CN113556816B

CN113556816B - Method and device for indicating uplink channel resources

Info

Publication number: CN113556816B
Application number: CN202010334434.0A
Authority: CN
Inventors: 周欢; 沈兴亚
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2023-01-10
Anticipated expiration: 2040-04-24
Also published as: CN113556816A

Abstract

The embodiment of the application discloses an indication method and a device of uplink channel resources, wherein the method comprises the following steps: receiving a first high-level signaling sent by a base station, wherein the first high-level signaling comprises a first resource indicated value, and the first resource indicated value is used for determining a first frequency domain resource for accessing an uplink channel and transmitting uplink information. And receiving a second high-level signaling sent by the base station, wherein the second high-level signaling comprises a candidate resource sending position. And determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value, wherein the second frequency domain resource is a frequency domain resource for uplink channel access and uplink information transmission. By adopting the embodiment of the application, the success rate and the reliability of channel access can be improved.

Description

Method and device for indicating uplink channel resources

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for indicating uplink channel resources.

Background

The third Generation Partnership project (3 gpp) standards organization will study how to deploy The Fifth-Generation mobile communications (5G) New wireless (New Radio, NR) system on The unlicensed spectrum, thereby achieving The purpose of fairly and effectively utilizing The unlicensed spectrum and increasing The data transmission rate of The NR system. The NR system uses unlicensed spectrum technology, also known as New radio access unlicensed (NR-U) technology. There are three main ways of NR-U technology: 1. an NR cell of an unlicensed spectrum is a main cell, and a User Equipment (UE) directly accesses the NR cell of the unlicensed spectrum; 2. the UE accesses an NR cell of an unlicensed spectrum through a cell of a Long Term Evolution (LTE) system of the licensed spectrum; 3. the UE accesses the NR cell of the unlicensed spectrum through the NR cell of the licensed spectrum. For

modes

2 and 3, the licensed spectrum and the unlicensed spectrum are used in combination in a manner similar to carrier aggregation, that is, one terminal device, NR base station (also referred to as gNB), or Evolved Node B (gNB) may simultaneously operate on the licensed spectrum and the unlicensed spectrum.

In the existing NR system, a Bandwidth range supported by one carrier Bandwidth or a partial Bandwidth (BWP) is large, for example, it may be larger than 20MHz. Among them, the Uplink resource indication of the existing Physical Uplink Control Channel (PUCCH) is usually limited to one carrier bandwidth or one subband of BWP, and the Uplink resource indication of the Physical Uplink Shared Channel (PUSCH) is usually limited to one carrier bandwidth or one or a plurality of consecutive subbands of BWP. Therefore, when uplink channel access is performed, when channel access fails in the sub-band indicated by the uplink resource through the PUCCH or when channel access fails in a part of the sub-band indicated by the uplink resource through the PUSCH, data transmission cannot be performed on the PUCCH or the PUSCH, success rates of uplink channel access and uplink information transmission are reduced, and reliability is not high.

Disclosure of Invention

The embodiment of the application provides an indication method and device of uplink channel resources, which can improve the success rate and reliability of channel access.

In a first aspect, an embodiment of the present application provides a method for indicating uplink channel resources, where the method includes:

receiving a first high-level signaling sent by a base station, wherein the first high-level signaling comprises a first resource indicated value, and the first resource indicated value is used for determining a first frequency domain resource for accessing an uplink channel and transmitting uplink information;

receiving a second high-level signaling sent by the base station, wherein the second high-level signaling comprises a candidate resource sending position;

and determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value, wherein the second frequency domain resource is a frequency domain resource for uplink channel access and uplink information transmission.

With reference to the first aspect, in a possible implementation manner, the candidate resource sending position includes a candidate set bitmap, where the candidate set bitmap includes at least one bit, and each bit in the at least one bit corresponds to each resource block set in multiple resource block sets included in a current carrier bandwidth or BWP, respectively;

the determining, according to the candidate resource sending position and the first resource indication value, a second frequency domain resource for uplink channel access includes:

determining at least one candidate resource block set from a plurality of resource block sets included in the current carrier bandwidth or BWP according to bit values of bits in the candidate set bitmap;

and determining the second frequency domain resource from the at least one candidate resource block set according to the first resource indicated value.

With reference to the first aspect, in a possible implementation manner, the candidate resource sending position includes at least one candidate set offset value, where the candidate set offset value represents a relative offset position between a candidate resource block set and a resource block set where the first frequency domain resource is located;

determining at least one candidate resource block set from a plurality of resource block sets included in the current carrier bandwidth or BWP according to the resource block set where the first frequency domain resource is located and the at least one candidate set offset value;

and determining the second frequency domain resource from the at least one candidate resource block set according to the first resource indication value.

With reference to the first aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index;

the method further comprises the following steps:

and determining the resource block set where the first frequency domain resource is located according to the first physical resource block index.

With reference to the first aspect, in a possible implementation manner, the first resource indication value includes a first resource block set index and a resource block set length;

the method further comprises the following steps:

and determining at least one resource block set in which the first frequency domain resource is located according to the first resource block set index and the length of the resource block set.

With reference to the first aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index and a physical resource block length;

the determining, according to the first resource indication value, the second frequency domain resource from the at least one candidate resource block set includes:

determining a candidate resource block set except the resource block set corresponding to the first physical resource block index from the at least one candidate resource block set as a target resource block set;

determining a starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located according to the first physical resource block index and a plurality of physical resource blocks included in the resource block set corresponding to the first physical resource block index;

and determining a corresponding physical resource block from the target resource block set according to the initial physical resource block offset value and the physical resource block length to serve as a second frequency domain resource.

With reference to the first aspect, in a possible implementation manner, the first resource indication value includes a plurality of candidate physical resource block indexes;

determining one or more candidate resource block sets from the at least one candidate resource block set as a target resource block set;

and indexing the physical resource block corresponding to the candidate physical resource block in the target resource block set to serve as a second frequency domain resource.

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

receiving first indication information sent by the base station, where the first indication information is used to indicate a plurality of resource block sets included in a current carrier bandwidth or BWP, and a plurality of physical resource blocks included in each resource block set.

receiving second indication information sent by the base station, wherein the second indication information comprises frequency domain resource occupation conditions;

and if the first frequency domain resource is determined to be unavailable according to the frequency domain resource occupation condition and the second frequency domain resource is available, performing uplink channel access in the second frequency domain resource.

With reference to the first aspect, in a possible implementation manner, the second indication information further includes a channel occupation time;

the performing uplink channel access in the second frequency domain resource includes:

when the channel access time is determined to be within the channel occupation time, performing uplink channel access in the second frequency domain resource by adopting a first channel access mode;

and when the channel access time is not within the channel occupation time, performing uplink channel access in the second frequency domain resource by adopting a second channel access mode.

With reference to the first aspect, in a possible implementation manner, the second indication information further includes a channel access manner;

and performing uplink channel access in the second frequency domain resource by adopting the channel access mode.

In a second aspect, an embodiment of the present application provides a method for indicating uplink channel resources, where the method includes:

sending a first high-level signaling to a terminal device, wherein the first high-level signaling comprises a first resource indicated value, and the first resource indicated value is used for determining a first frequency domain resource for accessing an uplink channel and transmitting uplink information;

and sending a second high-level signaling to the terminal equipment, wherein the second high-level signaling comprises a candidate resource sending position, the candidate resource sending position is used for being combined with the first resource indicated value to determine a second frequency domain resource for uplink channel access, and the second frequency domain resource is a frequency domain resource for uplink channel access and uplink information transmission.

With reference to the second aspect, in a possible implementation manner, the candidate resource sending position includes a candidate set bitmap, the candidate set bitmap includes at least one bit, each bit of the at least one bit corresponds to each resource block set of multiple resource block sets included in a current carrier bandwidth or BWP, and a bit value on each bit of the candidate set bitmap is used to determine at least one candidate resource block set from the multiple resource block sets included in the current carrier bandwidth or BWP.

With reference to the second aspect, in a possible implementation manner, the candidate resource sending position includes at least one candidate set offset value, where the candidate set offset value represents a relative offset position between a candidate resource block set and a resource block set in which the first frequency domain resource is located, and the candidate set offset value is used for combining with the resource block set in which the first frequency domain resource is located, so as to determine at least one candidate resource block set from a plurality of resource block sets included in a current carrier bandwidth or BWP.

With reference to the second aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index, where the first physical resource block index is used to determine a resource block set where the first frequency domain resource is located.

With reference to the second aspect, in a possible implementation manner, the first resource indication value includes a first resource block set index and a resource block set length, where the first resource block set index and the resource block set length are used to determine at least one resource block set where the first frequency domain resource is located.

With reference to the second aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index and a physical resource block length, the first physical resource block index is used to determine, from the at least one candidate resource block set, one candidate resource block set except for the resource block set corresponding to the first physical resource block index as a target resource block set, the first physical resource block index is further used to determine a starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located, and the starting physical resource block offset value is used in combination with the physical resource block length to determine a corresponding physical resource block from the target resource block set as a second frequency domain resource.

With reference to the second aspect, in a possible implementation manner, the first resource indication value includes a plurality of candidate physical resource block indexes, where the plurality of candidate physical resource block indexes are used to determine a physical resource block corresponding to a candidate physical resource block index existing in a target resource block set as the second frequency domain resource, and the target resource block set is one or more candidate resource block sets in the at least one candidate resource block set.

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

and sending first indication information to the terminal device, where the first indication information is used to indicate a plurality of resource block sets included in a current carrier bandwidth or BWP, and a plurality of physical resource blocks included in each resource block set.

and sending second indication information to the terminal equipment, wherein the second indication information comprises frequency domain resource occupation conditions, and the frequency domain resource occupation conditions are used for using the second frequency domain resources for uplink channel access when the first frequency domain resources are determined to be unavailable and the second frequency domain resources are available.

With reference to the second aspect, in a possible implementation manner, the second indication information further includes a channel occupation time, and the second indication information is used to indicate that, when the channel access time is within the channel occupation time, the uplink channel access is performed in the second frequency domain resource by using the first channel access method, and when the channel access time is not within the channel occupation time, the uplink channel access is performed in the second frequency domain resource by using the second channel access method.

With reference to the second aspect, in a possible implementation manner, the second indication information further includes a channel access method, and the second indication information is used to indicate that uplink channel access is performed in the second frequency domain resource according to the channel access method.

In a third aspect, an embodiment of the present application provides an apparatus for indicating uplink channel resources, where the apparatus includes:

a transceiver unit, configured to receive a first high-level signaling sent by a base station, where the first high-level signaling includes a first resource indication value, and the first resource indication value is used to determine a first frequency domain resource used for accessing an uplink channel and transmitting uplink information;

the transceiver unit is further configured to receive a second high-level signaling sent by the base station, where the second high-level signaling includes a candidate resource sending location;

and a processing unit, configured to determine, according to the candidate resource sending position and the first resource indication value, a second frequency domain resource used for uplink channel access, where the second frequency domain resource is a frequency domain resource used for uplink channel access and uplink information transmission.

With reference to the third aspect, in a possible implementation manner, the candidate resource sending position includes a candidate set bitmap, the candidate set bitmap includes at least one bit, and each bit of the at least one bit corresponds to each resource block set of multiple resource block sets included in the current carrier bandwidth or BWP, respectively;

the processing unit is specifically configured to:

With reference to the third aspect, in a possible implementation manner, the candidate resource sending position includes at least one candidate set offset value, where the candidate set offset value represents a relative offset position between a candidate resource block set and a resource block set where the first frequency domain resource is located;

the processing unit is specifically configured to:

With reference to the third aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index;

the processing unit is specifically configured to:

and determining a resource block set where the first frequency domain resource is located according to the first physical resource block index.

With reference to the third aspect, in a possible implementation manner, the first resource indication value includes a first resource block set index and a resource block set length;

the processing unit is specifically configured to:

With reference to the third aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index and a physical resource block length;

the processing unit is specifically configured to:

With reference to the third aspect, in a possible implementation manner, the first resource indication value includes a plurality of candidate physical resource block indexes;

the processing unit is specifically configured to:

With reference to the third aspect, in a possible implementation manner, the transceiver unit is further configured to receive first indication information sent by the base station, where the first indication information is used to indicate a plurality of resource block sets included in a current carrier bandwidth or BWP and a plurality of physical resource blocks included in each resource block set.

With reference to the third aspect, in a possible implementation manner, the transceiver unit is further configured to receive second indication information sent by the base station, where the second indication information includes a frequency domain resource occupation situation;

the processing unit is further configured to perform uplink channel access in the second frequency domain resource if it is determined that the first frequency domain resource is unavailable and the second frequency domain resource is available according to the frequency domain resource occupation condition.

With reference to the third aspect, in a possible implementation manner, the second indication information further includes a channel occupation time;

the processing unit is further configured to:

With reference to the third aspect, in a possible implementation manner, the second indication information further includes a channel access manner;

the processing unit is further configured to:

In a fourth aspect, an embodiment of the present application provides an apparatus for indicating uplink channel resources, where the apparatus includes:

a transceiving unit, configured to send a first high-level signaling to a terminal device, where the first high-level signaling includes a first resource indication value, and the first resource indication value is used to determine a first frequency domain resource used for accessing an uplink channel and transmitting uplink information;

the transceiver unit is configured to send a second high-level signaling to the terminal device, where the second high-level signaling includes a candidate resource sending position, and the candidate resource sending position is used to determine, in combination with the first resource indication value, a second frequency domain resource used for uplink channel access, where the second frequency domain resource is a frequency domain resource used for uplink channel access and uplink information transmission.

With reference to the fourth aspect, in a possible implementation manner, the candidate resource sending position includes a candidate set bitmap, the candidate set bitmap includes at least one bit, each bit of the at least one bit corresponds to each resource block set of multiple resource block sets included in the current carrier bandwidth or BWP, and a bit value on each bit of the candidate set bitmap is used to determine at least one candidate resource block set from the multiple resource block sets included in the current carrier bandwidth or BWP.

With reference to the fourth aspect, in a possible implementation manner, the candidate resource sending position includes at least one candidate set offset value, where the candidate set offset value indicates a relative offset position between a candidate resource block set and a resource block set in which the first frequency domain resource is located, and the candidate set offset value is used for combining with the resource block set in which the first frequency domain resource is located, so as to determine at least one candidate resource block set from a plurality of resource block sets included in a current carrier bandwidth or BWP.

With reference to the fourth aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index, where the first physical resource block index is used to determine a resource block set where the first frequency domain resource is located.

With reference to the fourth aspect, in a possible implementation manner, the first resource indication value includes a first resource block set index and a resource block set length, where the first resource block set index and the resource block set length are used to determine at least one resource block set where the first frequency domain resource is located.

With reference to the fourth aspect, in a possible implementation manner, the first resource indication value includes a first physical resource block index and a physical resource block length, the first physical resource block index is used to determine, from the at least one candidate resource block set, one candidate resource block set except for the resource block set corresponding to the first physical resource block index as a target resource block set, the first physical resource block index is further used to determine a starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located, and the starting physical resource block offset value is used in combination with the physical resource block length to determine a corresponding physical resource block from the target resource block set as a second frequency domain resource.

With reference to the fourth aspect, in a possible implementation manner, the first resource indication value includes a plurality of candidate physical resource block indexes, where the plurality of candidate physical resource block indexes are used to determine a physical resource block corresponding to a candidate physical resource block index existing in a target resource block set as the second frequency domain resource, and the target resource block set is one or more candidate resource block sets in the at least one candidate resource block set.

With reference to the fourth aspect, in a possible implementation manner, the transceiver unit is further configured to:

and sending first indication information to the terminal device, where the first indication information is used to indicate a plurality of resource block sets included in a current carrier bandwidth or BWP and a plurality of physical resource blocks included in each resource block set.

With reference to the fourth aspect, in a possible implementation manner, the second indication information further includes a channel occupation time, and the second indication information is used to indicate that, when the channel access time is within the channel occupation time, the uplink channel access is performed in the second frequency domain resource by using the first channel access method, and when the channel access time is not within the channel occupation time, the uplink channel access is performed in the second frequency domain resource by using the second channel access method.

With reference to the fourth aspect, in a possible implementation manner, the second indication information further includes a channel access method, and the second indication information is used to indicate that uplink channel access is performed in the second frequency domain resource according to the channel access method.

In a fifth aspect, an embodiment of the present application provides a terminal device, where the terminal device includes a processor and a memory, and the processor and the memory are connected to each other. The memory is configured to store a computer program that supports the terminal device to execute the method provided by the first aspect and/or any one of the possible implementation manners of the first aspect, where the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method provided by the first aspect and/or any one of the possible implementation manners of the first aspect.

In a sixth aspect, an embodiment of the present application provides a base station, which includes a processor and a memory, and the processor and the memory are connected to each other. The memory is used for storing a computer program supporting the base station to execute the method provided by the second aspect and/or any possible implementation manner of the second aspect, and the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method provided by the second aspect and/or any possible implementation manner of the second aspect.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, the computer program includes program instructions, and when the program instructions are executed by a processor, the processor is caused to execute the method provided by the first aspect and/or any one of the possible implementation manners of the first aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, which stores a computer program, where the computer program includes program instructions, and the program instructions, when executed by a processor, cause the processor to execute the method provided by the second aspect and/or any possible implementation manner of the second aspect.

In a ninth aspect, an embodiment of the present application provides a communication system, which includes a terminal device and a base station.

In this embodiment, the terminal device may obtain that the first higher layer signaling includes a first resource indication value by receiving the first higher layer signaling sent by the base station, where the first resource indication value is used to determine a first frequency domain resource used for uplink channel access. And obtaining the candidate resource sending position in the second high-level signaling by receiving the second high-level signaling sent by the base station. And determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value. And the second frequency domain resource is used for accessing the uplink channel under the condition that the first frequency domain resource is determined to be unavailable. By adopting the embodiment of the application, the success rate and the reliability of channel access 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 view of an application scenario of an interleaving set resource allocation manner according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 3 is a flowchart of an indication method of uplink channel resources according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an application scenario of configuration information of a current BWP provided in an embodiment of the present application;

fig. 5 is a schematic diagram of another application scenario of configuration information of a current BWP provided in an embodiment of the present application;

fig. 6 is a schematic view of an application scenario of a second frequency domain resource provided in an embodiment of the present application;

fig. 7 is a schematic diagram of another application scenario of a second frequency domain resource provided in an embodiment of the present application;

fig. 8 is a schematic diagram of another application scenario of the second frequency domain resource provided in the embodiment of the present application;

fig. 9 is a schematic diagram of another application scenario of the second frequency domain resource provided in the embodiment of the present application;

fig. 10 is another flowchart illustrating an indicating method of uplink channel resources according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an apparatus for indicating uplink channel resources according to an embodiment of the present application;

fig. 12 is another schematic structural diagram of an apparatus for indicating uplink channel resources according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 14 is another schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

For convenience of understanding, prior to describing the method provided by the embodiment of the present application, the related knowledge related to the method provided by the embodiment of the present application is briefly described as follows:

in the existing NR system, a Licensed Assisted Access (LAA) technology may be used to communicate in an unlicensed spectrum. In LAA technology, PUCCH supports continuous PRB resources, and PUSCH includes two types of resource allocation, which are resource allocation type 0 and resource allocation type1, respectively. In the Resource allocation type 0, a Resource Block Group (RBG) allocated to the UE may be indicated by bitmap (i.e., bitmap). Wherein, an RBG is a group of continuous localized virtual resource blocks (localized VRBs). The size P of the RBGs (i.e., the number of VRBs contained in each RBG) is determined by the bandwidth of the BWP and the higher layer signaling. The total number N of RBGs included in the BWP may be determined by the bandwidth of the BWP, the size P of the RBGs, and the starting position of the BWP. For example, assuming that the bandwidth of BWP is 20MHZ and the size P =4 per RBG, a total of 25 RBGs may be included in the 20MHZ bandwidth. It should be understood that the bitmap includes a total of N bits, where each bit corresponds to an RBG. Specifically, the highest bit in the bitmap represents RBG0 and the lowest bit represents RBG (N-1). Therefore, if a certain RBG is allocated to a certain UE, the corresponding bit position 1 in bitmap is sufficient, otherwise, it is set to 0. In resource allocation type1, the resource allocated to the UE is a continuous segment of VRBs, where mapping of the VRBs to Physical Resource Blocks (PRBs) may be centralized or distributed. In the centralized resource mapping method, the VRB pairs and PRB pairs are in one-to-one correspondence, that is, the positions of the VRBs are the positions of the PRBs. In the distributed resource mapping mode, the VRB pairs and PRB pairs are not in one-to-one correspondence, that is, consecutive VRB indexes are mapped to non-consecutive PRB indexes.

In addition, in LAA technology, the PUCCH and PUSCH may be allocated by way of an interlace (interlace). Wherein each interlace is a basic unit of resource allocation. For example, please refer to fig. 1, fig. 1 is a schematic view of an application scenario of an interleaving set resource allocation method according to an embodiment of the present application. As shown in fig. 1, the bandwidth of BWP is 20MHz, and a total of 100 PRBs are taken as an example. It is assumed that 10 PRBs are configured in each interlace and are uniformly distributed in the frequency domain. For example, interlace 0 is composed of

PRB indices

0,10,20, …,90, i.e., interlace set 0= {0,10,20,30,40,50,60,70,80,90}. For another example, interlace1 consists of

PRB indices

1,11,21, …,91, i.e. interlace set 1= {1,11,21,31,41,51,61,71,81,91}, and so on, interlace set 9= {9,19,29,39,49,59,69,79,89,99}.

On unlicensed spectrum, LAA techniques may utilize Listen-Before-Talk (LBT) mechanisms to enable coexistence of different communication systems in unlicensed spectrum. The basic principle of the LBT mechanism is: before transmitting data in an unlicensed spectrum, a node determines whether a current Channel is available through a Clear Channel Assessment (CCA) mechanism based on an Energy detection (Energy detection) result. Some regional regulations specify an Energy detection threshold (Energy detection threshold), and if the node received Energy is higher than the specified Energy detection threshold, the channel is considered busy, i.e., the channel is unavailable.

The uplink transmission of the NR system supports two channel access processes, namely Type1 (Type 1) channel access and Type2 (Type 2) channel access, and for convenience of description, the uplink transmission of the NR system is referred to as Type1 channel access and Type2 channel access. Specifically, the Type1 channel access procedure, that is, the random backoff LBT procedure of the non-fixed length contention window, may include the following steps: (1) While monitoring the channel, if the channel is idle within a defer duration (defer duration), a backoff timer N may be initialized; (2) N = N init, and N init is a random number from 0 to CWp; (3) If N >0 and the base station decrements the counter value, N = N-1, otherwise if N =0, the counting is stopped or the counting is stopped while the channel is busy. The Type2 channel access process is a random backoff LBT process of a fixed length contention window, and requires that at least the idle time of a detected channel is 25 microseconds (μ s) and the average energy is lower than an energy threshold, and downlink or uplink information can be sent on a channel transmitted by an unlicensed cell only when the transmission time is less than 1 ms. For convenience of description, in the following embodiment of the present application, a Type1 channel access manner is simply referred to as a second channel access manner, and a Type1 channel access manner is simply referred to as a first channel access manner.

Please refer to fig. 2, where fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application. The method for indicating the uplink channel resource is suitable for 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. 2, the communication system may include a base station and a terminal device. The base station includes, but is not limited to, an NR base station, an evolved node b, and the like. The terminal device may also be referred to as a user device, wherein 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. For convenience of description, the following description will be given taking a terminal device as an example. Specifically, in the method in the embodiment of the present application, the terminal device may obtain, by receiving a first higher layer signaling sent by the base station, that the first higher layer signaling includes a first resource indication value, where the first resource indication value is used to determine a first frequency domain resource used for uplink channel access. And obtaining the candidate resource sending position in the second high-level signaling by receiving the second high-level signaling sent by the base station. And determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value. And the second frequency domain resource is used for accessing the uplink channel under the condition that the first frequency domain resource is determined to be unavailable. By adopting the embodiment of the application, the success rate and the reliability of channel access can be improved.

The method and the related apparatus provided by the embodiments of the present application will be described in detail with reference to fig. 3 to 14, respectively. The method provided by the embodiment of the application can comprise data processing stages for receiving a first high-level signaling, receiving a second high-level signaling, determining a second frequency domain resource according to a first resource indication value included in the first high-level signaling and a candidate resource sending position included in the second high-level signaling, and the like. The implementation of each data processing stage can be seen in the following implementations shown in fig. 3 to 10.

Referring to fig. 3, fig. 3 is a flow chart of an indication method of uplink channel resources according to an embodiment of the present application. The method provided by the embodiment of the application can comprise the following steps S101 to S104:

s101, the terminal equipment receives a first high-level signaling sent by the base station.

In some possible embodiments, the terminal device may obtain, by receiving the first higher layer signaling sent by the base station, the first higher layer signaling including the first resource indication value through parsing. The first resource indication value may include a first physical resource block index and a physical resource block length, or the first resource indication value may include an interlace set, or the first resource indication value may further include a first resource block set index, a resource block set length, an interlace set, and the like, which is not limited herein. It is to be understood that the first resource indication value may be used to determine a frequency domain resource for uplink channel access and uplink information transmission, i.e., a first frequency domain resource. It should be understood that the uplink channel may include PUCCH or PUSCH. Generally, the PUCCH may perform uplink channel access on physical resource blocks in one resource block set (i.e., RB-set) and transmit uplink information. The PUSCH can perform uplink channel access in one or a plurality of continuous resource block sets and transmit uplink information.

In some possible embodiments, after parsing the first resource indication value included in the first higher layer signaling, the terminal device may determine, according to the first resource indication value, a first frequency domain resource used for uplink channel access from a plurality of resource block sets included in a current carrier bandwidth or BWP. For convenience of description, the embodiments of the present application are described below with BWP as an example. It should be understood that a plurality of resource block sets may be included in the configuration information of the current BWP, and a plurality of physical resource blocks included in each of the plurality of resource block sets. The configuration information of the current BWP may be indicated by the first indication information sent by the base station to the terminal device, or the terminal device may query the BWP configuration information stored in advance, which is not limited herein.

For example, please refer to fig. 4, fig. 4 is a schematic view of an application scenario of configuration information of a current BWP according to an embodiment of the present application. As shown in FIG. 4, 4 resource block sets, RB-set0, RB-set1, RB-set2, and RB-set3, respectively, may be included in the current BWP. As shown in FIG. 4, RB-set0, RB-set1, RB-set2 and RB-set3 all include 106 physical resource blocks, wherein 106 physical resource blocks in RB-set0 are composed of physical resource blocks with physical resource block indexes of 0-105, 106 physical resource blocks in RB-set1 are composed of physical resource blocks with physical resource block indexes of 106-211, 106 physical resource blocks in RB-set2 are composed of physical resource blocks with physical resource block indexes of 212-317, and 106 physical resource blocks in RB-set3 are composed of physical resource blocks with physical resource block indexes of 318-423.

For another example, please refer to fig. 5, fig. 5 is a schematic diagram of another application scenario of the configuration information of the current BWP according to the embodiment of the present application. As shown in FIG. 5, 4 resource block sets (i.e., RB-set) may be included in the current BWP, RB-set0, RB-set1, RB-set2, and RB-set3, respectively. Wherein, RB-set0 can be composed of 106 physical resource blocks, which are respectively physical resource blocks with physical resource block indexes ranging from 0 to 105, RB-set1 can be composed of 103 physical resource blocks with physical resource block indexes ranging from 109 to 211, RB-set2 can be composed of 106 physical resource blocks which are respectively physical resource blocks with physical resource block indexes ranging from 212 to 317, RB-set3 can be composed of 103 physical resource blocks which are respectively physical resource blocks with physical resource block indexes ranging from 321 to 423. As shown in fig. 5, the physical resource blocks corresponding to the physical resource block indexes 106 to 108 and the physical resource blocks corresponding to the physical resource block indexes 318 to 320 do not belong to any of the above resource block sets.

Specifically, if the first resource indication value includes a first physical resource block index and a physical resource block length, the first frequency domain resource may be determined according to the first physical resource block index and the physical resource block length. For example, referring to fig. 4 together, if the first physical resource block index included in the first resource indication value is 1 and the physical resource block length is 4, the first frequency domain resource is 4 consecutive physical resource blocks corresponding to physical resource block indexes 1 to 4. For another example, if the first physical resource block index included in the first resource indication value is 213 and the physical resource block length is 4, the first frequency domain resource is 4 consecutive physical resource blocks corresponding to physical resource block indexes 213 to 216.

Optionally, if the first resource indication value includes an interleaving set, the physical resource block corresponding to each physical resource block index may be determined according to multiple physical resource block indexes included in the interleaving set, so as to serve as the first frequency domain resource. For example, please refer to fig. 4 together, it is assumed that the interleaving set included in the first resource indication value is interleaving set0, where the interleaving set0 is composed of physical

resource block indexes

0,10,20, …,420, that is, interleaving set 0= {0,10,20, …,420}, and thus, the physical resource block corresponding to each physical resource block index included in the interleaving set0 can be determined as the first frequency-domain resource.

S102, the terminal equipment receives a second high-level signaling sent by the base station.

In some possible embodiments, the terminal device may obtain, by receiving the second higher layer signaling sent by the base station, the candidate resource sending position included in the second higher layer signaling through parsing. The candidate resource sending position may be a candidate set bitmap, or the candidate resource sending position may also be a candidate set offset value, etc., which is not limited herein. The candidate set bitmap comprises at least one bit, and each bit in the at least one bit corresponds to each resource block set in a plurality of resource block sets included by the current BWP. And the candidate set offset value represents the relative offset position of the candidate resource block set and the resource block set where the first frequency domain resource is located. For convenience of description, the following embodiments of the present application will simply refer to the candidate set bitmap as a bitmap. It should be understood that the second frequency domain resource transmission position is used in combination with the first resource indication value to determine the second frequency domain resource for uplink channel access. And the second frequency domain resource is used for accessing the uplink channel when the first frequency domain resource is determined to be unavailable.

S103, determining a second frequency domain resource for accessing and transmitting uplink information of an uplink channel according to the candidate resource sending position in the second high-level signaling and the first resource indicated value included in the first high-level signaling.

In some possible embodiments, after analyzing the candidate resource sending position included in the second higher layer signaling, the terminal device may determine the second frequency domain resource used for uplink channel access according to the candidate resource sending position and the first resource indication value included in the first higher layer signaling.

Specifically, if the candidate resource sending position is a bitmap, at least one candidate resource block set may be determined from a plurality of resource block sets included in the current BWP according to a bit value on each bit in the bitmap. It should be understood that, if a certain terminal device is to be allocated a resource block set to which some physical resource blocks belong, it is only necessary to set the bit value of the corresponding bit to 1 in the bitmap, otherwise, the corresponding bit value is set to 0. Generally, when the uplink channel is the PUCCH, the candidate resource transmission position is a bitmap.

Optionally, if the candidate resource sending position is the candidate set offset value, at least one candidate resource block set may be determined from the multiple resource block sets included in the current BWP according to the resource block set where the first frequency-domain resource is located and the at least one candidate set offset value. It should be understood that when the first resource indication value is a first physical resource block index, the terminal device may determine a resource block set where the first frequency domain resource is located according to the first physical resource block index. Optionally, when the first resource indication value includes a first resource block set index and a resource block set length, the terminal device may determine, according to the first resource block set index and the resource block set length, at least one resource block set where the first frequency domain resource is located, which is not limited herein. In general, when the uplink channel is PUCCH or PUSCH, the candidate resource transmission position may be a candidate set offset value.

In some possible embodiments, after determining the at least one candidate resource block set, the second frequency domain resource may be determined from the at least one candidate resource block set further according to the first resource indication value.

Specifically, if the first resource indication value includes a first physical resource block index and a physical resource block length, one candidate resource block set except for the resource block set corresponding to the first physical resource block index may be determined from the at least one candidate resource block set to serve as the target resource block set. It should be understood that the target resource block set may be a candidate resource block set corresponding to a smallest resource block set index except a resource block set corresponding to the first physical resource block index, among the at least one candidate resource block set. Or, the target resource block set may also be a candidate resource block set randomly selected from at least one candidate resource block set except for the resource block set corresponding to the first physical resource block index, which is specifically determined according to an actual application scenario, and is not limited herein.

It should be understood that, according to the first physical resource block index and the plurality of physical resource blocks included in the resource block set corresponding to the first physical resource block index, the starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located may be determined. In other words, the starting physical resource block offset value is an offset value between a first physical resource block in the first frequency domain resource and a first physical resource block in a resource block set where the first frequency domain resource is located. And further, according to the offset value of the starting physical resource block and the length of the physical resource block, determining a corresponding physical resource block from the target resource block set to serve as a second frequency domain resource.

For example, please refer to fig. 6, fig. 6 is a schematic view of an application scenario of the second frequency domain resource provided in the embodiment of the present application. As shown in FIG. 6, the current BWP includes a total of 4 resource block sets, RB-set0, RB-set1, RB-set2, and RB-set3. Each resource block set includes 106 physical resource blocks. Specifically, 106 physical resource blocks in RB-set0 are composed of physical resource blocks with physical resource block indexes of 0-105, 106 physical resource blocks in RB-set1 are composed of physical resource blocks with physical resource block indexes of 106-211, 106 physical resource blocks in RB-set2 are composed of physical resource blocks with physical resource block indexes of 212-317, and 106 physical resource blocks in RB-set3 are composed of physical resource blocks with physical resource block indexes of 318-423. Assuming that a first resource indication value configured in a first higher layer signaling comprises a first physical resource block index and a physical resource block length, and a candidate resource sending position configured in a second higher layer signaling is a bitmap. The index of the first physical resource block is 107, the length of the physical resource block is 4, and the candidate resource transmission position is 1011. Therefore, according to the candidate resource transmission position 1011, the resource block sets RB-set0, RB-set2, and RB-set3 can be determined as candidate resource block sets. As shown in FIG. 6, according to the first physical resource block index 107 and the physical resource block length 4, the first frequency domain resource can be determined to be a physical resource block with physical resource block indexes 107-110 in the resource block set RB-set 1. It should be understood that, after at least one candidate resource block set (i.e., RB-set0, RB-set2, and RB-set 3) is determined, a candidate resource block set other than the resource block set corresponding to the first physical resource block index may be randomly selected from the at least one candidate resource block set as the target resource block set. For example, as shown in FIG. 6, RB-set0 may be determined as the target set of resource blocks, or RB-set2 may be determined as the target set of resource blocks, or sum RB-set3 may be determined as the target set of resource blocks. According to the first physical resource block index and a plurality of physical resource blocks included in a resource block set corresponding to the first physical resource block index, the initial physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located can be determined. As shown in FIG. 6, the resource block set where the first frequency domain resource is located is RB-set1, where RB-set1 is composed of physical resource blocks corresponding to physical resource block indexes of 106 to 211. Thus, from the first physical resource block index 107, it can be determined that the starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located is 1 (i.e. 107-106= 1). Further, according to the offset value 1 of the starting physical resource block and the length 4 of the physical resource block, a corresponding physical resource block can be determined from the target resource block set to serve as a second frequency domain resource. As shown in fig. 6, assuming that the target resource block set is RB-set0, the second frequency domain resources are physical resource blocks with physical resource block indexes corresponding to 1-4, assuming that the target resource block set is RB-set2, the second frequency domain resources are physical resource blocks with physical resource block indexes corresponding to 213-216, assuming that the target resource block set is RB-set3, the second frequency domain resources are physical resource block indexes with physical resource block indexes corresponding to 319-322.

For another example, please refer to fig. 7, fig. 7 is a schematic diagram of another application scenario of the second frequency domain resource provided in the embodiment of the present application. As shown in fig. 7, it is assumed that the first resource indication value configured in the first higher layer signaling includes a first physical resource block index and a physical resource block length, and the candidate resource transmission position configured in the second higher layer signaling is at least one candidate set offset value. The index of the first physical resource block is 1, the length of the physical resource block is 4, and the offset value of the candidate set is 1. As shown in FIG. 7, according to the first physical resource block index 1 and the physical resource block length 4, the first frequency domain resource can be determined to be a physical resource block with physical resource block indexes of 1-4 in the resource block set RB-set 0. Further, according to the resource block set RB-set0 where the first frequency domain resource is located and the candidate set offset value 1, the candidate resource block set can be determined to be RB-set1, and then the RB-set1 is determined to be the target resource block set. According to the first physical resource block index and a plurality of physical resource blocks included in a resource block set corresponding to the first physical resource block index, the initial physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located can be determined. As shown in FIG. 7, the resource block set where the first frequency domain resource is located is RB-set0, where RB-set0 is composed of physical resource blocks with physical resource block indexes ranging from 0 to 105. Therefore, according to the first physical resource block index 1, it can be determined that the starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located is 1 (i.e. 1-0=1). Further, according to the starting physical resource block offset value 1 and the physical resource block length 4, the corresponding physical resource block can be determined from the target resource block set RB-set1 to serve as a second frequency domain resource. As shown in fig. 7, in the target resource block set RB-set1, the second frequency domain resource is composed of physical resource blocks with physical resource block indexes of 107 to 110.

Optionally, if the first resource indication value further includes multiple candidate physical resource block indexes, after determining one or more candidate resource block sets as a target resource block set from at least one candidate resource block set, the physical resource block corresponding to the candidate physical resource block index existing in the target resource block set may also be determined as the second frequency domain resource. It should be understood that the candidate physical resource block indexes constitute an interlace set.

Specifically, if the uplink channel is the PUCCH, one candidate resource block set may be determined as the target resource block set from the at least one candidate resource block set. It should be understood that when the uplink channel is PUCCH, the candidate resource transmission position may be a bitmap, or the candidate resource transmission position may also be a candidate set offset value. When at least one candidate resource block set is determined according to the bitmap, one candidate resource block set can be randomly selected from the at least one candidate resource block set to serve as a target resource block set. When at least one candidate resource block set is determined according to the candidate set offset value, one candidate resource block set except the resource block set corresponding to the first physical resource block index can be determined from the at least one candidate resource block set to serve as a target resource block set.

For example, please refer to fig. 8, fig. 8 is a schematic diagram of another application scenario of the second frequency domain resource provided in the embodiment of the present application. As shown in fig. 8, it is assumed that the first resource indication value configured in the first higher layer signaling includes multiple candidate physical resource block indexes, i.e., an interlace set, and the candidate resource transmission position configured in the second higher layer signaling is a bitmap. The interlace set formed by the candidate physical resource block indexes is interlace set 0= {0,10,20, …,420}, and the candidate resource transmission position is 1011. Therefore, according to the candidate resource transmission position 1011, it is possible to determine the resource block sets RB-set0, RB-set2 and RB-set3 as candidate resource block sets, and further, it is possible to randomly select one candidate resource block set from among RB-set0, RB-set2 and RB-set3 as a target resource block set. As shown in fig. 5, assuming that the target resource block set is RB-set0, according to interlace set0, the physical resource block corresponding to the candidate physical resource block index existing in RB-set0 can be determined as the second frequency domain resource, that is, the second frequency domain resource is the physical resource block corresponding to physical

resource block index

0,10,20,30,40,50,60,70,80,90,100. Assuming that the target resource block set is RB-set2, according to the interleaving set0, the physical resource block corresponding to the candidate physical resource block index existing in RB-set2 may be determined as the second frequency domain resource, that is, the second frequency domain resource is the physical resource block corresponding to the physical resource block index of 220,230,240,250,260,270,280,290,300,310. Assuming that the target resource block set is RB-set3, according to the interleaving set0, the physical resource block corresponding to the candidate physical resource block index existing in RB-set3 can be determined as the second frequency domain resource, i.e., the second frequency domain resource is the physical resource block corresponding to the physical resource block index of 320,330,340,350,360,370,380,390,400,410,420.

If the uplink channel is the PUSCH, one or more candidate resource block sets may be determined as a target resource block set from at least one candidate resource block set. It should be appreciated that when the uplink channel is PUSCH, the candidate resource transmission position is a candidate set offset value.

If the PUSCH performs uplink channel access only in one resource block set, the first resource indication value may include a first physical resource block index and a physical resource block length, or the first resource indication value may include the first resource block set index and the resource block set length, and the resource block set length is 1. If the candidate resource sending position includes one candidate set offset value, the candidate resource block set determined according to the one candidate set offset value may be determined as the target resource block set. If the candidate resource transmission position includes a plurality of (2 or more than 2) candidate set offset values, one candidate resource block set may be randomly selected from a plurality of candidate resource block sets determined according to the candidate set offset values to serve as the target resource block set.

Optionally, if the PUSCH performs uplink channel access in multiple (two or more) resource block sets, the first resource indication value may include a first resource block set index and a resource block set length, and the resource block set length is greater than or equal to 2. If the candidate resource sending position includes one candidate set offset value, a group of candidate resource block sets determined according to the one candidate set offset value can be determined as a target resource block set. If the candidate resource transmission position includes a plurality of (2 or more than 2) candidate set offset values, a group of candidate resource block sets can be randomly selected from a plurality of groups of candidate resource block sets determined according to the candidate set offset values to serve as a target resource block set. It is to be understood that a set of candidate resource block sets consists of a plurality of candidate resource block sets.

For example, please refer to fig. 9, fig. 9 is a schematic diagram of another application scenario of the second frequency domain resource provided in the embodiment of the present application. As shown in fig. 9, it is assumed that the first resource indication value configured in the first higher layer signaling includes a first resource block set index, a resource block set length, and multiple candidate physical resource block indexes, and the candidate resource transmission position configured in the second higher layer signaling is a candidate set offset value. The first resource block set index is RB-set0, the resource block set length is 2, the interlace set formed by the multiple candidate physical resource block indexes is interlace set 0= {0,10,20, …,420}, and the candidate set offset value is 2. Therefore, according to the first resource block set index RB-set0 and the resource block set length 2, the first frequency domain resource can be determined to be within RB-set0 and RB-set1, and the target resource block set can be determined to be RB-set2 and RB-set3 by combining the candidate set offset value 2. Therefore, according to interlace set0, the physical resource blocks corresponding to the candidate physical resource block indexes existing in RB-set2 and RB-set3 can be determined as the second frequency domain resources, i.e., the second frequency domain resources are the physical resource blocks corresponding to the physical resource block index in RB-set2 of 220,230,240,250,260,270,280,290,300,310 and the physical resource block index in RB-set3 of 320,330,340,350,360,370,380,390,400,410,420.

Optionally, in some possible embodiments, the candidate resource transmission position included in the second higher layer signaling may further include a second resource block set index and a resource block set length. Therefore, the terminal equipment can directly determine the target resource block set according to the second resource block set index and the resource block set length. And then, in combination with the first resource indicated value included in the first high-level signaling, determining a second frequency domain resource from the target resource block set.

In this embodiment, the terminal device may obtain, by receiving a first higher layer signaling sent by the base station, that the first higher layer signaling includes a first resource indication value, where the first resource indication value is used to determine a first frequency domain resource used for uplink channel access. And obtaining the candidate resource sending position in the second high-level signaling by receiving the second high-level signaling sent by the base station. And determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value. And the second frequency domain resource is used for accessing the uplink channel under the condition that the first frequency domain resource is determined to be unavailable. By adopting the embodiment of the application, the success rate and the reliability of channel access can be improved.

Referring to fig. 10, fig. 10 is another flowchart illustrating an indication method of uplink channel resources according to an embodiment of the present application. The method provided by the embodiment of the present application can be explained by the following implementation manners provided in steps S201 to S205:

s201, the terminal equipment receives a first high-level signaling sent by the base station.

S202, the terminal equipment receives a second high-level signaling sent by the base station.

S203, according to the candidate resource sending position in the second high-level signaling and the first resource indicated value included in the first high-level signaling, determining a second frequency domain resource for accessing and transmitting the uplink information by the uplink channel.

The specific implementation manner of steps S201 to S203 may refer to the description of steps S101 to S103 in the embodiment corresponding to fig. 3, and is not described again here.

S204, the terminal equipment receives second indication information sent by the base station.

In some possible embodiments, the terminal device may obtain, by receiving the second indication information sent by the base station, that the second indication information includes the frequency domain resource occupation status through parsing. It should be understood that the terminal device may determine the frequency domain resources for uplink channel access according to the above frequency domain resource occupancy.

S205, if the terminal device determines that the first frequency domain resource is unavailable and the second frequency domain resource is available according to the frequency domain resource occupation situation, performing uplink channel access and transmitting uplink information in the second frequency domain resource.

In some possible embodiments, the frequency domain resource occupancy includes that the first frequency domain resource is available, wherein when the frequency domain occupancy is that the first frequency domain resource is available, the terminal device may perform uplink channel access in the first frequency domain resource. And when the frequency domain resource occupation situation is determined to be that the first frequency domain resource is unavailable and the second frequency domain resource is available, the terminal equipment can perform uplink channel access and transmit uplink information in the second frequency domain resource.

Optionally, in some possible embodiments, the second indication information may further include a channel occupation time. It should be understood that the above-mentioned channel occupation time can be used to determine the channel access mode. Specifically, when the terminal device determines that the channel access time is within the channel occupation time and the frequency domain resource occupation condition is that the first frequency domain resource is available, the terminal device may perform uplink channel access and transmit uplink information in the first frequency domain resource by using the first channel access mode. When the terminal equipment determines that the channel access time is within the channel occupation time, the frequency domain resource occupation condition is that the first frequency domain resource is unavailable, and the second frequency domain resource is available, the terminal equipment can adopt the first channel access mode to carry out uplink channel access and transmit uplink information in the second frequency domain resource. And when the terminal equipment determines that the channel access time is not within the channel occupation time and the frequency domain resource occupation condition is that the first frequency domain resource is available, the terminal equipment can adopt a second channel access mode to carry out uplink channel access and transmit uplink information in the first frequency domain resource. When the terminal equipment determines that the channel access time is not within the channel occupation time, the frequency domain resource occupation condition is that the first frequency domain resource is unavailable, and the second frequency domain resource is available, the terminal equipment can adopt a second channel access mode to carry out uplink channel access and transmit uplink information in the second frequency domain resource. Wherein, first channel access mode can be the access of Type2 channel, and second channel access mode can be the access of Type2 channel.

Optionally, in some possible embodiments, the second indication information may further include a channel access method. Specifically, when the terminal device determines that the frequency domain resource occupation is the first frequency domain resource available, the terminal device may perform uplink channel access and transmit uplink information in the first frequency domain resource by using the indicated channel access manner. When the terminal device determines that the frequency domain resource occupation condition is that the first frequency domain resource is unavailable and the second frequency domain resource is available, the terminal device can perform uplink channel access and transmit uplink information in the second frequency domain resource by adopting the indicated channel access mode. The channel access mode may include a first channel access mode or a second channel access mode.

In this embodiment, the terminal device may obtain, by receiving a first higher layer signaling sent by the base station, that the first higher layer signaling includes a first resource indication value, where the first resource indication value is used to determine a first frequency domain resource used for uplink channel access. And obtaining the candidate resource sending position included in the second high-level signaling by receiving the second high-level signaling sent by the base station. And determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value. And the second frequency domain resource is used for accessing the uplink channel under the condition that the first frequency domain resource is determined to be unavailable. Further, the terminal device receives second indication information sent by the base station, and if the first frequency domain resource is determined to be unavailable and the second frequency domain resource is available according to the frequency domain resource occupation situation, performs uplink channel access in the second frequency domain resource. By adopting the embodiment of the application, the success rate and the reliability of channel access can be improved, and the performance of a communication system can be improved.

Referring to fig. 11, fig. 11 is a schematic structural diagram of an apparatus for indicating uplink channel resources according to an embodiment of the present application. The apparatus for indicating uplink channel resources provided in the embodiment of the present application is a terminal device, where the apparatus includes:

a transceiver unit 31, configured to receive a first high-level signaling sent by a base station, where the first high-level signaling includes a first resource indication value, and the first resource indication value is used to determine a first frequency domain resource used for accessing an uplink channel and transmitting uplink information;

the transceiver unit 31 is further configured to receive a second high-level signaling sent by the base station, where the second high-level signaling includes a candidate resource sending location;

a processing unit 32, configured to determine a second frequency domain resource used for uplink channel access according to the candidate resource sending position and the first resource indication value, where the second frequency domain resource is a frequency domain resource used for uplink channel access and uplink information transmission.

In some possible embodiments, the candidate resource sending position includes a candidate set bitmap, the candidate set bitmap includes at least one bit, and each bit of the at least one bit corresponds to each resource block set of a plurality of resource block sets included in the current carrier bandwidth or BWP, respectively;

the processing unit 32 is specifically configured to:

In some possible embodiments, the candidate resource sending position includes at least one candidate set offset value, where the candidate set offset value represents a relative offset position between a candidate resource block set and a resource block set where the first frequency domain resource is located;

the processing unit 32 is specifically configured to:

In some possible embodiments, the first resource indication value includes a first physical resource block index;

the processing unit 32 is specifically configured to:

In some possible embodiments, the first resource indication value includes a first resource block set index and a resource block set length;

the processing unit 32 is specifically configured to:

In some possible embodiments, the first resource indication value includes a first physical resource block index and a physical resource block length;

the processing unit 32 is specifically configured to:

and determining a corresponding physical resource block from the target resource block set according to the initial physical resource block deviation value and the physical resource block length to serve as a second frequency domain resource.

In some possible embodiments, the first resource indication value includes a plurality of candidate physical resource block indexes;

the processing unit 32 is specifically configured to:

In some possible embodiments, the transceiver unit 31 is further configured to receive first indication information sent by the base station, where the first indication information is used to indicate a plurality of resource block sets included in a current carrier bandwidth or BWP and a plurality of physical resource blocks included in each resource block set.

In some possible embodiments, the transceiver unit 31 is further configured to receive second indication information sent by the base station, where the second indication information includes a frequency domain resource occupation situation;

the processing unit 32 is further configured to perform uplink channel access in the second frequency domain resource if it is determined that the first frequency domain resource is unavailable and the second frequency domain resource is available according to the frequency domain resource occupation condition.

In some possible embodiments, the second indication information further includes a channel occupation time;

the processing unit 32 is further configured to:

In some possible embodiments, the second indication information further includes a channel access method;

the processing unit 32 is further configured to:

Referring to fig. 12, fig. 12 is another schematic structural diagram of an apparatus for indicating uplink channel resources according to an embodiment of the present application. The apparatus for indicating uplink channel resources provided in the embodiment of the present application is a base station, and the apparatus includes a transceiver unit 41 and a processing unit 42, where:

the transceiver unit 41 is configured to send a first high-level signaling to a terminal device, where the first high-level signaling includes a first resource indication value, and the first resource indication value is used to determine a first frequency domain resource used for uplink channel access;

the transceiver unit 41 is further configured to send a second higher layer signaling to the terminal device, where the second higher layer signaling includes a candidate resource sending position, and the candidate resource sending position is used to determine, in combination with the first resource indication value, a second frequency domain resource used for uplink channel access, where the second frequency domain resource is a frequency domain resource used for uplink channel access when the first frequency domain resource is unavailable.

In some possible embodiments, the candidate resource sending position includes a candidate set bitmap, the candidate set bitmap includes at least one bit, each bit of the at least one bit corresponds to each of a plurality of resource block sets included in the current carrier bandwidth or BWP, and a bit value on each bit of the candidate set bitmap is used to determine at least one candidate resource block set from the plurality of resource block sets included in the current carrier bandwidth or BWP.

In some possible embodiments, the candidate resource sending position includes at least one candidate set offset value, where the candidate set offset value represents a relative offset position between a candidate resource block set and a resource block set in which the first frequency-domain resource is located, and the candidate set offset value is used in combination with the resource block set in which the first frequency-domain resource is located to determine at least one candidate resource block set from a plurality of resource block sets included in a current carrier bandwidth or BWP.

In some possible embodiments, the first resource indication value includes a first physical resource block index, and the first physical resource block index is used to determine a resource block set in which the first frequency domain resource is located.

In some possible embodiments, the first resource indication value includes a first resource block set index and a resource block set length, and the first resource block set index and the resource block set length are used to determine at least one resource block set in which the first frequency domain resource is located.

In some possible embodiments, the first resource indication value includes a first physical resource block index and a physical resource block length, the first physical resource block index is configured to determine, from the at least one candidate resource block set, one candidate resource block set other than the resource block set corresponding to the first physical resource block index as a target resource block set, the first physical resource block index is further configured to determine a starting physical resource block offset value of the first frequency-domain resource in the resource block set where the first frequency-domain resource is located, and the starting physical resource block offset value is configured to be combined with the physical resource block length to determine a corresponding physical resource block from the target resource block set as a second frequency-domain resource.

In some possible embodiments, the first resource indication value includes a plurality of candidate physical resource block indexes, where the plurality of candidate physical resource block indexes are used to determine a physical resource block corresponding to a candidate physical resource block index existing in a target resource block set as the second frequency domain resource, and the target resource block set is one or more candidate resource block sets in the at least one candidate resource block set.

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

In some possible embodiments, the second indication information further includes a channel occupation time, and the second indication information is used to indicate that, when the channel access time is within the channel occupation time, the uplink channel access is performed in the second frequency domain resource by using the first channel access method, and when the channel access time is not within the channel occupation time, the uplink channel access is performed in the second frequency domain resource by using the second channel access method.

In some possible embodiments, the second indication information further includes a channel access method, and the second indication information is used to indicate that uplink channel access is performed in the second frequency domain resource according to the channel access method.

Referring to fig. 13, fig. 13 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure. The apparatus may be the terminal device in the first embodiment, and the apparatus may be configured to implement the method for indicating the uplink channel resource implemented by the terminal device. The device includes: a processor 51, a memory 52, a transceiver 53.

The memory 51 includes, but is not limited to, RAM, ROM, EPROM, or CD-ROM, and the memory 51 is used to store relevant instructions and data. The memory 51 stores elements, executable modules or data structures, or subsets thereof, or expanded sets 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. 13, 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 of receiving the first higher layer signaling, receiving the second higher layer signaling, and the like, which are involved in the above embodiments.

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.

The embodiment of the present application further provides a computer program product, and when executed by a computer, the computer program product implements the method or the steps executed 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 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. 14, fig. 14 is a schematic view of another structure of an apparatus according to an embodiment of the present disclosure. The apparatus may be the base station in the above embodiment, and the apparatus may be configured to implement the method implemented by the base station in the above embodiment. The device includes: a processor 61, a memory 62, a transceiver 63.

Memory 61 includes, but is not limited to, RAM, ROM, EPROM or CD-ROM, and memory 61 is used to store the relevant instructions and data. The memory 61 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:

Only one memory is shown in fig. 14, 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 transmitting a first higher layer signaling, transmitting a second higher layer signaling, and so on.

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.

In particular applications, 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.

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 method for indicating uplink channel resources provided in each step in fig. 3 and 10 is implemented, for specific reference, the implementation manner provided in each step may be referred to, and details of the implementation manner 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, for example, 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 but may alternatively include other steps or elements not expressly 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 any and all possible combinations of one or more of the associated listed items and includes such combinations. 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 each flow and/or block of the flowchart and/or the structural diagram of the method, and the combination of the flow and/or block in the flowchart and/or the block diagram can be specifically 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 diagram block or blocks. 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. A method for indicating uplink channel resources, the method comprising:

determining a second frequency domain resource for uplink channel access according to the candidate resource sending position and the first resource indicated value, wherein the second frequency domain resource is a frequency domain resource for uplink channel access and uplink information transmission;

wherein the method further comprises:

receiving second indication information sent by the base station, wherein the second indication information comprises frequency domain resource occupation conditions and channel occupation time;

if the first frequency domain resource is determined to be unavailable according to the frequency domain resource occupation condition and the second frequency domain resource is available, performing uplink channel access in the second frequency domain resource;

wherein the performing uplink channel access in the second frequency domain resource includes:

2. The method of claim 1, wherein the candidate resource transmission position comprises a candidate set bitmap, wherein the candidate set bitmap comprises at least one bit, and wherein each bit of the at least one bit corresponds to each resource block set of a plurality of resource block sets included in a current carrier bandwidth or a partial bandwidth BWP, respectively;

determining at least one candidate resource block set from a plurality of resource block sets included in the current carrier bandwidth or BWP according to bit values of each bit in the candidate set bitmap;

3. The method of claim 1, wherein the candidate resource transmission location comprises at least one candidate set offset value representing a relative offset location of a candidate set of resource blocks from a set of resource blocks in which the first frequency domain resource is located;

4. The method according to claim 2 or 3, wherein the first resource indication value comprises a first physical resource block index and a physical resource block length;

the determining the second frequency domain resource from the at least one candidate resource block set according to the first resource indication value includes:

5. The method according to claim 2 or 3, wherein the first resource indication value comprises a plurality of candidate physical resource block indices;

and taking the physical resource block corresponding to the candidate physical resource block index in the target resource block set as a second frequency domain resource.

6. A method according to claim 2 or 3, characterized in that the method further comprises:

receiving first indication information sent by the base station, where the first indication information is used to indicate a plurality of resource block sets included in a current carrier bandwidth or BWP and a plurality of physical resource blocks included in each resource block set.

7. The method according to any one of claims 1-3, wherein the second indication information further comprises a channel access mode;

8. A method for indicating uplink channel resources, the method comprising:

sending a second high-level signaling to the terminal equipment, wherein the second high-level signaling comprises a candidate resource sending position, and the candidate resource sending position is used for being combined with the first resource indicated value to determine a second frequency domain resource for uplink channel access, wherein the second frequency domain resource is a frequency domain resource for uplink channel access and uplink information transmission;

wherein the method further comprises:

sending second indication information to terminal equipment, wherein the second indication information comprises frequency domain resource occupation and channel occupation time, and the frequency domain resource occupation is used for using a second frequency domain resource for uplink channel access when the first frequency domain resource is determined to be unavailable and the second frequency domain resource is available;

wherein the using the second frequency domain resource for uplink channel access comprises: when the channel access time is within the channel occupation time, performing uplink channel access in the second frequency domain resource by adopting a first channel access mode; and when the channel access time is not within the channel occupation time, performing uplink channel access in the second frequency domain resource by adopting a second channel access mode.

9. The method of claim 8, wherein the candidate resource transmission position comprises a candidate set bitmap, wherein the candidate set bitmap comprises at least one bit, wherein each bit of the at least one bit corresponds to each resource block set of a plurality of resource block sets included in a current carrier bandwidth or BWP, and wherein a bit value of each bit of the candidate set bitmap is used to determine at least one candidate resource block set from the plurality of resource block sets included in the current carrier bandwidth or BWP.

10. The method of claim 8, wherein the candidate resource transmission location comprises at least one candidate set offset value representing a relative offset location of a candidate set of resource blocks from a set of resource blocks in which the first frequency-domain resource is located, the candidate set offset value being used in combination with the set of resource blocks in which the first frequency-domain resource is located to determine at least one candidate set of resource blocks from a plurality of sets of resource blocks comprised by a current carrier bandwidth or BWP.

11. The method according to claim 9 or 10, wherein the first resource indication value comprises a first physical resource block index and a physical resource block length, the first physical resource block index is used to determine, from the at least one candidate resource block set, one candidate resource block set except the resource block set corresponding to the first physical resource block index as a target resource block set, the first physical resource block index is also used to determine a starting physical resource block offset value of the first frequency domain resource in the resource block set where the first frequency domain resource is located, and the starting physical resource block offset value is used in combination with the physical resource block length to determine a corresponding physical resource block from the target resource block set as a second frequency domain resource.

12. The method according to claim 9 or 10, wherein the first resource indication value comprises a plurality of candidate physical resource block indexes, and the plurality of candidate physical resource block indexes are used for determining a physical resource block corresponding to a candidate physical resource block index existing in a target resource block set as the second frequency domain resource, and the target resource block set is one or more candidate resource block sets in the at least one candidate resource block set.

13. The method according to claim 9 or 10, characterized in that the method further comprises:

and sending first indication information to the terminal equipment, wherein the first indication information is used for indicating a plurality of resource block sets included in the current carrier bandwidth or BWP and a plurality of physical resource blocks included in each resource block set.

14. The method according to any one of claims 8 to 10, wherein the second indication information further includes a channel access method, and the second indication information is used for indicating that uplink channel access is performed in the second frequency domain resource according to the channel access method.

15. An apparatus for indicating uplink channel resources, the apparatus comprising:

a transceiver unit, configured to receive a first high-level signaling sent by a base station, where the first high-level signaling includes a first resource indication value, and the first resource indication value is used to determine a first frequency domain resource used for uplink channel access;

the transceiver unit is further configured to receive a second high-level signaling sent by the base station, where the second high-level signaling includes a candidate resource sending position;

a processing unit, configured to determine, according to the candidate resource sending position and the first resource indication value, a second frequency domain resource used for uplink channel access, where the second frequency domain resource is a frequency domain resource used for uplink channel access when it is determined that the first frequency domain resource is unavailable;

wherein the transceiver unit is further configured to:

16. An apparatus for indicating uplink channel resources, the apparatus comprising:

a transceiver unit, configured to send a first high-level signaling to a terminal device, where the first high-level signaling includes a first resource indication value, and the first resource indication value is used to determine a first frequency domain resource used for uplink channel access;

the transceiver unit is configured to send a second high-level signaling to the terminal device, where the second high-level signaling includes a candidate resource sending position, and the candidate resource sending position is used to be combined with the first resource indication value to determine a second frequency domain resource used for uplink channel access, where the second frequency domain resource is a frequency domain resource used for uplink channel access when the first frequency domain resource is unavailable;

wherein the transceiver unit is further configured to:

17. A terminal device, comprising a processor and a memory, the processor and the memory 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 of claims 1-7.

18. A base station comprising a processor and a memory, said processor and memory 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 of claims 8-14.

19. 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 of claims 1-7 or to perform the method according to any of claims 8-14.

20. A communication system, characterized in that the communication system comprises a terminal device and a base station, the terminal device being a terminal device according to claim 17, the base station being a base station according to claim 18.