CN114362897B - Scheduling resource determination method and device - Google Patents
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Abstract
The embodiment of the application provides a method and a device for determining scheduling resources, when a plurality of PDCCHs are configured to schedule the same target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are sent to a terminal through a high-layer signaling, and the additional time slot offset of the target scheduling resource relative to each PDCCH is sent to the terminal through indication information, so that the terminal jointly determines the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH, and the same target scheduling resource is scheduled by the plurality of PDCCHs; and, the initial time slot offset of a target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are indicated to the terminal through the high-layer signaling, so that the overhead of the high-layer signaling is effectively reduced.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for determining scheduling resources.
Background
Currently, in the New Radio (NR) protocol, only each physical downlink control channel (physical downlink control channel, PDCCH) is supported to independently schedule different scheduling resources. For example, a physical downlink shared channel (physical downlink shared channel, PDSCH), a physical uplink shared channel (physical uplink shared channel, PUSCH), or an uplink and downlink reference signal to transmit uplink data or reference signals through scheduling resources.
In the prior art, when a base station configures scheduling resources by a plurality of PDCCHs, only PDCCHs are supported to independently schedule different scheduling resources. The specific configuration process comprises the following steps: the base station needs to configure scheduling resources for each PDCCH through higher layer signaling, respectively. The high-level signaling comprises a time slot offset of each scheduling resource relative to a PDCCH configured by the high-level signaling and configuration information of the scheduling resource, so that a terminal determines the scheduling resource of the PDCCH according to the time slot offset of the scheduling resource relative to the PDCCH and the configuration information of the scheduling resource, and uplink data or a reference signal is sent through the scheduling resource; or receiving downlink data or reference signals through the scheduling resources.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining scheduling resources, which realize that a plurality of PDCCHs schedule the same scheduling resources and reduce the overhead of high-layer signaling.
In a first aspect, an embodiment of the present application provides a method for determining a scheduling resource, where the method for determining a scheduling resource may include:
sending high-layer signaling to the terminal; the higher layer signaling includes initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
Sending indication information to a terminal; the indication information comprises an additional time slot offset of the target scheduling resource relative to each PDCCH; the indication information is used for indicating the terminal to determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to the PDCCHs, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to the PDCCHs.
In one possible implementation, the method further includes:
and determining the time slot position of the target scheduling resource.
And determining the time slot position of each PDCCH according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH.
And transmitting PDCCHs to the terminal at the time slot positions of the PDCCHs.
In one possible implementation, the indication information is configured to each PDCCH through the higher layer signaling.
In one possible implementation, the indication information is carried in the message content of each PDCCH.
In a second aspect, an embodiment of the present application further provides a scheduling method for scheduling a resource, where the scheduling method for scheduling a resource may include:
Receiving a high-layer signaling sent by network equipment; the higher layer signaling includes initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
Receiving indication information sent by the network equipment; wherein the indication information includes an additional slot offset of the target scheduling resource with respect to each PDCCH.
And determining the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH.
In one possible implementation, the method further includes:
receiving PDCCHs sent by the network equipment at the time slot positions of the PDCCHs; the time slot position of each PDCCH is determined by the network equipment according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH.
In one possible implementation, the indication information is configured to each PDCCH through the higher layer signaling.
In one possible implementation, the indication information is carried in the message content of each PDCCH.
In a third aspect, an embodiment of the present application further provides a device for determining a scheduling resource, where the device for determining a scheduling resource may include:
a sending unit, configured to send a higher layer signaling to a terminal; the higher layer signaling includes initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
The sending unit is further used for sending indication information to the terminal; the indication information comprises an additional time slot offset of the target scheduling resource relative to each PDCCH; the indication information is used for indicating the terminal to determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to the PDCCHs, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to the PDCCHs.
In one possible implementation manner, the determining means for scheduling resources may include:
a processing unit, configured to determine a slot position of the target scheduling resource; determining the time slot position of each PDCCH according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH;
the sending unit is further configured to send PDCCHs to the terminal at slot positions of the PDCCHs.
In one possible implementation, the indication information is configured to each PDCCH through the higher layer signaling.
In one possible implementation, the indication information is carried in the message content of each PDCCH.
In a fourth aspect, an embodiment of the present application further provides a scheduling apparatus for scheduling a resource, where the scheduling apparatus for scheduling a resource may include:
a receiving unit, configured to receive a higher layer signaling sent by a network device; the higher layer signaling includes initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
The receiving unit is further configured to receive indication information sent by the network device; wherein the indication information includes an additional slot offset of the target scheduling resource with respect to each PDCCH.
And the processing unit is used for determining the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH.
In a possible implementation manner, the receiving unit is further configured to receive a PDCCH sent by the network device at a slot position of each PDCCH; the time slot position of each PDCCH is determined by the network equipment according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH.
In one possible implementation, the indication information is configured to each PDCCH through the higher layer signaling.
In one possible implementation, the indication information is carried in the message content of each PDCCH.
In a fifth aspect, embodiments of the present application further provide a communications apparatus, the apparatus including a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform a method for determining a scheduling resource as described in any one of the possible implementations of the first aspect; alternatively, the processor executes a computer program stored in the memory to cause the apparatus to perform a method of determining scheduling resources as described in any one of the possible implementations of the second aspect above.
In a sixth aspect, embodiments of the present application further provide a readable storage medium storing instructions that, when executed, cause a method for determining a scheduling resource as described in any one of the possible implementations of the first aspect to be implemented; alternatively, the instructions, when executed, cause a method of determining scheduling resources as described in any one of the possible implementations of the second aspect above to be implemented.
Therefore, when the same target scheduling resource is configured by the plurality of PDCCHs, the method and the device for determining the scheduling resource send the initial time slot offset of the target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource to the terminal through the high-layer signaling, and after the additional time slot offset of the target scheduling resource relative to each PDCCH is determined, the additional time slot offset of the target scheduling resource relative to each PDCCH is sent to the terminal through the indication information, so that the terminal can jointly determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH, and the same target scheduling resource is scheduled by the plurality of PDCCHs. And, the initial time slot offset of a target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are indicated to the terminal through the high-layer signaling, so that the overhead of the high-layer signaling is effectively reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of a prior art provided in an embodiment of the present application;
fig. 2 is a schematic view of a scenario provided in an embodiment of the present application;
fig. 3 is a flow chart of a method for determining scheduling resources according to an embodiment of the present application;
fig. 4 is a schematic diagram of PDCCH and target scheduling resources according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a device for determining scheduling resources according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another apparatus for determining scheduling resources according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
In embodiments of the present invention, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. In the text description of the present invention, the character "/" generally indicates that the front-rear associated object is an or relationship.
The method for determining the scheduling resources can be applied to a scene of configuring the scheduling resources. The terminal sends uplink data or reference signals through scheduling resources; or when receiving downlink data or reference signals through the scheduling resources, the base station needs to configure the scheduling resources for a plurality of PDCCHs through configuration information in a higher layer signaling, for example, the scheduling resources can be a physical downlink shared channel (physical downlink shared channel, PDSCH), a physical uplink shared channel (physical uplink shared channel, PUSCH), an uplink and downlink reference signal, or the like. In the prior art, when a base station configures scheduling resources by a plurality of PDCCHs, only PDCCHs are supported to independently schedule different scheduling resources. The specific configuration process comprises the following steps: the base station needs to configure scheduling resources for each PDCCH through higher layer signaling, respectively. The high-level signaling comprises a time slot offset of each scheduling resource relative to a PDCCH configured by the high-level signaling and configuration information of the scheduling resource, so that a terminal determines the scheduling resource of the PDCCH according to the time slot offset of the scheduling resource relative to the PDCCH and the configuration information of the scheduling resource, and uplink data or a reference signal is sent through the scheduling resource; or receiving downlink data or reference signals through the scheduling resources.
For example, taking a base station as an example to configure scheduling resources for PDCCH1, PDCCH2 and PDCCH3 through higher layer signaling, fig. 1 is a schematic diagram of a prior art provided in an embodiment of the present application, where three PDCCHs independently schedule different scheduling resources, PDCCH1 schedule scheduling resource 1, PDCCH2 schedule scheduling resource 2, and PDCCH3 schedule scheduling resource 3. When the base station configures scheduling resources for the PDCCH1, the PDCCH2 and the PDCCH3, the base station can configure the scheduling resource 1 for the PDCCH1, configure the scheduling resource 2 for the PDCCH2 and configure the scheduling resource 3 for the PDCCH3 through a high-layer signaling; the higher layer signaling includes configuration information of a time slot offset 1 of a scheduling resource 1 relative to the PDCCH1 and the scheduling resource 1, so that the terminal determines the scheduling resource 1 of the PDCCH1 according to the time slot offset 1 of the scheduling resource 1 relative to the PDCCH1 and the configuration information of the scheduling resource 1; the high-layer signaling comprises a time slot offset 2 of the scheduling resource 2 relative to the PDCCH2 and configuration information of the scheduling resource 2, so that the terminal determines the scheduling resource 2 of the PDCCH1 according to the time slot offset 2 of the scheduling resource 2 relative to the PDCCH2 and the configuration information of the scheduling resource 2; the higher layer signaling includes the time slot offset 3 of the scheduling resource 3 relative to the PDCCH3 and the configuration information of the scheduling resource 3, so that the terminal determines the scheduling resource 3 of the PDCCH1 according to the time slot offset 3 of the scheduling resource 3 relative to the PDCCH3 and the configuration information of the scheduling resource 3, thereby realizing that different scheduling resources 1, 2 and 3 are independently configured for the PDCCH1, 2 and 3.
In order to improve the reliability of PDCCH transmission, it may be attempted to schedule the same scheduling resources for multiple PDCCHs. As shown in fig. 2, fig. 2 is a schematic view of a scenario provided in the embodiment of the present application, taking a case that a plurality of PDCCHs include PDCCH1, PDCCH2 and PDCCH3, and based on the existing configuration method for independently scheduling different scheduling resources by the PDCCH, a specific implementation process of the base station when configuring target scheduling resources for PDCCH1, PDCCH2 and PDCCH3 may be: the base station can configure target scheduling resources for the PDCCH1 through high-level signaling, configure target scheduling resources for the PDCCH2, and configure target scheduling resources for the PDCCH 3; the high-level signaling comprises a time slot offset 1 of a target scheduling resource relative to the PDCCH1 and configuration information of the target scheduling resource, so that the terminal determines the target scheduling resource according to the time slot offset 1 of the target scheduling resource relative to the PDCCH1 and the configuration information of the target scheduling resource; the high-layer signaling comprises the time slot offset 2 of the target scheduling resource relative to the PDCCH2 and the configuration information of the target scheduling resource, so that the terminal determines the target scheduling resource according to the time slot offset 2 of the target scheduling resource relative to the PDCCH2 and the configuration information of the target scheduling resource; and the high-layer signaling comprises the time slot offset 3 of the target scheduling resource relative to the PDCCH3 and the configuration information of the target scheduling resource, so that the terminal determines the target scheduling resource according to the time slot offset 3 of the target scheduling resource relative to the PDCCH3 and the configuration information of the target scheduling resource, thereby realizing that the PDCCH1, the PDCCH2 and the PDCCH3 schedule the same target scheduling resource, and further improving the reliability of the scheduling information.
However, when the same target scheduling resource is scheduled by PDCCH1, PDCCH2 and PDCCH3 by adopting the scheduling scheme, since the same target scheduling resource is configured for PDCCH1, PDCCH2 and PDCCH3, the configuration information of the target scheduling resource configured for PDCCH1, the configuration information of the target scheduling resource configured for PDCCH2 and the configuration information of the target scheduling resource configured for PDCCH3 in the higher layer signaling are all the same configuration information, which may result in a large overhead of the higher layer signaling.
Therefore, in order to achieve the same target scheduling resource for multiple PDCCHs under the condition of reducing the overhead of higher layer signaling, the configuration information of the target scheduling resource can be indicated to multiple PDCCHs by considering the configuration information of the same target scheduling resource, in addition, when the time slot offset of the target scheduling resource relative to multiple PDCCHs is indicated to a terminal, in consideration of the fact that a field is used for indicating the time slot offset of the scheduling resource relative to the PDCCHs in the original protocol, in order not to change the original protocol, when the time slot offset of the target scheduling resource relative to the multiple PDCCHs is indicated to the terminal, the time slot offset indicated by the field in the original protocol can be continuously adopted, however, in the actual scheduling process, since the time slot offset of the target scheduling resource relative to each PDCCH is different, the target scheduling resource cannot be accurately found by the time slot offset terminal indicated by the field only, in order to make the terminal can accurately find the target scheduling resource based on the time slot offset indicated by the field in the original protocol, and additionally indicate an offset to the terminal for each PDCCH, so that the terminal can determine the common target scheduling resource to each PDCCH.
Based on the technical conception, the embodiment of the application provides a method for determining scheduling resources, wherein network equipment sends a high-layer signaling to a terminal, the high-layer signaling comprises initial time slot offset of target scheduling resources relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resources, and the PDCCHs are used for scheduling the target scheduling resources; determining the additional time slot offset of the target scheduling resource relative to each PDCCH; transmitting indication information comprising the additional time slot offset of the target scheduling resource relative to each PDCCH to the terminal; thus, the terminal can jointly determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH.
For example, the target scheduling resource may be PDSCH, PUSCH, or uplink and downlink reference signals, etc., and may be specifically set according to actual needs, where the type of the target scheduling resource is not limited further in the embodiments of the present application.
In this embodiment of the present application, the configuration information of the target scheduling resource may include a starting position of the target scheduling resource in the time slot and a number of symbols occupied by the target scheduling resource in the time slot, and of course, other information may also be included, where the embodiment of the present application only uses an example that the configuration information of the target scheduling resource may include the starting position of the target scheduling resource in the time slot and the number of symbols occupied by the target scheduling resource in the time slot as an illustration, but the embodiment of the present application is not limited thereto.
It may be understood that, in the embodiment of the present application, the initial time slot offset of the target scheduling resource included in the higher layer signaling with respect to each PDCCH in the multiple physical downlink control channels PDCCHs, that is, the offset of the scheduling resource indicated by the field in the original protocol with respect to the PDCCH, is the same for the multiple PDCCHs, and it is because the same initial time slot offset indicated by the field cannot accurately indicate the target scheduling resource, therefore, only for each PDCCH, an offset is additionally indicated to the terminal, so that the terminal may determine the target scheduling resource together by additionally indicating an offset to the terminal according to the time slot offset indicated by the field in the original protocol and for each PDCCH.
In addition, in the embodiment of the present application, when the terminal determines the target scheduling resource together according to the initial slot offset of the target scheduling resource with respect to each PDCCH, the configuration information of the target scheduling resource, and the additional slot offset of the target scheduling resource with respect to each PDCCH, it is essentially: the network device sends PDCCHs to the terminal at the time slot positions of the PDCCHs, the terminal correspondingly receives all PDCCHs or partial PDCCHs in the PDCCHs, and determines the time slot offset of the target scheduling resource relative to the PDCCHs according to the initial time slot offset of the target scheduling resource relative to the PDCCHs and the additional time slot offset of the target scheduling resource relative to the PDCCHs for the PDCCHs in the received all PDCCHs or partial PDCCHs, and then determines the target scheduling resource of the PDCCHs according to the time slot positions of the PDCCHs, the time slot offset of the target scheduling resource relative to the PDCCHs and the configuration information of the target scheduling resource. Therefore, it can be seen that, in the embodiment of the present application, when the terminal determines the target scheduling resource together according to the initial slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource, and the additional slot offset of the target scheduling resource relative to each PDCCH, each PDCCH is all PDCCHs or some PDCCHs in the plurality of PDCCHs received by the terminal, and does not include PDCCHs not received by the terminal.
In this embodiment of the present application, when sending, to a terminal, indication information including an additional slot offset of a target scheduling resource with respect to each PDCCH, the indication information may be carried in a higher layer signaling, or may be carried in a message content of a PDCCH, or may of course be carried in other messages, and may specifically be set according to actual needs, where the embodiment of the present application is only described by taking, as an example, that the indication information may be carried in the higher layer signaling or in the message content of the PDCCH, but is not limited to this.
It can be seen that when a plurality of PDCCHs schedule the same target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are sent to the terminal through the higher layer signaling, and after the additional time slot offset of the target scheduling resource relative to each PDCCH is determined, the additional time slot offset of the target scheduling resource relative to each PDCCH is sent to the terminal through the indication information, so that the terminal can determine the target scheduling resource together according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH, thereby realizing that the plurality of PDCCHs schedule the same target scheduling resource. And, the initial time slot offset of a target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are indicated to the terminal through the high-layer signaling, so that the overhead of the high-layer signaling is effectively reduced.
In the technical solution of the present application, the indication information is set for the plurality of PDCCHs, so that the indication information includes an additional time slot offset of the target scheduling resource relative to each PDCCH, so that the terminal determines the time slot offset of the target scheduling resource relative to each PDCCH according to the initial time slot offset and the additional time slot offset of the target scheduling resource relative to each PDCCH; of course, the indication information may also be set for a plurality of search spaces or control resource sets (control resource set, CORESET) such that the slot offset of the target scheduling resource with respect to each PDCCH is determined according to the indication information set for the plurality of search spaces or. The CORESET is used for indicating the size of the resources occupied by the PDCCH; the search space is used for indicating the number of the PDCCH candidates and the time slot positions, and the time-frequency domain resource positions of the PDCCH candidates can be completely determined by associating one CORESET.
Among them, 1) a terminal, also called User Equipment (UE), mobile Station (MS), mobile Terminal (MT), etc., is a device that provides voice/data connectivity to a user, for example, a handheld device with a wireless connection function, or an in-vehicle device, etc. Currently, some examples of terminals are: a mobile phone, a tablet, a notebook, a palm, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), or a wireless terminal in smart home (smart home), and the like.
2) A network device is a device in a wireless network, such as a radio access network (radio access network, RAN) node that accesses a terminal to the wireless network. Currently, some examples of RAN nodes are: a gNB, a transmission and reception point (transmission reception point, TRP), an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a wireless fidelity (wireless fidelity, wifi) Access Point (AP), etc. In one network architecture, the network devices may include Centralized Unit (CU) nodes, or Distributed Unit (DU) nodes, or RAN devices including CU nodes and DU nodes.
The method for determining the scheduling resource provided by the embodiment of the application is described in detail below through a detailed embodiment. It is to be understood that in the embodiments of the present application, the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 3 is a flowchart of a method for determining a scheduling resource according to an embodiment of the present application, where the method for determining a scheduling resource may be performed by a software and/or hardware device, and as an example, referring to fig. 3, the method for determining a scheduling resource may include:
and S301, the network equipment sends high-layer signaling to the terminal.
The higher layer signaling includes initial time slot offset of the target scheduling resource relative to each PDCCH in the plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
For example, referring to fig. 4, fig. 4 is a schematic diagram of a PDCCH and a target scheduling resource provided in the embodiment of the present application, and also taking a case that a plurality of PDCCHs include PDCCH1, PDCCH2 and PDCCH3 as examples, when configuring the same target scheduling resource for PDCCH1, PDCCH2 and PDCCH3, a network device may configure an initial time slot offset for a terminal and configuration information of the target scheduling resource in advance through a higher layer signaling, where the higher layer signaling may include an initial time slot offset of the target scheduling resource relative to PDCCH1, an initial time slot offset of the target scheduling resource relative to PDCCH2, an initial time slot offset of the target scheduling resource relative to PDCCH3 and configuration information of the target scheduling resource that is jointly scheduled. The initial time slot offset of the target scheduling resource relative to the PDCCH1 and the initial time slot offset of the target scheduling resource relative to the PDCCH2 are the same, and the values of the initial time slot offset of the target scheduling resource relative to the PDCCH3 are the time slot offsets indicated by the fields in the original protocol.
However, since only the same initial slot offset indicated by the field in the original protocol cannot accurately indicate the target scheduling resource, the network device needs to additionally indicate an additional slot offset to the terminal for each PDCCH, so that the terminal can determine the target scheduling resource together according to the slot offset indicated by the field in the original protocol and the additional slot offset of the target scheduling resource relative to each PDCCH.
S302, sending indication information to the terminal.
The indication information includes an additional time slot offset of the target scheduling resource relative to each PDCCH, where the additional time slot offset of the target scheduling resource relative to each PDCCH is preconfigured by the network device according to a time slot position of the target scheduling resource.
As shown in fig. 4, taking the example that the plurality of PDCCHs include PDCCH1, PDCCH2 and PDCCH3, the indication information includes an additional slot offset 1 of the target scheduling resource with respect to PDCCH1, an additional slot offset 2 of the target scheduling resource with respect to PDCCH2 and an additional slot offset 3 of the target scheduling resource with respect to PDCCH 3.
For example, the indication information may be configured to each PDCCH through higher layer signaling. Or, the indication information is carried in the message content of each PDCCH. It can be understood that when configuring a plurality of PDCCHs to schedule the same target scheduling resource, the additional time slot offset of the target scheduling resource relative to each PDCCH is configured to each PDCCH through higher layer signaling, which has the following advantages: the same scheduling resource can be scheduled by a plurality of PDCCHs without modifying DCI in the PDCCHs. The additional time slot offset of the target scheduling resource relative to each PDCCH is carried in the message content of the PDCCH to be indicated to the terminal, which has the advantages that: the higher layer does not need to modify configuration, and can realize that a plurality of PDCCHs schedule the same scheduling resource only by modifying DCI in the PDCCHs.
After the network device pre-configures the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH, and the additional time slot offset of the target scheduling resource relative to each PDCCH, the network device can determine the time slot position of each PDCCH according to the time slot position of the pre-configured target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH, and the additional time slot offset of the target scheduling resource relative to each PDCCH; and transmitting the PDCCH to the terminal at the slot position of each PDCCH so that the terminal acquires each PDCCH, that is, the following S303 is executed:
and S303, the network equipment sends PDCCHs to the terminal at the time slot positions of the PDCCHs.
It should be noted that, in the embodiment of the present application, if the indication information including the additional time slot offset of the target scheduling resource relative to each PDCCH is configured to each PDCCH through the higher layer signaling, when the network device sends the PDCCH to the terminal, the message content of the PDCCH does not need to carry the indication information any more; in contrast, if the indication information including the additional slot offset of the target scheduling resource with respect to each PDCCH is not configured to each PDCCH through the higher layer signaling, when the network device sends the PDCCH to the terminal, the indication information needs to be carried in the message content of the PDCCH, so that the indication information is sent to the terminal through the message content of the PDCCH.
As shown in fig. 4, taking a case that a plurality of PDCCHs include PDCCH1, PDCCH2 and PDCCH3 as an example, after the network device configures the slot position of the target scheduling resource, the initial slot offset of the target scheduling resource relative to PDCCH1 and the extra slot offset 1 of the target scheduling resource relative to PDCCH1 in advance, the network device may determine the slot position of PDCCH1 according to the slot position of the target scheduling resource, the initial slot offset of the target scheduling resource relative to PDCCH1 and the extra slot offset 1 of the target scheduling resource relative to PDCCH1 which are configured in advance; transmitting the PDCCH1 to the terminal at the time slot position of the PDCCH1 so that the terminal acquires the PDCCH1; after the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to the PDCCH2, and the additional time slot offset 2 of the target scheduling resource relative to the PDCCH2 are preconfigured, the time slot position of the PDCCH2 can be determined according to the time slot position of the preconfigured target scheduling resource, the initial time slot offset of the target scheduling resource relative to the PDCCH2, and the additional time slot offset 2 of the target scheduling resource relative to the PDCCH2; transmitting the PDCCH2 to the terminal at the time slot position of the PDCCH2 so that the terminal acquires the PDCCH2; after the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to the PDCCH3, and the additional time slot offset 3 of the target scheduling resource relative to the PDCCH3 are preconfigured, the time slot position of the PDCCH3 can be determined according to the time slot position of the preconfigured target scheduling resource, the initial time slot offset of the target scheduling resource relative to the PDCCH3, and the additional time slot offset 3 of the target scheduling resource relative to the PDCCH1; and transmits the PDCCH3 to the terminal at the slot position of the PDCCH3 so that the terminal acquires the PDCCH3.
S304, the terminal determines the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH.
It may be understood that, after the network device sends PDCCHs to the terminal at the slot positions of the PDCCHs, the terminal may determine the slot positions of the PDCCHs based on the received PDCCHs, determine the slot offset of the target scheduling resource with respect to the PDCCHs according to the initial slot offset and the additional slot offset of the target scheduling resource with respect to the PDCCHs, and then determine the target scheduling resource for scheduling the PDCCHs according to the slot offset of the target scheduling resource with respect to the PDCCHs, the configuration information of the target scheduling resource, and the slot positions of the PDCCHs.
Continuing to combine with fig. 4, when determining the target scheduling resources scheduled by PDCCH1, PDCCH2 and PDCCH3, the terminal may determine the time slot offset of the target scheduling resource relative to PDCCH1 according to the initial time slot offset and the additional time slot offset 1 of the target scheduling resource relative to PDCCH1, and accurately find the target scheduling resource scheduled by PDCCH1 according to the time slot offset of the target scheduling resource relative to PDCCH1, the configuration information of the target scheduling resource and the time slot position of PDCCH 1; similarly, the terminal can determine the time slot offset of the target scheduling resource relative to the PDCCH2 according to the initial time slot offset and the additional time slot offset 2 of the target scheduling resource relative to the PDCCH2, and accurately find the target scheduling resource scheduled by the PDCCH2 according to the time slot offset of the target scheduling resource relative to the PDCCH2, the configuration information of the target scheduling resource and the time slot position of the PDCCH 2; the terminal can determine the time slot offset of the target scheduling resource relative to the PDCCH3 according to the initial time slot offset and the additional time slot offset 1 of the target scheduling resource relative to the PDCCH3, and accurately find the target scheduling resource scheduled by the PDCCH3 according to the time slot offset of the target scheduling resource relative to the PDCCH3, the configuration information of the target scheduling resource and the time slot position of the PDCCH3, thereby realizing the scheduling of the same target scheduling resource by the PDCCH1, the PDCCH2 and the PDCCH 3.
Therefore, when a plurality of PDCCHs schedule the same target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are sent to the terminal through a high-layer signaling, and the additional time slot offset of the target scheduling resource relative to each PDCCH is sent to the terminal through the message content of each PDCCH, so that the terminal jointly determines the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH, and the purpose that the plurality of PDCCHs schedule the same target scheduling resource is achieved. And, the initial time slot offset of a target scheduling resource relative to each PDCCH and the configuration information of the target scheduling resource are indicated to the terminal through the high-layer signaling, so that the overhead of the high-layer signaling is effectively reduced.
Fig. 5 is a schematic structural diagram of a device 50 for determining a scheduling resource according to an embodiment of the present application, for example, referring to fig. 5, the device 50 for determining a scheduling resource may include:
a sending unit 501, configured to send higher layer signaling to a terminal; the higher layer signaling includes initial time slot offset of the target scheduling resource relative to each PDCCH in the plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
A transmitting unit 501, configured to transmit indication information to a terminal; the indication information comprises an additional time slot offset of the target scheduling resource relative to each PDCCH; the indication information is used for indicating the terminal to determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH.
Optionally, the determining means 50 for scheduling resources may include:
a processing unit 502, configured to determine a slot position of a target scheduling resource; determining the time slot position of each PDCCH according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH;
transmitting section 501 is also configured to transmit PDCCHs to the terminal at slot positions of the PDCCHs.
Optionally, the indication information is configured to each PDCCH through higher layer signaling.
Optionally, the indication information is carried in the message content of each PDCCH.
The determining device 50 for scheduling resources shown in the embodiment of the present application may execute the determining method for scheduling resources on the network device side shown in any one of the embodiments, and the implementation principle and beneficial effects of the determining method for scheduling resources on the network device side are similar to those of the determining method for scheduling resources on the network device side, which can be referred to herein and will not be described in detail.
Fig. 6 is a schematic structural diagram of another apparatus 60 for determining scheduling resources according to an embodiment of the present application, for example, referring to fig. 6, the apparatus 60 for determining scheduling resources may include:
a receiving unit 601, configured to receive a higher layer signaling sent by a network device; the higher layer signaling includes initial time slot offset of the target scheduling resource relative to each PDCCH in the plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are all used for scheduling the target scheduling resource.
The receiving unit 601 is further configured to receive indication information sent by the network device; wherein the indication information includes an additional slot offset of the target scheduling resource with respect to each PDCCH.
A processing unit 602, configured to determine the target scheduling resource according to an initial slot offset of the target scheduling resource with respect to each PDCCH and an additional slot offset of the target scheduling resource with respect to each PDCCH.
Optionally, the receiving unit 601 is further configured to receive PDCCHs sent by the network device at slot positions of each PDCCH; the time slot position of each PDCCH is determined by the network equipment according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH.
Optionally, the indication information is configured to each PDCCH through higher layer signaling.
Optionally, the indication information is carried in the message content of each PDCCH.
The determining device 60 for scheduling resources shown in the embodiment of the present application may execute the determining method for scheduling resources on the terminal side shown in any of the embodiments, and the implementation principle and beneficial effects of the determining method for scheduling resources on the terminal side are similar to those of the determining method for scheduling resources on the terminal side, and may refer to the implementation principle and beneficial effects of the determining method for scheduling resources on the terminal side, which are not described herein.
Fig. 7 is a schematic structural diagram of a communication device 70 provided in the embodiment of the present application, for example, referring to fig. 7, the communication device 70 may include a processor 701 and a memory 702, where the memory 702 stores a computer program, and the processor 701 executes the computer program stored in the memory 702, so that the device executes the method for determining a scheduling resource on a terminal side shown in any of the foregoing embodiments; alternatively, the processor 701 executes the computer program stored in the memory 702, so that the apparatus executes the method for determining the scheduling resource on the network device side shown in any of the foregoing embodiments, and the implementation principle and the beneficial effects of the method are similar to those of the method for determining the scheduling resource on the terminal side or the network device side, and are not described herein again.
The embodiment of the application also provides a readable storage medium, which is used for storing instructions, and when the instructions are executed, the method for determining the scheduling resources of the terminal side shown in any embodiment is realized; or when the instruction is executed, the method for determining the scheduling resource on the network device side shown in any of the above embodiments is implemented, and the implementation principle and the beneficial effects of the method are similar to those of the method for determining the scheduling resource on the terminal side or the network device side, and are not described herein.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection illustrated or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional module is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (english: processor) to perform some steps of the methods of the embodiments of the present application.
It should be understood that the above processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: digital Signal Processor, abbreviated as DSP), application specific integrated circuits (english: application Specific Integrated Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile memory NVM, such as at least one magnetic disk memory, and may also be a U-disk, a removable hard disk, a read-only memory, a magnetic disk or optical disk, etc.
The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the buses in the drawings of the present application are not limited to only one bus or one type of bus.
The computer-readable storage medium described above may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. A method for determining a scheduling resource, comprising:
sending high-layer signaling to the terminal; the high-level signaling comprises initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, the plurality of PDCCHs are used for scheduling the target scheduling resource, and the initial time slot offset is the offset of the scheduling resource indicated by a field in an original protocol relative to the PDCCH;
Sending indication information to a terminal; the indication information comprises an additional time slot offset of the target scheduling resource relative to each PDCCH; the indication information is used for indicating the terminal to determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to the PDCCHs, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to the PDCCHs, the indication information is configured to the PDCCHs through the high-layer signaling, and the indication information is carried in the message content of the PDCCHs.
2. The method according to claim 1, wherein the method further comprises:
determining the time slot position of the target scheduling resource;
determining the time slot position of each PDCCH according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH;
and transmitting PDCCHs to the terminal at the time slot positions of the PDCCHs.
3. A scheduling method for scheduling resources, comprising:
receiving a high-layer signaling sent by network equipment; the higher layer signaling comprises initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are used for scheduling the target scheduling resource;
Receiving indication information sent by the network equipment; the indication information comprises an additional time slot offset of the target scheduling resource relative to the PDCCHs, the indication information is configured to the PDCCHs through the high-layer signaling, and the indication information is carried in the message content of the PDCCHs;
and determining the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to each PDCCH, wherein the initial time slot offset is the offset of the scheduling resource indicated by a field in the original protocol relative to the PDCCH.
4. A method according to claim 3, characterized in that the method further comprises:
receiving PDCCHs sent by the network equipment at the time slot positions of the PDCCHs; the time slot position of each PDCCH is determined by the network equipment according to the time slot position of the target scheduling resource, the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH.
5. A scheduling resource determining apparatus, comprising:
a sending unit, configured to send a higher layer signaling to a terminal; the high-level signaling comprises initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, the plurality of PDCCHs are used for scheduling the target scheduling resource, and the initial time slot offset is the offset of the scheduling resource indicated by a field in an original protocol relative to the PDCCH;
the sending unit is further used for sending indication information to the terminal; the indication information comprises an additional time slot offset of the target scheduling resource relative to each PDCCH; the indication information is used for indicating the terminal to determine the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to the PDCCHs, the configuration information of the target scheduling resource and the additional time slot offset of the target scheduling resource relative to the PDCCHs, the indication information is configured to the PDCCHs through the high-layer signaling, and the indication information is carried in the message content of the PDCCHs.
6. A scheduling apparatus for scheduling resources, comprising:
A receiving unit, configured to receive a higher layer signaling sent by a network device; the higher layer signaling comprises initial time slot offset of a target scheduling resource relative to each PDCCH in a plurality of physical downlink control channels PDCCHs and configuration information of the target scheduling resource, and the plurality of PDCCHs are used for scheduling the target scheduling resource;
the receiving unit is further configured to receive indication information sent by the network device; the indication information comprises an additional time slot offset of the target scheduling resource relative to the PDCCHs, the indication information is configured to the PDCCHs through the high-layer signaling, and the indication information is carried in the message content of the PDCCHs;
and the processing unit is used for determining the target scheduling resource according to the initial time slot offset of the target scheduling resource relative to each PDCCH and the additional time slot offset of the target scheduling resource relative to each PDCCH, wherein the initial time slot offset is the offset of the scheduling resource indicated by a field in the original protocol relative to the PDCCH.
7. A communication apparatus, characterized in that the apparatus comprises a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the apparatus to perform the method of determining a scheduling resource according to any of the preceding claims 1-2; alternatively, the processor executes a computer program stored in the memory to cause the apparatus to perform the scheduling method of scheduling resources according to any one of the preceding claims 3-4.
8. A readable storage medium storing instructions that, when executed, cause a method of determining a scheduling resource according to any one of claims 1-2; alternatively, the instructions, when executed, cause a scheduling method of scheduling resources as claimed in any one of the preceding claims 3-4 to be implemented.
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| PCT/CN2021/122775 WO2022078253A1 (en) | 2020-10-13 | 2021-10-09 | Scheduling resource determining method and device |
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| WO2018195965A1 (en) * | 2017-04-28 | 2018-11-01 | Oppo广东移动通信有限公司 | Channel location indication method, and related product |
| CN110034903A (en) * | 2018-01-12 | 2019-07-19 | 电信科学技术研究院有限公司 | Resource indicating method, resource determining method, device, base station and terminal |
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| WO2018195965A1 (en) * | 2017-04-28 | 2018-11-01 | Oppo广东移动通信有限公司 | Channel location indication method, and related product |
| CN110034903A (en) * | 2018-01-12 | 2019-07-19 | 电信科学技术研究院有限公司 | Resource indicating method, resource determining method, device, base station and terminal |
| CN111435877A (en) * | 2019-01-11 | 2020-07-21 | 中兴通讯股份有限公司 | Resource allocation method and device |
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