device, communication equipment and storage medium |
| CN111615201B (en) * | 2020-04-15 | 2024-02-06 | 北京云智软通信息技术有限公司 | CORESET resource allocation and indication method and device |
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