CN111246579B

CN111246579B - Uplink authorization information transmission method and device

Info

Publication number: CN111246579B
Application number: CN202010028268.1A
Authority: CN
Inventors: 陈咪咪
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2023-04-14
Anticipated expiration: 2040-01-10
Also published as: CN111246579A

Abstract

The embodiment of the application discloses a method and a device for transmitting uplink authorization information, wherein the method comprises the following steps: and receiving channel state information sent by the terminal equipment, wherein the channel state information is used for indicating that a channel of the terminal equipment is idle. And if the cell identifier included in the channel state information is the same as the preset cell identifier, sending uplink authorization information to the terminal equipment. By adopting the embodiment of the application, the reliability and the resource utilization rate of the communication system can be improved.

Description

Uplink authorization information transmission method and device

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting uplink grant information.

Background

With the rapid development of wireless communication technology, cellular mobile communication technology has been extended from a licensed frequency band to an unlicensed frequency band in order to cope with the increasing communication demand for mobile data. For example, in order to extend the Fifth Generation mobile communication technology (5G), also called New Radio (NR) technology, to an Unlicensed frequency band, the third Generation Partnership project (3 rd Generation Partnership project,3 gpp) organization has passed through the 5G research project "Study on NR-based Access to Unlicensed Spectrum, or NR-U", aiming to enable NR to meet the regulatory requirements of the Unlicensed frequency band through the research of the project, and to ensure peace of co-location with other Access technologies working on the Unlicensed frequency band. In the NR-U system, after listening and then speaking (Listen Before Talk, LBT) is successful, a base station sends uplink grant information (UL grant) to a User Equipment (UE) through a downlink, and schedules resources required for uplink transmission for the UE. However, when performing LBT, the base station may not be able to sense whether other base stations near the UE side are sending messages to the UE, and therefore when sending messages, the other base stations may interfere the UE to receive messages sent by the base station, thereby causing waste of resources, and therefore how to improve reliability and resource utilization rate of the communication system becomes a problem to be solved urgently at present.

Disclosure of Invention

The embodiment of the application provides an uplink authorization information transmission method and device, which can improve the reliability and the resource utilization rate of a communication system.

In a first aspect, an embodiment of the present application provides a method for transmitting uplink grant information, where the method includes:

receiving channel state information sent by terminal equipment, wherein the channel state information is used for indicating that a channel of the terminal equipment is idle;

and if the cell identifier included in the channel state information is the same as a preset cell identifier, sending uplink authorization information to the terminal equipment.

With reference to the first aspect, in a possible implementation manner, before receiving the channel state information sent by the terminal device, the method further includes:

sending downlink control information to the terminal equipment, wherein the downlink control information is used for indicating time domain resources when the terminal equipment sends channel state information;

the receiving of the channel state information sent by the terminal device includes:

and receiving the channel state information sent by the terminal equipment on the time domain resource.

With reference to the first aspect, in a possible implementation manner, the downlink control information is carried on a group common physical downlink control channel of a group in which the terminal device is located, and the downlink control information is scrambled by a group radio network temporary identifier of the group in which the terminal device is located;

the downlink control information comprises at least two fields, wherein different fields are used for triggering different terminal devices to perform channel state measurement and indicating time domain resources when different terminal devices send channel state information.

With reference to the first aspect, in a possible implementation manner, the downlink control information is carried on a physical downlink control channel, and the downlink control information includes a frequency domain resource allocation field and a time domain resource allocation field, where the frequency domain resource allocation field is used to trigger the terminal device to perform channel state measurement, and the time domain resource allocation field is used to indicate time domain resources when the terminal device sends channel state information.

With reference to the first aspect, in a possible implementation manner, the downlink control information is carried on a physical downlink control channel, and the downlink control information is scrambled by a radio network temporary identifier, where the downlink control information scrambled by the radio network temporary identifier is used to trigger the terminal device to perform channel state measurement;

the downlink control information includes a frequency domain resource allocation field and a time domain resource allocation field, where the frequency domain resource allocation field is used to indicate a frequency domain resource occupied by the channel state information when the terminal device sends the channel state information, and the time domain resource allocation field is used to indicate a time domain resource when the terminal device sends the channel state information.

With reference to the first aspect, in one possible implementation, the method further includes:

and sending first indication information to a terminal device, wherein the first indication information is used for indicating frequency domain resources occupied by the channel state information when the terminal device sends the channel state information.

With reference to the first aspect, in a possible implementation manner, the channel state information includes a channel occupation time, and the method further includes:

and if the cell identifier included in the channel state information is different from the preset cell identifier, stopping sending the information within the channel occupying time.

With reference to the first aspect, in a possible implementation manner, the channel state information includes a preamble of the terminal device, and the preamble of the terminal device includes the cell identifier.

In a second aspect, an embodiment of the present application provides an uplink grant information transmission method, where the method includes:

sending channel state information to network equipment, wherein the channel state information is used for indicating that a channel of terminal equipment is idle, and the channel state information comprises a cell identifier;

and receiving the uplink authorization information sent by the network equipment.

With reference to the second aspect, in a possible implementation manner, before the sending the channel state information, the method further includes:

receiving downlink control information, wherein the downlink control information is used for indicating time domain resources when the terminal equipment sends channel state information;

the sending of the channel state information to the network device includes:

and transmitting the channel state information to the network equipment on the time domain resource.

With reference to the second aspect, in a possible implementation manner, the downlink control information is carried on a group common physical downlink control channel of a group in which the terminal device is located, and the downlink control information is scrambled by a group radio network temporary identifier of the group in which the terminal device is located;

the downlink control information includes at least two fields, where different fields are used to trigger different terminal devices to perform channel state measurement and indicate time domain resources when different terminal devices send channel state information.

With reference to the second aspect, in a possible implementation manner, the downlink control information is carried on a physical downlink control channel, and the downlink control information includes a frequency domain resource allocation field and a time domain resource allocation field, where the frequency domain resource allocation field is used to trigger the terminal device to perform channel state measurement, and the time domain resource allocation field is used to indicate time domain resources when the terminal device sends channel state information.

With reference to the second aspect, in a possible implementation manner, the downlink control information is carried on a physical downlink control channel, and the downlink control information is scrambled by a radio network temporary identifier, where the downlink control information scrambled by the radio network temporary identifier is used to trigger the terminal device to perform channel state measurement;

the downlink control information includes a frequency domain resource allocation field and a time domain resource allocation field, where the frequency domain resource allocation field is used to indicate a frequency domain resource occupied by the channel state information when the terminal device sends the channel state information, and the time domain resource allocation field is used to indicate a time domain resource when the terminal device sends the channel state information;

the sending of the channel state information to the network device includes:

and transmitting the channel state information to the network equipment on the time domain resources and the frequency domain resources.

With reference to the second aspect, in a possible implementation manner, the method further includes:

receiving first indication information sent by the network device, where the first indication information is used to indicate a frequency domain resource occupied by the channel state information when the terminal device sends the channel state information;

the sending of the channel state information to the network device includes:

and transmitting the channel state information to the network equipment on the frequency domain resource.

With reference to the second aspect, in a possible implementation manner, the channel state information includes a channel occupation time.

With reference to the second aspect, in a possible implementation manner, the channel state information includes a preamble of the terminal device, and the preamble of the terminal device includes the cell identifier.

In a third aspect, an apparatus is provided in an embodiment of the present application. The device may be the network device itself, or may be an element or module such as a chip inside the network device. The apparatus includes a unit configured to perform the uplink grant information transmission method provided in any one of the possible implementation manners of the first aspect, and thus can also achieve the beneficial effects (or advantages) of the uplink grant information transmission method provided in the first aspect.

In a fourth aspect, an apparatus is provided in an embodiment of the present application. The device can be the terminal device itself, and also can be an element or module such as a chip in the terminal device. The apparatus includes a unit configured to execute the uplink grant information transmission method provided in any possible implementation manner of the second aspect, and thus, the apparatus can also achieve the beneficial effects (or advantages) of the uplink grant information transmission method provided in the second aspect.

In a fifth aspect, embodiments of the present application provide an apparatus, which may be a network device itself, or an element or a module inside the network device, such as a chip. The apparatus includes a memory, a processor, and a transceiver. The processor is configured to invoke the code stored in the memory to execute the uplink grant information transmission method provided in any feasible implementation manner of the first aspect.

In a sixth aspect, the present application provides an apparatus, which may be the terminal device itself, or an element or module inside the terminal device, such as a chip. The apparatus includes a memory, a processor, and a transceiver. The processor is configured to invoke a code stored in the memory to execute the uplink grant information transmission method provided in any feasible implementation manner of the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the method for transmitting uplink grant information provided by any one of the feasible implementation manners in the first aspect is implemented, and beneficial effects (or advantages) of the method for transmitting uplink grant information provided by the first aspect can also be implemented.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores instructions, and when the instructions are executed on a computer, the uplink authorization information transmission method provided in any feasible implementation manner of the second aspect is implemented, and beneficial effects (or advantages) of the uplink authorization information transmission method provided in the second aspect can also be implemented.

In a ninth aspect, an embodiment of the present application provides a communication system, where the communication system includes the above network device and terminal device.

In the embodiment of the application, the network device receives channel state information sent by the terminal device, wherein the channel state information is used for indicating that a channel of the terminal device is idle. If the network device determines that the cell identifier included in the channel state information is the same as the preset cell identifier, the network device may send the uplink authorization information to the terminal device. By adopting the method provided by the embodiment of the application, the problems of resource waste and the like can be solved, and the reliability and the resource utilization rate of the communication system can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart of an uplink grant information transmission method according to an embodiment of the present application;

fig. 3 is another schematic flow chart of a method for transmitting uplink grant information according to an embodiment of the present application;

fig. 3a is an application scenario diagram of a GC-PDCCH carrying downlink control information according to an embodiment of the present application;

fig. 3b is an application view of a PDCCH carrying downlink control information according to an embodiment of the present application;

fig. 3c is a diagram of another application scenario in which a PDCCH is used to carry downlink control information according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an uplink grant information transmission apparatus provided in an embodiment of the present application;

fig. 5 is another schematic structural diagram of an uplink grant information transmission apparatus according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure;

fig. 7 is another schematic structural diagram of an apparatus according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all 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.

The embodiment of the application provides an uplink authorization information transmission method and device. Referring to fig. 1, fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application, and the uplink authorization information transmission method is applied to the communication system. Here, the communication system may be an NR-U system or the like, and is not limited herein. As shown in fig. 1, the communication system may include a network device and a terminal device. The network device includes, but is not limited to, a base station, and the like, which is not limited herein. The terminal device may also be referred to as a user device, where the terminal device includes, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, and the like, without limitation. Alternatively, the communication system may also be composed of a terminal device and a terminal device, which is not limited herein. For convenience of description, the embodiments of the present application take a network device and a terminal device as examples for explanation. In specific implementation, the network device receives channel state information sent by the terminal device, where the channel state information is used to indicate that a channel of the terminal device is idle. If the network device determines that the cell identifier included in the channel state information is the same as the preset cell identifier, the network device may send uplink authorization information to the terminal device. By adopting the embodiment of the application, the reliability and the resource utilization rate of the communication system can be improved.

The method and the related apparatus provided in the embodiments of the present application will be described in detail below with reference to fig. 2 to fig. 7. The method provided by the embodiment of the application can comprise data processing stages for receiving the channel state information, judging whether the cell identifier included in the channel state information is the same as the preset cell identifier, sending uplink authorization information and the like. The implementation of the above data processing stages can be seen in the following implementations shown in fig. 2 and 3.

Referring to fig. 2, fig. 2 is a flow chart of a method for transmitting uplink grant information according to an embodiment of the present application. The method provided by the embodiment of the application can comprise the following steps:

s201, the network equipment receives the channel state information sent by the terminal equipment.

In some possible embodiments, the network device may receive channel state information sent by the terminal device, where the channel state information is used to indicate that a channel of the terminal device that sent the channel state information is idle. It is understood that the channel state information includes a channel occupation time and a preamble of a terminal device that transmits the channel state information, where the preamble includes a cell identity of a cell in which the terminal device is located. Or, in a possible implementation manner, the channel state information may also directly include a cell identifier of a cell in which the terminal device that sends the channel state information is located and a channel occupying time, which is not limited herein. It is to be understood that a cell id may be used to uniquely identify a cell, where the cell id may be a physical id or a logical id of the cell, and is not limited herein.

S202, if the cell identification included in the channel state information is the same as the preset cell identification, the network equipment sends uplink authorization information to the terminal equipment.

In some possible embodiments, the network device may obtain the cell identifier included in the channel state information by parsing the channel state information sent by the terminal device. The network device compares the cell identifier included in the channel state information with a preset cell identifier, and if it is determined that the cell identifier is the same as the preset cell identifier, the network device may send uplink grant information (UL grant) to the terminal device. If the cell identifier included in the channel state information is determined to be different from the preset cell identifier, the network device stops sending information within the channel occupation time included in the channel state information, that is, keeps a silent state. It is understood that, by comparing whether the cell identifier included in the channel state information is consistent with the preset cell identifier, the network device can identify whether the terminal device sending the channel state information is the terminal device included in the cell corresponding to the network device. That is, when the cell identifier is the same as the preset cell identifier, it may be determined that the terminal device that transmits the channel state information is a terminal device included in a cell corresponding to the network device itself. Correspondingly, if the cell identifier is different from the preset cell identifier, the network device may determine that the terminal device sending the channel state information is a terminal device in another cell. It can be understood that the uplink grant information sent by the network device to the terminal device may be used to schedule transmission resources of uplink data for the terminal device.

In the embodiment of the application, the network device receives channel state information sent by the terminal device, wherein the channel state information is used for indicating that a channel of the terminal device is idle. If the cell identifier included in the channel state information is the same as the preset cell identifier, the network device may send uplink authorization information to the terminal device. By adopting the embodiment of the application, the reliability and the resource utilization rate of the communication system can be improved.

Referring to fig. 3, fig. 3 is another schematic flow chart of a method for transmitting uplink grant information according to an embodiment of the present application. As can be seen from fig. 3, the method provided in the embodiment of the present application may include the following steps:

s201, the network equipment sends downlink control information to the terminal equipment.

In some possible embodiments, the scheduling Information sent by the network device to the terminal device may be transmitted to the terminal device side through a channel carrying Downlink Control Information (DCI). That is to say, in the embodiment of the present application, the network device may send the downlink control information to the terminal device. The Downlink Control information may be carried by a Group Common Physical Downlink Control Channel (GC-PDCCH), or may also be carried by a Physical Downlink Control Channel (PDCCH), which is specifically determined according to an actual application scenario, and is not limited herein. It should be understood that the downlink control information may be used to indicate time domain resources when the terminal device transmits the channel state information, i.e., to indicate when the terminal device feeds back the channel state information.

Generally, different Radio Network Temporary Identifiers (RNTI) are configured for different services to perform scrambling, for example, a system information Radio Network Temporary Identifier (SI-RNTI) is configured for a system broadcast message, a paging channel is configured with a paging Radio Network Temporary Identifier (P-RNTI), and an uplink Random Access Radio Network Temporary Identifier (RA-RNTI) is configured for an uplink Random Access. Therefore, in the embodiment of the present application, when the downlink control information is carried on the GC-PDCCH, a Group-Radio Network Temporary Identifier (G-RNTI) may be configured for the downlink control information to perform scrambling. When the downlink control information is carried on the PDCCH, a Cell-Radio Network Temporary Identifier (C-RNTI) may be configured for the downlink control information for scrambling. Here, the group radio network temporary identifier may be a newly defined group radio network identifier, and therefore, the downlink control information scrambled based on the newly defined group radio network identifier may be used to trigger a plurality of terminal devices to perform channel state measurement. Here, the cell radio network temporary identifier may be an existing radio network temporary identifier, or may be a newly defined radio network temporary identifier, which is not limited herein. For convenience of description, in the following embodiments of the present application, an existing radio network temporary identifier is referred to as a first radio network temporary identifier for short, and a newly defined radio network identifier is referred to as a second radio network identifier for short.

It is to be understood that the general procedure for scheduling information transmission is: the network device firstly adds Cyclic Redundancy Check (CRC) to DCI corresponding to different scheduling information, and scrambles the added CRC with corresponding RNTI. Then, after the scheduling information subjected to CRC addition and RNTI scrambling is subjected to processing such as encoding, rate matching, multiplexing, modulation, and antenna mapping, the scheduling information subjected to the series of processing is finally transmitted to the terminal device side through the GC-PDCCH or PDCCH channel. In the terminal device side, the terminal device does not know whether the network device sends the scheduling information to itself, and does not know the DCI type used by the scheduling information and the specific position of DCI transmission. And the terminal equipment only knows the type of the DCI possibly adopted and the possible position of the DCI transmission if the network equipment transmits the scheduling information to the terminal equipment. Therefore, the terminal device can perform blind detection in the search space, that is, demodulate each possible DCI type and possible position, and descramble the CRC with the corresponding RNTI to obtain correct DCI, so as to resolve the corresponding scheduling information.

In one possible implementation, when downlink control information is carried on the GC-PDCCH of the group in which the terminal device is located, a new DCI type (i.e., new DCI _ format) and a new RNTI may be defined. Here, the new RNTI is a kind of group radio network temporary identifier, and the size of the new DCI _ format may be consistent with that of the existing DCI _ format, for example, the size of the new DCI _ format may be 126 bits. It should be understood that the new DCI _ format may be scrambled using the new RNTI, thereby indicating that the new DCI _ format is used to trigger the terminal device to feed back the channel state information. It should be understood that when downlink control information is carried by the GC-PDCCH, a plurality of terminal devices included in the whole group can monitor the downlink control information and can resolve corresponding scheduling information according to the new RNTI. Therefore, when designing the new DCI _ format, the new DCI _ format may be divided into multiple fields, that is, multiple fields, where different fields are used to trigger different terminal devices to perform channel state measurement and indicate time domain resources when different terminal devices send channel state information. That is, different terminal devices may be preset to monitor different domains, where one terminal device monitors one domain correspondingly. For example, assuming that 42 terminal devices are included in a certain group, the DCI _ format may be divided into 42 fields, i.e., 42 fields, where one terminal device corresponds to one field. It should be understood that, assuming that the size of the new DCI _ format is 126bits, each of the divided 42 domains has 3bits for instructing the triggering/non-triggering terminal device to perform channel state measurement and time domain resources for feeding back channel state information after the channel state measurement. For example, 1bit can be set in each 3bits to indicate that the terminal device is triggered/not triggered to perform channel state measurement, for example, 0 is set to trigger the terminal device to perform channel state measurement, 1 is set to not trigger the terminal device to perform channel state measurement, and the remaining 2bits are used to indicate time domain resources when the terminal device sends channel state information. For another example, the available 000 indications do not trigger the terminal device to perform channel state measurement, and the remaining indications trigger the terminal device to perform channel state measurement and time domain resources, which are determined according to an actual application scenario and are not limited herein. Further, the network device may also send the first indication information to the terminal device. The first indication information is used for indicating frequency domain resources occupied by the channel state information when the terminal equipment sends the channel state information. It should be understood that the first indication information may be a kind of RRC signaling, and is not limited herein. That is to say, when the network device can configure the feedback channel state information for the terminal device through the RRC signaling, the frequency domain resource occupied by the channel state information is occupied.

Optionally, in a possible implementation manner, when the downlink control information is carried on the PDCCH, the downlink control information may be DCI format 0_0 or DCI format 0_1. Further, a new RNTI (i.e. a second radio network temporary identifier) may be defined to scramble the DCI format 0_0 or the DCI format 0_1, so as to trigger the terminal device to perform channel state measurement. That is, the downlink control information scrambled by the second radio network temporary identifier may be used to trigger the terminal device to perform channel state measurement. Here, one second radio network temporary identifier is newly defined for one terminal device, and thus, DCI format 0_0 or DCI format 0_1 scrambled by one specific second radio network temporary identifier can be descrambled only by one specific terminal device. It should be understood that DCI format 0_0 or DCI format 0_1 includes a Frequency domain resource allocation field (Frequency domain resource allocation field) and a Time domain resource allocation field (Time domain resource allocation field), where the Frequency domain resource allocation field may be used to indicate a Frequency domain resource occupied by a channel state information when the terminal device sends the channel state information, and the Time domain resource allocation field may be used to indicate a Time domain resource when the terminal device sends the channel state information.

Optionally, in a possible implementation manner, when the downlink control information is carried on the PDCCH, the downlink control information may be DCI format 0_0 or DCI format 0_1. Here, DCI format 0_0 or DCI format 0_1 may be scrambled using an existing RNTI (i.e., first radio network temporary identity). It should be understood that DCI format 0_0 or DCI format 0_1 includes a frequency domain resource allocation field and a time domain resource allocation field. The specific value of the frequency domain resource allocation field can be set to trigger the channel state measurement of the terminal equipment, and the time domain resource allocation field is configured to indicate the time domain resource when the terminal equipment sends the channel state information. For example, the frequency domain resource allocation fields may be set to all 0's or all 1's for triggering the terminal device to perform channel state measurement. Further, the network device may also send the first indication information to the terminal device. The first indication information is used for indicating frequency domain resources occupied by the channel state information when the terminal equipment sends the channel state information. It should be understood that the first indication information may be a kind of RRC signaling, and is not limited herein. That is to say, when the network device can configure the feedback channel state information for the terminal device through the RRC signaling, the frequency domain resource occupied by the channel state information is occupied.

S202, the network equipment receives the channel state information sent by the terminal equipment on the time domain resource.

In some possible embodiments, after receiving downlink control information sent by a network device, if corresponding scheduling information can be demodulated by using a corresponding RNTI, the terminal device may be triggered to perform channel state measurement, that is, energy Detection (Energy Detection). If the Energy detection of the terminal device exceeds the Energy Threshold (Energy Threshold), it may be determined that the channel of the terminal device is busy, and thus no feedback is made, i.e., no channel state information is sent. If the energy detection of the terminal device does not exceed the energy threshold, it may be determined that the channel of the terminal device is idle, and therefore the terminal device may feed back the channel state information on the time domain resource indicated by the downlink control information and the frequency domain resource indicated by the first indication information or the downlink control information.

Specifically, in a possible implementation manner, if the downlink control information is carried on the GC-PDCCH, and the downlink control information is a newly defined DCI _ format and is scrambled by using a new RNTI, the newly defined DCI _ format may trigger multiple terminal devices to perform channel state measurement simultaneously. It should be understood that the new DCI _ format includes a plurality of fields, where one field corresponds to one terminal device. For example, it is assumed that a certain group includes 42 terminal devices, wherein the size of the newly defined DCI _ format is 126bits, so that the DCI _ format can be divided into 42 fields. The network device may configure, through RRC signaling, which domain each terminal device monitors. It is understood that there are 3bits in each domain to indicate whether to trigger the terminal device to perform the channel state measurement, and to feedback the time domain resource of the channel state information after performing the channel state measurement. For example, 1bit can be set in each 3bits to indicate that the terminal device is triggered/not triggered to perform channel state measurement, for example, 0 is set to trigger the terminal device to perform channel state measurement, 1 is set to not trigger the terminal device to perform channel state measurement, and the remaining 2bits are used to indicate time domain resources. For another example, 000 indicators may be set to indicate that the terminal device is not triggered to perform channel state measurements, and the remaining indicators indicate that the terminal device is to perform channel state measurements and time domain resources. That is, if a certain terminal device can demodulate scheduling information corresponding to downlink control information with a new RNTI through blind detection, and monitors that a value of a target field (field) set for the terminal device in advance is a value (for example, 0) for triggering the terminal device to perform channel state measurement, the terminal device can perform energy detection. It should be understood that if the value of the energy detection performed by the terminal device is greater than the energy threshold, it may be determined that the channel of the terminal device is busy, and therefore no feedback, i.e., no channel state information is sent. If the value of the energy detection of the terminal device is less than or equal to the energy threshold, it may be determined that the channel of the terminal device is idle, and therefore the terminal device may feed back the channel state information on the time domain resource indicated by the downlink control information and the frequency domain resource indicated by the first indication information.

For example, please refer to fig. 3a, fig. 3a is a diagram of an application scenario in which a GC-PDCCH carries downlink control information according to an embodiment of the present application. As shown in fig. 3a, the network device a triggers the terminal device a, the terminal device C, and the terminal device D to feed back the channel state information through the downlink control information DCI carried on the GC-PDCCH, and indicates the time domain resources of the terminal device a, the terminal device C, and the terminal device D in different domains in the DCI, respectively. And the terminal equipment A, the terminal equipment C and the terminal equipment D respectively perform energy detection after receiving the DCI. If the energy detection of the terminal device A exceeds the energy threshold, the channel of the terminal device A can be determined to be busy, and therefore, the channel state information is not fed back; if the energy detection of the terminal device C does not exceed the energy threshold, it may be determined that the channel of the terminal device C is idle, and therefore, the channel state information may be fed back on the frequency domain resource configured by the RRC signaling (i.e., the first indication information) and the time domain resource indicated by the DCI; if the energy detection of the terminal device D does not exceed the energy threshold, it may be determined that the channel of the terminal device D is idle, and therefore, the channel state information may be fed back on the frequency domain resource configured by the RRC signaling (i.e., the first indication information) and the time domain resource indicated by the DCI. Therefore, if the network device a receives the channel state information of the terminal device C and the terminal device D, it can be determined that the terminal device C and the terminal device D detect that the channel is idle, and therefore the network device a can send the uplink grant information UL grant to the terminal device C and the terminal device D. Accordingly, if the network device a does not receive the channel state information of the terminal device a on the time domain resource indicated in the DCI, it is considered that the terminal device a detects that the channel is busy, and therefore the network device a does not send the UL grant to the terminal device a. Before downlink transmission, the network device B detects whether there is channel state information sent by a nearby terminal device, and if it detects that there is channel state information and knows the channel occupation time included in the channel state information, the network device B does not perform downlink transmission in this period of time, and if it does not detect, performs downlink transmission normally.

Optionally, in a possible implementation manner, if the downlink control information is carried on the PDCCH, and the downlink control information is DCI format 0_0 or DCI format 0_1, and is scrambled using a new RNTI (i.e., a second radio network temporary identifier), the downlink control information may trigger only one terminal device to perform channel state measurement. Specifically, if a certain terminal device can demodulate the corresponding scheduling information by using the second radio network temporary identifier, the terminal device may be triggered to perform channel state measurement, i.e., energy detection. If the value obtained by the terminal device performing the energy detection is greater than the energy threshold, it is determined that the channel of the terminal device is busy, and therefore no feedback is made, that is, no channel state information is sent. If the value obtained by the terminal device performing the energy detection is smaller than or equal to the energy threshold, it is determined that the channel of the terminal device is idle, and therefore the terminal device may feed back the channel state information on the time domain resource indicated by the downlink control information and the frequency domain resource indicated by the downlink control information.

For example, please refer to fig. 3b, where fig. 3b is an application view of the PDCCH carrying downlink control information according to the embodiment of the present application. As shown in fig. 3B, if network device a and network device B are out of communication coverage of each other, and if network device B is sending data to terminal device B, network device a sends DCI to terminal device a before network device a sends UL grant to terminal device a, so as to trigger terminal device a to perform channel state measurement. After the terminal device a completes the measurement, if it is determined that the channel is occupied by the network device B, the channel state information is not sent. If the network device a does not receive the channel state information on the time domain resource indicated by the DCI, it is considered that the terminal device a detects that the channel is busy, and then does not schedule uplink transmission for the terminal device a, i.e., does not send the UL grant to the terminal device a. The network device B also detects whether the terminal device nearby sends the channel state information before performing downlink transmission, and if the network device B detects that the channel state information exists and knows the channel occupation time, the network device B does not perform downlink transmission in the period of time, and if the network device B does not detect the channel state information, the network device B performs downlink transmission normally.

For another example, please refer to fig. 3c, fig. 3c is a diagram of another application scenario in which a PDCCH is used to carry downlink control information according to an embodiment of the present application. As shown in fig. 3C, if network device C and network device D are out of communication coverage, if network device D is sending data to terminal device D, before network device C sends UL grant to terminal device C, DCI is sent to terminal device C to trigger terminal device C to perform channel state measurement. After the terminal device C completes the measurement, if it is determined that the channel of the terminal device C is idle, the terminal device C feeds back the channel state information on the frequency domain resource and the time domain resource indicated by the DCI. When the network device C receives the channel state information and considers that the terminal device C detects that the channel is idle, it may schedule uplink transmission for the terminal device C, that is, send a UL grant to the terminal device C. The network device D also detects whether the terminal device nearby sends channel state information before performing downlink transmission, and if it detects that there is channel state information and knows the channel occupation time, the network device D does not perform downlink transmission in this period of time, and if it does not detect, performs downlink transmission normally.

Optionally, in a possible implementation manner, if the downlink control information is carried on the PDCCH, and the downlink control information is DCI format 0_0 or DCI format 0_1, and is scrambled by using an existing RNTI (i.e., a first radio network temporary identifier), the downlink control information may only trigger one terminal device to perform channel state measurement. Specifically, if a certain terminal device can descramble DCI format 0_0 or DCI format 0_1 with the first radio network temporary identifier, and it is determined that the value of the frequency domain resource allocation field in DCI format 0_0 or DCI format 0_1 is a preset value, for example, the value of the frequency domain resource allocation field is set to 0 or 1, the terminal device may be triggered to perform channel state measurement, that is, energy detection. If the value obtained after the energy detection is performed by the terminal device is greater than the energy threshold, it is determined that the channel is busy, and therefore no feedback is performed, that is, no channel state information is sent to the network device. If the value of the energy detection of the terminal device is less than or equal to the energy threshold, it may be determined that the channel is idle, and therefore the terminal device may feed back the channel state information on the time domain resource indicated by the downlink control information and the frequency domain resource indicated by the first indication information.

For example, please continue to refer to fig. 3b, where fig. 3b is a diagram of another application scenario in which a PDCCH carries downlink control information according to an embodiment of the present application. As shown in fig. 3B, if network device a and network device B are out of communication coverage, and if network device B is sending data to terminal device B, before network device a sends UL grant to terminal device a, DCI is sent to terminal device a to trigger terminal device a to perform channel state measurement. After the terminal device a completes the measurement, it finds that the channel is occupied by the network device B, and therefore does not send the channel state information. The network device a does not receive the channel state information, and considers that the terminal device a detects that the channel is busy, so that uplink transmission is not scheduled for the terminal device a. Before downlink transmission, the network device B also detects whether a neighboring terminal device sends channel state information, and if the channel state information is detected and the channel occupation time is known, the network device B does not perform downlink transmission in this period, and if the channel state information is not detected, downlink transmission is performed normally.

For another example, please continue to refer to fig. 3c, fig. 3c is a diagram illustrating another application scenario in which a PDCCH carries downlink control information according to an embodiment of the present application. As shown in fig. 3C, if network device C and network device D are out of communication coverage, if network device D is sending data to terminal device D, before network device C sends UL grant to terminal device C, DCI is sent to terminal device C to trigger terminal device C to perform channel state measurement. After the terminal device C completes the measurement, it finds that the channel is idle, and the terminal device C feeds back the channel state information on the frequency domain resource configured by the first indication information and the time domain resource indicated by the DCI. Network device C receives the channel state information, considers that terminal device C detects that the channel is idle, and may schedule uplink transmission for terminal device C, that is, send a UL grant to terminal device C. Before downlink transmission, the network device D also detects whether there is channel state information sent by a nearby terminal device, and if it detects that there is channel state information and knows the channel occupation time, the network device D does not perform downlink transmission in this period of time, and if it does not detect, performs downlink transmission normally.

It should be understood that the Channel state information sent by the terminal device further includes a preamble and a Channel Occupied Time (COT) of the terminal device. One preamble is used for marking one terminal device, and the preamble may further include a cell identifier of a cell in which the terminal device is located. Here, the network device may configure different preambles for different terminal devices through RRC signaling, or if a preamble has been configured for each terminal device in advance, the preset preamble may be reused, which is not limited herein. It is to be understood that the network device may distinguish whether the preamble is used for random access or for feeding back the channel state information by sending the first indication information to the terminal device for configuring a frequency domain resource for the channel state information different from the random access. It will be appreciated that the channel occupancy time may be used to indicate when the channel occupancy has ended. The network device may send an indication information to the terminal device to indicate the channel occupying time of the terminal device, where the indication information carrying the channel occupying time may be the downlink control information used to indicate the time domain resource when the terminal device sends the channel state information, or the indication information carrying the channel occupying time may also be another downlink control information sent by the network device to the terminal device, which is not limited here.

It should be understood that, after the network device receives the channel state information on the time domain resource indicated in the downlink control information and on the frequency domain resource indicated by the first indication information or the downlink control information, it may determine, according to the preamble included in the channel state information, which terminal device in which cell specifically feeds back the channel state information. Here, it is taken as an example that the first network device sends downlink control information to the first terminal device and receives channel state information fed back by the first terminal device. It can be understood that the first terminal device is a terminal device included in a cell corresponding to the first network device, and a preamble included in the channel state information fed back by the first terminal device is a preamble of the first terminal device. Therefore, after receiving the channel state information, other network devices (for convenience of description, referred to as second network devices for short) nearby may analyze the preamble and the channel occupation time included in the channel state information, and then the second network device may determine whether the terminal device that sends the channel state information is the terminal device included in the cell corresponding to the second network device by comparing the cell identifier included in the preamble with the preset cell identifier. Here, the preset cell identifier is a cell identifier pre-stored in the second network device, that is, the preset cell identifier is a cell identifier of a cell corresponding to the second network device. Correspondingly, the cell identifier included in the preamble included in the channel state information fed back by the first terminal device is the cell identifier of the cell where the first terminal device is located, that is, the cell identifier of the cell corresponding to the first network device, so that the second network device can determine that the cell identifier included in the preamble is different from the preset cell identifier. Then, the second network device will keep silent, i.e. stop sending information, for the channel occupancy time included in the channel state information fed back by the first terminal device.

203. And the network equipment sends the uplink authorization information to the terminal equipment.

In some possible embodiments, after the network device receives the channel state information sent by the terminal device on the specified time domain resource and frequency domain resource, the network device may determine, by parsing the channel state information, which terminal device in which cell the channel state information is specifically fed back by according to a preamble included in the channel state information. If the network device determines that the channel state information is fed back by the terminal device included in the cell corresponding to the network device, the network device may send the uplink authorization information to the terminal device to inform that the terminal device may send data. Generally, after receiving the uplink grant information, a terminal device may send data after 4ms, that is, after 4 subframes. It should be understood that the channel state information is used to indicate that the channel of the terminal device is idle, and the uplink grant information is used to schedule transmission resources of uplink data for the terminal device. Accordingly, if the network device does not receive the channel state information fed back by the terminal device based on the downlink control information sent by the network device on the specified time domain resource, it may be determined that the channel of the terminal device is busy, and thus the network device will not send the uplink grant information.

In the embodiment of the present application, a network device sends downlink control information to a terminal device, where the downlink control information is used to indicate a time domain resource when the terminal device sends channel state information. The network equipment receives channel state information sent by the terminal equipment on time domain resources, wherein the channel state information is used for indicating that a channel of the terminal equipment is idle. The network equipment sends uplink authorization information to the terminal equipment, wherein the uplink authorization information is used for scheduling transmission resources of uplink data for the terminal equipment. By adopting the embodiment of the application, the reliability and the resource utilization rate of the communication system can be improved.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an uplink grant information transmission device according to an embodiment of the present disclosure. The above-mentioned apparatus is a network device, the above-mentioned apparatus includes the transceiver unit 31 and the processing unit 32, wherein:

a transceiver unit 31, configured to receive channel state information sent by a terminal device, where the channel state information is used to indicate that a channel of the terminal device is idle;

a processing unit 32, configured to send uplink grant information to the terminal device by the transceiver unit 31 if a cell identifier included in the channel state information is the same as a preset cell identifier.

In some possible embodiments, the transceiver unit 31 is further configured to:

In some possible embodiments, the downlink control information is carried on a group common physical downlink control channel of a group in which the terminal device is located, and the downlink control information is scrambled by a group radio network temporary identifier of the group in which the terminal device is located;

In some possible embodiments, the downlink control information is carried on a physical downlink control channel, and the downlink control information includes a frequency domain resource allocation field and a time domain resource allocation field, where the frequency domain resource allocation field is used to trigger the terminal device to perform channel state measurement, and the time domain resource allocation field is used to indicate time domain resources when the terminal device sends channel state information.

In some possible embodiments, the downlink control information is carried on a physical downlink control channel, and the downlink control information is scrambled by a radio network temporary identifier, where the downlink control information scrambled by the radio network temporary identifier is used to trigger the terminal device to perform channel state measurement;

In some possible embodiments, the transceiver unit 31 is further configured to:

In some possible embodiments, the channel state information includes a channel occupying time, and the processing unit 32 is further configured to stop sending information by the transceiver unit 31 during the channel occupying time if the cell identifier included in the channel state information is different from the preset cell identifier.

In some possible embodiments, the channel state information includes a preamble of the terminal device, and the preamble of the terminal device includes the cell identifier.

Referring to fig. 5, fig. 5 is another schematic structural diagram of an uplink grant information transmission device according to an embodiment of the present application. The apparatus is a terminal device, and the apparatus includes the transceiver unit 41 and the processing unit 42:

a transceiver unit 41, configured to send channel state information to a network device, where the channel state information is used to indicate that a channel of a terminal device is idle, and the channel state information includes a cell identifier;

the transceiver unit 41 is configured to receive the uplink grant information sent by the network device.

In some possible embodiments, the transceiver unit 41 is further configured to:

and sending the channel state information to the network equipment on the time domain resource.

the transceiver unit 41 is further configured to:

In some possible embodiments, the transceiver unit 41 is further configured to:

In some possible embodiments, the channel state information includes a channel occupation time.

Referring to fig. 6, fig. 6 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure. The apparatus may be the access network device in the first embodiment, and the apparatus may be configured to implement the address allocation method implemented by the access network device. The device comprises: a processor 51, a memory 52, a transceiver 53.

Memory 52 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, and memory 52 is used to store the relevant instructions and data. The memory 52 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

and (3) operating instructions: including various operational instructions for performing various operations.

Operating the system: including various system programs for implementing various basic services and for handling hardware-based tasks.

Only one memory is shown in fig. 6, but of course, the memory may be provided in plural numbers as necessary.

The transceiver 52 may be a communication module, a transceiver circuit. In the embodiment of the present application, the transceiver 53 is configured to perform the operations related to the foregoing embodiments, such as sending downlink control information, receiving channel state information, and sending uplink grant information.

The processor 51 may be a controller, CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure of the embodiments of the application. The processor 51 may also be a combination of computing functions, e.g., comprising one or more microprocessors, a combination of a DSP and a microprocessor, or the like.

In a particular application, the various components of the device may be coupled together by a bus system that may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus.

The embodiments of the present application also provide a computer-readable medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the method or steps performed by the access network device in the foregoing embodiments.

Embodiments of the present application further provide a computer program product, where the computer program product, when executed by a computer, implements the method or steps performed by the access network device in the foregoing embodiments.

The embodiment of the present application further provides an apparatus, which may be the access network device in the foregoing embodiment. The apparatus includes a processor and an interface. The processor is configured to perform the method or steps performed by the terminal device in the above embodiments. It should be understood that the terminal device may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like. When implemented in software, the processor may be a general-purpose processor, which may be implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

Referring to fig. 7, fig. 7 is another structural schematic diagram of an apparatus provided in the embodiment of the present application. The apparatus may be the terminal device in the foregoing embodiment, and the apparatus may be configured to implement the method implemented by the terminal device in the foregoing embodiment. The device comprises: a processor 61, a memory 62, a transceiver 63.

The memory 62 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, and the memory 62 is used to store relevant instructions and data. The memory 62 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

Only one memory is shown in fig. 7, but of course, the memory may be provided in plural numbers as necessary.

The transceiver 63 may be a communication module, a transceiver circuit. In this embodiment, the transceiver 63 is configured to perform operations such as receiving downlink control information, sending channel state information, and receiving uplink grant information.

The processor 61 may be a controller, CPU, general purpose processor, DSP, ASIC, FPGA or other programmable logic device, transistor logic device, hardware component or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure of the embodiments of the application. The processor 61 may also be a combination of computing functions, e.g., comprising one or more microprocessors, a combination of a DSP and a microprocessor, or the like.

An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a processor, the uplink authorization information transmission method provided in each step in fig. 2 is implemented, which may specifically refer to implementation manners provided in each step, and details of which are not described herein again.

The computer-readable storage medium may be the uplink authorization information transmission apparatus provided in any of the foregoing embodiments, or an internal storage unit of the network device or the terminal device, such as a hard disk or a memory of an electronic device. The computer readable storage medium may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) card, a flash card (flash card), and the like, which are provided on the electronic device. Further, the computer readable storage medium may also include both an internal storage unit and an external storage device of the electronic device. The computer readable storage medium is used for storing the computer program and other programs and data required by the electronic device. The computer readable storage medium may also be used to temporarily store data that has been output or is to be output.

The terms "first", "second", "third", "fourth", and the like in the claims and in the description and drawings of the present application are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments. The term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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 application.

The method and the related apparatus provided by the embodiments of the present application are described with reference to the flowchart and/or the structural diagram of the method provided by the embodiments of the present application, and specifically, each flow and/or block of the flowchart and/or the structural diagram of the method, and the combination of the flows and/or blocks in the flowchart and/or the block diagram, may be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks of the block diagram. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block or blocks of the block diagram. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. An uplink grant information transmission method, the method comprising:

if the cell identifier included in the channel state information is the same as a preset cell identifier, sending uplink authorization information to the terminal equipment;

before receiving the channel state information sent by the terminal device, the method further includes:

receiving the channel state information sent by the terminal equipment on the time domain resource;

the downlink control information is carried on a physical downlink control channel, and the downlink control information includes a frequency domain resource allocation field and a time domain resource allocation field, where the frequency domain resource allocation field is used to trigger the terminal device to perform channel state measurement, and the time domain resource allocation field is used to indicate time domain resources when the terminal device sends channel state information; alternatively, the first and second electrodes may be,

the downlink control information is carried on a physical downlink control channel, and the downlink control information is scrambled by a radio network temporary identifier, wherein the downlink control information scrambled by the radio network temporary identifier is used for triggering the terminal equipment to perform channel state measurement;

2. The method of claim 1, wherein the channel state information comprises a channel occupancy time, and wherein the method further comprises:

and if the cell identifier included in the channel state information is different from the preset cell identifier, stopping sending the information within the channel occupation time.

3. The method of claim 1, wherein the channel state information comprises a preamble of the terminal device, and wherein the cell identifier is included in the preamble of the terminal device.

4. An uplink grant information transmission method, the method comprising:

receiving uplink authorization information sent by the network equipment;

before the sending of the channel state information, the method further includes:

the sending of the channel state information to the network device includes:

transmitting the channel state information to the network device on the time domain resource;

the downlink control information is carried on a physical downlink control channel, and the downlink control information is scrambled by a radio network temporary identifier, wherein the downlink control information scrambled by the radio network temporary identifier is used for triggering the terminal equipment to measure the channel state;

the downlink control information comprises a frequency domain resource allocation field and a time domain resource allocation field, wherein the frequency domain resource allocation field is used for indicating the frequency domain resources occupied by the channel state information when the terminal equipment sends the channel state information, and the time domain resource allocation field is used for indicating the time domain resources when the terminal equipment sends the channel state information;

the sending of the channel state information to the network device includes:

5. The method of claim 4, wherein the channel state information comprises a channel occupancy time.

6. The method of claim 4, wherein the channel state information comprises a preamble of the terminal device, and wherein the cell identifier is included in the preamble of the terminal device.

7. A network device, characterized in that the network device comprises:

a receiving and sending unit, configured to receive channel state information sent by a terminal device, where the channel state information is used to indicate that a channel of the terminal device is idle;

a processing unit, configured to send uplink authorization information to the terminal device by the transceiver unit if a cell identifier included in the channel state information is the same as a preset cell identifier;

wherein, before receiving the channel state information sent by the terminal device, the transceiver unit is further configured to:

when receiving the channel state information sent by the terminal device, the transceiver unit is further configured to:

8. A terminal device, characterized in that the terminal device comprises:

a receiving and sending unit, configured to send channel state information to a network device, where the channel state information is used to indicate that a channel of a terminal device is idle, and the channel state information includes a cell identifier;

the receiving and sending unit is used for receiving uplink authorization information sent by the network equipment;

wherein, before the sending the channel state information, the transceiver unit is further configured to:

when the channel state information is sent to the network device, the transceiver unit is further configured to:

9. A communication device comprising a processor, a memory and a transceiver, said processor, said memory and said transceiver being interconnected;

the memory for storing a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of any one of claims 1-6.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to perform the method according to any one of claims 1-6.

11. A communication system, characterized in that the communication system comprises a network device for performing the method according to any of claims 1-3 and a terminal device for performing the method according to any of claims 4-6.