CN107666718B

CN107666718B - Transmission resource confirmation method, user terminal, base station and system

Info

Publication number: CN107666718B
Application number: CN201610617673.0A
Authority: CN
Inventors: 王磊; 潘学明; 高雪娟
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-07-29
Filing date: 2016-07-29
Publication date: 2021-04-30
Anticipated expiration: 2036-07-29
Also published as: CN107666718A; WO2018019171A1

Abstract

The invention provides a transmission resource confirmation method, UE, a base station and a system, wherein the method comprises the following steps: the method comprises the steps that UE receives downlink control information sent by a base station, wherein the downlink control information comprises resource information, and the resource information is used for representing the resource allocation condition in a control area of a time interval; and the UE determines resources for transmitting data in the control region according to the resource information. The embodiment of the invention can improve the resource utilization rate.

Description

Transmission resource confirmation method, user terminal, base station and system

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a transmission resource confirmation method, a User Equipment (UE), a base station, and a system.

Background

With the development of communication technology, communication services are more and more diversified, for example: services such as augmented reality, virtual reality, ultra-high definition (3D) video, mobile cloud, and in the future, mobile medical, car networking, smart home, industrial control, environmental monitoring, and the like will promote explosive growth of communication services. However, as communication traffic grows, communication resources are limited. However, improving the resource utilization rate is beneficial to adapting to the increase of communication services in limited communication resources, so how to improve the resource utilization rate is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The invention aims to provide a transmission resource confirmation method, UE, a base station and a system, and solves the problem of how to improve the resource utilization rate.

In order to achieve the above object, an embodiment of the present invention provides a transmission resource confirmation method, including:

the method comprises the steps that UE receives downlink control information sent by a base station, wherein the downlink control information comprises resource information, and the resource information is used for representing the resource allocation condition in a control area of a time interval;

and the UE determines resources for transmitting data in the control region according to the resource information.

Optionally, the resource information is used to indicate resources occupied by a control channel in a control region of a time interval;

the UE determines resources used for transmitting data in the control region according to the resource information, and the determining includes:

and the UE determines resources occupied by the control channels in the control region according to the resource information, and takes the resources which are not occupied by the control channels in the control region as resources for transmitting data.

Optionally, the resource information includes one or more of the following items:

starting control unit numbers occupied by control channels of other terminals in the control area and aggregation level information of the other terminals, wherein the other terminals are one or more terminals except the UE;

ending control unit numbers occupied by control channels of other terminals in the control area and aggregation level information of the other terminals, wherein the other terminals are one or more terminals except the UE;

the control unit number occupied by the control channel of other terminals in the control area is numbered, wherein the other terminals are one or more terminals except the UE;

information of all control units occupied by a control channel in the control area;

the situation information of the controlled channel occupation of each control unit in the control area;

the last control unit number of the control unit occupied by the control channel in the control area;

the last control unit number of the control unit occupied by the control channel in the control area and the aggregation level information of other terminals, wherein the other terminals are one or more terminal numbers except the UE;

and the number of the control unit group to which the control unit occupied by the control channel in the control area belongs.

Optionally, the resource information is used to indicate resources for transmitting data in a control region of the time interval.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

Optionally, the method further includes:

and the UE determines data transmission resources according to the downlink control information, wherein the data transmission resources comprise resources used for transmitting data in the control region, or the data transmission resources comprise resources used for transmitting data in the control region and resources in the data region of the time interval.

Optionally, the downlink control information further includes scheduling information of a downlink data channel.

Optionally, if the resource information is an invalid value, it indicates that all resources in the control region cannot be used for transmitting data.

The embodiment of the invention also provides a transmission resource confirmation method, which comprises the following steps:

a base station generates downlink control information, wherein the downlink control information comprises resource information, and the resource information is used for representing the resource allocation condition in a control area of a time interval;

and the downlink control information is sent to the UE by the base station, so that the UE determines resources for transmitting data in the control area according to the resource information.

Optionally, the resource information is used to indicate resources occupied by a control channel in a control region of a time interval, so that the UE determines the resources occupied by the control channel in the control region according to the resource information, and uses the resources not occupied by the control channel in the control region as resources for transmitting data.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

Optionally, the data transmission resource determined by the UE according to the downlink control information includes a resource used for transmitting data in the control region, or the data transmission resource includes a resource used for transmitting data in the control region and a resource in the data region of the time interval.

An embodiment of the present invention further provides a UE, including:

a receiving module, configured to receive downlink control information sent by a base station, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation condition in a control region of a time interval;

a first determining module, configured to determine, according to the resource information, a resource used for transmitting data in the control region.

the first determining module is configured to determine, according to the resource information, a resource occupied by a control channel in the control region, and use a resource not occupied by the control channel in the control region as a resource for transmitting data.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

Optionally, the UE further includes:

a second determining module, configured to determine a data transmission resource according to the downlink control information, where the data transmission resource includes a resource used for transmitting data in the control region, or the data transmission resource includes a resource used for transmitting data in the control region and a resource in the data region of the time interval.

An embodiment of the present invention provides a base station, including:

a generating module, configured to generate downlink control information, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation condition in a control region of a time interval;

a sending module, configured to send the downlink control information to a UE, so that the UE determines, according to the resource information, resources used for transmitting data in the control region.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

An embodiment of the present invention further provides a transmission resource confirmation system, including:

a base station, configured to generate downlink control information, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation condition in a control region of a time interval;

the base station is further configured to send the downlink control information to the UE;

the UE is configured to receive the downlink control information sent by the base station;

the UE is further configured to determine resources for transmitting data in the control region according to the resource information.

The technical scheme of the invention at least has the following beneficial effects:

in the embodiment of the invention, UE receives downlink control information sent by a base station, wherein the downlink control information comprises resource information which is used for expressing the resource allocation condition in a control area of a time interval; and the UE determines resources for transmitting data in the control region according to the resource information. Therefore, the resources in the control area can be determined to be the resources for transmitting data, the problem of resource waste caused by the fact that the resources in the control area are not used can be avoided, and the utilization rate of the resources can be further improved.

Drawings

Fig. 1 is a schematic diagram of a network structure according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a transmission resource confirmation method according to an embodiment of the present invention;

FIG. 3a is a resource allocation diagram according to an embodiment of the present invention;

FIG. 3b is another resource allocation plan provided by the embodiment of the present invention;

FIG. 4a is another resource allocation plan provided by an embodiment of the present invention;

FIG. 4b is another resource allocation plan provided by the embodiment of the present invention;

FIG. 5 is another resource allocation plan provided by an embodiment of the present invention;

FIG. 6 is another resource allocation plan provided by an embodiment of the present invention;

FIG. 7a is another resource allocation plan provided by an embodiment of the present invention;

FIG. 7b is another resource allocation plan provided by the embodiment of the present invention;

FIG. 8a is another resource allocation plan provided by an embodiment of the present invention;

FIG. 8b is another resource allocation plan provided by an embodiment of the present invention;

FIG. 9a is a schematic resource allocation diagram according to an embodiment of the present invention;

FIG. 9b is another resource allocation plan provided by the embodiment of the present invention;

FIG. 10a is a schematic resource allocation diagram according to an embodiment of the present invention;

FIG. 10b is another resource allocation plan provided by an embodiment of the present invention;

FIG. 11 is another resource allocation plan provided by an embodiment of the present invention;

FIG. 12 is another resource allocation plan provided by an embodiment of the present invention;

fig. 13 is a flowchart illustrating another transmission resource confirmation method according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a UE according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of another UE according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of another UE according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of another transmission resource confirmation system 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.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure provided by an embodiment of the present invention, as shown in fig. 1, including one or more UEs 11 and a base station 12, where one UE11 is illustrated in the drawing by way of example. The UE11 may be a terminal side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that the specific type of the UE11 is not limited in the embodiments of the present invention. The UE11 may establish communication with the base station 12, where the network in the drawing may indicate that the UE11 establishes communication with the base station 12 wirelessly, and the base station 12 may be an evolved Node B (eNB), a 5G base station, or another base station, and it should be noted that a specific type of the base station 12 is not limited in the embodiment of the present invention.

Based on the network structure shown in fig. 1, an embodiment of the present invention provides a transmission resource confirmation method, as shown in fig. 2, including the following steps:

201. the method comprises the steps that UE receives downlink control information sent by a base station, wherein the downlink control information comprises resource information, and the resource information is used for indicating the resource allocation condition in a control area of a time interval (time interval);

202. and the UE determines the resources for transmitting data in the control region according to the resource information.

The time interval (time interval) may be a time interval corresponding to the downlink control information, for example: the UE may detect the downlink control channel at a specific resource location in the time interval to obtain the downlink control information. In addition, the time interval may include a control region, where the control region may be understood as a region where resources may be used for transmission of the control channel, that is, resources in the region may be used for transmission of the control channel, but in the embodiment of the present invention, resources that are not occupied by the control channel in the region are determined as resources that may be used for transmission of data, so that a problem of resource waste caused by unused resources in the control region may be avoided, so as to improve a utilization rate of the resources. In addition, the Time Interval may be a Transmission Time Interval (TTI) having a length of 1ms or less.

In addition, the resource information is used to indicate a resource allocation situation in a control region of a time interval, and may be understood as indicating a resource situation occupied by a control channel in the control region, or may be understood as indicating a resource allocation situation for transmitting data in the control region, that is, the resource allocation situation in the control region may be determined by the resource information.

The UE determines the resource for transmitting data in the control region according to the resource information, which may be understood as that the UE determines, according to the resource information, the resource that is not occupied by the control channel as the resource for transmitting data. For example: the control region includes 10 control units, wherein the control channel occupies 5 of the control units, and then it can be determined that the other 5 control units can be used as resources for transmitting data. In addition, the resources for transmitting data determined in step 202 above may be understood as the determined resources available for transmitting data, i.e. it means that the UE may transmit data using these resources. After determining the above resources for transmitting data, the UE may use them to transmit data, for example: all or part of the resources for transmitting data may be used for data transmission.

Through the steps, the resources in the control area can be determined to be the resources for transmitting data, so that the problem of resource waste caused by the fact that the resources in the control area are not used can be avoided, and the utilization rate of the resources is improved.

In this embodiment, it may be implemented that the resource information indicates the resource occupied by the control channel, and of course, the resource occupied by the control channel here may be a resource occupied by a control channel of another terminal, and the resource occupied by the control channel of the UE itself is known by the UE, for example: the UE may determine its own channel control resource (USS) through a Radio Network Temporary Identity (RNTI) or determine its own control channel resource at another agreed location, for example, blind test (CSS) from CCE0, so that the UE may determine that there is no resource occupied by the control channel in the control region. Or the resource information may indicate resources occupied by the control channel in the control region, where the occupied resources include resources occupied by other terminals and the UE itself. After receiving the resource information, the UE may determine the resource occupied by the control channel in the control region according to the resource information, and use the resource not occupied by the control channel in the control region as the resource for transmitting data.

Optionally, in this embodiment, the resource information includes one or more of the following items:

When the resource information includes the initial control unit number occupied by the control channel of the other terminal in the control region and the aggregation level information of the other terminal, the UE may determine the resource occupied by the control channel of the other terminal according to the initial control unit number and the aggregation level information, and determine the resource not occupied by the control channel in the control region by combining the resource occupied by the control channel of the UE, and use the resource as the resource for transmitting data.

For example: taking a control element as a Control Channel Element (CCE) for example, the number of CCEs available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, and N-1. Assume that two terminals, UE1 and UE2, are scheduled in the time interval (time interval), and that the aggregation level of UE1 is 1 and the aggregation level of UE2 is 2. The Downlink Control Information (DCI) of the scheduling UE1 includes a start number and an aggregation level of a CCE occupied by a Control Channel of the UE2, for example, the start number of the CCE occupied by a Physical Downlink Control Channel (PDCCH) of the UE2 is N-3 or N-4, and the aggregation level is 2. The DCI for scheduling UE2 in the base station includes the CCE start number occupied by the control channel of UE1 and an aggregation level, for example, the CCE start number occupied by the PDCCH of UE1 is 0 and the aggregation level is 1. The UE1 can determine the resources in the control region for transmitting data according to the resource allocation information in the DCI, the aggregation level of the control channel of the UE2 in the control region, and the starting CCE number of the occupied resources, and similarly, the UE2 can also determine the resources in the control region for transmitting data. For example: as shown in fig. 3a or fig. 3 b.

For example: taking a Control Unit (CU) as an example, assume that the number of CUs available for control channel transmission in a control region is N, and the logical numbers are 0,1,2, …, N-1. Assume that two terminals, UE1 and UE2, are scheduled in the time interval (time interval), and that the control channel of UE1 occupies 1 CU and the control channel of UE2 occupies 2 CUs. The base station includes the starting number and number of CUs occupied by the control channel of UE2 in the DCI for scheduling UE1, for example, the starting number of CUs occupied by the control channel of UE2 is N-3 or N-4, and the number of occupied CUs is 2. The DCI for scheduling UE2 of the base station includes the CU start number occupied by the control channel of UE1 and the number of occupied CUs, for example, the CU start number occupied by the PDCCH of UE1 is 0 and the number of occupied CUs is 1. For example, the PDCCH of UE1 occupies a CU with a starting number of 0 and an aggregation level of 1. The UE1 can determine the resources in the control region for transmitting data according to the resource allocation information in the DCI, the aggregation level of the control channel of the UE2 in the control region, and the starting CU number of the occupied resources, and similarly, the UE2 can also determine the resources in the control region for transmitting data. For example: as shown in fig. 4a or fig. 4 b.

When the resource information includes the ending control unit number occupied by the control channel of the other terminal in the control region and the aggregation level information of the other terminal, the UE may also determine, in combination with the resource occupied by its own control channel, the resource not occupied by the control channel in the control region, and use the resource as a resource for transmitting data.

When the resource information includes the control unit number occupied by the control channel of the other terminal in the control region, the UE may also determine, in combination with the resource occupied by its own control channel, the resource that is not occupied by the control channel in the control region, and use the resource as a resource for transmitting data.

For example: taking the control element as CCE for example, assume that the number of CCEs available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, N-1. Assume that there are control channels of two terminals in the time interval, the two terminals are UE1 and UE2, respectively, and the aggregation level of UE1 is 1 and the aggregation level of UE2 is 2. For example, assuming that N is 6, DCI for scheduling UE1 is included in the DCI

CCE numbers used for indicating that a control channel of UE2 occupies a control region, and DCI for scheduling UE2 includes

The CCE number used to indicate the control channel of the UE1 is occupied in the control region. Assume that the CCE occupied by the control channel of UE1 is CCE0 and the CCE occupied by the control channel of UE2 is CCE2 and CCE 3. Then the information bit indicating that the control channel of UE2 occupies the CCE in the DCI of UE1 is 00100, and the information bit indicating that the control channel of UE1 occupies the CCE in the DCI of UE2 is 00000. This can enable the UE1 and UE2 to obtain the resource location for data transmission in the control region through the information field and the resource allocation field in the DCI. For example: as shown in fig. 5.

For example: taking the control unit as CU for example, assume that the number of control units available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, N-1. Assume that there are control channels of two terminals in the time interval, the two terminals are UE1 and UE2, respectively, and the number of control units occupied by the control channel of UE1 is 1, and the number of control units occupied by the control channel of UE2 is 2. For example, assuming that N is 6, the downlink control information of the scheduling UE1 includes

The downlink control element number indicating the control channel of the UE2 to occupy in the control region, and the downlink control information of the scheduled UE2 includes

A control element number indicating that the control channel of the UE1 is occupied in the control region. Assume that the control unit occupied by the control channel of UE1 is CU0 and the control units occupied by the control channel of UE2 are CU2 and CU 3. The information bit indicating that the control channel of the UE2 occupies the CU in the downlink control information of the UE1 is 00100, and the information bit indicating that the control channel of the UE1 occupies the CU in the downlink control information of the UE2 is 00000. The UE1 and the UE2 obtain the resource location for data transmission in the control region through the information field and the resource allocation field in the downlink control information. For example: as shown in fig. 6.

Wherein, when the resource information includes information of all control units occupied by the control channel in the control region, the UE may directly determine the resources for data transmission in the control region. I.e. determining resources other than information of all control units occupied by the control channel as resources for data transmission within the control region. For example: the resource information includes the numbers or location information of all control units occupied by the control channel.

The information about the situation of the controlled channel occupancy of each control unit in the control area may be understood as information about whether each control unit is occupied by the controlled channel, that is, it may be determined which control units are occupied by the controlled channel and which are not occupied by the controlled channel through the information. For example: taking the control element as a CCE for example, it is assumed that the number of CCEs available for control channel transmission in the control region is 10, and the logical numbers are 0,1,2, …, and 9. Assume that there are control channels for two terminals, UE1 and UE2, respectively, in the time interval (time interval), and the aggregation level of UE1 is 1 and the aggregation level of UE2 is 2. The DCI1 and DCI2 of the scheduling UE1 and the scheduling UE2 each include indication information indicating that the control channel is transmitted in the control region, where 1 indicates that the corresponding CCE is used for control channel transmission and 0 indicates that the corresponding CCE is not occupied by the control channel. For example, 10 CCEs of the control region, where CCE0 is used for the control channel of UE1, and CCE2 and CCE3 are used for the control channel of UE2, then a location (bitmap) information field (1110000000) is respectively contained in DCI1 and DCI2 of scheduling UE1 and scheduling UE2, and UE1 and UE2 obtain resource locations available for data transmission in the control region through the bitmap information field and a resource allocation field in DCI. For example: as shown in fig. 3a and 3 b.

For example: taking the control unit as a CU for example, assume that the number of CUs available for control channel transmission in the control region is 10, and the logical numbers are 0,1,2, …, and 9. Assume that there are control channels for two terminals, UE1 and UE2, within the time interval (time interval). The base station includes indication information indicating that a control channel is to be transmitted in a control region in downlink control information 1 and downlink control information 2 of the scheduled UE1 and the scheduled UE2, where 1 indicates that the corresponding control unit is used for control channel transmission, and 0 indicates that the corresponding control unit is not occupied by the control channel. For example, 10 control units in the control region, where control unit 0 is used for the control channel of UE1, and control unit 2 and control unit 3 are used for the control channel of UE2, then downlink control information 1 and downlink control information 2 of scheduled UE1 and scheduled UE2 respectively include bitmap information fields (1110000000), and UE1 and UE2 obtain resource positions available for data transmission in the control region through the bitmap information fields and resource allocation fields in the downlink control information. For example: as shown in fig. 4a and 4 b.

When the channel information includes a last control unit number of a control unit occupied by a control channel in the control region, the UE may use resources after the last control unit number as resources for data transmission, for example: the base station can only continuously allocate the control channel resources in the control area during scheduling, so that the resources before the number can be determined as the resources occupied by the control channel, and the resources after the number can be determined as the resources used for data transmission. The last control unit number of the control unit occupied by the control channel in the control region may be understood as the last control unit number of the control unit occupied by the control channel of all terminals receiving the control signaling in the control region.

For example: taking the control element as CCE for example, assume that the number of CCEs available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, N-1. Assume that there are control channels of three terminals in the control area of the time interval, the three terminals are UE1, UE2, and UE3, respectively, and the aggregation level of UE1 is 1, the aggregation level of UE2 is 2, and the aggregation level of UE3 is 2. Taking UE2 as an example, assume that the control channels of three terminals occupy 5 CCEs, and the 5 CCEs can only be counted from the lowest number. Since the UE2 can obtain the starting CCE number of its own control channel and the aggregation level of the control channel through blind detection, the resource location for data transmission in the control region can be obtained through the last CCE number occupied in the control region of the time interval carried in the DCI. The schematic diagrams are shown in fig. 7a and 7 b. In the DCI for scheduling UE2, the total number of CCEs used for control channel transmission in the control region is notified, and as shown in fig. 7a and 7b, the number of CCEs is 6. The UE2 knows that the CCEs used by itself are CCE2 and CCE3 through blind detection, and then knows that none of CCE0, CCE1, CCE4 and CCE5 can be used for data transmission according to the mapping rule of the control channel and the total number of CCEs occupied by the control channel. However, since the aggregation level of the UE1 is 1, that is, as shown in fig. 7a and 7b, the CCE1 is available for data transmission, when the channel information includes the last control element number of the control element occupied by the control channel in the control region and aggregation level information of other terminals, the UE1, the UE2, and the UE3 may determine that the control channel of the UE1 only occupies the CCE0, thereby determining that the CCE1 is available for data transmission. That is, the aggregation level information of the UE1 may be carried in the DCI scheduling the UE2 and the UE3, so that the resource utilization rate may be further improved.

For example: taking the control unit as CU for example, assume that the number of CUs available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, N-1. Suppose that there are control channels of three terminals in the control area of the time interval, the three terminals are UE1, UE2, and UE3, respectively, and the number of control units occupied by the control channel of UE1 is 1, the number of control units occupied by the control channel of UE2 is 2, and the number of CUs occupied by the control channel of UE3 is 2. Taking UE2 as an example, assume that the control channels of three terminals occupy 5 CUs, and the 5 CUs can only be counted from the lowest number. Since the UE2 can obtain the starting control unit number of its own control channel and the number of control units occupied by the control channel through detection, the resource location for data transmission in the control region can be obtained through the last CU number occupied by the control channel in the control region of the TTI carried in the downlink control information. The schematic diagrams are shown in fig. 8a and 8 b. In the downlink control information of the scheduling UE2, the total number of control elements used for control channel transmission in the control region is reported, and as shown in fig. 8a and 8b, the number of control elements is 6. The UE2 knows that the CUs used by itself are CU2 and CU3 through detection, and then knows that none of CU0, CU1, CU4 and CU5 can be used for data transmission according to the mapping rule of the control channel and the total number of CUs occupied by the control channel. Further, the number of control units occupied by the control channel of the UE1 may be carried in the DCI of the scheduling UE2, so that it may be determined that the CU1 may be used for data transmission, and thus resource utilization may be further improved.

The UE may determine which control unit groups have resources occupied by the control channel, so that the control unit groups that do not include the resources occupied by the control channel may be determined as resources for user data transmission. Or a resource not occupied by the control channel among the resources occupied by the control channel may be determined as a resource for transmitting data. In addition, each group of control units may comprise one or more consecutive control units.

For example: taking the control element as an example of CCE, assume that the number of CCEs available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, N-1. Assume that there are control channels of two terminals in the control area of the time interval, the two terminals are UE1 and UE2, respectively, and the aggregation level of UE1 is 1 and the aggregation level of UE2 is 2. Taking UE2 as an example, assume that the control channels of two terminals occupy 2 CCE groups (CCE groups), and each CCE group contains 3 CCEs. The schematic diagrams are shown in fig. 9a and 9 b. In the DCI for scheduling the UE2, the CCE group number used for control channel transmission in the control region is notified, but of course, in some scenarios, the DCI may indicate the number of CCE groups for control channel transmission, for example: when only the control channel transmission of the UE2 is scheduled in the time interval, i.e., the number of CCE groups of the control channel transmission is 1, the UE2 may determine that other CCE groups are available for data transmission. The UE2 knows that the CCE used by the UE is CCE group1 through blind detection, and then knows that none of the CCE0, CCE1, CCE2 and CCE5 can be used for data transmission according to the mapping rule of the control channel and the CCE group number or number occupied by the control channel.

For example: taking the control unit as an example of a CU, assume that the number of CUs available for control channel transmission in the control region is N, and the logical numbers are 0,1,2, …, N-1. Suppose that there are control channels of two terminals in the control area of the time interval, the two terminals are UE1 and UE2, respectively, and the number of CUs occupied by the control channel of UE1 is 1, and the number of CUs occupied by the control channel of UE2 is 2. Taking UE2 as an example, assume that the control channels of two terminals occupy 2 CU groups, and each CU group contains 3 control units. The schematic diagrams are shown in fig. 10a and 10 b. In the downlink control information of the scheduling UE2, the control element group number or the number used for control channel transmission in the control region is notified. The UE2 knows that the control unit group used by the UE is the control unit group1 through detection, and then knows that none of the CUs 0, CU1, CU2, and CU5 can be used for data transmission according to the mapping rule of the control channel and the number or number of the control unit groups occupied by the control channel.

Optionally, the resource information is used to indicate resources for transmitting data in a control region of a time interval.

In this embodiment, it is possible to directly indicate the resource used for transmitting data by the resource information, so that the UE can directly determine the resource used for transmitting data by the resource information. In addition, the resource information may also indicate resources used by the UE for transmitting data in a control region of the time interval, that is, resources used by the base station to allocate users in the control region to transmit data to the UE. In addition, the resource information may indicate resources for transmitting data in the control region through a bitmap or indication information.

Optionally, in this embodiment, the resource information includes:

information of a control unit for transmitting data within the control region.

In this embodiment, the information of the control unit may be a number of each control unit. Or the control units for transmitting data are consecutive control units, the above information may be the numbers of the start unit and the end unit of the control units for transmitting data. Or the above information may also be the number of the starting control unit among the control units used for transmitting data, i.e. all control units from the beginning of the number to the end of the time interval are control units used for transmitting data.

For example: taking the control element as a CCE for example, it is assumed that the number of CCEs available for control channel transmission in the control region is N +2, and the logical numbers are 0,1,2, …, and N + 1. Assume that two terminals, UE1 and UE2, are scheduled within the time interval, and that the aggregation level of UE1 is 1 and the aggregation level of UE2 is 2. The DCI for scheduling UE1 on the base station side includes CCE information that can be used for data transmission of UE1 in the control region, and for example, CCE1 and CCE2 can be used for data transmission of UE 1. The DCI for scheduling UE2 on the base station side includes CCE information that can be used for data transmission of UE2 in the control region, and for example, CCE N +1 may be used for data transmission of UE 2. The UE knows the resources that can be used for data transmission in a time interval (short TTI, i.e., TTI with length less than 1 ms) according to the resource allocation information in the DCI and the control unit information that can be used by the UE in the control region. For example: as shown in fig. 11.

For example: taking the control element as a CCE for example, it is assumed that the number of CCEs available for control channel transmission in the control region is N +2, and the logical numbers are 0,1,2, …, and N + 1. Assume that two terminals, UE1 and UE2, are scheduled within the time interval, and that the aggregation level of UE1 is 1 and the aggregation level of UE2 is 2. The DCI for scheduling UE1 on the base station side includes CCE information that can be used for data transmission of UE1 in the control region, and for example, CCE1 and CCE2 can be used for data transmission of UE 1. The DCI for scheduling UE2 on the base station side includes CCE information that can be used for data transmission of UE2 in the control region, and for example, CCE N +1 may be used for data transmission of UE 2. The UE knows the resources that can be used for data transmission in a time interval (short TTI, i.e., TTI with length less than 1 ms) according to the resource allocation information in the DCI and the control unit information that can be used by the UE in the control region. For example: as shown in fig. 12.

Optionally, the method may further include:

In this embodiment, it may be implemented that the UE determines the data transmission resource according to the downlink control information, and the data transmission resource may include a resource used for transmitting data in the control region and/or a resource in the data region of the time interval. For example: such as the data transmission resources shown in fig. 3 to 11.

In this embodiment, it can be realized that the downlink control information includes scheduling information of a downlink data channel, so that the UE can determine resources for transmitting data by users in the control region and resources in the data region according to the downlink control information.

In this embodiment, the resource information may be an invalid value, for example: if the information field of the resource information is all 1, it indicates that all resources in the control region cannot be used for data transmission 1. For example: assuming that the DCI needs to carry resource information occupied by N other terminals in the control region of the time interval, when the number of actually scheduled terminals is greater than N, the base station sets the information region to an invalid value to indicate that all resources in the control region cannot be used for transmitting data.

It should be noted that, the various optional implementations provided in the embodiments of the present invention may be implemented in combination with each other or separately, and the embodiments of the present invention are not limited thereto.

Based on the network structure shown in fig. 1, an embodiment of the present invention provides a transmission resource confirmation method, as shown in fig. 13, including the following steps:

1301. a base station generates downlink control information, wherein the downlink control information comprises resource information, and the resource information is used for representing the resource allocation condition in a control area of a time interval;

1302. and the downlink control information is sent to the UE by the base station, so that the UE determines the resources for transmitting data in the control area according to the resource information.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

It should be noted that this embodiment is an embodiment of a base station side corresponding to the method shown in the embodiment shown in fig. 2, and specific implementation manners thereof may refer to relevant descriptions in the embodiment shown in fig. 2 and achieve the same beneficial effects, which are not described herein again.

Referring to fig. 14, which illustrates a UE structure, a UE1400 includes the following modules:

a receiving module 1401, configured to receive downlink control information sent by a base station, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation condition in a control area of a time interval;

a first determining module 1402, configured to determine, according to the resource information, resources used for transmitting data in the control area.

the first determining module 1402 is configured to determine, according to the resource information, a resource occupied by a control channel in the control region, and use a resource not occupied by the control channel in the control region as a resource for transmitting data.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

Optionally, as shown in fig. 15, the UE further includes:

a second determining module 1403, configured to determine a data transmission resource according to the downlink control information, where the data transmission resource includes a resource used for transmitting data in the control region, or the data transmission resource includes a resource used for transmitting data in the control region and a resource in the data region of the time interval.

It should be noted that, in this embodiment, the UE1400 may be a terminal in the embodiments shown in fig. 1 to 13, and any embodiment of the UE in the embodiments shown in fig. 1 to 13 may be implemented by the UE1400 in this embodiment to achieve the same beneficial effects, which is not described herein again.

Referring to fig. 16, which illustrates a base station architecture, a base station 1600 includes the following modules:

a generating module 1601, configured to generate downlink control information, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation situation in a control area of a time interval;

a sending module 1602, configured to send the downlink control information to a UE, so that the UE determines, according to the resource information, resources used for data transmission in the control region.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

It should be noted that the base station 1600 in this embodiment may be a network device in the embodiments shown in fig. 1 to 13, and any implementation of the base station in the embodiments shown in fig. 1 to 13 may be implemented by the base station 1600 in this embodiment to achieve the same beneficial effects, which is not described herein again.

Referring to fig. 17, there is shown a structure of a UE including: a processor 1700, a transceiver 1710, a memory 1720, a user interface 1730, and a bus interface, wherein:

a processor 1700 configured to read the program in the memory 1720 and execute the following processes:

receiving, by a transceiver 1710, downlink control information sent by a base station, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation situation in a control region of a time interval;

and determining resources for transmitting data in the control region according to the resource information.

Among other things, a transceiver 1710 for receiving and transmitting data under the control of the processor 1700.

In fig. 17, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1700 and various circuits of memory represented by memory 1720 linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1710 may be a number of elements including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 1730 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1720 may store data used by the processor 1700 in performing operations.

the determining the resources for transmitting data in the control region according to the resource information includes:

and determining resources occupied by the control channel in the control region according to the resource information, and taking the resources which are not occupied by the control channel in the control region as resources for transmitting data.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

Optionally, the processor 1700 is further configured to:

determining data transmission resources according to the downlink control information, wherein the data transmission resources include resources used for transmitting data in the control region, or the data transmission resources include resources used for transmitting data in the control region and resources in a data region of the time interval.

It should be noted that, in this embodiment, the UE may be the UE in the embodiment shown in fig. 1 to 13, and any implementation of the UE in the embodiment shown in fig. 1 to 13 may be implemented by the UE in this embodiment to achieve the same beneficial effects, which is not described herein again.

Referring to fig. 18, there is shown a structure of a base station including: a processor 1800, a transceiver 1810, a memory 1820, a user interface 1830, and a bus interface, wherein:

the processor 1800, which reads the program stored in the memory 1820, executes the following processes:

generating downlink control information, wherein the downlink control information comprises resource information, and the resource information is used for indicating the resource allocation condition in a control area of a time interval;

the downlink control information is sent to the UE through the transceiver 1810, so that the UE determines resources for transmitting data in the control region according to the resource information.

The transceiver 1810 is used for receiving and transmitting data under the control of the processor 1800.

In fig. 18, the bus architecture may include any number of interconnected buses and bridges, with various circuits including one or more processors, represented by the processor 1800, and memory, represented by the memory 1820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1810 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1830 may also be an interface capable of interfacing externally to a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1820 may store data used by the processor 1800 in performing operations.

Optionally, the resource information includes:

information of a control unit for transmitting data within the control region.

It should be noted that, in this embodiment, the base station may be the base station in the embodiment shown in fig. 1 to 11, and any implementation of the base station in the embodiment shown in fig. 1 to 11 may be implemented by the base station in this embodiment to achieve the same beneficial effects, and details are not repeated here.

Referring to fig. 19, a transmission resource confirmation system is shown, comprising:

a base station 1901, configured to generate downlink control information, where the downlink control information includes resource information, and the resource information is used to indicate a resource allocation condition in a control region of a time interval;

the base station 1901 is further configured to send the downlink control information to the UE 1902;

the UE1902 is configured to receive the downlink control information sent by the base station 1901;

the UE1902 is further configured to determine resources for transmitting data in the control region according to the resource information.

In this embodiment, the base station 1901 and the UE1902 may be the base station and the UE introduced in the embodiments shown in fig. 1 to 18, and their embodiments may refer to the embodiments shown in fig. 1 to 18, which can also achieve the same technical effect, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

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

1. A method for transmission resource confirmation, comprising:

a user terminal receives downlink control information sent by a base station, wherein the downlink control information comprises resource information, and the resource information is used for representing the resource allocation condition in a control area of a time interval;

the user terminal determines resources used for transmitting data in the control area according to the resource information;

the resource information is used for representing resources occupied by control channels in a control area of a time interval, and the resources occupied by the control channels are resources occupied by control channels of other terminals;

the determining, by the user terminal, resources for transmitting data in the control region according to the resource information includes:

the user terminal determines resources occupied by the control channel in the control region according to the resource information, and takes the resources not occupied by the control channel in the control region as resources for transmitting data, wherein the resources for transmitting data are resources for transmitting data between the user terminal and the base station;

wherein the resource information includes one or more of:

starting control unit numbers occupied by control channels of other terminals in the control area and aggregation level information of the other terminals, wherein the other terminals are one or more terminals except the user terminal;

ending control unit numbers occupied by control channels of other terminals in the control area and aggregation level information of the other terminals, wherein the other terminals are one or more terminals except the user terminal;

the last control unit number of the control unit occupied by the control channel in the control area and the aggregation level information of other terminals, wherein the other terminals are one or more terminal numbers except the user terminal.

2. The method of claim 1, wherein the resource information includes one or more of:

the control unit number occupied by the control channel of other terminals in the control area is numbered, wherein the other terminals are one or more terminals except the user terminal;

3. The method of claim 1, wherein the resource information is used to indicate resources for transmitting data within a control region of a time interval.

4. The method of claim 3, wherein the resource information comprises:

information of a control unit for transmitting data within the control region.

5. The method of any one of claims 1-4, further comprising:

and the user terminal determines data transmission resources according to the downlink control information, wherein the data transmission resources comprise resources used for transmitting data in the control region, or the data transmission resources comprise resources used for transmitting data in the control region and resources in the data region of the time interval.

6. The method according to any of claims 1-4, wherein the downlink control information further comprises scheduling information for a downlink data channel.

7. The method according to any of claims 1-4, wherein if the resource information is invalid, it indicates that all resources in the control region cannot be used for transmitting data.

8. A method for transmission resource confirmation, comprising:

the base station sends the downlink control information to the user terminal so that the user terminal determines resources for transmitting data in the control area according to the resource information;

the resource information is used for representing resources occupied by control channels in a control region of a time interval, so that the user terminal determines the resources occupied by the control channels in the control region according to the resource information, and takes the resources not occupied by the control channels in the control region as resources for transmitting data, wherein the resources for transmitting data are resources for transmitting data between the user terminal and the base station, and the resources occupied by the control channels represented by the resource information are resources occupied by control channels of other terminals;

wherein the resource information includes one or more of:

9. The method of claim 8, wherein the resource information includes one or more of:

10. The method of claim 8, wherein the resource information is used to indicate resources for transmitting data within a control region of a time interval.

11. The method of claim 10, wherein the resource information comprises:

information of a control unit for transmitting data within the control region.

12. The method according to any of claims 8-11, wherein the data transmission resources determined by the ue according to the downlink control information include resources in the control region for transmitting data, or the data transmission resources include resources in the control region for transmitting data and resources in the data region of the time interval.

13. The method according to any of claims 8-11, wherein the downlink control information further comprises scheduling information of a downlink data channel.

14. The method according to any of claims 8-11, wherein if the resource information is invalid, it indicates that all resources in the control region cannot be used for transmitting data.

15. A user terminal, comprising:

a first determining module, configured to determine, according to the resource information, a resource used for transmitting data in the control region;

the first determining module is configured to determine, according to the resource information, a resource occupied by a control channel in the control region, and use a resource not occupied by the control channel in the control region as a resource for transmitting data, where the resource for transmitting data is a resource for transmitting data between the user terminal and the base station;

wherein the resource information includes one or more of:

16. The user terminal of claim 15, wherein the resource information includes one or more of:

17. The user terminal of claim 15, wherein the resource information is used to indicate resources for transmitting data within a control region of a time interval.

18. The user terminal of claim 15, wherein the resource information comprises:

information of a control unit for transmitting data within the control region.

19. The user terminal according to any of claims 15-18, wherein the user terminal further comprises:

20. The user terminal according to any of claims 15-18, wherein the downlink control information further comprises scheduling information of a downlink data channel.

21. The user terminal according to any of claims 15-18, wherein if the resource information is invalid, it indicates that all resources in the control region cannot be used for transmitting data.

22. A base station, comprising:

a sending module, configured to send the downlink control information to a user terminal, so that the user terminal determines, according to the resource information, a resource used for transmitting data in the control region;

wherein the resource information includes one or more of:

23. The base station of claim 22, wherein the resource information includes one or more of:

24. The base station of claim 22, wherein the resource information is used to indicate resources within a control region of a time interval for transmitting data.

25. The base station of claim 24, wherein the resource information comprises:

information of a control unit for transmitting data within the control region.

26. The base station according to any of claims 22-25, wherein the data transmission resources determined by the ue according to the downlink control information include resources in the control region for transmitting data, or the data transmission resources include resources in the control region for transmitting data and resources in the data region of the time interval.

27. The base station of any of claims 22-25, wherein the downlink control information further comprises scheduling information for a downlink data channel.

28. The base station according to any of claims 22-25, wherein if the resource information is invalid, it indicates that all resources in the control region cannot be used for transmitting data.

29. A transmission resource confirmation system, comprising:

the base station is also used for sending the downlink control information to the user terminal;

the user terminal is configured to receive the downlink control information sent by the base station;

the user terminal is further configured to determine resources for transmitting data in the control region according to the resource information;

wherein the resource information includes one or more of: