WO2019024109A1

WO2019024109A1 - Method and device for resource sharing

Info

Publication number: WO2019024109A1
Application number: PCT/CN2017/096083
Authority: WO
Inventors: Zhaobang MIAO; Gang Wang
Original assignee: Nec Corporation
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2019-02-07

Abstract

Embodiments of the disclosure provide a method and device for resources sharing between the control resource region and the data resource region. The start time position of the data resource region can be determined dynamically. The method of the present disclosure improves the utilization efficiencies of the resources.

Description

METHOD AND DEVICE FOR RESOURCE SHARING

FIELD OF THE INVENTION

Embodiments of the present disclosure generally relate to communication techniques. More particularly， embodiments of the present disclosure relate to a method and device for resource sharing.

BACKGROUND OF THE INVENTION

Conventionally， resource allocation (RA) types define schemes to be employed in resource allocation. For example， Long Term Evolution (LTE) introduces

Resource Allocation Types

0， 1， and 2， and details of them may be found in TS 36.213 7.1.6 resource allocation. In practice， a resource allocation field in Downlink Control Information (DCI) indicates the resource allocation type， and thus a terminal device may know the time-frequency resource allocated by a network device based on the resource allocation field. In the conventional solution， the unused resource in control region may be reused by Physical Downlink Shared Channel (PDSCH) in order to increase resource utilization efficiency.

In RAN1#87， it is agreed that the newly-developed mobile standards， for example， a New Radio (NR) system should support dynamic reuse of at least part of resources in the control resource sets for data transmissions.

Accordingly， there is a need to develop a scheme for indicating the time-domain resource allocated to a terminal device， especially for resource sharing purpose..

SUMMARY OF THE INVENTION

The present disclosure proposes a solution for sharing resources between data region and control region.

According to a first aspect of embodiments of the present disclosure， embodiments of the present disclosure provide a method implemented at a network device. The method may include： obtaining a configuration of a control resource region associated with a data resource region， the control resource region being allocated for control information transmission， and the data resource region being allocated for data transmission； determining a start time position of the data resource region based on the configuration of the control resource region； and transmitting information about the start time position to a terminal device allocated with the data resource region.

According to a second aspect of embodiments of the present disclosure， embodiments of the present disclosure provide a method implemented at a terminal device. The method may include： receiving information about a start time position of a data resource region allocated to the terminal device， the start time position being determined based on a configuration of a control resource region associated with the data resource region， the control resource region being allocated to a terminal device for control information transmission； and performing data transmission based on the received information.

According to a third aspect of embodiments of the present disclosure， embodiments of the present disclosure provide a network device. The network device includes： at least one processor； and a memory coupled to the at least one processor， the memory storing instructions therein， the instructions， when executed by the at least one processor， causing the network device to perform acts including： obtaining a configuration of a control resource region associated with a data resource region， the control resource region being allocated for control information transmission， and the data resource region being allocated for data transmission； determining a start time position of the data resource region based on the configuration of the control resource region； and transmitting information about the start time position to a terminal device allocated with the data resource region.

According to a fourth aspect of embodiments of the present disclosure， embodiments of the present disclosure provide a terminal device. The terminal device includes： at least one processor； and a memory coupled to the at least one processor， the memory storing instructions therein， the instructions， when executed by the at least one processor， causing the network device to perform acts including： receiving information about a start time position of a data resource region allocated to the terminal device， the start time position being determined based on a configuration of a control resource region associated with the data resource region， the control resource region being allocated to a terminal device for control information transmission； and performing data transmission based on the received information.

According to a fifth aspect of embodiments of the present disclosure， embodiments of the present disclosure provide a computer readable medium storing instructions thereon， the instructions， when executed by at least one processing unit of a machine， causing the machine to perform： obtaining a configuration of a control resource region associated with a data resource region， the control resource region being allocated for control information transmission， and the data resource region being allocated for data transmission； determining a start time position of the data resource region based on the configuration of the control resource region； and transmitting information about the start time position to a terminal device allocated with the data resource region.

According to a sixth aspect of embodiments of the present disclosure， embodiments of the present disclosure provide a computer readable medium storing instructions thereon， the instructions， when executed by at least one processing unit of a machine， causing the machine to perform： receiving information about a start time position of a data resource region allocated to the terminal device， the start time position being determined based on a configuration of a control resource region associated with the data resource region， the control resource region being allocated to a terminal device for control information transmission； and performing data transmission based on the received information.

Other features and advantages of the embodiments of the present disclosure will also be apparent from the following description of specific embodiments when read in conjunction with the accompanying drawings， which illustrate， by way of example， the principles of embodiments of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the disclosure are presented in the sense of examples and their advantages are explained in greater detail below， with reference to the accompanying drawings， where

Fig. 1 illustrates a schematic diagram of a communication system 100 according to embodiments of the present disclosure；

Figs. 2A and 2B illustrate diagrams of resources between PDCCH and PDSCH；

Figs. 3-5 illustrate diagrams of conventional resource allocation types；

Fig. 6 illustrates a flow chart of a method for resource sharing according to embodiments of the present disclosure；

Figs. 7A and 7B illustrate block diagrams of resource sharing according to embodiments of the present disclosure；

Figs. 8A and 8B illustrate block diagrams of resource sharing according to embodiments of the present disclosure；

Fig. 9 illustrates a block diagram of resource sharing according to embodiments of the present disclosure；

Figs. 10A and 10B illustrate block diagrams of resource sharing according to embodiments of the present disclosure；

Figs. 11A and 11b illustrate block diagrams of resource sharing according to embodiments of the present disclosure；

Fig. 12 illustrates a block diagram of resource sharing according to embodiments of the present disclosure；

Fig. 13 illustrates block diagrams of resource sharing according to embodiments of the present disclosure；

Fig. 14 illustrates block diagrams of resource sharing according to embodiments of the present disclosure；

Fig. 15 illustrates a flow chart of a method for resource sharing according to embodiments of the present disclosure；

Fig. 16 illustrates a schematic diagram of a device according to an embodiment of the present disclosure；

Fig. 17 illustrates a schematic diagram of an apparatus according to an embodiment of the present disclosure； and

Fig. 18 illustrates a schematic diagram of an apparatus according to an embodiment of the present disclosure.

Throughout the figures， same or similar reference numbers indicate same or similar elements.

DETAILED DESCRIPTION OF EMBODIMENTS

The subject matter described herein will now be discussed with reference to several example embodiments. It should be understood these embodiments are discussed only for the purpose of enabling those skilled persons in the art to better understand and thus implement the subject matter described herein， rather than suggesting any limitations on the scope of the subject matter.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein， the singular forms “a， ” “an” and “the” are intended to include the plural forms as well， unless the context clearly indicates otherwise. It will be further understood that the terms “comprises， ” “comprising， ” “includes” and/or “including， ” when used herein， specify the presence of stated features， integers， steps， operations， elements and/or components， but do not preclude the presence or addition of one or more other features， integers， steps， operations， elements， components and/or groups thereof.

It should also be noted that in some alternative implementations， the functions/acts noted may occur out of the order noted in the figures. For example， two functions or acts shown in succession may in fact be executed concurrently or may sometimes be executed in the reverse order， depending upon the functionality/acts involved.

As used herein， the term “communication network” refers to a network following any suitable communication standards， such as Long Term Evolution (LTE) ， LTE-Advanced (LTE-A) ， Wideband Code Division Multiple Access (WCDMA) ， High-Speed Packet Access (HSPA) ， and so on. Furthermore， the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols， including， but not limited to， the first generation (1G) ， the second generation (2G) ， 2.5G， 2.75G， the third generation (3G) ， the fourth generation (4G) ， 4.5G， the future fifth generation (5G) communication protocols， and/or any other protocols either currently known or to be developed in the future.

As used herein， the term “control resource region” includes at least one resource element for transmitting control information. For example， in NR， the control resource region may refer to at least a part of a Control Resource Set (CORESET) . The term “data resource region” includes at least one resource element for transmitting data. For example， in NR， the data resource region may refer to PDSCH.

Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications， there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.

The term “network device” includes， but not limited to， a base station (BS) ， a gateway， a management entity， and other suitable device in a communication system. The term “base station” or “BS” represents a node B (NodeB or NB) ， an evolved NodeB (eNodeB or eNB) ， a Remote Radio Unit (RRU) ， a radio header (RH) ， a remote radio head (RRH) ， a relay， a low power node such as a femto， a pico， and so forth.

The term “terminal device” includes， but not limited to， “user equipment (UE) ” and other suitable end device capable of communicating with the network device. By way of example， the “terminal device” may refer to a terminal， a Mobile Terminal (MT) ， a Subscriber Station (SS) ， a Portable Subscriber Station， a Mobile Station (MS) ， or an Access Terminal (AT) .

Now some example embodiments of the present disclosure will be described below with reference to the figures. Reference is first made to FIG. 1， which illustrates schematic diagram of a communication system 100 according to embodiments of the present disclosure.

In the communication system 100， there illustrate a network device (for example， an eNB) 110 that communicates with a terminal device (for example， a UE) 120. The network device 110 allocates one or more resource blocks to the terminal device 120， and transmits information about the allocated resource blocks to the terminal device 120. The terminal device 120 receives information about the allocated resource blocks from the network device 110， and performs uplink transmission to the network device 110 based on the received information.

Now some exemplary embodiments of the present disclosure will be described below with reference to the following figures. Fig. 2A illustrates a pattern of separated source between PDCCH 210 and PDSCH 215 in LTE. As shown in Fig. 2A， PDCCH 210 has fixed time duration. In such a situation， the start time point for PDSCH 215 is also fixed. Fig. 2B illustrates a pattern of resource sharing between CORESET 220 and PDSCH 225 in NR. As shown in Fig. 2B， different CORESET 220 has different time duration. For example， NR may support 1-2 and 1-3OFDM symbols as time duration for CORESET 220. That is to say， start time position of different PDSCH 225 may vary based on different CORESET 220. It is agreed in RAN1 Ad-hoc#1 that the starting position of downlink data in a slot can be explicitly and dynamically indicated to a terminal device 120. Therefore， there is a need a method to indicate the time-domain resource allocated to a terminal device 120 for resource sharing purpose. As discussed above， LTE introduces

Resource Allocation Types

0， 1， and 2. Figs 3， 4 aud 5 illustrate diagrams of the

Resource Allocation Types

0， 1， and 2， respectively. As shown in these three figures， all the three types employ a resource block (also referred to as “RB” ) as the basic unit for allocating the time-frequency resource.

In order to solve the above and other potential problems， embodiments of the present disclosure provide solutions for resources sharing between a control resource region and a data resource region.

Fig. 6 illustrates a flow chart of a method 600 for resource sharing between a control resource region and a data resource region according to embodiments of the present disclosure. The method 600 may be implemented at the network device 110， for example an eNB or other suitable device.

At block 605， the network device 110 may obtain a configuration of a control resource region associated with a data resource region. The control resource region may be allocated for control information transmission and the data resource region may be allocated for data transmission. In an example embodiment， the configuration of the control resource region includes an end time position of the control resource region. In another example embodiment， the configuration of the control resource region includes a start time position of the control resource region. In a further example embodiment， the configuration of the control resource region includes an end frequency position of the control resource region. In a yet example embodiment， the configuration of the control resource region includes a start frequency position of the control resource region. Alternately or additionally， the configuration of the control resource region includes an indication indicating whether the control resource region exists. Alternately or additionally， the configuration of the control resource region includes occupation information indicating whether the control resource region is occupied. In some example embodiments， obtaining the configuration of the control resource region includes obtaining a mode of overlapping of the control resource region and the data resource region. Alternatively or additionally， the configuration of the control resource region includes a degree of overlapping with the data resource region.

At block 610， the network device 110 may determine a start time position of the data resource region based on the configuration of the control resource region.

In an example embodiment where the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， the network device 110 may determine a mode of overlapping of the control resource region and the data resource region. In some embodiments， the network device 110 may determine a start time position of each of the plurality of resource blocks based on a degree of overlapping with the control resource region in response to the mode indicating that the control resource region and the data resource region are partial overlapped. In some embodiments， the network device 110 may determine the start time position of the data resource region as a start time position of a scheduling unit in response to the mode indicating that the control resource region and the data resource region are non-overlapped. In some embodiments， the network device 110 may determine the start time position of the data resource region based on occupation information of the control resource region in response to the mode indicating that the control resource region and the data resource region are full-overlapped.

In a further example where the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， the network device 110 may determine a mode of overlapping of the control resource region and the data resource region. In some embodiments， the network device 110 may determine a start time position of each of the plurality of resource blocks as an end time position of the control resource region in response to the mode indicating that the control resource region and the data resource region are partial overlapped. In some embodiments， the network device 110 may determine the start time position of the data resource region as a start time position of a scheduling unit in response to the mode indicating that the control resource region and the data resource region are non-overlapped. In some embodiments， the network device 110 may determine the start time position of the data resource region based on occupation information of the control resource region in response to the mode indicating that the control resource region and the data resource region are full-overlapped.

In another example embodiment where the data resource region is represented by a resource block in frequency domain， the network device 110 may determine the start time position of the data resource region based on occupation information. Alternatively or additionally， the network device 110 may determine the start time position of the data resource region based on an end time position of the control resource region.

At block 615， the network device 110 may transmit information about the start time position to a terminal device 120 allocated with the data resource region. In an example embodiment， the network device 110 may generate a bitmap. In some embodiment， the bitmap may indicate the start time position of the data resource region. Alternatively or additionally， the bitmap may indicate a mode of overlapping of the control resource region and the data resource region. In an example embodiment， the network device 110 may determine the number of bits to indicate the start time position of the data resource region based on the number of symbols used by the control resource region.

In some embodiments， the network device 110 may transmit the bitmap to the terminal device 120. In some embodiments， the network device 110 may include the bitmap in a high level signaling and transmit the high level signaling to the terminal device 120. Alternatively or additionally， the network device 110 may include the bitmap in downlink control information and transmit the downlink control information to the terminal device 120.

According to embodiments of the present disclosure， different start symbol can be assigned to different data resource regions. Further， embodiments of the present disclosure may support flexible resource sharing in both frequency domain and time domain between the control resource region and the data resource region.

Figs. 7A-13 illustrate some schematic diagrams of resource sharing according to some embodiments of the present disclosure. By way of example， as shown in Figs. 7A and 7B where the Resource Allocation Type is 0 and the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， the control resource region 710 and the data resource region 715 may be partial overlapped in frequency domain. Table 1 below shows a bitmap of information about the start time position.

Table 1

Pattern Field

Start Symbol Field

In this embodiment， the pattern field may indicate the mode of overlapping. For example， “1” bit in the pattern field may indicate that the control resource region 710 and the data resource region 715 may be partial overlapped. In some embodiments， by way of example， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In some embodiments， the length of the start symbol field may be k*2 bits where k is the number of RBs in frequency domain in data resource region 715. In an example embodiment where the maximum duration of control resource region 710 is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol. In an example embodiment where the maximum duration of control resource region 710 is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol.

In some embodiments， by way of example， as shown in Fig. 8A where the Resource Allocation Type is 0 and the data resource region is represented by a resource block group indicating a plurality of resource blocks in frequency domain， the control resource region 810 and the data resource region 815 may be non-overlapped in frequency domain. The bitmap of information about the start time position may be the same as that shown in table 1.

In this embodiment， the pattern field may indicate the mode of overlapping. For example， “0” bit in the pattern field may indicate that the control resource region 810 and the data resource region 815 may be non-overlapped in frequency domain. In some embodiments， by way of example， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In some embodiments， the length of the start symbol field may be k*2 bits where k is the number of RBs in frequency domain in data resource region 815. In an example embodiment where the maximum duration of control resource region 810 is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol. In an example embodiment where the maximum duration of control resource region 810 is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol.

In some embodiments， by way of example， as shown in Fig. 8B where the Resource Allocation Type is 0 and the data resource region is represented by a resource block group indicating a plurality of resource blocks in frequency domain， the control resource region 820 and the data resource region 825 may be full-overlapped in frequency domain. The bitmap of information about the start time position may be the same as that shown in table 1.

In this embodiment， the pattern field may indicate the mode of overlapping. For example， “0” bit in the pattern field may indicate that the control resource region 820 and the data resource region 825 may be full-overlapped. In some embodiments， by way of example， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In some embodiments， the length of the start symbol field may be k*2 bits where k is the number of RBs in frequency domain in data resource region 825. In an example embodiment where the maximum duration of control resource region 820 is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol. In an example embodiment where the maximum duration of control resource region 820 is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol.

Fig. 9 illustrates a block diagram of resources sharing according to some embodiments of the present disclosure. As shown in Fig. 9 where the RA type is 0 and the number of RBs in a RB group is 2， the duration of the control resource region is 3 symbols. By way of example， “1” in pattern filed may indicate that the control resource region and the data resource region are partial overlapped in frequency domain and “0” in pattern filed may indicate that the control resource region and the data resource region are non-overlapped in frequency domain or full-overlapped in frequency domain.

As shown in Fig. 9， by way of example， the control resource region 910 and the data resource region 915-1 and 915-2 (collectively refers to as “data resource region 915” ) are partial overlapped in frequency domain. Therefore， the pattern filed is “1” . The data resource region 915-1 starts at the first symbol. Therefore， the start symbol field of the data resource region 915-1 is “00. ” The data resource region 915-2 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 915-2 is “11. ” The bitmap for the control resource region 910 and the data resource region 915 is “10011. ”

As shown in Fig. 9， by way of example， the control resource region 920 and the data resource region 925-1 and 925-2 (collectively refers to as “data resource region 925” ) are full-overlapped in frequency domain. Therefore， the pattern filed is “0. ” The data resource region 925 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 925 is “11. ” The bitmap for the control resource region 920 and the data resource region 925 is “011. ”

As shown in Fig. 9， by way of example， the control resource region 930 and the data resource region 935-1 and 935-2 (collectively refers to as “data resource region 935” ) are full-overlapped in frequency domain. Therefore， the pattern filed is “0. ” The data resource region 935 starts at the second symbol. Therefore， the start symbol field of the data resource region 935 is “01. ” The bitmap for the control resource region 930 and the data resource region 935 is “001. ”

As shown in Fig. 9， by way of example， the control resource region 940 and the data resource region 945-1 and 945-2 (collectively refers to as “data resource region 945” ) are non-overlapped in frequency domain. Therefore， the pattern filed is “0. ” The data resource region 945 starts at the first symbol. Therefore， the start symbol field of the data resource region 945 is “00. ” The bitmap for the control resource region 940 and the data resource region 945 is “000. ”

As shown in Fig. 9， by way of example， the control resource region 950 and the data resource region 955-1 and 955-2 (collectively refers to as “data resource region 955” ) are non-overlapped in frequency domain. Therefore， the pattern filed is “0. ” The data resource region 955 starts at the first symbol. Therefore， the start symbol field of the data resource region 955 is “00. ” The bitmap for the control resource region 950 and the data resource region 955 is “000. ”

As shown in Fig. 9， by way of example， the control resource region 960 and the data resource region 965-1 and 965-2 (collectively refers to as “data resource region 965” ) are full-overlapped in frequency domain. Therefore， the pattern filed is “0. ” The data resource region 965 starts at the third symbol. Therefore， the start symbol field of the data resource region 965 is “10. ” The bitmap for the control resource region 960 and the data resource region 965 is “010. ”

In the embodiment shown in Fig. 9， the bitmap for all control resource region and the data resource region is “10011 011 001 000 000 010. ” In some embodiments， when the terminal device 120 receives “1” ， the terminal device 120 may determine that the following 2*2 bits indicates the start symbols of each RB. In some embodiments， when the terminal device 120 receives “0” ， the terminal device 120 may determine that the following 1*2 bits indicates the start symbol of all RBs. In the embodiment shown in Fig. 9，the frequency-domain bitmap is “1001010101010. ”

Figs 10A-10B illustrate some block diagrams of resource sharing according to some embodiments of the present disclosure. By way of example， as shown in Figs. 10A and 10B where the Resource Allocation Type is 0 and the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， the control resource region 1010 and the data resource region 1015 may be partial overlapped in frequency domain. Table 2 below shows a time-domain bitmap of information about the start time position.

Table 2

Start Svmbol Field

In this embodiment， by way of example， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In some embodiments， the length of the start symbol field may be k*2 bits where k is the number of RBs in frequency domain in data resource region 1015. In an example embodiment where the maximum duration of control resource region 1010 is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol. In an example embodiment where the maximum duration of control resource region 1010 is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol.

In some embodiments， by way of example， as shown in Fig. 11A where the Resource Allocation Type is 0 and the data resource region is represented by a resource block group indicating a plurality of resource blocks in frequency domain， the control resource region 1110 and the data resource region 1115 may be non-overlapped in frequency domain. The bitmap of information about the start time position may be the same as that shown in table 2.

In this embodiment， by way of example， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In some embodiments， the length of the start symbol field may be k*2 bits where k is the number of RBs in frequency domain in data resource region 1115. In an example embodiment where the maximum duration of control resource region 810 is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol. In an example embodiment where the maximum duration of control resource region 1110 is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol.

In some embodiments， by way of example， as shown in Fig. 11B where the Resource Allocation Type is 0 and the data resource region is represented by a resource block group indicating a plurality of resource blocks in frequency domain， the control resource region 1120 and the data resource region 1125 may be full-overlapped in frequency domain. The bitmap of information about the start time position may be the same as that shown in table 2.

In this embodiment， by way of example， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In some embodiments， the length of the start symbol field may be k*2 bits where k is the number of RBs in frequency domain in data resource region 1125. In an example embodiment where the maximum duration of control resource region 1120 is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol. In an example embodiment where the maximum duration of control resource region 1120 is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the duration of OFDM symbol may be known， therefore the start time position of the resource block may be known based on the duration of OFDM symbol and the start symbol.

Fig. 12 illustrates a block diagram of resources sharing according to some embodiments of the present disclosure. As shown in Fig. 12 where the RA type is 0 and the number of RBs in a RB group is 2， the duration of the control resource region is 3 symbols. The bitmap may not include the mode of overlapping of the control resource region and the data resource region.

As shown in Fig. 12， by way of example， the control resource region 1210 and the data resource region 1215-1 and 1215-2 (collectively refers to as “data resource region 1215” ) are partial overlapped in frequency domain. The data resource region 1215 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 1215 is “11. ” The bitmap for the control resource region 1210 and the data resource region 1215 is “11. ”

As shown in Fig. 12， by way of example， the control resource region 1220 and the data resource region 1225-1 and 1225-2 (collectively refers to as “data resource region 1225” ) are full-overlapped in frequency domain. The data resource region 1225 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 1225 is “11. ” The bitmap for the control resource region 1220 and the data resource region 1225 is “11. ”

As shown in Fig. 12， by way of example， the control resource region 1230 and the data resource region 1235-1 and 1235-2 (collectively refers to as “data resource region 1235” ) are full-overlapped in frequency domain. The data resource region 1235 starts at the second symbol. Therefore， the start symbol field of the data resource region 1235 is “01. ” The bitmap for the control resource region 1230 and the data resource region 1235 is “01. ”

As shown in Fig. 12， by way of example， the control resource region 1240 and the data resource region 1245-1 and 1245-2 (collectively refers to as “data resource region 1245” ) are non-overlapped in frequency domain. The data resource region 1245 starts at the first symbol. Therefore， the start symbol field of the data resource region 1245 is “00. ” The bitmap for the control resource region 1240 and the data resource region 1245 is “00. ”

As shown in Fig. 12， by way of example， the control resource region 1250 and the data resource region 1255-1 and 1255-2 (collectively refers to as “data resource region 1255” ) are non-overlapped in frequency domain. The data resource region 1255 starts at the first symbol. Therefore， the start symbol field of the data resource region 1255 is “00. ” The bitmap for the control resource region 1250 and the data resource region 1255 is “00. ”

As shown in Fig. 12， by way of example， the control resource region 1260 and the data resource region 1265-1 and 1265-2 (collectively refers to as “data resource region 1265” ) are full-overlapped in frequency domain. The data resource region 1265 starts at the third symbol. Therefore， the start symbol field of the data resource region 1265 is “10. ” The bitmap for the control resource region 1260 and the data resource region 1265 is “10. ”

In the embodiment shown in Fig. 12， the bitmap for all control resource region and the data resource region is “11 11 01 00 00 10. ” In the embodiment shown in Fig. 12， the frequency-domain bitmap is “1001010101010. ”

Fig. 13 illustrates a block diagram of resources sharing according to some embodiments of the present disclosure. As shown in Fig. 13 where the RA type is 1 and the number of RBs in a RB group is 1， the duration of the control resource region is 3 symbols. As shown in Fig. 13， the bitmap may not include the mode of overlapping of the control resource region and the data resource region. It is to be understood that the bitmap may include the mode of overlapping， for example， pattern field. The bitmap of information about the start time position may be the same as table 1. Alternatively， the bitmap of information about the start time position may be the sane as table 2.

By way of example， as shown in Fig. 13 where the Resource Allocation Type is 1 and the data resource region is represented by a resource block in frequency domain， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In an example embodiment where the maximum duration of control resource region is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. In an example embodiment where the maximum duration of control resource region is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol.

As shown in Fig. 13， by way of example， the control resource region 1310 and the data resource region 1315 are non-overlapped in frequency domain. The data resource region 1315 starts at the first symbol. The bitmap for the control resource region 1310 and the data resource region 1315 is “00. ”

As shown in Fig. 13， by way of example， the control resource region 1310 and the data resource region 1325 are full-overlapped in frequency domain. The data resource region 1325 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 1325 is “11. ” The bitmap for the control resource region 1310 and the data resource region 1325 is “11. ”

As shown in Fig. 13， by way of example， the control resource region 1320 and the data resource region 1335 are non-overlapped in frequency domain. The data resource region 1335 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 1335 is “11. ” The bitmap for the control resource region 1320 and the data resource region 1335 is “11. ”

As shown in Fig. 13， by way of example， the control resource region 1320 and the data resource region 1345 are full-overlapped in frequency domain. The data resource region 1345 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 1345 is “11. ” The bitmap for the control resource region 1320 and the data resource region 1345 is “11. ”

As shown in Fig. 13， by way of example， the control resource region 1330 and the data resource region 1355 are non-overlapped in frequency domain. The data resource region 1355 starts at the first symbol. Therefore， the start symbol field of the data resource region 1355 is “00. ” The bitmap for the control resource region 1330 and the data resource region 1355 is “00. ”

As shown in Fig. 13， by way of example， the control resource region 1340 and the data resource region 1365 are full-overlapped in frequency domain. The data resource region 1365 starts at the fourth symbol. Therefore， the start symbol field of the data resource region 1365 is “11. ” The bitmap for the control resource region 1340 and the data resource region 165 is “11 . ”

In the embodiment shown in Fig. 13， the bitmap for all control resource region and the data resource region is “00 11 11 11 00 11. ” In the embodiment shown in Fig. 12， the frequency-domain bitmap is “0011110001010. ”

By way of example， as shown in Fig. 14 where the Resource Allocation Type is 2 and the data resource region is represented by a plurality of resource blocks in frequency domain， two bits may be used to indicate the start symbol for every resource block (RB) . It is to be understood that the number of bits to indicate the start symbol may be any suitable number. In an example embodiment where the maximum duration of control resource region is configured with 3 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， “10” indicates the start symbol is the third symbol， and “11” indicates the start symbol is the fourth symbol. In an example embodiment where the maximum duration of control resource region is configured with 2 OFDM symbols， in the start symbol field， “00” indicates the start symbol is the first symbol， “01” indicates the start symbol is the second symbol， and “10” indicates the start symbol is the third symbol. It is to be understood that the bitmap of the embodiment shown in Fig. 14 may be generated in the same way as generating the bitmap of the embodiment shown in Fig. 9. Alternatively or additionally， the bitmap of the embodiment shown in Fig. 14 may be generated in the same way as generating the bitmap of the embodiment shown in Fig 12. Alternatively or additionally， the bitmap of the embodiment shown in Fig. 14 may be generated in the same way as generating the bitmap of the embodiment shown in Fig 13.

Fig. 15 illustrates a flow chart of a method 1500 for resource sharing between a control resource region and a data resource region according to embodiments of the present disclosure. The method 1500 may be implemented at the terminal device 150.

At block 1505， the terminal device 120 may receive information about a start time position of a data resource region allocated to the terminal device， the start time position may be determined based on a configuration of a control resource region associated with the data resource region， and the control resource region may be allocated to a terminal device for control information transmission.

In some embodiments， the terminal device 120 may receive a bitmap from a high level signaling or downlink control information. In some embodiments， the terminal device 120 may obtain from the bitmap the start time position of the data resource region. Alternatively or additionally， the terminal device 120 may obtain from the bitmap the mode of overlapping of the control resource region and the data resource region.

At block 1510， the terminal device 120 may perform data transmission based on the received information.

Fig. 16 is a simplified block diagram of a device 1600 that is suitable for implementing embodiments of the present disclosure. As shown， the device 1600 includes one or more processors 1610， one or more memories 1620 coupled to the processor (s) 1610， one or more transmitters and/or receivers (TX/RX) 1640 coupled to the processor 1610.

The processor 1610 may be of any type suitable to the local technical network， and may include one or more of general purpose computers， special purpose computers， microprocessors， digital signal processors (DSPs) and processors based on multicore processor architecture， as non-limiting examples. The device 1600 may have multiple processors， such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.

The memory 1620 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology， such as a non-transitory computer readable storage medium， semiconductor based memory devices， magnetic memory devices and systems， optical memory devices and systems， fixed memory and removable memory， as non-limiting examples.

The memory 1620 stores at least a part of a program 1630. The TX/RX 1640 is for bidirectional cormnunications. The TX/RX 1640 has at least one antenna to facilitate communication， though in practice an Access Node mentioned in this application may have several ones. The communication interface may represent any interface that is necessary for communication with other network elements.

The program 1630 is assumed to include program instructions that， when executed by the associated processor 1610， enable the device 1600 to operate in accordance with the embodiments of the present disclosure， as discussed herein with reference to Figs. 6 to 15. That is， embodiments of the present disclosure can be implemented by computer software executable by the processor 610 of the device 600， or by hardware， or by a combination of software and hardware.

Fig. 17 is a simplified block diagram of an apparatus 1700 that is suitable for implementing embodiments of the present disclosure. The method 600 may be implemented at the apparatus 1700. The apparatus 1700 may include a obtaining unit 1710 configured to obtain a configuration of a control resource region associated with a data resource region， the control resource region being allocated to a terminal device for control information transmission， and the data resource region being allocated to a terminal device for data transmission； a determining unit 1730 configured to determining a start time position of the data resource region based on the configuration of the control resource region； and a transmitting unit 1750 configured to transmit information about the start time position to the terminal device allocated with the data resource region.

In some embodiments， the obtaining unit 1710 may be further configured to obtain at least one of： an end time position of the control resource region， a start time position of the control resource region， an end frequency position of the control resource region， a start frequency position of the control resource region， occupation information indicating whether the control resource region is occupied， a mode of overlapping of the control resource region and the data resource region； and a degree of overlapping with the data resource region.

In some embodiments， the determining unit 1730 may be further configured to： determine a mode of overlapping of the control resource region and the data resource region； in response to the mode indicating that the control resource region and the data resource region are partial overlapped， determine a start time position of each of the plurality of resource blocks based on a degree of overlapping with the control resource region； in response to the mode indicating that the control resource region and the data resource region are non-overlapped， determine the start time position of the data resource region as a start time position of a scheduling unit； and in response to the mode indicating that the control resource region and the data resource region are full-overlapped， determine the start time position of the data resource region based on occupation information of the control resource region.

In some embodiments. the determining unit 1730 may be further configured to： determine a mode of overlapping of the control resource region and the data resource region； in response to the mode indicating that the control resource region and the data resource region are partial overlapped， determine a start time position of each of the plurality of resource blocks as an end time position of the control resource region； in response to the mode indicating that the control resource region and the data resource region are non-overlapped， determine the start time position of the data resource region as a start time position of a scheduling unit； and in response to the mode indicating that the control resource region and the data resource region are full-overlapped， determine the start time position of the data resource region based on occupation information of the control resource region.

In some embodiments， the determining unit 1730 may be further configured to determine the start time position of the data resource block based on at least one of occupation information and an end time position of the control resource region.

In some embodiments， the transmitting unit 1750 may be further configured to generate a bitmap indicating at least one of： the start time position of the data resource region and a mode of overlapping of the control resource region and the data resource region； and transmit the bitmap to the terminal device.

In some embodiment， the transmitting unit 1750 may be further configured to determine the number of bits to indicate the start time position of the data resource region based on the number of symbols used by the control resource region.

In some embodiments， transmitting the bitmap to the terminal device comprises at least one of： including the bitmap in a high level signaling， and transmitting the high level signaling to the terminal device； and including the bitmap in downlink control information， and transmitting the downlink control information to the terminal device.

Fig. 18 is a simplified block diagram of an apparatus 1800 that is suitable for implementing embodiments of the present disclosure. The method 1500 may be implemented at the apparatus 1800. The apparatus 1800 may include： a receiving unit 1810 configured to receive information about a start time position of a data resource region allocated to the terminal device， the start time position being determined based on a configuration of a control resource region associated with the data resource region， the control resource region being allocated to a terminal device for control information transmission； and a performing unit 1830 configured to perform data transmission based on the received information.

In some embodiments， the receiving unit 1810 may be further configured to receive a bitmap from a high level signaling or downlink control information； and obtaining from the bitmap at least one of： the start time position of the data resource region， and a mode of overlapping of the control resource region and the data resource region.

Based on the above description， the skilled in the art would appreciate that the present disclosure may be embodied in an apparatus， a method， or a computer program product. In general， the various exemplary embodiments may be implemented in hardware or special purpose circuits， software， logic or any combination thereof. For example， some aspects may be implemented in hardware， while other aspects may be implemented in firmware or software which may be executed by a controller， microprocessor or other computing device， although the disclosure is not limited thereto. While various aspects of the exemplary embodiments of this disclosure may be illustrated and described as block diagrams， flowcharts， or using some other pictorial representation， it is well understood that these blocks， apparatus， systems， techniques or methods described herein may be implemented in， as non-limiting examples， hardware， software， firmware， special purpose circuits or logic， general purpose hardware or controller or other computing devices， or some combination thereof.

The various blocks shown in FIG. 5 or 9 may be viewed as method steps， and/or as operations that result from operation of computer program code， and/or as a plurality of coupled logic circuit elements constructed to carry out the associated function (s) . At least some aspects of the exemplary embodiments of the disclosures may be practiced in various components such as integrated circuit chips and modules， and that the exemplary embodiments of this disclosure may be realized in an apparatus that is embodied as an integrated circuit， FPGA or ASIC that is configurable to operate in accordance with the exemplary embodiments of the present disclosure.

While this specification contains many specific implementation details， these should not be construed as limitations on the scope of any disclosure or of what may be claimed， but rather as descriptions of features that may be specific to particular embodiments of particular disclosures. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely， various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination. Moreover， although features may be described above as acting in certain combinations and even initially claimed as such， one or more features from a claimed combination can in some cases be excised from the combination， and the claimed combination may be directed to a sub-combination or variation of a sub-combination.

Similarly， while operations are depicted in the drawings in a particular order， this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order， or that all illustrated operations be performed， to achieve desirable results. In certain circumstances， multitasking and parallel processing may be advantageous. Moreover， the separation of various system components in the embodiments described above should not be understood as requiring such separation in all embodiments， and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

Various modifications， adaptations to the foregoing exemplary embodiments of this disclosure may become apparent to those skilled in the relevant arts in view of the foregoing description， when read in conjunction with the accompanying drawings. Any and all modifications will still fall within the scope of the non-limiting and exemplary embodiments of this disclosure. Furthermore， other embodiments of the disclosures set forth herein will come to mind to one skilled in the art to which these embodiments of the disclosure pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings.

Therefore， it is to be understood that the embodiments of the disclosure are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are used herein， they are used in a generic and descriptive sense only and not for purpose of limitation.

Claims

A method implemented in a network device， comprising：

obtaining a configuration of a control resource region associated with a data resource region， the control resource region being allocated to a terminal device for control information transmission， and the data resource region being allocated to a terminal device for data transmission；

determining a start time position of the data resource region based on the configuration of the control resource region； and

transmitting information about the start time position to the terminal device allocated with the data resource region.
The method of Claim 1， wherein obtaining the configuration of the control resource region comprises obtaining at least one of：

an end time position of the control resource region，

a start time position of the control resource region，

an end frequency position of the control resource region，

a start frequency position of the control resource region，

occupation information indicating whether the control resource region is occupied，

a mode of overlapping of the control resource region and the data resource region； and

a degree of overlapping with the data resource region.
The method of Claim 1， wherein the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， and wherein determining the start time position of the data resource region comprises：

determining a mode of overlapping of the control resource region and the data resource region；

in response to the mode indicating that the control resource region and the data resource region are partial overlapped， determining a start time position of each of the plurality of resource blocks based on a degree of overlapping with the control resource region；

in response to the mode indicating that the control resource region and the data resource region are non-overlapped， determining the start time position of the data resource region as a start time position of a scheduling unit； and

in response to the mode indicating that the control resource region and the data resource region are full-overlapped， determining the start time position of the data resource region based on occupation information of the control resource region.
The method of Claim 1， wherein the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， and wherein determining the start time position of the data resource region comprises：

determining a mode of overlapping of the control resource region and the data resource region；

in response to the mode indicating that the control resource region and the data resource region are partial overlapped， determining a start time position of each of the plurality of resource blocks as an end time position of the control resource region；

in response to the mode indicating that the control resource region and the data resource region are non-overlapped， determining the start time position of the data resource region as a start time position of a scheduling unit； and

in response to the mode indicating that the control resource region and the data resource region are full-overlapped， determining the start time position of the data resource region based on occupation information of the control resource region.
The method of Claim 1， wherein the data resource region is represented by a resource block in frequency domain， and wherein determining the start time position of the data resource region comprises：

determining the start time position of the data resource block based on at least one of occupation information and an end time position of the control resource region.
The method of Claim 1， wherein transmitting information about the start time position to the terminal device comprises：

generating a bitmap indicating at least one of： the start time position of the data resource region， and a mode of overlapping of the control resource region and the data resource region； and

transmitting the bitmap to the terminal device.
The method of Claim 6， wherein generating the bitmap comprises：

determining the number of bits to indicate the start time position of the data resource region based on the number of symbols used by the control resource region.
The method of Claim 6， wherein transmitting the bitmap to the terminal device comprises at least one of：

including the bitmap in a high level signaling， and transmitting the high level signaling to the terminal device； and

including the bitmap in downlink control information， and transmitting the downlink control information to the terminal device.
A method implemented in a terminal device， comprising：

receiving information about a start time position of a data resource region allocated to the terminal device， the start time position being determined based on a configuration of a control resource region associated with the data resource region， the control resource region being allocated to a terminal device for control information transmission； and

performing data transmission based on the received information.
The method of Claim 9， wherein receiving the information about a start time position comprises：

receiving a bitmap from a high level signaling or downlink control information； and

obtaining from the bitmap at least one of： the start time position of the data resource region， and a mode of overlapping of the control resource region and the data resource region.
A network device， comprising：

at least one processor； and

a memory coupled to the at least one processor， the memory storing instructions therein， the instructions， when executed by the at least one processor， causing the network device to perform acts including：

obtaining a configuration of a control resource region associated with a data resource region， the control resource region being allocated to a terminal device for control information transmission， and the data resource region being allocated to a terminal device for data transmission；

determining a start time position of the data resource region based on the configuration of the control resource region； and

transmitting information about the start time position to the terminal device allocated with the data resource region.
The network device according to Claim 11， wherein obtaining the configuration of the control resource region comprises obtaining at least one of：

an end time position of the control resource region，

a start time position of the control resource region，

an end frequency position of the control resource region，

a start frequency position of the control resource region，

occupation information indicating whether the control resource region is occupied，

a mode of overlapping of the control resource region and the data resource region； and

a degree of overlapping with the data resource region.
The network device according to Claim 11， wherein the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， and wherein determining the start time position of the data resource region comprises：

determining a mode of overlapping of the control resource region and the data resource region；

in response to the mode indicating that the control resource region and the data resource region are partial overlapped， determining a start time position of each of the plurality of resource blocks based on a degree of overlapping with the control resource region；

in response to the mode indicating that the control resource region and the data resource region are non-overlapped， determining the start time position of the data resource region as a start time position of a scheduling unit； and

in response to the mode indicating that the control resource region and the data resource region are full-overlapped， determining the start time position of the data resource region based on occupation information of the control resource region.
The network device according to Claim 11， wherein the data resource region is represented by a resource block group including a plurality of resource blocks in frequency domain， and wherein determining the start time position of the data resource region comprises：

determining a mode of overlapping of the control resource region and the data resource region；

in response to the mode indicating that the control resource region and the data resource region are partial overlapped， determining a start time position of each of the plurality of resource blocks as an end time position of the control resource region；

in response to the mode indicating that the control resource region and the data resource region are non-overlapped， determining the start time position of the data resource region as a start time position of a scheduling unit； and

in response to the mode indicating that the control resource region and the data resource region are full-overlapped， determining the start time position of the data resource region based on occupation information of the control resource region.
The network device according to Claim 11， wherein the data resource region is represented by a resource block in frequency domain， and wherein determining the start time position of the data resource region comprises：

determining the start time position of the data resource block based on at least one of occupation information and an end time position of the control resource region.
The network device according to Claim 11， wherein transmitting information about the start time position to the terminal device comprises：

generating a bitmap indicating at least one of： the start time position of the data resource region， and a mode of overlapping of the control resource region and the data resource region； and

transmitting the bitmap to the terminal device.
The network device according to Claim 16， wherein generating the bitmap comprises：

determining the number of bits to indicate the start time position of the data resource region based on the number of symbols used by the control resource region.
The network device according to Claim 16， wherein transmitting the bitmap to the terminal device comprises at least one of：

including the bitmap in a high level signaling， and transmitting the high level signaling to the terminal device； and

including the bitmap in downlink control information， and transmitting the downlink control information to the terminal device.
A terminal device， comprising：

at least one processor； and

a memory coupled to the at least one processor， the memory storing instructions therein， the instructions， when executed by the at least one processor， causing the network device to perform acts including：

receiving information about a start time position of a data resource region allocated to the terminal device， the start time position being determined based on a configuration of a control resource region associated with the data resource region， the control resource region being allocated to a terminal device for control information transmission； and

performing data transmission based on the received information.
The terminal device according to Claim 19， wherein receiving the information about a start time position comprises：

receiving a bitmap from a high level signaling or downlink control information； and

obtaining from the bitmap at least one of： the start time position of the data resource region， and a mode of overlapping of the control resource region and the data resource region.
A computer readable medium storing instructions thereon， the instructions， when executed by at least one processing unit of a machine， causing the machine to perform the method according to any one of claims 1-8.
A computer readable medium storing instructions thereon， the instructions， when executed by at least one processing unit of a machine， causing the machine to perform the method according to any one of claims 9-10.