CN108809567B

CN108809567B - Resource indication method and device

Info

Publication number: CN108809567B
Application number: CN201710309442.8A
Authority: CN
Inventors: 张旭; 刘建琴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2022-03-08
Anticipated expiration: 2037-05-04
Also published as: CN108809567A

Abstract

The present invention relates to the field of mobile communications, and in particular, to a resource indication technique in a wireless communication system. In the method, a network device determines a second time-frequency resource, where the second time-frequency resource includes at least two physical resource block group sets, each of the at least two physical resource block group sets includes at least one physical resource block group, and sends control information on a first time-frequency resource, where the control information includes first indication information and second indication information, the first indication information is used to indicate at least two physical resource block group sets of the at least two physical resource block group sets, and the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets indicated by the first indication information; and the network equipment transmits or receives data on the one or more physical resource blocks indicated by the second indication information. To achieve flexibility in resource scheduling.

Description

Resource indication method and device

Technical Field

The present invention relates to the field of mobile communications, and in particular, to a resource indication technique in a wireless communication system.

Background

In order to meet the increasing demand of data speed, the access bandwidth of the mobile communication system is gradually increased, for example, the maximum bandwidth of the LTE system is 20MHz, the access bandwidth of the terminal device is consistent with the system bandwidth, and the maximum access bandwidth can also support 20MHz, but in the current communication system, the service rate of the bearer cannot meet the service demand of the future system. For example, in next generation communication systems, such as fifth generation communication systems (5G), the access bandwidth may reach 400 MHz; moreover, the maximum access bandwidth of the user equipment is increased, and the maximum access bandwidth of the terminal equipment is at least 80 MHz.

When the network equipment and the terminal equipment carry out data transmission, the network equipment determines time-frequency resources occupied by the data transmission and sends indication information; and the terminal equipment determines the time-frequency resources occupied during data receiving/sending according to the indication information. The indication information includes position information of a frequency domain resource unit occupied by the indication data, and a minimum unit indicated by the indication information on a frequency domain includes one physical resource block or a plurality of physical resource blocks.

However, as the system bandwidth gradually increases, the frequency domain interval of the numbered adjacent physical resource block groups within each physical resource block group set gradually increases. Multiple scheduling holes may occur in the whole frequency band, that is, the indication information cannot schedule the resource.

Disclosure of Invention

A resource indication method and apparatus are described herein to achieve flexibility in resource scheduling.

In a first aspect, an embodiment of the present application provides a resource indication method. The method comprises the steps that a network device determines a second time frequency resource, wherein the second time frequency resource comprises at least two physical resource block group sets, each physical resource block group set in the at least two physical resource block group sets comprises at least one physical resource block group, the network device sends control information on a first time frequency resource, the control information comprises first indication information and second indication information, the first indication information is used for indicating at least two physical resource block group sets in the at least two physical resource block group sets, and the second indication information indicates one or more physical resource blocks in the at least two physical resource block group sets indicated by the first indication information; and the network equipment transmits or receives data on the one or more physical resource blocks indicated by the second indication information, wherein the physical resource blocks indicated by the second indication information are included in at least two physical resource block group sets indicated by the first indication information.

In a second aspect, an embodiment of the present application provides a resource indication method, including: the method comprises the steps that terminal equipment receives control information sent by network equipment on a first time-frequency resource, wherein the control information comprises first indication information and second indication information, the first indication information is used for indicating at least two physical resource block group sets in at least two physical resource block group sets, the at least two physical resource block group sets are included in a second time-frequency resource, each physical resource block group set in the at least two physical resource block group sets comprises at least one physical resource block group, and the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets; and the terminal equipment transmits or receives data on one or more physical resource blocks indicated by the second indication information in at least two physical resource block group sets indicated by the first indication information.

For example, a "physical resource block" may refer to P consecutive subcarriers occupied in the frequency domain, and the resource occupied in the time domain is Q consecutive OFDM symbols, where P and Q are natural numbers greater than 1. As another example, the "physical resource block group" includes one or more physical resource blocks. For another example, the "physical resource block group set" may be constituted by a plurality of physical resource block groups.

By adopting the methods provided by the first aspect and the second aspect, by determining at least two physical resource block group sets, under the condition of keeping the overhead of the control channel resource scheduling signaling unchanged, the resource range included in the determined physical resource block group sets is expanded, the terminal device can receive or transmit data on a section of time-frequency resource with a wide frequency domain, the problem that two adjacent physical resource blocks in the physical resource block group sets are too dispersed in the frequency domain is avoided, and thus the utilization rate of the frequency domain resource for receiving or transmitting data is improved.

In one possible design, the at least two physical resource block group sets include M physical resource block subgroups, where M is a positive integer, and the second indication information is used to indicate one or more physical resource blocks in the M physical resource block subgroups, where the second indication information is a second bitmap, and a length of the second bitmap is less than or equal to M. For example, the physical resource block subgroup may be a time-frequency resource unit including one or more physical resource blocks, where the number of physical resource blocks included in the physical resource block subgroup is less than or equal to the number of physical resource blocks included in the physical resource block group. By adopting the scheme of the physical resource block subgroup, the scheduling granularity of the time-frequency resource is finer, and the terminal equipment can flexibly use the time-frequency resource to send or receive data.

In one possible design, the number of physical resource blocks included in the physical resource block subset is less than or equal to the number of the at least two physical resource block group sets.

In one possible design, the second indication information is used to indicate one or more physical resource blocks in each of the at least two physical resource block group sets, where the second indication information is a second bitmap, and a length of the second bitmap is less than or equal to a number of physical resource blocks included in one physical resource block group set of the at least two physical resource block group sets. The bitmap is used as the indication information of the time frequency resource, so that the physical resource block used for sending or receiving data on the time frequency resource can be determined, the scheduling granularity of the time frequency resource can reach one physical resource block at the minimum, and the utilization rate of the frequency domain resource used for data transmission is improved.

In one possible design, the first indication information is a first bitmap, and a length of the first bitmap is equal to the number of the at least two physical resource block group sets. The indication adopting the bitmap can comprise all combinations of a plurality of physical resource group sets, and the indicated conditions and states are the most complete, so that the terminal equipment can transmit data information on a section of time-frequency resource with a wide frequency domain, and the problem that two adjacent physical resource blocks in the physical resource block group set are too dispersed in the frequency domain is avoided.

In one possible design, the first indication information is an identifier, and the identifier is used to identify the at least two physical resource block group sets. By adopting the scheme, the identifier has a corresponding relation with one or more physical resource block group sets, and the bit overhead is reduced by indicating through the identifier.

In a third aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing a behavior of the network device in the foregoing method. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, the network device includes a processor and a transceiver in its structure, and the processor is configured to support the network device to perform the corresponding functions in the above method. The transceiver is used for supporting communication between the network device and the terminal device, and transmitting information or instructions related to the method to the terminal device, or receiving information or data transmitted by the terminal device. The network device may also include a memory, coupled to the processor, that retains program instructions and data necessary for the network device.

In a fourth aspect, an embodiment of the present invention provides a terminal device, where the terminal device has a function of implementing a behavior of the terminal device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. The modules may be software and/or hardware.

In one possible design, the terminal device includes a transceiver in its structure, and the transceiver is configured to support the terminal device to receive the control information configured for the terminal device by the network device, and to receive data transmitted by the network device and transmit data to the network device.

In a fifth aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for the network device, which includes a program designed to execute the above aspects.

In a sixth aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for the terminal device, which includes a program designed to execute the above aspects.

In a seventh aspect, an embodiment of the present invention provides a communication system, where the system includes the network device and the terminal device in the foregoing aspects.

In an eighth aspect, an embodiment of the present application provides another resource indication method, including: the network equipment sends a high-level signaling to the terminal equipment, wherein the high-level signaling comprises first resource indication information, and the first resource indication information is used for indicating the size of a first resource set; and the network equipment sends second resource indication information and third resource indication information to the terminal equipment through a physical layer control signaling, wherein the second resource indication information is used for indicating the position of the first resource set, and the third resource indication information is used for indicating a physical resource block in the first resource set.

A ninth aspect of the present application provides another resource indication method, including: the method comprises the steps that terminal equipment receives a high-level signaling sent by network equipment, wherein the high-level signaling comprises first resource indication information, and the first resource indication information is used for indicating the size of a first resource set; the terminal equipment receives second resource indication information and third resource indication information which are sent by the network equipment through a physical layer control signaling, wherein the second resource indication information is used for indicating the position of the first resource set, and the third resource indication information is used for indicating a physical resource block in the first resource set; and the terminal equipment determines the frequency domain position of the received or sent data resource according to the first resource indication information, the second resource indication information and the third resource indication information.

With the embodiments provided in the eighth and ninth aspects, for the state where the channel state changes in the frequency domain, it is determined that the transmitted or received data is carried on discrete or continuous frequency domain resources, and therefore, higher spectral efficiency can be obtained for different scenarios.

In one possible design, the first resource indication information is used to indicate a first bandwidth, or the first resource indication information is used to indicate a number of resource blocks.

In one possible design, the second resource indication information is used to indicate a position of a set of physical resource blocks in a second bandwidth, where the second bandwidth is an available bandwidth of the terminal device, and a size of the set of physical resource blocks corresponds to the first bandwidth or a number of resource blocks indicated by the first indication information; the third indication information is used for indicating physical resource blocks in the physical resource block set. The bandwidth size can be obtained by dividing the whole system bandwidth into a plurality of sub-bands in equal proportion, and indicating the size of the time-frequency resource in the plurality of sub-bands, so that the signaling overhead can be reduced under the condition of ensuring the flexibility of the scheduling granularity.

In one possible design, the first resource indication information is used to indicate a size of a physical resource block group set.

In one possible design, the first resource indication information is used to indicate a position of a physical resource block group set in a second bandwidth, where the second bandwidth is an available bandwidth of the terminal device, and the third resource indication information is used to indicate a physical resource block in the physical resource block group set. The bandwidth size can be obtained by dividing the whole system bandwidth into a plurality of sub-bands in equal proportion, and indicating the size of the time-frequency resource in the plurality of sub-bands, so that the signaling overhead can be reduced under the condition of ensuring the flexibility of the scheduling granularity.

In one possible design, the physical layer signaling further includes fourth resource indication information indicating that physical resource block groups in the physical resource block group set are discrete or continuous in a frequency domain.

In a tenth aspect, embodiments of the present application provide a network device having a function of implementing a behavior of the network device in practice of the above-described method. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In an eleventh aspect, an embodiment of the present invention provides a terminal device, where the terminal device has a function of implementing a behavior of the terminal device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. The modules may be software and/or hardware.

In a twelfth aspect, an embodiment of the present invention provides a computer storage medium for storing computer software instructions for the network device, which includes a program designed to execute the above aspects.

In a twelfth aspect, an embodiment of the present invention provides a computer storage medium, which is used to store computer software instructions for the terminal device, and which contains a program designed to execute the above aspects.

In a thirteenth aspect, an embodiment of the present invention provides another communication system, where the system includes the network device in the tenth aspect and the terminal device in the eleventh aspect.

By adopting the method provided by the embodiment of the invention, different resource indications are determined according to different channel states, and flexible frequency domain resource indication is ensured.

Drawings

FIG. 1 is a schematic diagram of a possible application scenario of the present invention;

fig. 2 is a schematic structural diagram of a physical resource block and a physical resource block group;

fig. 3 is a schematic structural diagram of a physical resource block group, a scheduled physical resource block group set, and physical resource blocks included in the scheduled physical resource block group set;

fig. 4 is a schematic flowchart of an indication information determining method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram illustrating a plurality of physical resource block group sets according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram illustrating a plurality of physical resource block group sets according to another embodiment of the present invention;

fig. 6a is a schematic structural diagram illustrating a plurality of physical resource block group sets according to an embodiment of the present invention;

fig. 6b is a schematic structural diagram illustrating a plurality of physical resource block group sets according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram illustrating a plurality of physical resource block group sets according to another embodiment of the present invention;

fig. 8 is a schematic structural diagram illustrating a plurality of physical resource block group sets according to another embodiment of the present invention;

fig. 9 is a flowchart illustrating another indication information determining method according to an embodiment of the present invention;

fig. 10 is a flowchart illustrating another indication information determining method according to an embodiment of the present invention;

fig. 11 is a flowchart illustrating another indication information determining method according to an embodiment of the present invention;

fig. 12 is a flowchart illustrating another indication information determining method according to an embodiment of the present invention;

fig. 13 is a flowchart illustrating another indication information determining method according to an embodiment of the present invention;

fig. 14 is a flowchart illustrating another indication information determining method according to an embodiment of the present invention;

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

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

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

fig. 18 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.

Detailed Description

Although the LTE system is described as an example in the background section, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as global system for mobile communications (GSM), mobile communication systems (UMTS), Code Division Multiple Access (CDMA) systems, New 5G New air interface (New Radio), New network systems, and the like. The following description will be made of a specific embodiment by taking a 5G New air interface (New Radio) system as an example. In addition, the network architecture and the service scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not constitute a limitation to the technical solution provided in the embodiment of the present invention, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

As shown in fig. 1, the communication system includes an access network device 110 and a terminal device 120, which may be one or more. The technology described in the present invention can be applied to a Long Term Evolution (LTE) system, or other wireless communication systems using various wireless access technologies, such as cdma, fdma, tdma, ofdma, single carrier fdma, and other access technologies. In addition, the method can also be applied to a subsequent evolution system using an LTE system, such as a fifth generation 5G system and the like. For clarity, the description is made only by taking the fifth generation 5G new air interface system as an example.

Access network device 110 sends data and control information to user device 120. Wherein the control information may indicate scheduling information of the channel resources corresponding to the user equipment. Optionally, the ue 120 receives indication information corresponding to a Transport Block (TB) in a control channel, where a time-frequency resource occupied by a data channel in which the Transport Block is located includes one or more time-frequency resource sets, and the indication information is used to indicate the time-frequency resource sets.

Alternatively, optional access network device 110 may send control information to user device 120 and receive data information. Wherein the control information may indicate scheduling information of the channel resources corresponding to the user equipment. Optionally, the ue 120 receives indication information corresponding to a Transport Block (TB) in a control channel, where the Transport Block includes data information sent by the ue, and time-frequency resources occupied by the data channel include one or more time-frequency resource sets, where the indication information is used to indicate the time-frequency resource sets.

In the present application, "sending and/or receiving data" refers to that a terminal device sends data to a network device, and/or that the terminal device receives data sent by the network device.

In this application, "terminal device" may refer to a device that provides voice and/or data connectivity to a user, a handheld device having wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), an Access Point (Access Point), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), a User Device (User Device), or a User Equipment (User Equipment).

A "network device" in this application may be a base station, or an access point, or may refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) in LTE, or a fifth generation 5G new air interface (gNB or G-NodeB), which is not limited in this application.

The "symbol" in the present application includes, but is not limited to, an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a sparse code division multiple access (SCMA) symbol, a filtered orthogonal frequency division multiplexing (F-OFDM) symbol, and a non-orthogonal multiple access (NOMA) symbol, which may be determined according to actual circumstances and is not described herein again.

The "subframe" in this application may be: one subframe occupies the time-frequency resources of the whole system bandwidth in the frequency domain and is a time-frequency resource unit with a fixed time length in the time domain. The subframe may include K symbols, where a value of K may be determined according to an actual situation, and is not limited herein. For example, in LTE, one subframe occupies 14 consecutive symbols in the time domain, or, in 5G system, when the subcarrier width is 30KHz/60KHz, one subframe occupies 28/56 consecutive symbols in the time domain, where K is a natural number.

The "time slot" in this application refers to a basic time-frequency resource unit, such as a time-frequency resource occupying N consecutive OFDM symbols in the time domain, but not limited in the frequency domain, where N may be 7 or 14.

The "subcarrier width" in this application refers to the smallest granularity in the frequency domain. For example, in LTE, the subcarrier width of 1 subcarrier is 15 kHz; in 5G, the width of 1 subcarrier may be 15kHz, 30kHz or 60kHz, and may also be other values, which are not described herein.

The "physical resource block" in this application refers to P consecutive subcarriers occupied in the frequency domain, and the resources occupied in the time domain are Q consecutive OFDM symbols. Wherein P and Q are natural numbers greater than 1. For example, one unit time-frequency resource may occupy 12 consecutive subcarriers in the frequency domain and 7 consecutive OFDM symbols in the time domain, where P is 12 and Q is 7; alternatively, P is 12, Q is 14, or P and Q take different values, which are not repeated herein

The "physical resource block group" in the present application includes one or more physical resource blocks; the number of physical resource blocks (which may be denoted as N) included in one physical resource group_RB ^RBG) The number of physical resource blocks included in the frequency domain may be predefined according to the system bandwidth. The physical resource block may be a virtual resource block or an actual resource block, and the number of the virtual resource block may correspond to the number of the actual resource block one by one, or the number of the virtual resource block is different from the number of the actual resource block. For example, if the virtual resource block number is n_VRBThe actual physical resource block is numbered n_RBThe difference is N_gapFor one-to-one correspondence between the virtual resource block number and the actual resource block number, n is_VRB＝n_RB(ii) a For the difference between the virtual resource block and the actual resource block, n_VRB＝n_RB+N_gap+ x, where x is an offset value.

The "physical resource block subgroup" in this application includes one or more physical resource blocks, and the number of the included physical resource blocks may be continuous or discrete, for example, subgroup 0 may correspond to { physical resource block 0 and physical resource block 1}, or { physical resource block 0, physical resource block 8 }. The size of the physical resource block subgroup is related to the number of the indicated physical resource block group sets, and if the number of the sets is 2, the number of the physical resource blocks included in the physical resource block subgroup is 2. In addition, the number of physical resource blocks included in the physical resource block subset is smaller than the number of physical resource blocks included in the physical resource block group.

The "physical resource block group set" in the present application may be constituted by a plurality of physical resource block groups.

The system bandwidth includes N total physical resource blocks in frequency domain_RB ^DLWherein, the number of indicating bits for indicating the location of the physical resource block may be determined according to the physical resource block group included in the frequency domain by the system bandwidth. For example, table 1 is a table of predefined correspondence between physical resource blocks and physical resource block groups, and when the number of physical resource blocks included in the system bandwidth in the frequency domain is 100, that is, the system bandwidth is in the range of "64 to 110" in table 1, it can be known that the number of physical resource blocks included in a physical resource block group is 4.

TABLE 1

Range of physical resource block number within system bandwidth	The number of physical resource blocks comprised by the physical resource block group
		≤10	1
11–26	2
		27–63	3
64–110	4

Further, according to the number of physical resource blocks and the number of physical resource blocks included in each physical resource block group, it may be determined that 25 physical resource block groups are included in the system bandwidth, and the corresponding indicated bit number is 25 bits. Indication physical resource block group set indication information, physical resource block offset indication information, and physical resource block position indication information may be included in the 25 bits. The physical resource block group set is composed of a plurality of physical resource block groups, and the set number of the physical resource block groups is equal to the physical resource blocks included by the physical resource block groups. As shown in fig. 2, 25 physical resource block groups are included in the system bandwidth, and according to the number of physical resource blocks included in each physical resource block group is 4, the 25 physical resource block groups are divided into 4 physical resource block sets, and each set includes 4 different numbering intervals of adjacent physical resource blocks. For example, in fig. 2, the physical resource block group set 1 includes physical resource block groups numbered {0, 4, 8, 12, 16, 20, 24}, and so on, the physical resource block group set 2 includes physical resource block groups numbered {1, 5, 9, 13, 17, 21}, the physical resource block group set 3 includes physical resource block groups numbered {2, 6, 10, 14, 18, 22}, and the physical resource block group set 4 includes physical resource block groups numbered {3, 7, 11, 15, 19, 23 }.

Wherein the set indication information of the physical resource block group includes 2 bits for indicating a specific set of the 4 sets. In addition, the physical resource block offset indication information occupies 1 Bit, and the indication information for indicating the Bit-map indicates from the physical resource block with the smallest number or indicates from the physical resource block with the largest number, for example, if the physical resource block offset indication information is { '0' }, it indicates that the indication is performed from the physical resource block with the smallest number; if the physical resource block offset indication information is { '1' }, indicating that indication is performed from the physical resource block with the largest physical resource block number; in addition, 22 bits remain in the 25 bits, and the 22 bits are used for indicating the scheduled physical resource blocks in the physical resource block group set;

for example, as shown in fig. 3, the physical resource block group set 1 includes 7 physical resource block groups, where the 7 physical resource block groups include 28 physical resource blocks, and if the physical resource block offset indication information is { '0' }, the remaining 22 bits are indicated starting from the physical resource block with the smallest number of the 28 physical resource blocks. Where "0" denotes a physical resource block that is not scheduled and "1" denotes a physical resource block that is scheduled. If 22 bits are 1000000000000000000000, it indicates that the physical resource block with the smallest number is scheduled among the 28 physical resource blocks.

The scheduled physical resource blocks represent physical resource blocks on which the terminal device transmits and/or receives data information.

With the gradual increase of the system bandwidth, because the indication information can only indicate one physical resource block group set, in the physical resource block group set, the frequency domain interval of the numbered adjacent physical resource block groups gradually increases, a plurality of scheduling holes may occur in the whole frequency band, that is, the indication information cannot schedule the resources.

In order to solve the above technical problem, the present invention provides a method for determining resource indication, which improves the flexibility of resource scheduling under the condition of large bandwidth and on the premise of ensuring that the indication signaling is not additionally increased.

Fig. 4 is a method for determining indication information according to an embodiment of the present invention, where the method includes:

401. the network device determines a second time-frequency resource, where the second time-frequency resource includes at least two physical resource block group sets, and each of the at least two physical resource block group sets includes at least one physical resource block group.

Exemplarily, if the system bandwidth includes 100 physical resources in the frequency domain, according to table 1, it may be known that the number of physical resource block groups is 25, that is, each physical resource block group includes 4 physical resource blocks, the second time-frequency resource includes a physical resource block group set 1, a physical resource block group set 2, a physical resource block group set 3, and a physical resource block group set 4, where the physical resource block group set 1 includes 7 physical resource block groups, the physical resource block group set 2 includes 6 physical resource block groups, the physical resource block group set 3 includes 6 physical resource block groups, and the physical resource block group set 4 includes 6 physical resource block groups. Wherein, the physical resource block group set 1 and the physical resource block group set 2 are shown in fig. 5.

For example, if the system bandwidth includes 50 physical resource blocks in the frequency domain, according to table 1, it can be known that the number of physical resource block groups is 17, that is, the first 16 physical resource block groups include 3 physical resource blocks, the 17 th physical resource block group includes 2 physical resource blocks, the second time-frequency resource includes a physical resource block group set 1, a physical resource block group set 2, and a physical resource block group set 3, where the physical resource block group set 1 includes 6 physical resource block groups, the physical resource block group set 2 includes 6 physical resource block groups, and the physical resource block group set 3 includes 6 physical resource block groups. Wherein, the physical resource block group set 1 and the physical resource block group set 2 are shown in fig. 6.

In this embodiment of the present invention, the number of physical resource blocks included in the frequency domain of the system bandwidth is not limited to the above example, and the above example is only an example for understanding the present invention, and as long as the network device determines that the second time-frequency resource includes at least two physical resource block group sets, and each physical resource block group set in the at least two physical resource block group sets includes at least one physical resource block group, all of which belong to the scope to be protected by the present invention, and are not described herein again.

402. The network device sends control information on a first time-frequency resource, wherein the control information includes first indication information and second indication information, the first indication information is used for indicating at least two physical resource block group sets in the at least two physical resource block group sets, the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets indicated by the first indication information, and the one or more physical resource blocks are used for sending and/or receiving data.

Illustratively, as shown in fig. 5, the first indication information is used to indicate the physical resource block group set 1 and the physical resource block group set 2, since the physical resource block group set 1 includes 7 physical resource block groups, and the physical resource block group set 2 includes 6 physical resource block groups, each physical resource block group includes 4 physical resource blocks, the second indication information is used to indicate one or more physical resource blocks of the 52 physical resource blocks, and the one or more physical resource blocks are used for transmitting or receiving data.

For example, as shown in fig. 6, the first indication information is used to indicate the physical resource block group set 1 and the physical resource block group set 2, since the physical resource block group set 1 includes 6 physical resource block groups, the physical resource block group set 2 includes 6 physical resource block groups, and except that the 17 th physical resource block group includes 2 physical resource blocks, the other physical resource block groups include 3 physical resource blocks. Accordingly, the second indication information is used to indicate one or more physical resource blocks of the 35 physical resource blocks, which are used to transmit or receive data.

For example, as shown in fig. 7, the first indication information is used to indicate the physical resource block group set 1, the physical resource block group set 2, and the physical resource block group set 3, since the physical resource block group set 1 includes 7 physical resource block groups, the physical resource block group set 2 includes 6 physical resource block groups, and the physical resource block group set 3 includes 6 physical resource block groups, each physical resource block group includes 4 physical resource blocks, the second indication information is used to indicate one or more physical resource blocks of 76 physical resource blocks, where the one or more physical resource blocks are used for transmitting or receiving data.

In this embodiment of the present invention, the content indicated by the first indication information and the content indicated by the second indication information are not limited to the above examples, and the above examples are only examples for understanding the present invention, as long as the first indication information is used to indicate at least two physical resource block group sets in the at least two physical resource block group sets, and the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets indicated by the first indication information, all belong to the scope to be protected by the present invention, and are not described herein again.

In one example, the at least two physical resource block group sets include M physical resource block subgroups, where M is a positive integer, and the second indication information is used to indicate one or more physical resource blocks in the M physical resource block subgroups, where the second indication information is a second bitmap, and a length of the second bitmap is less than or equal to M. By adopting the scheme of the physical resource block subgroup, the scheduling granularity of the time-frequency resource is finer, so that the terminal equipment can flexibly use the time-frequency resource to send or receive data.

For example, the number of the physical resource block groups may be equal to or smaller than a bit size used for resource scheduling, where the bit size used for resource scheduling is a ratio of the number of total physical resource blocks included in the system bandwidth to the number of physical resource blocks included in the physical resource block group.

For example, when the system bandwidth includes 100 physical resource blocks, each group has 4 physical resource blocks, and there are 25 physical resource block groups, that is, the bits used for resource scheduling are 25. When the system bandwidth includes 50 physical resource blocks, each group has 3 physical resource blocks, and there are 17 physical resource block groups (where the last physical resource block group includes 2 physical resource blocks), that is, the bit used for resource scheduling is 17.

Illustratively, a part of bits used by resource scheduling is used to indicate the set of physical resource block groups, another part of bits is used to indicate that the starting number of the physical resource block subgroups starts from the minimum number or from the maximum number, and bits other than the part and the another part are used to indicate one or more physical resource blocks in the M physical resource block subgroups.

For example, as shown in fig. 8, there are 25 physical resource block groups in total, and the bits used for scheduling are 25 bits, where the first indication information indicates one or more of physical resource block group set 1, physical resource block group set 2, physical resource block group set 3, and physical resource block group set 4 with 4 bits, and indicates the starting number of the physical resource block group subgroup starting from the minimum number and the remaining 20 bits with 1 bit.

As shown in fig. 8, if the first indication information indicates that the physical resource block group set 1 and the material resource group set 2 collectively include 52 physical resource blocks, and if each sub-group includes 2 physical resource blocks, the 52 physical resource blocks are divided into 26 sub-groups, and the second indication information is used to indicate a physical resource block in the 26 physical resource block sub-groups. As described above, if the starting number of the physical resource block subgroups is indicated by 1 bit starting from the minimum number and 20 bits are used to indicate one or more physical resource blocks in 26 physical resource block subgroups, the second indication information may be represented by { 10000000000000000000 } through a bitmap, which indicates that 2 physical resource blocks in the smallest-numbered subgroup are scheduled in the 26 physical resource block subgroups.

As shown in fig. 8, if the first indication information indicates that the physical resource block group set 1 and the material resource group set 2 collectively include 52 physical resource blocks, and if each sub-group includes 4 physical resource blocks, the 52 physical resource blocks are divided into 13 sub-groups, and the second indication information is used for indicating one or more physical resource blocks in the 13 sub-groups of physical resource blocks. As described above, the starting number of the physical resource block subgroups is indicated by 1 bit starting from the minimum number, wherein the second indication information may be { 1000000000000 } represented by a bitmap, which indicates that 4 physical resource blocks in the smallest-numbered subgroups are scheduled among 13 physical resource block subgroups. It should be specifically noted that the bit length of the first indication information and the second indication information may be smaller than the 25 bits described above, that is, only 18 bits or other bit lengths are needed, which is not described herein again.

For example, as shown in fig. 8, there are 25 physical resource block groups in total, and the bits used for scheduling are 25 bits, where 4 bits are used to indicate at least two of the physical resource block group set 1, the physical resource block group set 2, the physical resource block group set 3, and the physical resource block group set 4, and 1 bit is used to indicate the starting number of the physical resource block group subgroup starting from the maximum number and the remaining 20 bits. The second indication information may be 10000000000000000000 represented by a bitmap, which indicates that physical resource blocks in the 20 th sub-group are scheduled among the 20 physical resource block sub-groups. For another example, { 01000000100000000000 }, indicates that the physical resource block in the 19 th sub-group and the physical resource block in the 12 th sub-group are scheduled.

For another example, as shown in fig. 6, there are 17 physical resource block groups in total, and the bits used for scheduling are 17 bits, where at least two of the physical resource block group set 1, the physical resource block group set 2, and the physical resource block group set 3 (a set of resource blocks without diagonal lines in the figure) are indicated by 3 bits, the start number of the physical resource block group subgroup is indicated by 1 bit, starting from the minimum number, and the remaining 13 bits.

For another example, fig. 6 includes 17 physical resource block groups, that is, the bits used for resource scheduling are 17 bits, where 3 bits are used to indicate at least two of the physical resource block group set 1, the physical resource block group set 2, and the physical resource block group set 3 (the set of resource blocks without diagonal lines in the figure), and 1 bit is used to indicate that the start number of the physical resource block group starts from the minimum number, so that 13 bits are used to indicate the physical resource blocks in the physical resource block group.

Wherein, the physical resource block group set 1 and the physical resource block group set 2 include 35 physical resource blocks in total, if each sub-group includes 2 physical resource blocks, the 35 physical resource blocks can be divided into 18 sub-groups, and the last sub-group (18 th physical resource block sub-group) includes 1 physical resource block, the second indication information is used to indicate the physical resource block in the 18 physical resource block sub-groups, for example, the second indication information may be { 0000000000001 } through bitmap representation, and then it indicates that 2 physical resource blocks in the 13 th physical resource block sub-group are scheduled; for another example, the second indication information may be { 0010000000001 } indicated by a bitmap, which indicates that 2 physical resource blocks in the 3 rd physical resource block subset and 2 physical resource blocks in the 13 th physical resource block subset are scheduled.

It should be noted that, if the first indication information is used to indicate at least two sets of physical resource block groups, and the second indication information is used to indicate one or more physical resource blocks in M physical resource block subgroups, the number of physical resource blocks included in the M physical resource block subgroups increases with the increase of the number of physical resource block group sets.

In another example, the physical resource block subgroup comprises a number of physical resource blocks smaller than or equal to a number of the at least two physical resource block group sets.

In another example, the second indication information is used to indicate one or more physical resource blocks in each of the at least two physical resource block group sets, where the second indication information is a second bitmap, and a length of the second bitmap is less than or equal to a number of physical resource blocks included in one of the at least two physical resource block group sets. The mode of using the bitmap as the indication information of the time frequency resource can make clear the physical resource block used for sending or receiving data on the time frequency resource, so that the scheduling granularity of the time frequency resource can reach one physical resource block at the minimum, and the utilization rate of the frequency domain resource used for data transmission is improved.

Illustratively, a part of bits used by the resource scheduling is used to indicate the physical resource block group set, another part of bits is used to indicate the shift information, and bits other than the part and the another part are used to indicate one or more physical resource blocks in the M physical resource block subgroups.

For example, as shown in fig. 6a, the first indication information indicates a physical resource block group set 1 and a physical resource block group set 2, and the shift indication information indicates 0, which indicates that there is no shift in the physical resource blocks indicated by the second indication information. The second indication information includes a bit sequence having a bit length of 22; if the bit sequence is { 1010000000000000000000 }, it indicates that physical resource block 0 and physical resource block 2 in physical resource block group set 1 are selected as physical resource blocks for data transmission and transmission; and the physical resource blocks 8 and 10 in the physical resource block group set 2 are selected as physical resource blocks for data transmission and transmission. Here, the second indication information indicates each physical resource block group set.

For example, as shown in fig. 6b, if the shift indication information indicates 1, it indicates that there is a shift in the physical resource block indicated by the second indication information. The method as described above, the second indication information comprises a bit sequence having a bit length of 22; if the bit sequence is { 1000000000000000000000 }, it indicates that the physical resource block 18 in the physical resource block group set 1 is selected as a physical resource block for data transmission and reception; and the physical resource blocks 10 in the physical resource block group set 2 are selected as physical resource blocks for data transmission and reception. Here, the second indication information indicates each physical resource block group set.

The above-mentioned method for indicating shift and the method for indicating the start number starting from the minimum number or starting from the maximum number can be used alternatively, and the present invention does not limit this too much. In addition, the method for separately indicating each physical resource block group set and the method for indicating the physical resource block group set by grouping the physical resource block group sets according to the size of the number may be used alternatively, and the present invention is not limited to this.

In another example, the first indication information is a first bitmap, and the length of the first bitmap is equal to the number of the at least two physical resource block group sets. For example, when the first indication information is used to indicate 4 sets of physical resource block groups, the length of the first bitmap is 4 bits, and for example, when the first indication information is used to indicate 3 sets of physical resource block groups, the length of the first bitmap is 3 bits. The indication mode adopting the bitmap can comprise all combinations of a plurality of physical resource group sets, and the indicated conditions and states are the most complete, so that the terminal equipment can transmit data information on a section of time-frequency resource with a wide frequency domain, and the problem that two adjacent physical resource blocks in the physical resource block group set are too dispersed in the frequency domain is avoided.

In another example, the first indication information is an identifier for identifying the at least two physical resource block group sets. By adopting the scheme, the identifier has a corresponding relation with one or more physical resource block group sets, and the bit overhead is reduced by indicating through the identifier.

The embodiment in which the first indication information is an identifier is shown in the following table:

identification value	Resource collection
			0	Physical resource block set 1
1	Physical resource block set 2
		2	Set of physical resource blocks 3
3	Set of physical resource blocks 4
		4	Physical resource block set 1 and physical resource block set 2
5	Physical resource block set 2 and physical resource block set 3
		6	Set of physical resource blocks 3 and set of physical resource blocks 4
7	<Retention>

Where the identification value corresponds to a 3-bit sequence of the indication information, where {000} corresponds to the value 0, {001} corresponds to the value 1, {110} corresponds to the value 6, and so on.

403. The terminal equipment receives control information sent by the network equipment on a first time-frequency resource, wherein the control information comprises first indication information and second indication information.

Optionally, before step 403, the terminal device may further receive indication information of a broadcast channel, so as to determine the second time-frequency resource. For example, the second time-frequency resource includes at least two physical resource block group sets, and each of the at least two physical resource block group sets includes at least one physical resource block group.

404. The network device transmits or receives data on the one or more physical resource blocks indicated by the second indication information, wherein the physical resource blocks indicated by the second indication information are included in at least two physical resource block group sets indicated by the first indication information.

For example, as shown in fig. 5, the second indication information indicates that 52 physical resource blocks are counted in the physical resource block group set 1 and the physical resource block group set 2, and the network device transmits data to the terminal device on one or more resource blocks of the 52 resource blocks, or receives data transmitted by the terminal device on one or more resource blocks of the 52 resource blocks.

405. And the terminal equipment transmits or receives data on one or more physical resource blocks indicated by the second indication information in at least two physical resource block group sets indicated by the first indication information.

Illustratively, as shown in fig. 5, the terminal device receives data transmitted by the network device on one or more resource blocks of the 52 resource blocks, or transmits data to the network device on one or more resource blocks of the 52 resource blocks.

It is particularly emphasized that steps 404 or 405 are performed out of order.

It is to be particularly emphasized that step 404 may be combined with steps 401 to 403 as an independent method, and step 405 may also be combined with steps 401 to 403 as an independent method, which will not be described again.

Optionally, before step 401, the network device determines, according to the system bandwidth to be scheduled, the number of physical resource blocks included in the physical resource block group, and determines, by the network device, a bit size used for resource scheduling, where the bit size is the number of physical resource block groups included in the system bandwidth.

By determining at least two physical resource block group sets, under the condition of keeping the control channel resource scheduling signaling overhead unchanged, the resource range included by the determined physical resource block group sets is enlarged, the terminal equipment can receive or send data on a section of time-frequency resource with a wide frequency domain, the problem that two adjacent physical resource blocks in the physical resource block group sets are too dispersed in the frequency domain is avoided, and therefore the utilization rate of the frequency domain resource for receiving or sending data is improved.

Fig. 9 is another resource indication method provided by the present invention, where the method includes:

901. the terminal equipment receives a high-level signaling sent by the network equipment, wherein the high-level signaling comprises first resource indication information, and the first resource indication information is used for indicating the size of a first resource set.

In an example, the higher layer signaling may be RRC signaling, system information, a second message during initial access, or a fourth message during initial access, and may also be other information as long as the first resource indication information can be included.

In another example, the first resource indication information is used to indicate a size of a set of physical resource block groups. For example, the first indication information may indicate that the size of the first resource set accounts for 1/4 of the system bandwidth, or may indicate that the size of the first resource set accounts for 1/2 of the system bandwidth.

In another example, the first resource indication information is for indicating a first bandwidth. The exemplary bandwidth size of the first resource set in the frequency domain, for example, the first resource indication information is used to indicate that the first bandwidth is 5MHz, 10MHz, 15MHz, 20MHz or other values, which are not enumerated herein. When the first resource indication information indicates that the first bandwidth is 5MHz, it indicates that the bandwidth of the first resource set in the frequency domain is 5 MHz.

In another example, the first resource indication information indicates a number of resource blocks. For example, the number of resource blocks may include 25, 50, 75, or 100 or other values, not to be enumerated herein. For example, the first resource indication information is used to indicate that the number of resource blocks is 25.

902. The terminal equipment receives second resource indication information and third resource indication information which are sent by the network equipment through a physical layer control signaling, wherein the second resource indication information is used for indicating the position of the first resource set, and the third resource indication information is used for indicating a physical resource block in the first resource set;

in one example, the physical layer control signaling includes: the common downlink control information, the downlink control information DCI, or the control indication information on the formulated time-frequency resource located in the common search space of the control channel may also be other information, as long as the second resource indication information and the third resource indication information can be sent, all of which belong to the scope of the present invention to be protected.

As shown in fig. 10, the system bandwidth includes 25 physical resource block groups, and each physical resource block group includes 4 physical resource blocks, where the 25 physical resource block groups may be divided into 4 resource sets, the first resource set indicated by the second resource indication information is located in the first 6 physical resource block groups, and the third indication information is used to indicate a physical resource block included in at least one physical resource block group in the first 6 physical resource block groups.

As shown in fig. 11, the system bandwidth includes 18 physical resource block groups, each physical resource block group includes 3 physical resource blocks, the 18 physical resource block groups may be divided into 3 resource sets, the first resource set indicated by the second resource indication information is located in the first 6 physical resource block groups, and the third indication information is used to indicate a physical resource block included in at least one physical resource block group in the first 6 physical resource block groups. For another example, as shown in fig. 12, the second resource indication information may also be used to indicate that the position of the first resource set is the 7 th to 11 th physical resource block groups, and the third indication information is used to indicate a physical resource block included in at least one physical resource block group in the 7 th to 11 th physical resource block groups.

In another example, when the first resource indication information is used to indicate a first bandwidth, a ratio P of the first bandwidth to the system bandwidth is obtained according to the indicated bandwidth size, where P is a natural number.

For example: the system bandwidth may be 20MHz, the indicated first bandwidth may be 5MHz, and the ratio P20/5 is 4, where P corresponds to the information length of the second resource indication information,

if P is 4, the length of the indication information is 2 bits; wherein {00} corresponds to a first resource set, {01} corresponds to a second resource set, {10} corresponds to a third resource set, and {11} corresponds to a fourth resource set. The starting physical resource block of the first resource set is the physical resource block with the number of 0, the starting physical resource block of the second resource set corresponds to the physical resource block with the number of 25, the starting physical resource block of the third resource set corresponds to the physical resource block with the number of 50, and the starting physical resource block of the fourth resource set corresponds to the physical resource block with the number of 75.

Another example is: the system bandwidth is 100MHz, which indicates that the first bandwidth is 20MHz, and the ratio P is 100/20 is 5, then P corresponds to the information length of the second resource indication information,

if P is 5, the length of the indication information is 3 bits; wherein {000} corresponds to a first set of resources, {001} corresponds to a second set of resources, {010} corresponds to a third set of resources, {011} corresponds to a fourth set of resources, and {100} corresponds to a fifth set of resources. The starting physical resource block of the first resource set is the physical resource block with the number of 0, the starting physical resource block of the second resource set corresponds to the physical resource block with the number of 100, the starting physical resource block of the third resource set corresponds to the physical resource block with the number of 200, the starting physical resource block of the fourth resource set corresponds to the physical resource block with the number of 300, and the starting physical resource block of the fifth resource set corresponds to the physical resource block with the number of 400.

Another example is: system bandwidth of 400MHz indicating that the first bandwidth is 80MHz, and the ratio P is 400/80 is 5, P corresponds to the information length of the second resource indication information,

if P is 5, the length of the indication information is 3 bits; wherein {000} corresponds to a first set of resources, {001} corresponds to a second set of resources, {010} corresponds to a third set of resources, {011} corresponds to a fourth set of resources, and {100} corresponds to a fifth set of resources. The starting physical resource block of the first resource set is the physical resource block with the number of 0, the starting physical resource block of the second resource set corresponds to the physical resource block with the number of 400, the starting physical resource block of the third resource set corresponds to the physical resource block with the number of 800, the starting physical resource block of the fourth resource set corresponds to the physical resource block with the number of 1200, and the starting physical resource block of the fifth resource set corresponds to the physical resource block with the number of 1600.

The size of the system bandwidth and the size of the first bandwidth are only examples for understanding the present invention, and as long as the first resource indication information is used for indicating the first bandwidth, the ratio P of the first bandwidth to the system bandwidth can be obtained according to the indicated bandwidth, which all belong to the scope to be protected by the present invention, and are not described herein again.

In another example, the first resource indication information indicates a number of resource blocks. And obtaining the ratio P of the first bandwidth to the system bandwidth according to the number of the indicated resource blocks, wherein P is a natural number.

For example, the number of physical resource blocks included in the system bandwidth is 100 physical resource blocks, the indicated first bandwidth includes 25 physical resource blocks, and if the ratio P is 100/25 is 4, P corresponds to the information length of the second resource indication information,

if P is 4, the length of the indication information is 2 bits; wherein {00} corresponds to a first resource set, {01} corresponds to a second resource set, {10} corresponds to a third resource set, and {11} corresponds to a fourth resource set. Wherein the first dataThe starting physical resource block of the source set is the physical resource block numbered 0, the starting physical resource block of the second resource set corresponds to the physical resource block numbered 25, the starting physical resource block of the third resource set corresponds to the physical resource block numbered 50, and the starting physical resource block of the fourth resource set corresponds to the physical resource block numbered 75.

For another example, the number of physical resource blocks included in the system bandwidth is 50 physical resource blocks, the indicated first bandwidth includes 17 physical resource blocks, if the ratio P is 50/17 ≈ 3, then P corresponds to the information length of the second resource indication information,

if P is 3, the length of the indication information is 2 bits; where {00} corresponds to a first set of resources, {01} corresponds to a second set of resources, and {10} corresponds to a third set of resources. The initial physical resource block of the first resource set is the physical resource block with the number 0, the initial physical resource block of the second resource set corresponds to the physical resource block with the number 17, and the initial physical resource block of the third resource set corresponds to the physical resource block with the number 34.

For another example, the number of physical resource blocks included in the system bandwidth is 500 physical resource blocks, the indicated first bandwidth includes 100 physical resource blocks, and if the ratio P is 500/100 is 5, P corresponds to the information length of the second resource indication information,

if P is 5, the length of the indication information is 3 bits; wherein {000} corresponds to a first resource set, {001} corresponds to a second resource set, {010} corresponds to a third resource set, {011} corresponds to a fourth resource set, and {100} corresponds to a fifth resource set. Wherein, the initial physical resource block of the first resource set is the physical resource block with the number of 0, the initial physical resource block of the second resource set corresponds to the physical resource block with the number of 100, the initial physical resource block of the third resource set corresponds to the physical resource block with the number of 200, and the initial physical resource block of the fourth resource set corresponds to the physical resource block with the number of 300The source block, the starting physical resource block of the fifth set of resources, corresponds to the physical resource block numbered 400.

The number of resource blocks is only an example for understanding the present invention, as long as the first resource indication information is used for indicating the number of resource blocks. Obtaining the ratio P of the first bandwidth to the system bandwidth according to the number of the indicated resource blocks belongs to the protection scope of the present invention, and is not described herein again.

In another example, the first resource indication information is used to indicate a position of a physical resource block group set in a second bandwidth, where the second bandwidth is an available bandwidth of the terminal device, and the third resource indication information is used to indicate a physical resource block in the physical resource block group set.

In another example, the second resource indication information is used to indicate a position of a set of physical resource blocks in a second bandwidth, where the second bandwidth is an available bandwidth of the terminal device, a size of the set of physical resource blocks corresponds to the first bandwidth or a number of resource blocks indicated by the first indication information, and the third indication information is used to indicate physical resource blocks in the set of physical resource blocks. For example, the bandwidth size may be obtained by dividing the entire system bandwidth into a plurality of subbands in equal proportion, and indicating the size of the time-frequency resource in the plurality of subbands, so as to reduce signaling overhead while ensuring flexibility of scheduling granularity.

In another example, the physical layer signaling further includes fourth resource indication information indicating that physical resource block groups in the physical resource block group set are discrete or continuous in a frequency domain.

The fourth resource indication information is used for indicating that the physical resource block groups in the physical resource block group set are discrete in the frequency domain, and means that discrete mapping is performed according to the granularity of each physical resource block group, where physical resource blocks spaced between every two adjacent physical resource block groups in the physical resource block group set are equal.

For example, as shown in fig. 13, the fourth resource indication information is used to indicate that the physical resource block groups in the physical resource block group set are discrete in the frequency domain, and the physical resource block groups numbered 0, 4, 8, 12 and 20 are separated by four physical resource block groups.

As shown in fig. 14, when the physical resource block group is discrete in the frequency domain, a plurality of consecutive physical resource blocks may be distributed at equal intervals.

It is particularly emphasized that the number of consecutive physical resource blocks may be configured or predefined by higher layer signaling.

903. And the terminal equipment determines the frequency domain position of the received or sent data resource according to the first resource indication information, the second resource indication information and the third resource indication information.

The terminal equipment determines the frequency domain position of the received data according to the first resource indication information, the second resource indication information and the third resource indication information; or the terminal equipment determines the frequency domain position of the transmitted data according to the first resource indication information, the second resource indication information and the third resource indication information.

By adopting the method provided by the embodiment, the transmitted or received data is determined to be carried on discrete or continuous frequency domain resources according to the state of the channel state changing in the frequency domain, so that higher spectral efficiency can be obtained according to different scenes.

The above-mentioned scheme provided by the embodiment of the present invention is introduced mainly from the perspective of interaction between network elements. It is to be understood that each network element, such as the terminal device and the network device, etc., contains corresponding hardware structures and/or software modules for performing each function in order to realize the functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

Fig. 15 is a schematic structural diagram of a network device according to an embodiment of the present invention, where the network device includes:

a processing module 1501, configured to determine a second time-frequency resource, where the second time-frequency resource includes at least two physical resource block group sets, and each physical resource block group set in the at least two physical resource block group sets includes at least one physical resource block group;

a transceiving module 1502, configured to send control information on a first time-frequency resource, where the control information includes first indication information and second indication information, the first indication information is used to indicate at least two physical resource block group sets of the at least two physical resource block group sets, and the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets indicated by the first indication information; and

the transceiving module 1502 is configured to transmit or receive data on the one or more physical resource blocks indicated by the second indication information, where the physical resource blocks indicated by the second indication information are included in at least two physical resource block group sets indicated by the first indication information.

It should be noted that, the network device has a function of implementing the network device behavior in the method shown in fig. 4, and details are not described herein again.

In an example, the entity apparatus corresponding to the processing module in the embodiment of the present invention may be a processor, and the entity device corresponding to the transceiver module may be a transceiver. Further, the apparatus may also include a memory for storing program codes and data of the network device.

Fig. 16 is a schematic structural diagram of a terminal device according to an embodiment of the present invention, where the terminal device includes:

a transceiver module 1601, configured to receive control information sent by a network device on a first time-frequency resource, where the control information includes first indication information and second indication information, where the first indication information is used to indicate at least two physical resource block group sets of at least two physical resource block group sets, the at least two physical resource block group sets are included in a second time-frequency resource, each of the at least two physical resource block group sets includes at least one physical resource block group, and the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets;

the transceiver module 1601 is configured to transmit or receive data on one or more physical resource blocks indicated by the second indication information in the at least two physical resource block group sets indicated by the first indication information.

It should be noted that the terminal device has a function of implementing the behavior of the terminal device in the method shown in fig. 4, and details are not described herein again.

In one example, the entity device corresponding to the transceiver module in the embodiment of the present invention may be a transceiver. Further, the apparatus may also include a memory for storing program codes and data of the network device.

Fig. 17 is a schematic structural diagram of a network device according to an embodiment of the present invention, where the network device includes:

a processing module 1701, configured to generate resource indication information, second resource indication information, and third resource indication information;

a sending module 1702, configured to send a high-level signaling to a terminal device, where the high-level signaling includes first resource indication information generated by a processing module, and the first resource indication information is used to indicate a size of a first resource set;

the sending module 1702 is configured to send, to the terminal device through a physical layer control signaling, second resource indication information and third resource indication information that are generated by the processing module 1701, where the second resource indication information is used to indicate a position of the first resource set, and the third resource indication information is used to indicate a physical resource block in the first resource set.

It should be noted that, the network device has a function of implementing the network device behavior in the method shown in fig. 9, and details are not described herein again.

In an example, the entity apparatus corresponding to the processing module in the embodiment of the present invention may be a processor, and the entity device corresponding to the sending module may be a transmitter. Further, the apparatus may also include a memory for storing program codes and data of the network device.

Fig. 18 is a schematic structural diagram of a terminal device according to an embodiment of the present invention, where the terminal device includes:

a receiving module 1801, configured to receive a high-level signaling sent by a network device, where the high-level signaling includes first resource indication information, and the first resource indication information is used to indicate a size of a first resource set;

the receiving module 1801 is configured to receive second resource indication information and third resource indication information sent by the network device through a physical layer control signaling, where the second resource indication information is used to indicate a position of the first resource set, and the third resource indication information is used to indicate a physical resource block in the first resource set;

a processing module 1802, configured to determine a frequency domain position of a data resource to be received or sent according to the first resource indication information, the second resource indication information, and the third resource indication information received by the receiving module 1801.

It should be noted that, the terminal device has a function of implementing the behavior of the terminal device in the method shown in fig. 9, and details are not described herein again.

In an example, the entity apparatus corresponding to the processing module in the embodiment of the present invention may be a processor, and the entity device corresponding to the receiving module may be a receiver. Further, the apparatus may also include a memory for storing program codes and data of the network device.

The network architecture and the service scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may consist of corresponding software modules that may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a terminal device. Of course, the processor and the storage medium may reside as discrete components in a terminal device.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in this invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.

Claims

1. A method for resource indication, comprising:

the network equipment determines a second time-frequency resource, wherein the second time-frequency resource comprises at least two physical resource block group sets, each physical resource block group set of the at least two physical resource block group sets comprises at least one physical resource block group, the at least two physical resource block group sets comprise M physical resource block group subgroups, and M is a positive integer;

the network device sends control information on a first time-frequency resource, wherein the control information includes first indication information, shift indication information and second indication information, the first indication information is used for indicating at least two physical resource block group sets in the at least two physical resource block group sets, the shift indication information is used for indicating whether there is a shift of a physical resource block indicated by the second indication information, and the second indication information indicates a selected physical resource block in the at least two physical resource block group sets indicated by the first indication information; and

the network equipment transmits or receives data on one or more physical resource blocks indicated by the second indication information, wherein the physical resource blocks indicated by the second indication information are contained in at least two physical resource block group sets indicated by the first indication information.

2. A method for resource indication, comprising:

the terminal device receives control information sent by a network device on a first time-frequency resource, wherein the control information includes first indication information, shift indication information and second indication information, the first indication information is used for indicating at least two physical resource block groups of at least two physical resource block group sets, the at least two physical resource block group sets are included in a second time-frequency resource, each physical resource block group of the at least two physical resource block group sets includes at least one physical resource block group, the shift indication information is used for indicating whether there is a shift of a physical resource block indicated by the second indication information, the second indication information indicates a selected physical resource block of the at least two physical resource block group sets, the at least two physical resource block group sets include M physical sub-group resource blocks, m is a positive integer;

and the terminal equipment transmits or receives data on one or more physical resource blocks indicated by the second indication information in at least two physical resource block group sets indicated by the first indication information.

3. The method according to claim 1 or 2,

the second indication information is used for indicating one or more physical resource blocks in the M physical resource block subgroups, wherein the second indication information is a second bitmap, and the length of the second bitmap is smaller than or equal to M.

4. The method according to claim 3, wherein the subgroup of physical resource blocks comprises a number of physical resource blocks smaller than or equal to the number of the at least two sets of physical resource block groups.

5. The method according to claim 1 or 2,

the second indication information is used to indicate one or more physical resource blocks in each of the at least two physical resource block group sets, where the second indication information is a second bitmap, and a length of the second bitmap is less than or equal to a number of physical resource blocks included in one of the at least two physical resource block group sets.

6. The method according to claim 1 or 2, wherein the first indication information is a first bitmap, and the length of the first bitmap is equal to the number of the at least two physical resource block group sets.

7. The method according to claim 1 or 2, wherein the first indication information is an identifier for identifying the at least two physical resource block group sets.

8. A resource indication apparatus, comprising:

a processing module, configured to determine a second time-frequency resource, where the second time-frequency resource includes at least two physical resource block group sets, each of the at least two physical resource block group sets includes at least one physical resource block group, the at least two physical resource block group sets include M physical resource block group subgroups, and M is a positive integer;

a transceiver module, configured to transmit control information on a first time-frequency resource, where the control information includes first indication information, shift indication information, and second indication information, the first indication information is used to indicate at least two physical resource block groups of the at least two physical resource block group sets, the shift indication information is used to indicate whether there is a shift in a physical resource block indicated by the second indication information, and the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets indicated by the first indication information; and

the transceiver module is configured to transmit or receive data on the one or more physical resource blocks indicated by the second indication information, where the one or more physical resource blocks indicated by the second indication information are included in at least two physical resource block group sets indicated by the first indication information.

9. A resource indication apparatus, comprising:

a transceiver module, configured to receive control information sent by a network device on a first time-frequency resource, where the control information includes first indication information, shift indication information, and second indication information, the first indication information is used to indicate at least two physical resource block group sets of at least two physical resource block group sets, the at least two physical resource block group sets are included in a second time-frequency resource, each of the at least two physical resource block group sets includes at least one physical resource block group, the shift indication information is used to indicate whether there is a shift in a physical resource block indicated by the second indication information, the second indication information indicates one or more physical resource blocks included in the at least two physical resource block group sets, the at least two physical resource block group sets include M physical resource block subgroups, m is a positive integer;

the transceiver module is configured to transmit or receive data on one or more physical resource blocks indicated by the second indication information in the at least two physical resource block group sets indicated by the first indication information.

10. The apparatus according to claim 8 or 9,

11. The apparatus of claim 10, wherein the subgroup of physical resource blocks comprises a number of physical resource blocks smaller than or equal to a number of the at least two sets of physical resource block groups.

12. The apparatus according to claim 8 or 9,

13. The apparatus according to claim 8 or 9, wherein the first indication information is a first bitmap, and a length of the first bitmap is equal to the number of the at least two physical resource block group sets.

14. The apparatus according to claim 8 or 9, wherein the first indication information is an identifier for identifying the at least two physical resource block group sets.

15. A communication system comprising a resource indication arrangement as claimed in any one of claims 8, 10 to 14 and a resource indication arrangement as claimed in claims 9, 10 to 14.