CN113498190A

CN113498190A - Method and communication device for transmitting control information

Info

Publication number: CN113498190A
Application number: CN202010271311.7A
Authority: CN
Inventors: 曾裕; 刘思綦; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-10-12
Anticipated expiration: 2040-04-08
Also published as: CN113498190B

Abstract

The embodiment of the invention discloses a method for transmitting control information and communication equipment, which are used for enabling network equipment and user equipment to understand the size of the control information consistently and avoiding user blind detection so as to improve service reliability. The method comprises the following steps: transmitting target control information, the target control information comprising: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

Description

Method and communication device for transmitting control information

Technical Field

The present invention relates to the field of communications, and in particular, to a method and a communications device for transmitting control information.

Background

Transmitted on the Control channel is Control Information related to the shared channel, such as Downlink Control Information (DCI), and the Control Information carries resource indication Information to indicate resource allocation. The terminal decodes the control information correctly, and then can acquire corresponding Shared Channel data, such as Physical Downlink Shared Channel (PDSCH) data or Physical Uplink Shared Channel (PUSCH) data.

In the case that multiple resource pools exist, different resource pool configurations may be different, for example, the number of sub-channels (subchannels) and/or the maximum number of resources (N _ max) may be different, which results in inconsistent understanding of the size of the control information by the network device and the User Equipment (UE), and the User needs to perform blind detection, so that the service reliability is reduced.

Disclosure of Invention

The embodiment of the invention aims to provide a method for transmitting control information and communication equipment, which are used for enabling network equipment and user equipment to understand the size of the control information consistently, and avoiding user blind detection so as to improve service reliability.

In a first aspect, a method for transmitting control information is provided, the method being performed by a communication device, and the method comprising: transmitting target control information, the target control information comprising: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

In a second aspect, a communication device is provided, comprising: a transmission module, configured to transmit target control information, where the target control information includes: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

In a third aspect, a communication device is provided, including: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, performs the steps of the method of transmitting control information according to the first aspect.

In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the method of transmitting control information according to the first aspect.

In the method and the communication device for transmitting control information provided in the embodiments of the present invention, target control information is transmitted, where the target control information includes: and the bit number of the target control information is related to the bit number of the resource indication information, so that the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, thereby improving the service reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic flow chart diagram of a method of transmitting control information according to one embodiment of the present invention;

FIG. 2 is a schematic flow chart diagram of a method of transmitting control information in accordance with one embodiment of the present invention;

fig. 3a-3d are schematic diagrams of DCI formats according to one embodiment of the present invention;

fig. 4a-4f are schematic diagrams of DCI formats in accordance with an embodiment of the present invention;

FIGS. 5a-5d are schematic diagrams of DCI formats in an embodiment according to the present invention;

fig. 6a-6d are schematic diagrams of DCI formats in an embodiment in accordance with the invention;

fig. 7a-7b are schematic diagrams of DCI formats in an embodiment in accordance with the invention;

FIG. 8 is a schematic flow chart diagram of a method of transmitting control information in accordance with one embodiment of the present invention;

FIGS. 9a-9d are schematic diagrams of a DCI format in an embodiment in accordance with the present invention;

fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

fig. 11 is a schematic configuration diagram of a terminal device according to another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a network device according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. "and/or" in various embodiments of the present specification means at least one of front and rear.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Long Term Evolution (LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD) System, a Universal Mobile Telecommunications System (UMTS) or Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G System, or a New Radio (NR) System, an LTE sidelink (sidelink) System or an NR sidelink System or a subsequent Evolution communication System.

In the embodiment of the present invention, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a User Equipment (UE), a handset (handset), a portable device (portable Equipment), a vehicle (vehicle), etc., and the Terminal device may communicate with one or more core networks through a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the Terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile apparatus.

In the embodiment of the present invention, the network device is a device deployed in a radio access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of devices having a base station function may differ. For example, in an LTE network, called an Evolved node B (eNB or eNodeB), in a third Generation (3G) network, called a node B (node B), or a network device in a later Evolved communication system, etc., although the words are not limiting.

As shown in fig. 1, one embodiment of the present invention provides a method 100 of transmitting control information, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s102: transmitting target control information, the target control information comprising: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

For example, the number of bits of the target control information may be determined by the number of bits of the resource indication information and the number of bits of other indication information in the target control information. Other indication information in the target control information is: and indicating information other than the resource indicating information in the target control information.

In one implementation, in the physical downlink DL, the target control information may be DCI, and in the case where the communication device is a network device, this step may be to transmit the target control information for the network device, and in the case where the communication device is a terminal device, this step may be to receive the target control information for the terminal device.

In another implementation, in the SL, the target Control Information may be Sidelink Control Information (SCI) and/or SL DCI, and the communication devices are all terminal devices, a first terminal device in the SL transmits the target Control Information, and a second terminal device receives the target Control Information.

In the method for transmitting control information provided in the embodiments of the present invention, target control information is transmitted, where the target control information includes: and the bit number of the target control information is related to the bit number of the resource indication information, so that the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, thereby improving the service reliability.

As shown in fig. 2, one embodiment of the present invention provides a method 200 of transmitting control information, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s202: transmitting target control information, the target control information comprising: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

This step may adopt a similar description to step S102 in the embodiment of fig. 1, and repeated descriptions are omitted.

In one implementation, the resource indication information includes: time Resource Indication (TRI) information and/or Frequency Resource Indication (FRI) information, the number of bits of which may be one of the first number of bits Size1, the second number of bits Size2, or the third number of bits Size 3.

The description is divided into three implementation manners according to the bit number of the resource indication information.

In a first implementation manner, the bit number of the resource indication information is Size1, and Size1 may include three implementation manners, where Size1 is a first maximum bit number X corresponding to the TRI information; second, Size1 is the second maximum bit number Y corresponding to the FRI information, and third, Size1 is the sum of the first maximum bit number X and the second maximum bit number Y, that is, Size1 is the sum of the first maximum bit number X corresponding to the TRI information and the second maximum bit number Y corresponding to the FRI information.

Wherein, X is the maximum bit number occupied by the TRI domain determined under various configurations of each resource pool, and Y is the maximum bit number occupied by the FRI domain determined under various configurations of each resource pool. Specifically, in an implementation manner, the resource pool may be a transmission resource pool, X is a maximum bit number occupied by the TRI domain determined under various configurations of each transmission resource pool, and Y is a maximum bit number occupied by the FRI domain determined under various configurations of each transmission resource pool.

Alternatively, the various configurations of the resource pool include both the configuration in which the resource pool actually exists and other possible configurations in addition to the actually existing configuration.

Correspondingly, when the bit number of the resource indication information is Size1, the bit number of the target control information is: the sum of the Size1 and the bit number T of other indication information in the target control information, i.e., the bit number of the target control information is at least one of (X + T), (Y + T), and (X + Y + T). Therefore, the size of the target control information is related to the configuration of the resource pool, the size of the target control information can be determined based on the configuration of the resource pool, the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, so that the service reliability is improved.

In this case, even if the number of bits X, Y, or (X + Y) actually used for the resource indication information is smaller than Size1, the data field with the length of Size1 is occupied to ensure that the number of bits of the target control information is at least one of (X + T), (Y + T), and (X + Y + T), that is, the Size of the target control information is related to the configuration of the resource pool, and the Size of the target control information can be determined based on the configuration of the resource pool, so that the Size of the control information is consistent with the understanding of the network device and the user device, thereby avoiding user blind detection and improving service reliability.

In one implementation, as shown in fig. 3a to 3d, the number of bits corresponding to the TRI information is the first maximum number of bits X, and the number of bits corresponding to the FRI information is Y. Specifically, although the number of bits actually used for the TRI information is X, the number of bits occupied by the TRI information is a first maximum number of bits X; although the number of bits actually used for the FRI information is Y, the number of bits occupied by the FRI information is the second maximum number of bits Y.

Alternatively, the TRI information may be located before the FRI information, the bit number x actually used for the TRI information may occupy the first x bits in the TRI domain, or may occupy the last x bits in the TRI domain, and the bit number y actually used for the FRI information may occupy the first y bits in the FRI domain, or may occupy the last y bits in the FRI domain, as shown in fig. 3a to 3 b. Alternatively, the TRI information may be located behind the FRI information, the bit number x actually used for the TRI information may occupy the first x bits in the TRI domain, or may occupy the last x bits in the TRI domain, and the bit number y actually used for the FRI information may occupy the first y bits in the FRI domain, or may occupy the last y bits in the FRI domain, as shown in fig. 3c to 3 d.

In one implementation manner, the target control information further includes: the redundant bits, i.e. the unoccupied bits in the TRI or FRI field shown in fig. 3a-3d, may be redundant bits.

In one implementation manner, the target control information further includes: redundant bits. The redundant bit n is determined by the bit number of the target control information, the bit number (x + y) actually used for the resource indication information, and the bit number of other indication information T in the target control information.

Specifically, in the case that the bit number of the resource indication information is Size1, the bit number of the target control information is X + Y + T, n is the bit number of the target control information- (X + Y) -T ═ X + Y + T) - (X + Y) -T ═ X + Y-X-Y ═ X-X) + (Y-Y), that is, the unoccupied bits in the TRI field or FRI field shown in fig. 3a to 3d may be redundant bits, and 0 or other padding bits may be padded in the redundant bits. In this embodiment, the example is described with the bit number of the target control information being X + Y + T when the bit number of the resource indication information is Size1, and it should be understood by those skilled in the art that the redundant bit n can be determined by the same method as in this embodiment when the bit number of the target control information is at least one of (X + T), (Y + T), and (X + Y + T).

Alternatively, the TRI information may precede the FRI information, the redundant bit n1 in the TRI domain may occupy the first n1 bits in the TRI domain, or may occupy the last n1 bits in the TRI domain, and the redundant bit n2 in the FRI domain may occupy the first n 2bits in the FRI domain, or may occupy the last n 2bits in the FRI domain, as shown by the open white positions in fig. 3a-3 b.

Alternatively, the TRI information may be located behind the FRI information, the redundant bit n1 in the TRI domain may occupy the first n1 bits in the TRI domain, or may occupy the last n1 bits in the TRI domain, and the redundant bit n2 in the FRI domain may occupy the first n 2bits in the FRI domain, or may occupy the last n 2bits in the FRI domain, as shown by the open white positions in fig. 3c-3 d.

The following is a schematic illustration of an exampleIt should be noted that the specific numerical values in the examples are only for convenience of understanding and should not be construed as specifically limiting the scope of the present invention. The maximum bit number occupied by the FRI domain is determined according to the number of sub-channels contained in one resource pool, and the maximum bit number occupied by the FRI domain is selected as

Rounded-up or rounded-down values, e.g.

The maximum bit number occupied by the TRI domain is 9bits, wherein S is the sub-channel number contained in one resource pool, and the maximum value is 27. Assuming that the sub-channel number is 27, Size1 is 13bit +9 bit.

In the case where N _ max is 2, the number of bits actually used for the FRI information

The bit number of 5bits (bit) actually used for the TRI information corresponding to the corresponding resource indication information can be divided into four cases as shown in fig. 4a-4d, wherein the upper 9bits or the lower 9bits in FRI are actually used to indicate the frequency domain resource indication information, and the upper 5bits or the lower 5bits in TRI are actually used to indicate the time domain resource indication information. The blank field shown in the figure may be filled with 0 for the redundant bits.

Number of bits actually used for FRI information in case that N _ max is 3

The bit number 9bit actually used for the TRI information corresponds to the corresponding resource indication information, which can be divided into two cases as shown in fig. 4e-4 f.

In a second implementation, the number of bits of the resource indication information is Size 2. Size2 is the largest one F of the sum of the number of bits of the time domain resource indication information and the frequency domain resource indication information that have a correspondence relationship with each other in various configurations of resource pools.

The bit numbers occupied by the FRI and the TRI in the control information are determined according to the number of sub-channels included in one resource pool, in the configuration of each resource pool, the FRI and the TRI can be considered to have a corresponding relationship, and the bit numbers occupied by the FRI and the TRI in the control information are as follows, taking the mode 1 and the mode 2 as an example, and the time-frequency resource indication in the DCI is explained:

when N _ max is 2, the number of bits occupied by the FRI field is

Rounded-up or rounded-down values, e.g. of

Bit, corresponding to TRI of 5 bits.

When N _ max is 3, the number of bits occupied by the FRI field is

Rounded-up or rounded-down values, e.g. of

Bit, corresponding to a TRI of 9 bits.

Based on this, the largest one of the sums of the bit numbers of the TRI information and the FRI information having the correspondence relationship is selected under various configurations of the resource pools. For example, in

And

the larger of the two is selected as the F value, and Size2 is F.

When the bit number of the resource indication information is Size2, the bit number of the target control information is the sum of the Size2 and the bit number T of other indication information in the target control information, that is, the bit number of the target control information is (F + T). Therefore, the size of the target control information is related to the configuration of the resource pool, the size of the target control information can be determined based on the configuration of the resource pool, the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, so that the service reliability is improved.

In this case, even if the number of bits (x + y) actually used for the resource indication information is smaller than Size2, the Size of the target control information is made to be related to the configuration of the resource pool by occupying the data field of Size2 to ensure that the number of bits of the target control information is (F + T), so that the Size of the control information is understood to be consistent by the network device and the user device, thereby avoiding user blind detection and improving service reliability.

As shown in fig. 5a to 5d, the resource indication information may occupy the first (x + y) bit of the F bit, or may occupy the last (x + y) bit of the F bit, and the TRI information may be located before the FRI information, or may be located after the FRI information.

In one implementation manner, the target control information further includes: the redundant bits, i.e. the unoccupied bits in the TRI or FRI field shown in fig. 5a-5d, may be redundant bits.

In one implementation manner, the target control information further includes: redundant bits. The redundant bit n is determined by the bit number of the target control information, i.e., (F + T), the bit number (x + y) actually used for the resource indication information, and the bit number of the other indication information T in the target control information.

Specifically, when the number of bits of the resource indication information is Size2, the redundant bit n is F + T- (x + y) F-x-y. The redundant bit n may occupy the first n bits of the F bits or occupy the last n bits of the F bits.

The following is a schematic illustration of an example, and specific numerical values in the example are only for convenience of understanding and should not be construed as specifically limiting the scope of the present invention.

Considering all the cases of different resource pool configurations, 4 cases are obtained in total, where F is 20 bits, the actual FRI bit number for FRI information is 9bits, the actual TRI bit number for TRI information is 5bits, and the blank field shown in the figure is filled with 0, as shown in fig. 6a to 6d, where the maximum of the sum of the TRI information and the FRI information bit numbers having a correspondence relationship is obtained.

In a third implementation, the number of bits of the resource indication information is Size 3. Size3 is the number of bits actually used for the resource indication information, and may include, for example: the sum of the number of bits x actually used for the time domain resource indication information and the number of bits y actually used for the frequency domain resource indication information, i.e., Size3 ═ x + y.

In the case where the number of bits of the resource indication information is Size3, the number of bits of the target control information may be any one of three lengths. The first length: is the sum of Size1 and T, i.e., at least one of (X + T), (Y + T), and (X + Y + T); a second length: is the sum of Size2 and T, namely F + T; a third length: is a preset value S; the preset value S is greater than or equal to the sum of the number of bits (x + y) actually used for the resource indication information and the number of bits of other indication information T in the target control information. Since there are three possible implementations of Size1, the above three lengths can also be understood to correspond to 5 possible lengths: i.e., at least one of (X + T), (Y + T), (F + T), S, and (X + Y + T). In a word, the size of the target control information is related to the configuration of the resource pool, and the size of the target control information can be determined based on the configuration of the resource pool, so that the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, thereby improving the service reliability.

In one implementation manner, the target control information further includes: redundant bits. Redundant bits are filled in the target control information to make the number of bits of the target control information one of the three lengths. The number of bits n of the redundant bits is determined by the target control information, the number of bits (x + y) actually used for the resource indication information, and the number of bits T of other indication information in the target control information.

When the bit number of the target control information is the sum of Size1 and T, that is, X + Y + T, the number of redundant bits n ═ X + Y + T) - (X + Y) -T ═ X + Y) - (X + Y). In this embodiment, the example is described with the bit number of the target control information being X + Y + T when the bit number of the resource indication information is Size1, and it should be understood by those skilled in the art that the redundant bit n can be determined by the same method as in this embodiment when the bit number of the target control information is at least one of (X + T), (Y + T), and (X + Y + T).

When the number of bits of the target control information is the sum of Size2 and T, i.e., F + T, the number of bits n of the redundant bits is F + T- (x + y) -T ═ F- (x + y).

And when the bit number of the target control information is a preset value S, the bit number n of the redundant bit is S- (x + y) -T.

In one implementation, the redundancy bits may be padded before or after the resource indication information, and the redundancy bits may be padded to 0.

The following is a schematic illustration of an example, and specific numerical values in the example are only for convenience of understanding and should not be construed as specifically limiting the scope of the present invention. The specific numerical values in the examples are merely for convenience of understanding and should not be construed as specifically limiting the scope of the invention. For example, if the number of bits y actually used for the frequency domain resource indication information in the FRI is 9bits, and the number of bits x actually used for the time domain resource indication information in the TRI is 5bits, x + y is 9bits + 5bits is 14 bits.

In an implementation manner, the maximum bit numbers X and Y respectively occupied by the FRI domain and the TRI domain are obtained by considering all the conditions under different resource pool configurations, at this time, X + Y is 22bits, other indication domains T of the control information occupy 24 bits in total, the total length of the control information is 46 bits, and 8 bits in the control information need to be filled to 0. The 8 bits padded with 0 may be located in the first 8 bits or the last 8 bits of the 46 bits of the total length of the control information, as shown in fig. 7a-7b, for example.

In another implementation, all the conditions under different resource pool configurations are considered, and the largest F in the sum of the bit numbers of the TRI information and the FRI information having a correspondence is obtained, for example, F is 22bits, the other indication fields T of the control information occupy 24 bits in total, and the total length of the control information is 46 bits, then 8 bits in the control information needs to be filled with 0. The 8 bits padded with 0 may be located in the first 8 bits or the last 8 bits of the 46 bits of the total length of the control information, as shown in fig. 7a-7b, for example.

In another implementation manner, the total length of the control signaling is made to be 46 bits, and other indication fields T of the control information occupy 24 bits altogether, so that 8 bits at the end of the control signaling need to be filled with 0. The 8 bits padded with 0 may be located in the first 8 bits or the last 8 bits of the 46 bits of the total length of the control information, as shown in fig. 7a-7b, for example.

For example, the number of subcarriers in each resource pool is fixed to 27, the maximum bit number occupied by the FRI field is determined according to the number of subchannels included in one resource pool, and in the case where the bit number of the resource indication information in the first implementation is Size1, the maximum bit number occupied by the selected FRI field is

Rounded-up or rounded-down values, e.g.

The maximum bit number occupied by the TRI domain is 9bits, where S is the sub-channel number contained in one resource pool, and Size1 is 13bits +9 bits.

The time domain resource indication occupies 5bits, and corresponding to the corresponding resource indication information, there are four cases as shown in fig. 4a-4d, wherein the upper 9bits or the lower 9bits in FRI are used to indicate the number of bits actually used for the frequency domain resource indication information, and the upper 5bits or the lower 5bits in TRI are used to indicate the number of bits actually used for the time domain resource indication information. The blank field shown in the figure may be filled with 0 for the redundant bits.

Number of bits actually used for FRI information in case that N _ max is 3

The number of subcarriers in each resource pool is fixed to 27, and when the bit number of the resource indication information is Size2 in the second implementation, the maximum F among the sum of the bit numbers of the TRI information and the FRI information having a correspondence relationship is 22bits, the actual FRI bit number actually used for the FRI information is 9bits, the actual TRI bit number actually used for the TRI information is 5bits, and the blank field shown in the figure is filled with 0, which is shown in fig. 6a to 6 d.

The number of subcarriers in each resource pool is fixed to 27, and in the third implementation, the number of bits of the resource indication information is Size 3. The bit number y actually used for the frequency domain resource indication information occupies 9bits, the bit number x actually used for the time domain resource indication information occupies 5bits, and x + y is 9bits + 5bits is 14 bits.

In an implementation manner, maximum bit numbers X and Y occupied by the FRI field and the TRI field respectively are obtained, at this time, X + Y is 22bits, other indication fields T of the control information occupy 24 bits altogether, the total length of the control information is made to be 46 bits, and then 8 bits in the control information need to be filled to be 0. The 8 bits padded with 0 may be located in the first 8 bits or the last 8 bits of the 46 bits of the total length of the control information, as shown in fig. 7a-7b, for example.

In another implementation, the largest F of the sums of the bit numbers of the TRI information and the FRI information having the correspondence is obtained, for example, F is 22bits, the other indication fields T of the control information occupy 24 bits in total, and if the total length of the control information is 46 bits, 8 bits in the control information needs to be filled with 0. The 8 bits padded with 0 may be located in the first 8 bits or the last 8 bits of the 46 bits of the total length of the control information, as shown in fig. 7a-7b, for example.

In the method for transmitting control information provided in the embodiment of the present invention, the bit number of the target control information is one of the following values: the sum of the first bit number and the bit number of other indication information in the target control information; the sum of the second bit number and the bit numbers of other indication information in the target control information; and the preset value is greater than or equal to the sum of the number of bits actually used for the resource indication information and the number of bits of other indication information in the target control information, so that the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, thereby improving the service reliability.

The method for transmitting control information provided by the embodiment of the invention further comprises the following steps that: redundant bits; the number of bits of the redundant bits is determined by the number of bits of the target control information, the number of bits actually used for the resource indication information, and the number of bits of other indication information in the target control information, so that the network equipment and the user equipment can understand the size of the control information consistently, and the user blind detection is avoided, thereby improving the service reliability.

As shown in fig. 8, one embodiment of the present invention provides a method 800 of transmitting control information, which may be performed by a communication device comprising: terminal device and/or network device, in other words, the method may be performed by software or hardware installed in the terminal device and/or network device, the method comprising the steps of:

s802: transmitting target control information, the target control information comprising: the number of bits of the target control information is related to the number of bits of the resource indication information, the resource pool indication information is used for indicating a scheduled target resource pool, and the configuration of the target resource pool is used for determining the number of bits of the resource indication information.

This step may be similar to the step S102 in the embodiment of fig. 1 or the step S202 in the embodiment of fig. 2, and repeated descriptions are omitted here.

In one implementation, the resource pool indication information is at least one of a target resource pool identifier, time offset information (time offset), and a sidelink configured grant identifier. The target resource pool identifier may be a target resource pool ID, for example, DCI carries an a bit resource pool ID, and the UE acquires resource pool information according to the ID. the time offset is a time domain interval between the control information and the scheduled first transmission, and the resource corresponding to the time offset is a target resource determined by performing an offset corresponding to the time offset on the basis of the resource corresponding to the control information. A sidelink configurable grant identifies, for example, a configurable grant id, or a sidelink configurable grant index.

In an implementation manner, when the resource pool indication information is a target resource pool identifier, the bit number of the resource indication information is determined according to the configuration of a target resource pool corresponding to the target resource pool identifier.

Optionally, the resource scheduled by the DCI and/or the resource pool (the associated resource pool) where the scheduled resource is located may be determined according to the resource pool indication information. Similarly, when the resource pool indication information carried by the DCI is the target resource pool identifier, the resource pool where the DCI scheduled resource is located is the resource pool corresponding to the target resource pool identifier, and the DCI scheduled resource is the resource in the resource pool.

For example, the first SL transmission scheduled by the DCI is not earlier in the resource pool corresponding to the target resource pool identification

The first sidelink slot.

The slot of the first sidelink transmission scheduled by the DCI is the first SL slot of the corresponding resource pool indicated by the DCI, and the starting time of the first SL slot is not earlier than that of the corresponding resource pool indicated by the DCI

Wherein, T_DLIs the start time, T, of the downlink slot carrying the corresponding DCI_TAIs the timing advance, K_SLIs the slot offset, T, between the slot DCI and the first sidelink transmission scheduled by the DCI_cT as defined in 38.211_slotIs the SL slot duration. (The slot of The first received transmission scheduled by The DCI is The first SL slot of The correcting resource addressed by The DCI that starts not earlier than

)whereT_DLis starting time of the downlink slot carrying the corresponding DCI，T_TA is the timing advance value and K_SL is the slot offset between the slot DCI and the first sidelink transmission scheduled by DCI，T_cis as defined in 38.211，and T_slot is the SL slot duration.)

In another implementation manner, when the resource pool indication information is the time domain offset information, the bit number of the resource indication information is determined according to the configuration of the target resource pool where the resource corresponding to the time domain offset information is located.

When the resource pool indication information carried by the DCI is time offset information (time offset), the resource pool where the resource scheduled by the DCI is located is a resource pool corresponding to the time offset information, specifically, the resource pool where the time domain resource is located determined based on the time offset information. The resource scheduled by the DCI is the resource in the resource pool.

For example, the first SL transmission scheduled by the DCI is not earlier than the resource pool corresponding to the time domain offset information

The first sidelink slot.

For example, the DCI carries the B bit time offset information, and the UE calculates correct transmission resource information, such as slot information, according to the time domain offset information, determines a transmission resource based on the transmission resource information, and obtains information of a resource pool where the transmission resource is located. For example, if the DCI carries 3-bit time offset information, the current transmission slot is slot5, and the time offset indicates an offset of 4 slots, the correct transmission slot is slot5+4, that is, slot 9. According to the configuration or pre-configuration of the base station, if slot 9 belongs to resource pool 1, the ID of the resource pool corresponding to the scheduling may be obtained as 1, so as to obtain the resource pool information.

In another implementation manner, when the resource pool indication information is the sidelink configuration authorization identifier, the bit number of the resource indication information is determined according to the configuration of the target resource pool corresponding to the sidelink configuration authorization identifier.

When the resource pool indication information carried by the DCI is a sidelink configured grant identifier, the resource pool where the DCI scheduled resource is located is the resource pool corresponding to the sidelink configured grant identifier, and the DCI scheduled resource is the resource in the resource pool.

For example, the first SL transmission scheduled by DCI is not earlier in the resource pool corresponding to the sidelink configured grant identification

The first sidelink slot.

For example, the DCI carries a CG index, and the UE determines a corresponding resource pool according to the CG index (or referred to as CG id). For example, CG1 is configured in resource pool 2, and if DCI is received and the CG index indicated by the DCI is 1, it is determined that the corresponding target resource pool is resource pool 2, thereby obtaining target resource pool information.

Since the SL configured grant id is associated with the resource pool, the user can determine the corresponding resource pool id by obtaining the SL configured grant id, so that the resource overhead can be derived according to the number of subchannels and the N _ max value of the resource pool.

Specifically, the determining the bit number of the resource indication information includes: and determining the bit number of the resource indication information according to the number of the sub-channels and/or the maximum resource number N _ max of the target resource pool.

For example, the user calculates the overhead required by Time Domain Resource Allocation (TDRA) for each Resource pool according to the number S and N _ max of subchannels corresponding to the Resource pool, selects the maximum required bit number as the bit number for indicating FDRA in DCI, the second maximum bit number corresponding to the frequency Domain Resource indication information, and the bit number for indicating FDRA as the number of bits for indicating FDRA

Rounded up or rounded down values,for example, in the DCI

Indicating the FDRA.

Specifically, one implementation is to calculate the overhead required by the frequency domain FDRA of each resource pool, select 13bits from the overhead, obtain DCI carrying time offset, obtain a resource pool ID based on the time offset, and determine that the FDRA of the resource pool actually requires 9bits, that is, the number of bits actually used for the resource indication information is 9bits, according to the configuration of the resource pool, such as the number of sub-channels and the N _ max value, so that the resource indication information occupies 13bits, and the upper 9bits or the lower 9bits of the 13bits are actually used for indicating the FDRA.

The user obtains the overhead required by each resource pool TDRA according to the N _ max value corresponding to the resource pool, and selects the maximum bit number as the bit number for indicating the TDRA in the DCI, that is, the first bit number is the first maximum bit number corresponding to the time domain resource indication information, for example, it is determined that 9bits in the DCI are used for indicating the TDRA. Specifically, one implementation is that the maximum value is 9bits, DCI is acquired, the DCI carries time offset, a user acquires a resource pool ID based on the time offset, and determines that the TDRA of the resource pool actually requires 5bits according to the configuration of the resource pool, such as an N _ max value, that is, the number of bits actually used for the resource indication information is 5bits, so that the resource indication information occupies 9bits, and the higher 5bits or the lower 5bits of the 9bits are actually used for indicating the TDRA.

In an implementation manner, the first control information may be control information used for sidelink dynamic scheduling or scrambled by a secondary link radio network temporary identity SL-RNTI, and in a case that the target control information is the first control information, the resource pool indication information is the target resource pool identity. The resource pool indication information carried by the target control information is a resource pool ID, and optionally, the resource pool ID occupies 4 bits.

The second control information may be used for activation or deactivation of a configuration grant (Configured grant), or for Scheduling a retransmission of a transmission on the Configured grant, or scrambled by a secondary link configuration Scheduling RNTI (SL-Configured Scheduling RNTI). And if the target control information is second control information, the resource pool indication information is a configured grant id, and optionally, the second control information carries the configured grant id and/or an activation/deactivation instruction.

Alternatively, the configured grant id occupies 3bits, and the activation/deactivation command occupies 1 bit. One implementation is to reinterpret the 4-bit resource pool ID field, with the lower 3bits representing the configured grant ID and the upper 1bit representing the activation or deactivation command, or vice versa, with the upper 3bits representing the configured grant ID and the lower 1bit representing the activation or deactivation command.

One possible implementation is: activating if the activation/deactivation indication is 1; the activation/deactivation indication is 0, then deactivation is performed. Or conversely, if the activation/deactivation indication is 0, then activating, and if the activation/deactivation indication is 1, then deactivating.

Specific forms may be as follows:

for example as shown in table 1:

bit field (bit field)	Activation/deactivation instruction
		0	Deactivation
1	Activation

If the bit is set to 0, the corresponding configured grant is deactivated.

If the bit is set to 1, the corresponding configured grant is activated.

(If the bit is set to 0,the corresponding SPS configuration is released If the bit is set to 1,the corresponding SPS configuration is activated.)

For example, as shown in table 2:

bit field (bit field)	Activation/deactivation instruction
		1	Deactivation
0	Activation

If the bit is set to 1, the corresponding configured grant is deactivated.

If the bit is set to 0, the corresponding configured grant is activated.

(If the bit is set to 0,the corresponding SPS configuration is released；If the bit is set to 1,the corresponding SPS configuration is activated.)

Since the configured grant id is associated with the resource pool, the user can determine the corresponding resource pool id by obtaining the configured grant id, so that the resource overhead can be derived according to the number of sub-channels and the N _ max value of the resource pool. In one embodiment, the second control signaling further carries a configured grant ID and/or an activation/deactivation command on the basis of carrying the resource pool ID and/or the time domain offset information.

Wherein the field specifies a fixed size

The following information is transmitted through DCI format 3_0, CRC is scrambled by SL-RNTI or SL-CS-RNTI: time interval, which is the time domain offset indicated by the x bits defined by the higher layer.

HARQ process ID, which may be indicated by ybits.

A new data indication, which may be indicated by a 1 bit.

Lowest index of subchannel allocation for initial transmission, which index may be indicated by a predetermined number of bits, e.g., the index by

And (4) indicating.

The SCI format is a 0-1 field.

And allocating frequency domain resources, wherein the frequency domain resources are allocated to the frequency domain resources indicated by 13 bits.

And allocating time domain resources, wherein the time domain resources are allocated to the time domain resources indicated by 9 bits.

PSFCH to HARQ feedback timing indicator, which may be indicated by 3 bits.

A PUCCH resource indicator, which may be indicated by 3 bits.

Configuring an index, wherein if the UE is not configured to monitor DCI format 3_0 by using CRC scrambled by SL-CS-RNTI, the configured index is 0 bit; otherwise the configuration index is z bits, where z may be a value agreed upon by the protocol or a value determined based on a calculation formula agreed upon by the protocol. This field is reserved as DCI format 3_0 using CRC scrambled by SL-RNTI if the UE is configured to listen to DCI format 3_0 using CRC scrambled by SL-CS-RNTI.

(Field Description-fixed size

The following information is transmitted by means of the DCI format 3_0 with CRC scrambled by SL-RNTI or SL-CS-RNTI:

-Time gap–[x]bits determined by higher layer to indicate time offset information.

-HARQ process ID–[y]bits

-New data indicator–1bit

-Lowest index of the subchannel allocation to the initial transmission-

-SCI format 0-1fields:

-Frequency resource assignment–13bits to indicate frequency resource.

-Time resource assignment–9bits to indicate time resource.

-PSFCH-to-HARQ feedback timing indicator–3bits.

-PUCCH resource indicator–3bits.

-Configuration index–0bit if the UE is not configured to monitor DCI format 3_0with CRC scrambled by SL-CS-RNTI；otherwise[z]bits.If the UE is configured to monitor DCI format 3_0with CRC scrambled by SL-CS-RNTI,this field is reserved for DCI format 3_0with CRC scrambled by SL-RNTI.)

For another example, the user acquires DCI, the DCI carries time offset, the user acquires a resource pool ID based on the time offset, and according to the configuration of the resource pool, such as the number of subchannels and the N _ max value: for example N _ max is 2,

for FDRA, 5bit for TDRA; for example N _ max is 3,

for FDRA, 9bit for TDRA. One specific possibility is that S is 27 and Nmax is 2, thus determining the FDRA actual needs of the resource pool

TDRA actually requires 5 bits.

Where the field specifies a non-fixed size.

The following information is transmitted through DCI format 3_0, CRC is scrambled by SL-RNTI or SL-CS-RNTI:

time interval, which is the time domain offset indicated by the x bits defined by the higher layer.

HARQ process ID, which may be indicated by y bits.

A new data indication, which may be indicated by a 1 bit.

And (4) indicating.

The SCI format is a 0-1 field.

In case that N _ max is 2, the frequency domain resource allocation is made by

The indicated frequency domain resources.

Time domain resource allocation, which is a time domain resource indicated by 5 bits.

In case that N _ max is 3, the frequency domain resource allocation is made by

The indicated frequency domain resources.

Frequency domain resource allocation, time domain resource allocation is time domain resource indicated by 9 bits.

PSFCH to HARQ feedback timing indicator, which may be indicated by 3 bits.

A PUCCH resource indicator, which may be indicated by 3 bits.

(Field Description–unfixed size The following information is transmitted by means of the DCI format 3_0with CRC scrambled by SL-RNTI or SL-CS-RNTI:

-Time gap–x bits determined by higher layer to indicate time offset information.

-HARQ process ID–[y]bits

-New data indicator–1bit

-Lowest index of the subchannel allocation to the initial transmission-

-SCI format 0-1fields:

-N_max＝2

-Frequency resource assignment–

bits to indicate frequency resource.

-Time resource assignment–5bits to indicate time resource.

-N_max＝3

-Frequency resource assignment–

bits to indicate frequency resource.

-Time resource assignment–9bits to indicate time resource.

-PSFCH-to-HARQ feedback timing indicator–3bits.

-PUCCH resource indicator–3bits.

-Configuration index–0bit if the UE is not configured to monitor DCI format3_0with CRC scrambled by SL-CS-RNTI；otherwise[z]bits.If the UE is configured to monitor DCI format 3_0with CRC scrambled by SL-CS-RNTI,this field is reserved for DCI format 3_0with CRC scrambled by SL-RNTI.)

For another example, the user calculates the required overhead of each resource pool FDRA and TDRA according to the number S and N _ max of the sub-channels corresponding to the resource pool, selects the bit number with the largest sum of the required bit numbers as the bit number for indicating the resource in the DCI, for example, determines the bit number in the DCI

For use with moneyA source indication. Specifically, one implementation is that the maximum sum is 13bit +9bit, DCI is acquired, the DCI carries time offset, and the user acquires a resource pool ID based on the time offset, and determines that the FDRA of the resource pool actually needs 9bit and the TDRA actually needs 5bit according to the configuration of the resource pool, such as the number of sub-channels and the N _ max value, so that 14bit in the DCI is actually used to indicate FDRA + TDRA.

Where the field specifies a fixed size.

HARQ process ID, which may be indicated by y bits.

A new data indication, which may be indicated by a 1 bit.

And (4) indicating.

The SCI format is a 0-1 field.

And allocating time domain resources, wherein the time domain resources are allocated to time domain resources indicated by 22bits in total.

PSFCH to HARQ feedback timing indicator, which may be indicated by 3 bits.

A PUCCH resource indicator, which may be indicated by 3 bits.

(Field Description–fixed size

-HARQ process ID–[y]bits

-New data indicator–1bit

-Lowest index of the subchannel allocation to the initial transmission-

-SCI format 0-1fields:

-Time-Frequency resource assignment–22 bits in all to indicate time-frequency resource.

-PSFCH-to-HARQ feedback timing indicator–3bits.

-PUCCH resource indicator–3bits.

For another example, in this embodiment, the number of sub-channels in each resource pool is fixed to 27, and the user calculates the required overhead of FDRA in each resource pool according to the N _ max value corresponding to the resource pool, and selects the required bit number with the maximum bit number as the bit number for indicating FDRA in DCI, for example, determines the bit number in DCI

bit is used to indicate FDRA. Specifically, one implementation is that the maximum value is 13bits, DCI is acquired, the DCI carries time offset, a user acquires a resource pool ID based on the time offset, and determines that the FDRA of the resource pool actually requires 9bits according to the configuration of the resource pool, such as the number of sub-channels and the N _ max value, so that the high 9bits or the low 9bits of the 13bits are actually used to indicate the FDRA.

The user obtains the overhead required by the TDRA of each resource pool according to the N _ max value corresponding to the resource pool, and selects the maximum bit number as the bit number used for indicating the TDRA in the DCI, for example, it is determined that 9bits in the DCI are used for indicating the TDRA. Specifically, one implementation is that the maximum value is 9bits, DCI is acquired, the DCI carries time offset, a user acquires a resource pool ID based on the time offset, and according to the configuration of the resource pool, such as an N _ max value, it is determined that the TDRA of the resource pool actually requires 5bits, so that a high 5bit or a low 5bit of the 9bits is actually used to indicate the TDRA.

Where the field specifies a fixed size.

Resource pool id, which is indicated by y bits.

HARQ process ID, which may be indicated by y bits.

A new data indication, which may be indicated by a 1 bit.

And (4) indicating.

The SCI format is a 0-1 field.

PSFCH to HARQ feedback timing indicator, which may be indicated by 3 bits.

A PUCCH resource indicator, which may be indicated by 3 bits.

(Field Description–fixed size

The following information is transmitted by means of the DCI format 3_0with CRC scrambled by SL-RNTI or SL-CS-RNTI:

-Resource pool id–[y]bits.

-HARQ process ID–[y]bits

-New data indicator–1bit

-Lowest index of the subchannel allocation to the initial transmission–

-SCI format 0-1fields:

-Frequency resource assignment–13bits to indicate frequency resource.

-Time resource assignment–9bits to indicate time resource.

-PSFCH-to-HARQ feedback timing indicator–3bits.

-PUCCH resource indicator–3bits.

For another example, the number of sub-channels of each resource pool is fixed to 27, the user acquires DCI, the DCI carries time offset, the user acquires the resource pool ID based on the time offset, and according to the configuration of the resource pool, for example, the value N _ max: for example, N _ max is 2,

for FDRA, 5bit for TDRA; for example N _ max is 3,

for FDRA, 9bit for TDRA. In a specific possibility, N _ max is 2, so as to determine the FDRA actual need of the resource pool

TDRA actually requires 5 bits.

Where the field specifies a non-fixed size.

Resource pool id, which is indicated by y bits.

HARQ process ID, which may be indicated by y bits.

A new data indication, which may be indicated by a 1 bit.

And (4) indicating.

The SCI format is a 0-1 field.

In case that N _ max is 2, the frequency domain resource allocation is made by

The indicated frequency domain resources. The time domain resource allocation is the time domain resource indicated by 5 bits.

In case that N _ max is 3, the frequency domain resource allocation is made by

The indicated frequency domain resources. And allocating time domain resources, wherein the time domain resources are allocated to the time domain resources indicated by 9 bits.

PSFCH to HARQ feedback timing indicator, which may be indicated by 3 bits.

A PUCCH resource indicator, which may be indicated by 3 bits.

(Field Description–unfixed size The following information is transmitted by means of the DCI format 3_0 with CRC scrambled by SL-RNTI or SL-CS-RNTI:

-Resource pool id–[y]bits.

-HARQ process ID–[y]bits

-New data indicator–1 bit

-Lowest index of the subchannel allocation to the initial transmission-

-SCI format 0-1 fields:

-N_max＝2

-Frequency resource assignment–

bits to indicate frequency resource.

-Time resource assignment–5 bits to indicate time resource.

-N_max＝3

-Frequency resource assignment–

bits to indicate frequency resource.

-Time resource assignment–9 bits to indicate time resource.

-PSFCH-to-HARQ feedback timing indicator–3 bits.

-PUCCH resource indicator–3 bits.

-Configuration index–0 bit if the UE is not configured to monitor DCI format3_0 with CRC scrambled by SL-CS-RNTI；otherwise[z]bits.If the UE is configured to monitor DCI format 3_0 with CRC scrambled by SL-CS-RNTI,this field is reserved for DCI format 3_0 with CRC scrambled by SL-RNTI.)

For another example, the number of sub-channels in each resource pool is fixed to 27, the user calculates the overhead required by each resource pool FDRA and TDRA according to the N _ max value corresponding to the resource pool, selects the bit number with the largest sum of the required bit numbers as the bit number for indicating the resource in the DCI, for example, determines the bit number in the DCI

For resource indication. Specifically, one implementation is that the maximum sum is 13bit +9bit, DCI is acquired, the DCI carries time offset, and the user acquires a resource pool ID based on the time offset, and determines that the FDRA of the resource pool actually needs 9bit and the TDRA actually needs 5bit according to the configuration of the resource pool, such as the number of sub-channels and the N _ max value, so that 14bit in the DCI is actually used to indicate FDRA + TDRA.

Where the field specifies a fixed size.

Resource pool id, which is indicated by y bits.

HARQ process ID, which may be indicated by y bits.

A new data indication, which may be indicated by a 1 bit.

And (4) indicating.

The SCI format is a 0-1 field.

And allocating time domain resources, wherein the time domain resources are allocated to time frequency domain resources indicated by 22bits in total.

PSFCH to HARQ feedback timing indicator, which may be indicated by 3 bits.

A PUCCH resource indicator, which may be indicated by 3 bits.

(Field Description–fixed size The following information is transmitted by means of the DCI format 3_0with CRC scrambled by SL-RNTI or SL-CS-RNTI:

-Resource pool id–[y]bits.

-HARQ process ID–[y]bits

-New data indicator–1bit

-Lowest index of the subchannel allocation to the initial transmission-

-SCI format 0-1fields:

-Time-Frequency resource assignment–22bits in all to indicate time-frequency resource.

-PSFCH-to-HARQ feedback timing indicator–3bits.

-PUCCH resource indicator–3bits.

For another example, when the DCI is a DCI for scheduling a SL LTE Vehicle to an outside V2X (Vehicle to interference), or is DCI format 3_1, or is DCI 5A, if a 1-bit activation/deactivation indication is carried for activating or deactivating the SL SPS configuration, one possible implementation is: activating if the activation/deactivation indication is 1; the activation/deactivation indication is 0, then deactivation is performed. Or conversely, if the activation/deactivation indication is 0, then activating, and if the activation/deactivation indication is 1, then deactivating.

Specific forms may be as follows:

for example, as shown in table 3:

if the bit is set to 0, the corresponding SPS configuration is deactivated.

If the bit is set to 1, the corresponding SPS configuration is activated.

For example, as shown in table 4:

If the bit is set to 1, the corresponding SPS configuration is deactivated.

If the bit is set to 0, the corresponding SPS configuration is activated.

Specifically, DCI format 3_1 is used to schedule LTE-PSCCH and LTE-PSCCH in one cell.

The following information is transmitted through DCI format 3_1, with CRC scrambled by SL-L-CS-RNTI:

the SL SPS configures an index, which is indicated by 3 bits.

Activate/deactivate instruction-1 bit

If the UE is configured to monitor DCI format 3_0 and the number of information bits in DCI format 3_1 is smaller than the payload of DCI format 3_0, zero should be appended in DCI format 3_1 until the payload size is equal to DCI format 3_ 0.

(DCI format 3_1is used for scheduling of LTE PSCCH and LTE PSSCH in one cell.

The following information is transmitted by means of the DCI format 3_1 with CRC scrambled by SL-L-CS-RNTI:

-SL SPS configuration index–3bits.

-Activation/release indication–1bit.

If the UE is configured to monitor DCI format 3_0and the number of information bits in DCI format 3_1is less than the payload of DCI format 3_0,zeros shall be appended to DCI format 3_1until the payload size equals that of DCI format 3_0.)

The above explanation or table for 1bit activation/deactivation may be used for explanation of activation/deactivation domains in DCI for scheduling LTE V2X, for example, explanation of activation/deactivation domains in at least one of NR DCI for scheduling LTE V2X and LTE DCI for scheduling LTE V2X, specifically, at least one of DCI format 3-1 and DCI format 5A.

In one implementation, in the target control information, the resource pool indication information is located before or after the resource indication information. In one implementation, the time domain resource indication information is located before or after the frequency domain resource indication information.

For example, the resource pool ID/time offset may precede FRI + TRI, and FRI precedes TRI or FRI follows TRI. Accordingly, the decoding order of the UE is: and decoding from front to back, the UE firstly decodes the resource pool ID/time offset information, then finds an indication field corresponding to FRI + TRI according to the information, and then decodes the FRI + TRI information.

As another example, resource pool ID/time offset may be after FRI + TRI, and FRI before TRI or FRI after TRI. Accordingly, the decoding order of the UE is: and decoding from back to front, the UE firstly decodes the resource pool ID/time offset information, then finds an indication domain corresponding to FRI + TRI according to the information, and then decodes the FRI + TRI information.

In the case where the resource pool ID/time offset precedes FRI + TRI, the following two cases can be divided.

FRI is before TRI, at this time, the UE decodes from front to back, the UE needs to decode the resource pool ID/time offset information first, then finds the indication field corresponding to FRI + TRI according to the information, and then decodes FRI + TRI information, as shown in fig. 9 a.

After the FRI is behind the TRI, at this time, the UE decodes from front to back, the UE decodes the resource pool ID/time offset information first, finds the indication field corresponding to FRI + TRI according to the information, and then decodes the FRI + TRI information, as shown in fig. 9 b.

The case where the resource pool ID/time offset is after FRI + TRI can be divided into the following two cases.

FRI is before TRI, at this time, the UE decodes from back to front, the UE decodes the resource pool ID/time offset information first, finds the indication field corresponding to FRI + TRI according to the information, and then decodes FRI + TRI information, as shown in fig. 9 c.

After the FRI is behind the TRI, at this time, the UE decodes from back to front, the UE decodes the resource pool ID/time offset information first, finds the indication field corresponding to FRI + TRI according to the information, and then decodes the FRI + TRI information, as shown in fig. 9 d.

The method for transmitting control information provided by the embodiment of the invention further comprises the following steps that: and the resource pool indication information is used for indicating the scheduled target resource pool, so that the user can correctly understand the allocated resources, and the service reliability is improved.

In the method for transmitting control information provided in the embodiments of the present invention, the resource pool indication information is located before or after the resource indication information in the target control information, so that a user can correspondingly adopt a correct decoding order to correctly understand allocated resources, thereby improving service reliability.

Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in fig. 10, the communication apparatus 1000 includes: a transmission module 1010.

The transmission module 1010 is configured to transmit target control information, where the target control information includes: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

In some embodiments, the resource indication information includes: time domain resource indication information and/or frequency domain resource indication information, wherein the bit number of the resource indication information is one of a first bit number, a second bit number or a third bit number; the first bit number is a first maximum bit number corresponding to the time domain resource indication information; or a second maximum bit number corresponding to the frequency domain resource indication information; or the sum of the first maximum number of bits and the second maximum number of bits; the second bit number is the maximum one of the sum of the bit numbers of the time domain resource indication information and the frequency domain resource indication information with corresponding relation under various configurations of each resource pool; the third bit number is the bit number actually used for the resource indication information.

In some embodiments, the resource pool is a transmit resource pool.

In some embodiments, the number of bits of the target control information is one of the following values: the sum of the first bit number and the bit number of other indication information in the target control information; the sum of the second bit number and the bit numbers of other indication information in the target control information; and the preset value is greater than or equal to the sum of the number of bits actually used for the resource indication information and the number of bits of other indication information in the target control information.

In some embodiments, when the number of bits of the resource indication information is a first number of bits, the number of bits corresponding to the time domain resource indication information is the first maximum number of bits, and the number of bits corresponding to the frequency domain resource indication information is the second maximum number of bits.

In some embodiments, the target control information further includes: redundant bits; the number of bits of the redundant bits is determined by the number of bits of the target control information, the number of bits actually used for the resource indication information, and the number of bits of other indication information in the target control information.

In some embodiments, the target control information further includes: resource pool indication information, wherein the resource pool indication information is used for indicating a scheduled target resource pool, and the configuration of the target resource pool is used for determining the bit number of the resource indication information.

In some embodiments, the resource pool indication information is at least one of a target resource pool identifier, time domain offset information, and a sidelink configuration grant identifier.

In some embodiments, when the resource pool indication information is a target resource pool identifier, determining a bit number of the resource indication information according to a configuration of a target resource pool corresponding to the target resource pool identifier; and/or determining the bit number of the resource indication information according to the configuration of a target resource pool where the resource corresponding to the time domain offset information is located under the condition that the resource pool indication information is the time domain offset information; and/or determining the bit number of the resource indication information according to the configuration of a target resource pool corresponding to the sidelink configuration authorization identifier under the condition that the resource pool indication information is the sidelink configuration authorization identifier.

In some embodiments, the determining the bit number of the resource indication information includes: and determining the bit number of the resource indication information according to the number of the sub-channels and/or the maximum resource number N _ max of the target resource pool.

In some embodiments, in the target control information, the resource pool indication information is located before or after the resource indication information.

In some embodiments, in the case that the target control information is first control information, the resource pool indication information is the target resource pool identity, where the first control information is control information used for secondary link dynamic scheduling or scrambled by a secondary link radio network temporary identity SL-RNTI.

In some embodiments, in a case that the target control information is second control information, the resource pool indication information configures an authorization identifier for the secondary link, and/or activates or deactivates an instruction, where the second control information is: at least one of control information for activation or deactivation of a configuration grant, control information for scheduling retransmission transmitted on the configuration grant, and control information scrambled by a sidelink configuration scheduling RNTI.

In some embodiments, the first predetermined number of bits of the target resource pool domain is used to indicate the sidelink configuration authorization identifier, and/or the second predetermined number of bits of the target resource pool domain is used to indicate an activation or deactivation instruction.

In some embodiments, the resource indication information includes: time domain resource indication information and frequency domain resource indication information, wherein the time domain resource indication information is located before or after the frequency domain resource indication information.

In one implementation, the target control information includes: secondary link control information SCI and/or secondary link downlink control information SL DCI.

The terminal device 1000 according to the embodiment of the present invention may refer to the flows corresponding to the

methods

100, 200, and 800 of the embodiment of the present invention, and each unit/module and the other operations and/or functions in the terminal device 1000 are respectively for implementing the corresponding flows in the

methods

100, 200, and 800, and can achieve the same or equivalent technical effects, and for brevity, no further description is provided here.

Fig. 11 is a block diagram of a terminal device of another embodiment of the present invention. The terminal device 1100 shown in fig. 11 includes: at least one processor 1101, memory 1102, at least one network interface 1104, and a user interface 1103. The various components in end device 1100 are coupled together by a bus system 1105. It is understood that the bus system 1105 is used to enable communications among the components. The bus system 1105 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled in fig. 11 as the bus system 1105.

The user interface 1103 may include, among other things, a display, a keyboard, a pointing device (e.g., a mouse, trackball), a touch pad, or a touch screen.

It is to be understood that the memory 1102 in embodiments of the present invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1102 of the subject systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 1102 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 11021 and application programs 11022.

The operating system 11021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 11022 contains various applications such as a Media Player (Media Player), a Browser (Browser), etc. for implementing various application services. Programs that implement methods in accordance with embodiments of the invention may be included in application 11022.

In this embodiment of the present invention, the terminal device 1100 further includes: a computer program stored on the memory 1102 and executable on the processor 1101, the computer program when executed by the processor 1101 implementing the steps of the

method

100, 200, or 800 as follows.

The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 1101 or by the processor 1101. The processor 1101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1101. The Processor 1101 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102 and performs the steps of the above method in combination with the hardware thereof. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 1101, implements the steps of the embodiments of the

method

100, 200, or 800 as described above.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

The terminal device 1100 can implement each process implemented by the terminal device in the foregoing embodiments, and can achieve the same or equivalent technical effects, and details are not described here to avoid repetition.

Referring to fig. 12, fig. 12 is a structural diagram of a network device applied in the embodiment of the present invention, which can implement the details of

method embodiments

100, 200, or 800, and achieve the same effects. As shown in fig. 12, the network device 1200 includes: a processor 1201, a transceiver 1202, a memory 1203 and a bus interface, wherein:

in this embodiment of the present invention, the network device 1200 further includes: a computer program stored on the memory 1203 and executable on the processor 1201, the computer program when executed by the processor 1201 implementing the steps of the

method

100, 200, or 800.

In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits linking one or more processors, represented by the processor 1201, and memory, represented by the memory 1203. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1202 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1201 is responsible for managing a bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiments 100, 200, or 800, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method of transmitting control information, the method being performed by a communication device, the method comprising:

transmitting target control information, the target control information comprising: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

2. The method of claim 1, wherein the resource indication information comprises: time domain resource indication information and/or frequency domain resource indication information, wherein the bit number of the resource indication information is one of a first bit number, a second bit number or a third bit number;

the first bit number is a first maximum bit number corresponding to the time domain resource indication information; or the first bit number is a second maximum bit number corresponding to the frequency domain resource indication information; or the first number of bits is the sum of the first maximum number of bits and the second maximum number of bits;

the second bit number is the maximum one of the sum of the bit numbers of the time domain resource indication information and the frequency domain resource indication information with corresponding relation under various configurations of each resource pool;

the third bit number is the bit number actually used for the resource indication information.

3. The method of claim 2, wherein the resource pool is a transmit resource pool.

4. The method of claim 2, wherein the number of bits of the target control information is one of the following values:

the sum of the first bit number and the bit number of other indication information in the target control information;

the sum of the second bit number and the bit numbers of other indication information in the target control information;

and the preset value is greater than or equal to the sum of the number of bits actually used for the resource indication information and the number of bits of other indication information in the target control information.

5. The method of claim 2, wherein when the number of bits of the resource indication information is a first number of bits, the number of bits corresponding to the time domain resource indication information is the first maximum number of bits, and the number of bits corresponding to the frequency domain resource indication information is the second maximum number of bits.

6. The method of claim 2, wherein the target control information further comprises: redundant bits;

the number of bits of the redundant bits is determined by the number of bits of the target control information, the number of bits actually used for the resource indication information, and the number of bits of other indication information in the target control information.

7. The method of claim 1, wherein the target control information further comprises:

resource pool indication information, wherein the resource pool indication information is used for indicating a scheduled target resource pool, and the configuration of the target resource pool is used for determining the bit number of the resource indication information.

8. The method of claim 7, wherein the resource pool indication information is at least one of a target resource pool identity, time domain offset information, and a sidelink configuration grant identity.

9. The method according to claim 8, wherein when the resource pool indication information is a target resource pool identifier, determining a bit number of the resource indication information according to a configuration of a target resource pool corresponding to the target resource pool identifier; and/or

Under the condition that the resource pool indication information is the time domain offset information, determining the bit number of the resource indication information according to the configuration of a target resource pool where the resource corresponding to the time domain offset information is located; and/or

And under the condition that the resource pool indication information is the sidelink configuration authorization identifier, determining the bit number of the resource indication information according to the configuration of the target resource pool corresponding to the sidelink configuration authorization identifier.

10. The method of claim 9, the determining the number of bits of the resource indication information comprising:

and determining the bit number of the resource indication information according to the number of the sub-channels and/or the maximum resource number N _ max of the target resource pool.

11. The method of claim 7, wherein the resource pool indication information is located before or after the resource indication information in the target control information.

12. The method according to claim 7, wherein the resource pool indication information is the target resource pool identity in case the target control information is first control information, wherein the first control information is control information used for secondary link dynamic scheduling or scrambled by a secondary link radio network temporary identity (SL-RNTI).

13. The method according to claim 7, wherein the resource pool indication information configures an authorization identifier for the secondary link and/or an activation or deactivation instruction in case that the target control information is second control information, wherein the second control information is: at least one of control information for activation or deactivation of a configuration grant, control information for scheduling retransmission transmitted on the configuration grant, and control information scrambled by a sidelink configuration scheduling RNTI.

14. The method according to claim 13, wherein the first predetermined number of bits of the target resource pool field is used to indicate the sidelink configuration authorization identifier, and/or the second predetermined number of bits of the target resource pool field is used to indicate an activation or deactivation instruction.

15. The method of claim 9, wherein the resource indication information comprises: time domain resource indication information and frequency domain resource indication information, wherein the time domain resource indication information is located before or after the frequency domain resource indication information.

16. The method of claim 1, wherein the target control information comprises: secondary link control information SCI and/or secondary link downlink control information SL DCI.

17. A communication device, comprising:

a transmission module, configured to transmit target control information, where the target control information includes: resource indication information, the bit number of the target control information is related to the bit number of the resource indication information.

18. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of transmitting control information according to any one of claims 1 to 16.

19. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method of transmitting control information according to any one of claims 1 to 16.