CN111107517B

CN111107517B - Communication resource configuration method, device, terminal and readable storage medium

Info

Publication number: CN111107517B
Application number: CN201911417569.7A
Authority: CN
Inventors: 张晋瑜; 曲鑫; 周化雨
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2022-02-11
Anticipated expiration: 2039-12-31
Also published as: WO2021135264A1; CN111107517A

Abstract

The embodiment of the application provides a method, a device, a terminal and a readable storage medium for configuring communication resources, wherein the method comprises the following steps: a receiving terminal searches for a discovery resource corresponding to a resource position on a PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool; acquiring discovery information on the found discovery resource; by implementing the embodiment of the application, discovery resources can be borne in the PSCCH/PSSCH resource pool, and the utilization rate of the channel resources is improved.

Description

Communication resource configuration method, device, terminal and readable storage medium

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for configuring a communication resource, a terminal, and a readable storage medium.

Background

A Device-to-Device (D2D) using Long Term Evolution (LTE) technology designs a dedicated discovery channel in a physical layer for establishing unicast and multicast communication (session). Wherein, the resource parameter of the discovery resource in the discovery channel is indicated by the preconfiguration or the base station. A vehicle to an evolution (V2X) using a New Radio (NR) technology also needs a discovery resource function to implement unicast and multicast communication establishment. However, if a dedicated discovery channel is designed in the physical layer, channel resources cannot be fully utilized.

Disclosure of Invention

In a first aspect, an embodiment of the present application provides a method for configuring a communication resource, where the method is used to configure a discovery resource in an internet of vehicles V2X system, and the method includes: a receiving terminal searches for a discovery resource corresponding to the resource position on a PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool; and the receiving terminal acquires the discovery information on the found discovery resource.

In one implementation, the resource location indicated by the discovery resource indication information includes: a time domain resource location of the discovery resource, and/or a frequency domain resource location of the discovery resource.

In one implementation, the granularity of the frequency domain resource location indication is the same as the granularity of the PSCCH/PSCCH resource pool.

In one implementation, the discovery resource indication information is pre-configured in the receiving terminal.

In one implementation, the discovery resource indication information is received from a base station.

In one implementation, the time domain resource location is the location of at least one target time slot in a PSCCH/PSCCH resource pool selected according to a fixed time domain rule from the kth time slot in each period; the frequency domain resource position is the position of the target frequency domain resource selected from each target time slot according to a fixed frequency hopping rule.

In one implementation, the time domain resource location is a location of the discovery resource with respect to a time offset of a synchronization signal block S-SSB; and the frequency domain resource position is the position of the discovery resource relative to the frequency domain offset of the S-SSB.

In one implementation, the discovery resource indication information is determined according to a system master information block SL-MIB in a synchronization signal block S-SSB, and a resource location of the discovery resource is indicated through the SL-MIB.

In an implementation manner, the discovery resource indication information is obtained according to a table entry index look-up table, the table entry index is determined according to the SL-MIB, and a table corresponding to the table entry index includes a resource parameter of the discovery resource.

In one implementation, the discovery resource indication information is determined according to a system information block SL-SIB indicated by the SL-MIB, the SL-MIB indicates a position of the SL-SIB, and the discovery resource indication information is carried in the SL-SIB bearer at the position of the SL-SIB.

In one implementation, the discovery resource indication information is determined according to a resource parameter of the discovery resource carried by the SL-SIB.

In an implementation manner, the discovery resource indication information is obtained according to a table entry index look-up table, the table entry index is determined according to the SL-SIB, and a table corresponding to the table entry index includes a resource parameter of the discovery resource.

In a second aspect, an embodiment of the present application provides a method for configuring a communication resource, where the method is used to configure a discovery resource in an internet of vehicles V2X system, and the method includes: a sending terminal searches for a discovery resource corresponding to a resource position on a PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool; and the sending terminal sends the discovery information on the found discovery resource.

In one implementation, the discovery resource indication information is carried by a system master information block SL-MIB in a synchronization signal block S-SSB, and the SL-MIB indicates a resource location of the discovery resource.

In an implementation manner, the discovery resource indication information is obtained by table look-up according to table entry indexes, the table entry indexes are carried by the SL-MIB, and a table corresponding to the table entry indexes includes resource parameters of the discovery resource.

In one implementation, the discovery resource indication information is carried by a system information block SL-SIB indicated by a SL-MIB, the SL-MIB indicates a position of the SL-SIB, and the discovery resource indication information is carried in the SL-SIB at the position of the SL-SIB.

In one implementation, the discovery resource indication information is a resource parameter of the discovery resource carried by the SL-SIB.

In an implementation manner, the discovery resource indication information is obtained according to a table entry index lookup table, the table entry index is carried by SL-SIB, and a table corresponding to the table entry index includes a resource parameter of the discovery resource.

In a third aspect, an embodiment of the present application provides a method for configuring a communication resource, where the method is used to configure a discovery resource in an internet of vehicles V2X system, and the method includes: the receiving terminal searches for the discovery resource corresponding to the S-SSB according to the association relation between the synchronization signal block S-SSB and the discovery resource; and the receiving terminal acquires the discovery information on the found discovery resource.

In one implementation, each S-SSB is associated with one or a set of discovery resources; or, a group of S-SSBs is associated with one or a group of discovery resources; wherein, the set of discovery resources comprises two or more discovery resources.

In one implementation, if N S-SSBs have a quasi-co-located QCL relationship, and N is a positive integer greater than or equal to 2, it is determined that discovery resources associated with the N S-SSBs also have the same QCL relationship.

In an implementation manner, if it is determined that the discovery resources associated with the respective N S-SSBs also have the same QCL relationship, obtaining discovery information on the found discovery resources further includes: and merging the discovery information acquired from the discovery resources associated with the N S-SSBs respectively.

In an implementation manner, if the N S-SSBs have the QCL relationship, it is determined that the N S-SSBs associate with a target discovery resource, where the target discovery resource is any one or any group of N or N groups of discovery resources associated with the N S-SSBs, and N is a positive integer greater than or equal to 2.

In an implementation manner, if N/M sets of S-SSBs are included in the N S-SSBs, each set of S-SSBs has a QCL relationship between the S-SSBs, and the QCL relationship is fixed and unchanged, each set of S-SSBs is associated with one or one set of discovery resources, where N is a positive integer greater than or equal to 2, and M is a repetition number.

In a fourth aspect, an embodiment of the present application provides a method for configuring a communication resource, where the method is used to configure a discovery resource in an internet of vehicles V2X system, and the method includes: and the sending terminal selects the target discovery resource to send discovery information according to the incidence relation between the synchronization signal block S-SSB and the discovery resource.

In one implementation, if the N S-SSBs have the QCL relationship, selecting the target discovery resource to send the discovery information includes: and randomly selecting one or one group from N or N groups of discovery resources associated with the N S-SSBs, and sending discovery information as a target discovery resource.

In a fifth aspect, an embodiment of the present application provides an apparatus for configuring a communication resource, where the configuring of the communication resource includes:

the searching unit is used for searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool;

and the obtaining unit is used for obtaining the discovery information on the found discovery resource.

In a sixth aspect, an embodiment of the present application provides an apparatus for configuring a communication resource, where the configuring of the communication resource includes:

and the sending unit is used for sending the discovery information on the found discovery resource.

In a seventh aspect, an embodiment of the present application provides an apparatus for configuring a communication resource, where the configuring of the communication resource includes:

the searching unit is used for searching the discovery resource corresponding to the S-SSB according to the incidence relation between the synchronization signal block S-SSB and the discovery resource;

In an eighth aspect, an embodiment of the present application provides an apparatus for configuring a communication resource, where the configuring of the communication resource includes:

and the sending unit is used for selecting the target discovery resource to send the discovery information according to the incidence relation between the synchronization signal block S-SSB and the discovery resource.

In a ninth aspect, an embodiment of the present application provides a receiving terminal, where the receiving terminal includes:

a memory comprising computer readable instructions;

a processor coupled to the memory, the processor being configured to execute the computer-readable instructions to cause the receiving terminal to perform the method for configuring communication resources of the first aspect.

In a tenth aspect, an embodiment of the present application provides a sending terminal, where the sending terminal includes:

a memory comprising computer readable instructions;

a processor coupled to the memory for executing the computer readable instructions to cause the transmitting terminal to perform the method for configuring communication resources of the second aspect.

In an eleventh aspect, an embodiment of the present application provides a receiving terminal, including:

a memory comprising computer readable instructions;

a processor coupled to the memory, the processor being configured to execute the computer-readable instructions to cause the receiving terminal to perform the method for configuring communication resources of the third aspect.

In a twelfth aspect, an embodiment of the present application provides a sending terminal, where the sending terminal includes:

a memory comprising computer readable instructions;

a processor coupled to the memory, the processor configured to execute the computer-readable instructions to cause the sending terminal to perform the method for configuring communication resources of the fourth aspect.

In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where one or more instructions are stored, and the one or more instructions are adapted to be loaded by a processor and execute the method for configuring communication resources according to the first aspect.

In a fourteenth aspect, the present application provides a computer-readable storage medium, where one or more instructions are stored, and the one or more instructions are adapted to be loaded by a processor and execute the method for configuring communication resources according to the second aspect.

In a fifteenth aspect, the present application provides a computer-readable storage medium, which stores one or more instructions adapted to be loaded by a processor and execute the method for configuring communication resources according to the third aspect.

In a sixteenth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores one or more instructions adapted to be loaded by a processor and execute the method for configuring communication resources of the fourth aspect.

In the embodiment of the application, a receiving terminal searches for a discovery resource corresponding to a resource position on a PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a target resource in a PSCCH/PSSCH resource pool; the receiving terminal acquires discovery information on the found discovery resources; therefore, the embodiment of the application can realize the bearing of discovery resources in the PSCCH/PSSCH resource pool and improve the utilization rate of the channel resources.

Drawings

In order to more clearly illustrate the technical solutions of 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 some embodiments of the present application, and it is obvious for a person of ordinary skill in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic diagram of a configuration scheme of a communication resource according to an embodiment of the present application;

fig. 2 is a flowchart illustrating a method for configuring communication resources according to an embodiment of the present application;

fig. 3 is a schematic diagram of discovery resources provided in an embodiment of the present application;

fig. 4 is a schematic diagram of a discovery resource provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a discovery resource provided in an embodiment of the present application;

fig. 6 is a schematic diagram of a discovery resource provided in an embodiment of the present application;

fig. 7 is a flowchart illustrating a method for configuring communication resources according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an association provided in an embodiment of the present application;

FIG. 9 is a schematic diagram of an association provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of an apparatus for configuring communication resources according to an embodiment of the present application;

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

fig. 12 is a schematic structural diagram of an apparatus for configuring communication resources according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of an apparatus for configuring communication resources according to an embodiment of the present application;

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

fig. 15 is a schematic structural diagram of a sending terminal according to an embodiment of the present application;

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

fig. 17 is a schematic structural diagram of a transmitting terminal 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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. In addition, the features in the embodiments and the examples described below may be combined with each other without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be understood that the term "and/or" as used herein is meant to encompass any and all possible combinations of one or more of the associated listed items.

A vehicle to an evolution (V2X) network adopting a New Radio (NR) technology needs to discover (discovery) a resource function to implement unicast and multicast communication establishment and other functions. The function is carried by the existing Physical Channel/data Channel (PSCCH/PSCCH) Physical Channel. Specifically, the PSCCH/PSCCH channel resource at a specific time-frequency position is used to carry discovery information. That is, the transmitting terminal (Tx UE, also referred to as transmitting UE) may transmit discovery information on PSCCH/PSCCH on a specific time-frequency resource location, and the receiving terminal (Rx UE, also referred to as receiving UE) may obtain discovery information on the specific time-frequency resource location. Referring to fig. 1, fig. 1 is a schematic diagram of a configuration scheme of a communication resource according to an embodiment of the present application. The grid in the figure is used to represent the PSCCH/PSCCH resource pool, each grid representing a PSCCH/PSCCH resource. The filled color grid represents a resource for transmitting discovery information, and the blank grid represents a resource for transmitting other data. In addition, unlike LTE D2D which transmits synchronization signals in all directions, the synchronization signal of NR V2X requires a directional beam (beam) to be considered, and thus a plurality of synchronization signal blocks (Sidelink SS/PBCH block, S-SSB) are introduced to implement beam repetition (beam repetition) or beam scanning (beam sweeping). Accordingly, the discovery resource should have a certain directionality. Therefore, it is necessary to consider how to associate the directional S-SSB and discovery resources.

In this application, a receiving terminal and a transmitting terminal may refer to various forms of user equipment, access terminal, subscriber unit, subscriber Station, Mobile Station (MS), remote Station, remote terminal, Mobile device, user terminal, terminal device (terminal equipment), wireless communication device, user agent, or user equipment, etc. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G Network, or a terminal device in a Public Land Mobile Network (PLMN) for future evolution, and the like, which are not limited in this embodiment.

Based on the above scheme, the embodiment of the application provides a method for configuring communication resources. Referring to fig. 2, fig. 2 is a flowchart illustrating a method for configuring communication resources according to an embodiment of the present application, where the method includes, but is not limited to, the following steps:

s201: and the receiving terminal searches for the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool.

The resource position indicated by the discovery resource indication information comprises a time domain resource position of the discovery resource and/or a frequency domain resource position of the discovery resource; the time domain resource position is the position of a target time slot in a control channel/data channel PSCCH/PSSCH resource pool, the frequency domain resource position is the position of a target frequency domain resource in the target time slot, and the granularity indicated by the frequency domain resource position is the same as the granularity of the PSCCH/PSSCH resource pool. The discovery resource indication information may further include a repetition number, a period, and the like.

Further, in specific implementation, the base station may indicate the discovery resource indication information according to an actual application requirement, where the device providing the base station function in the 5G NR includes a node b (gnb) that continues to evolve; the discovery resource indication information may also be preconfigured in the sending terminal or the receiving terminal. The examples of the present application are not intended to be limiting, and several possible implementations are shown below.

In one implementation, a base station indicates a resource parameter of a set of discovery resources as discovery resource indication information; and/or pre-configuring a resource parameter of a set of discovery resources in the sending terminal or the receiving terminal as discovery resource indication information. Therefore, the sending terminal searches for the discovery resource corresponding to the resource location on the PSCCH/PSCCH physical channel according to the resource location indicated by the discovery resource indication information, so as to send the discovery information on the discovery resource. And the receiving terminal searches the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information. The resource parameters of the discovery resource include, but are not limited to, a time domain resource location, a frequency domain resource location, a repetition number, a period, and the like. The time domain resource position is the position of at least one target time slot in a PSCCH/PSSCH resource pool which is selected from the Kth time slot in each period according to a fixed time domain rule; the frequency domain resource position is the position of the target frequency domain resource selected from each target time slot according to a fixed frequency hopping rule. Specifically, the target timeslot position may be determined by a period and a time domain offset, for example, in a PSCCH/PSCCH resource pool, starting from the K1 th timeslot in each period, L1 timeslots are selected as the target timeslot according to a fixed time domain rule. Wherein, the fixed time domain rule is not limited, such as continuously selecting a target time slot; and if the target time slot is selected every k time slots, the value of k is a positive integer which is greater than or equal to 1. And secondly, K1 and L1 are positive integers, and the values of the positive integers can be set in a self-defined mode according to requirements, for example, K1 is a positive integer of 2, 3 and the like, and L1 is a positive integer of 2, 3 and the like. Further, target frequency domain resources are selected from each target time slot according to a fixed frequency hopping rule, if the M1 th frequency domain resource is selected as the target frequency domain resource in each target time slot, the fixed frequency hopping rule is determined by the value of M1, and frequency hopping is achieved by carrying out value taking on M1 according to the fixed rule; if the value of M1 is positive integers of 0, 1, 2, 3 and … which are sequentially increased; if M1 takes on even

numbers

0, 2, 4, …; also for example, M1 takes on odd numbers of 1, 3, 5, …, and so on.

For example, referring to fig. 3, if the periodicity in PSCCH/PSCCH physical channel is 160ms, K1 equals 3, L1 equals 3; then 3 consecutive slots are selected as the target slot starting from the 3 rd slot in each cycle. If the 3 rd time slot is used as the first target time slot, the 4 th time slot is used as the second target time slot, and the 5 th time slot is used as the third target time slot. Then the frequency domain resource with M1 equal to 0 is selected as the target frequency domain resource from the first target time slot, the frequency domain resource with M1 equal to 1 is selected as the target frequency domain resource from the second target time slot, and the frequency domain resource with M1 equal to 2 is selected as the target frequency domain resource from the third target time slot.

In one implementation, the discovery resource indication Information is determined according to a system Master Information Block (SL-MIB) in the synchronization signal Block S-SSB, and the SL-MIB is used to indicate the resource location of the discovery resource. Specifically, since the available information bits of the SL-MIB are relatively limited, in the communication protocol of 3GPP, the resource parameters of the discovery resource are defined in the form of a table, and the table can be stored in the storage device of the receiving terminal or the transmitting terminal. The sending terminal selects a target table item index from the table according to the actual application requirement, and searches the resource parameters of a group of corresponding discovery resources in the table according to the target table item index to serve as discovery resource indication information. And then according to the resource position indicated by the discovery resource indication information, searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel, so as to send the discovery information on the discovery resource. And the sending terminal loads the target table entry index in the SL-MIB in the S-SSB. And then after the receiving terminal detects the S-SSB, the resource parameters of a group of discovery resources corresponding to the table are searched by the target table entry index in the SL-MIB and serve as discovery resource indication information. And then searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information. One possible tabular form is shown below.

TABLE 1 resource parameters of discovery resources

Entry index	Time domain resource location	Frequency domain resource location	Period of time	Number of repetitions
					00
01
					…

Each table entry index corresponds to a resource parameter of a set of discovery resources, and the table entry index can be represented by 00, 01, and the like. The indication mode of the time domain resource location is not limited, for example, the indication mode can be indicated by the absolute time offset in each period; or may be indicated by a position that is time-offset relative to the S-SSB. The indication mode of the frequency domain resource position is not limited, if the frequency domain resource number in the PSCCH/PSCCH resource pool can be directly indicated, for example, if the channel bandwidth is 10 RBs and the granularity unit of the frequency domain is 2 RBs, the frequency domain resources can be numbered from 0 to 4, and the values from 0 to 4 are the resource numbers; please refer to fig. 4, wherein fig. 4 is a schematic diagram of a discovery resource provided in an embodiment of the present application, and as shown in the figure, the frequency domain resource location of the discovery resource is shifted upward by 20 RBs relative to the S-SSB.

Alternatively, some resource parameters may be embodied in the table by means of joint indication, such as the time domain resource location and the repetition number, and further such as the frequency domain resource and the repetition number. For example, taking the time domain resource location and the repetition number as examples, please refer to fig. 5, fig. 5 is a schematic diagram of a discovery resource provided in the embodiment of the present application, and as shown in the figure, two implementations of jointly indicating the time domain resource location and the repetition number are shown, corresponding to the entry index of table 1, 00 may be used to indicate a first implementation of jointly indicating the time domain resource location and the repetition number, and 01 may be used to indicate a second implementation of jointly indicating the time domain resource location and the repetition number. A first specific implementation manner of jointly indicating the time domain resource location and the repetition number is to select one timeslot as a discovery resource every X equals to 1 timeslot from the kth slot of K2, where L2 equals to 4 discovery resources in the period, that is, the repetition number is 4. A second specific implementation manner of jointly indicating the time domain resource location and the repetition number is to select one timeslot as a discovery resource every X equals to 3 timeslots starting from the kth time slot K2, where L2 equals to 2 discovery resources in the period, that is, the repetition number is 2. For another example, taking frequency domain resources and repetition times as examples, please refer to fig. 6, and fig. 6 is a schematic diagram of discovery resources provided in an embodiment of the present application. As shown in the figure, two specific embodiments of jointly indicating the frequency domain resource position and the repetition number are shown, in the two embodiments, the time domain resource positions of the discovery resources are 2 consecutive time slots starting from the kth 2 as the 1 st time slot, while the frequency domain resource positions of the discovery resources are different and are obtained by frequency hopping according to a fixed rule on each time slot, and if the M2 frequency domain resources are selected as the frequency domain resources in each time slot, frequency hopping can be realized by dereferencing the M2 according to the fixed rule; if the value of M2 is a positive integer which increases in sequence; and if the value of M2 is a positive integer which decreases in sequence, and the like.

In one implementation, the discovery resource indication Information is determined according to a System Information Block (SL-SIB) indicated by the SL-MIB, where the SL-MIB indicates a location of the SL-SIB and the SL-SIB at the location of the SL-SIB carries the discovery resource indication Information. The specific embodiment that the SL-SIB at the SL-SIB position carries the discovery resource indication information is not limited.

The resource parameters of discovery resources may be directly carried in the SL-SIB, e.g., since the amount of information that the SL-SIB can carry is not limited. Specifically, a resource parameter of the discovery resource is configured in advance in the sending terminal or the receiving terminal, and the sending terminal uses the resource parameter of the discovery resource configured in advance as discovery resource indication information. And then according to the resource position indicated by the discovery resource indication information, searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel, so as to send the discovery information on the discovery resource. And the sending terminal carries the discovery resource indication information in the SL-SIB. And after detecting the S-SSB, the receiving terminal decodes the SL-SIB according to the indication of the SL-MIB or the fixed resource position to obtain the resource parameter of the discovery resource, and uses the resource parameter of the discovery resource as discovery resource indication information. And then searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information. The specific indication manner of the resource parameter may refer to the methods described in the above two embodiments, and is not described herein again.

For example, the discovery resource indication information is obtained according to a table entry index look-up table, the table entry index is determined according to the SL-SIB, and a table corresponding to the table entry index includes a resource parameter. Specifically, in the communication protocol of 3GPP, the resource parameter of the discovery resource is defined in the form of a table, and the table may be stored in a storage device of the receiving terminal or the transmitting terminal. The sending terminal selects a target table item index from the table according to the actual application requirement, and searches the resource parameters of a group of corresponding discovery resources in the table according to the target table item index to serve as discovery resource indication information. And then searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information so as to send the discovery information on the discovery resource. And carries the target entry index in the SL-SIB. After detecting the S-SSB, the receiving terminal decodes the SL-SIB according to the indication of the SL-MIB or according to the fixed resource position, and then finds the resource parameters of a group of discovery resources corresponding to the table according to the table entry index in the SL-SIB as discovery resource indication information. And then searching the discovery resource corresponding to the resource position on the PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information. The specific indication manner of the resource parameter may refer to the methods described in the above two embodiments, and is not described herein again.

It should be noted that, several specific embodiments shown in the above step S201 of the present application may be implemented alone, or may be implemented in combination with any one or more of the above specific embodiments, and the present application is not limited thereto.

S202: and the receiving terminal acquires the discovery information on the found discovery resource.

And the sending terminal sends the discovery information on the discovery resource indicated by the discovery resource indication information, and the receiving terminal acquires the discovery information on the discovery resource.

Referring to fig. 7, fig. 7 is a flowchart illustrating a method for configuring a communication resource according to an embodiment of the present application, where the method for configuring a communication resource includes, but is not limited to, the following steps:

s701: and the receiving terminal searches the discovery resource corresponding to the S-SSB according to the association relation between the synchronization signal block S-SSB and the discovery resource. And then obtaining the discovery information on the found discovery resources.

In practical application, the association relationship between the S-SSB and the discovery resource may be determined by the sending terminal, or may be agreed between the sending terminal and the receiving terminal in a communication protocol. Without limiting the present application, the following illustrates several possible associations of S-SSB with discovery resources.

In one implementation, each S-SSB is associated with one or one set of discovery resources, where the set of discovery resources includes two or more of the discovery resources. If there are N S-SSBs, each S-SSB is associated with one or one group of discovery resources, there are N or N groups of discovery resources, and N is a positive integer greater than or equal to 2. For example, please refer to fig. 8, fig. 8 is a schematic diagram of an association relationship provided in the embodiment of the present application. As shown, S-SSB1, S-SSB2, S-SSB3 represent different blocks of synchronization signals, respectively; the method includes the steps that 1 represents a first group of discovery resources, 2 represents a second group of discovery resources, and 3 represents a third group of discovery resources, wherein one group of discovery resources comprises two discovery resources. Each S-SSB is associated with a set of discovery resources, e.g., S-SSB1 is associated with a first set of discovery resources, S-SSB2 is associated with a second set of discovery resources, and S-SSB3 is associated with a third set of discovery resources. Therefore, when the receiving terminal detects the S-SSB1, it can find the corresponding first group of discovery resources according to the S-SSB1, and obtain discovery information on the first group of discovery resources. Similarly, when the S-SSB2 and the S-SSB3 are detected, the two groups of discovery resources and the third group of discovery resources are respectively corresponding to the two groups of discovery resources and the third group of discovery resources.

In one implementation, the number of S-SSBs is not limited, as multiple S-SSBs may have a quasi co-located (QCL) relationship, and the application is described with N S-SSBs as an example, where N is a positive integer greater than or equal to 2. And if the N S-SSBs have the QCL relationship, determining that the discovery resources associated with the N S-SSBs also have the same QCL relationship. And if the fact that the discovery resources associated with the N S-SSBs also have the same QCL relationship is determined, merging the discovery information acquired from the discovery resources associated with the N S-SSBs. For example, please refer to fig. 9, fig. 9 is a schematic diagram of an association relationship provided in the embodiment of the present application. As shown, S-SSB1, S-SSB2, S-SSB3, S-SSB4 represent different blocks of synchronization signals, respectively; 1 denotes a first group of discovery resources, 2 denotes a second group of discovery resources, 3 denotes a third group of discovery resources, and 4 denotes a fourth group of discovery resources. Wherein, a group of discovery resources comprises two discovery resources. If the S-SSB1 and the S-SSB2 have a QCL relationship, then the first set of discovery resources and the second set of discovery resources have the same QCL relationship. Therefore, the sending terminal can flexibly select the resource for sending the discovery information from the first group of discovery resources and the second group of discovery resources according to the requirement. And the receiving terminal determines that the first group of discovery resources and the two groups of discovery resources have the same QCL relationship according to the association relationship between the S-SSB and the discovery resources, and then combines the discovery information acquired from the first group of discovery resources and the two groups of discovery resources.

In one implementation, the number of S-SSBs is not limited, as multiple S-SSBs may have a quasi co-located (QCL) relationship, and the application is described with N S-SSBs as an example, where N is a positive integer greater than or equal to 2. And if the N S-SSBs have the QCL relationship, the sending terminal randomly selects one or one group from the N or N groups of discovery resources associated with the N S-SSBs, and sends discovery information as the target discovery resource. And the receiving terminal determines the target discovery resources associated with the N S-SSBs, wherein the target discovery resources are any one or any one group of N or N groups of discovery resources associated with the N S-SSBs. For example, the association relationship diagram shown in fig. 9 is still taken as an example. If the S-SSB1 and the S-SSB2 have a QCL relationship, the target discovery resources associated with the S-SSB1 and the S-SSB2 are not limited, for example, a first group of discovery resources with the time domain position closest to the S-SSB2 is used as the target discovery resources, and a second group of discovery resources is used as the target discovery resources. Taking the first group of discovery resources with the time domain position closest to the S-SSB2 as an example of a target discovery resource, the sending terminal sends discovery information only on the first group of discovery resources, and the receiving terminal obtains the discovery information only on the first group of discovery resources when detecting the S-SSB1 or the S-SSB 2. And (3) reducing discovery resources for bearing discovery information according to the QCL relationship of the S-SSB, better utilizing channel resources and improving the utilization rate of the channel resources.

In one implementation, the number of S-SSBs is not limited, as multiple S-SSBs may have a quasi co-located (QCL) relationship, and the application is described with N S-SSBs as an example, where N is a positive integer greater than or equal to 2. If the N S-SSBs comprise N/M groups of S-SSBs, each group of S-SSBs has a QCL relationship between the S-SSBs, and the QCL relationship is fixed and unchanged, each group of S-SSBs is associated with one or one group of discovery resources correspondingly, and M is the repetition number. Specifically, if the QCL relationship of the S-SSB is fixed and unchanged, the number of repetitions is 2; the number of S-SSBs is 4 at maximum, and actually the number of S-SSBs having different QCL relationships is 4/2-2. Only 2 sets are configured when configuring the discovery resource. For example, the association relationship diagram shown in fig. 9 is still taken as an example. If S-SSB1 and S-SSB2 have the same QCL and S-SSB3 and S-SSB4 have the same QCL, then S-SSB1 and S-SSB2 may be referred to as a set of S-SSBs and S-SSB3 and S-SSB4 may be referred to as a set of S-SSBs. When configuring the discovery resources, the sending terminal may perform configuration according to one or a group of discovery resources correspondingly associated with each group of S-SSB. Such as S-SSB1 and S-SSB2 to a first set of resources and S-SSB3 and S-SSB4 to a third set of resources. The resource number of the discovery can be reduced, and the discovery information can be acquired by the receiving terminal. Therefore, when the receiving terminal detects the S-SSB1 or the S-SSB2, the receiving terminal finds the corresponding first group of discovery resources and obtains discovery information on the first group of discovery resources; and when detecting the S-SSB3 or the S-SSB4, the receiving terminal finds the corresponding third group of discovery resources and acquires discovery information on the third group of discovery resources.

It should be noted that, several embodiments shown in the above step S701 of the present application may be implemented alone, or may be implemented in combination with any one or more of the above embodiments, and the present application is not limited thereto. Further, the present application may be implemented alone or in combination based on the specific implementation of the method for configuring communication resources described in fig. 2 and the specific implementation of the method for configuring communication resources described in fig. 7, which is not limited in the present application.

In the embodiment of the application, a receiving terminal searches for discovery resources corresponding to a synchronization signal block S-SSB according to the association relationship between the S-SSB and the discovery resources; and then the receiving terminal acquires the discovery information on the found discovery resource. Therefore, the synchronization signal block S-SSB is associated with the discovery resource, so that the corresponding discovery resource can be searched and monitored after the S-SSB is detected, and the communication resource consumption is reduced.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a configuration device of communication resources according to an embodiment of the present application, where the configuration device of communication resources may be a terminal or a device (e.g., a chip) having a terminal function. Specifically, as shown in fig. 10, the apparatus 100 for configuring communication resources may include:

a searching unit 101, configured to search, according to a resource position indicated by the discovery resource indication information, a discovery resource corresponding to the resource position on the PSCCH/PSCCH physical channel, where the discovery resource is a resource in a PSCCH/PSCCH resource pool;

an obtaining unit 102, configured to obtain discovery information on the found discovery resource.

In one implementation, the time domain resource location is a location of a discovery resource relative to a time offset of a synchronization signal block S-SSB; and the frequency domain resource position is the position of the discovery resource relative to the frequency domain offset of the S-SSB.

In one implementation, the discovery resource indication information is determined according to a system information block SL-SIB indicated by the SL-MIB, the SL-MIB indicates the position of the SL-SIB, and the discovery resource indication information is carried in the SL-SIB at the position of the SL-SIB.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a device for configuring communication resources according to an embodiment of the present application, where the device for configuring communication resources may be a terminal or a device (e.g., a chip) having a terminal function. Specifically, as shown in fig. 11, the apparatus 110 for configuring communication resources may include:

a searching unit 111, configured to search, according to a resource position indicated by the discovery resource indication information, a discovery resource corresponding to the resource position on the PSCCH/PSCCH physical channel, where the discovery resource is a resource in the PSCCH/PSCCH resource pool;

a sending unit 112, configured to send discovery information on the found discovery resource.

In one implementation, the discovery resource indication information is carried by a system master information block SL-MIB in the synchronization signal block S-SSB, and indicates a resource location of the discovery resource through the SL-MIB.

In an implementation manner, the discovery resource indication information is obtained by table look-up according to table entry indexes, the table entry indexes are carried by SL-MIB, and the tables corresponding to the table entry indexes include resource parameters of the discovery resource.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a device for configuring communication resources according to an embodiment of the present application, where the device for configuring communication resources may be a terminal or a device (e.g., a chip) having a terminal function. Specifically, as shown in fig. 12, the apparatus 120 for configuring communication resources may include:

the searching unit 121 is configured to search, according to an association relationship between the synchronization signal block S-SSB and the discovery resource, the discovery resource corresponding to the S-SSB;

an obtaining unit 122, configured to obtain discovery information on the found discovery resource.

In an implementation manner, if it is determined that the discovery resources associated with the respective N S-SSBs also have the same QCL relationship, when the obtaining unit 122 obtains discovery information on the found discovery resource, the obtaining unit is further configured to:

and merging the discovery information acquired from the discovery resources associated with the N S-SSBs respectively.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a configuration device of communication resources according to an embodiment of the present application, where the configuration device of communication resources may be a terminal or a device (e.g., a chip) having a terminal function. Specifically, as shown in fig. 13, the apparatus 130 for configuring communication resources may include:

the sending unit 131 is configured to select a target discovery resource to send discovery information according to an association relationship between the synchronization signal block S-SSB and the discovery resource.

In an implementation manner, if N S-SSBs have a QCL relationship, when the sending unit 131 is configured to select a target discovery resource to send discovery information, specifically configured to:

and randomly selecting one or one group from N or N groups of discovery resources associated with the N S-SSBs, and sending discovery information as a target discovery resource.

In one implementation, if N/M sets of S-SSBs are included in the N S-SSBs, each set of S-SSBs has a QCL relationship between the S-SSBs, and the QCL relationship is fixed and invariant, each set of S-SSBs is associated with one or one set of discovery resources, where N is a positive integer greater than or equal to 2, and M is the number of repetitions.

Based on the same application concept, the principle and the beneficial effect of the problem solving by the terminal for configuring the communication resource provided in the embodiment of the present application are similar to the principle and the beneficial effect of the problem solving by the method for configuring the communication resource in the embodiment of the present application, and reference may be made to the principle and the beneficial effect of the implementation of the method, which is not described herein again for brevity.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a receiving terminal according to an embodiment of the present disclosure. The terminal 140 may include a memory 141, a processor 142, and a communication interface 143, with the memory 141, processor 142, and communication interface 143 being connected by one or more communication buses. Wherein communication interface 143 is controlled by processor 142 for transmitting and receiving information.

Memory 141 may include both read-only memory and random access memory, and provides instructions and data to processor 142. A portion of memory 141 may also include non-volatile random access memory.

The Processor 142 may be a Central Processing Unit (CPU), and the Processor 142 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), off-the-shelf Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor, and optionally, the processor 142 may be any conventional processor or the like. Wherein:

and a memory 141 for storing program instructions.

A processor 142 for calling program instructions stored in the memory 141 to cause the terminal 140 to perform the following operations:

searching a discovery resource corresponding to the resource position on a PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool;

and obtaining the discovery information on the found discovery resource.

Referring to fig. 15, fig. 15 is a schematic structural diagram of a sending terminal according to an embodiment of the present application. The terminal 150 may include a memory 151, a processor 152, and a communication interface 153, the memory 151, the processor 152, and the communication interface 153 being connected by one or more communication buses. Wherein the communication interface 153 is controlled by the processor 152 for transmitting and receiving information.

Memory 151 may include both read-only memory and random access memory and provides instructions and data to processor 152. A portion of the memory 151 may also include non-volatile random access memory.

The Processor 152 may be a Central Processing Unit (CPU), and the Processor 152 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), off-the-shelf Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor, and optionally, the processor 152 may be any conventional processor or the like. Wherein:

a memory 151 for storing program instructions.

A processor 152 for calling program instructions stored in the memory 151 to cause the terminal 150 to perform the following operations:

and obtaining the discovery information on the found discovery resource.

Referring to fig. 16, fig. 16 is a schematic structural diagram of a receiving terminal according to an embodiment of the present disclosure. The terminal 160 may include a memory 161, a processor 162, and a communication interface 163, with the memory 161, processor 162, and communication interface 163 being connected via one or more communication buses. Wherein the communication interface 163 is controlled by the processor 162 for transmitting and receiving information.

Memory 161 may include both read-only memory and random-access memory, and provides instructions and data to processor 162. A portion of the memory 161 may also include non-volatile random access memory.

The Processor 162 may be a Central Processing Unit (CPU), and the Processor 162 may also be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor, and optionally, the processor 162 may be any conventional processor or the like. Wherein:

a memory 161 for storing program instructions.

A processor 162 for calling program instructions stored in the memory 161 to cause the terminal 160 to perform the following operations:

searching for the discovery resource corresponding to the S-SSB according to the incidence relation between the synchronization signal block S-SSB and the discovery resource;

and obtaining the discovery information on the found discovery resource.

In an implementation manner, if it is determined that the discovery resources associated with each of the N S-SSBs also have the same QCL relationship, the processor 162 is configured to call a program instruction stored in the memory 161 to enable the terminal 160 to execute the following operations when acquiring discovery information on the found discovery resource:

Referring to fig. 17, fig. 17 is a schematic structural diagram of a sending terminal according to an embodiment of the present application. The terminal 170 may include a memory 171, a processor 172, and a communication interface 173, the memory 171, the processor 172, and the communication interface 173 being connected by one or more communication buses. Wherein communication interface 173 is controlled by processor 172 for transmitting and receiving information.

The memory 171 may include both read-only memory and random access memory, and provides instructions and data to the processor 172. A portion of the memory 171 may also include non-volatile random access memory.

The Processor 172 may be a Central Processing Unit (CPU), and the Processor 172 may be other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor, but in the alternative, the processor 172 may be any conventional processor or the like. Wherein:

the memory 171 is used for storing program instructions.

A processor 172 for calling the program instructions stored in the memory 171 to make the terminal 170 perform the following operations:

and selecting a target discovery resource to send discovery information according to the incidence relation between the synchronization signal block S-SSB and the discovery resource.

In an implementation manner, if the N S-SSBs have a QCL relationship, the processor 172 is configured to call a program instruction stored in the memory 171 to enable the terminal 170 to execute the selection of the target discovery resource to send discovery information, and specifically perform the following operations:

The embodiment of the present application further provides a computer-readable storage medium, where one or more instructions are stored in the computer-readable storage medium, and the one or more instructions are adapted to be loaded by a processor and to execute the method for configuring resources in communication according to the above-mentioned method embodiment.

Embodiments of the present application further provide a computer program product containing instructions, which when run on a computer, cause the computer to execute the method for configuring communication resources according to the above method embodiments.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The modules in the device can be merged, divided and deleted according to actual needs.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, which may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A method for configuring communication resources, which is used for configuring discovery resources in a V2X system in Internet of vehicles, and comprises the following steps:

a receiving terminal searches for a discovery resource corresponding to a resource position on a PSCCH/PSSCH physical channel according to the resource position indicated by the discovery resource indication information, wherein the discovery resource is a resource in a PSCCH/PSSCH resource pool; the resource position indicated by the discovery resource indication information comprises: a time domain resource position of the discovery resource, and/or a frequency domain resource position of the discovery resource; the time domain resource position is a position of the discovery resource relative to the time offset of the synchronization signal block S-SSB; the frequency domain resource position is a position of the discovery resource offset relative to the frequency domain of the S-SSB;

and the receiving terminal acquires discovery information on the found discovery resource.

2. The method of claim 1, wherein the frequency domain resource location indication has a granularity that is the same as a granularity of the PSCCH/PSCCH resource pool.

3. The method of claim 1, wherein the discovery resource indication information is pre-configured in the receiving terminal.

4. The method of claim 1, wherein the discovery resource indication information is received from a base station.

5. The method of claim 1, wherein the time domain resource location is a location of at least one target timeslot in the PSCCH/PSCCH resource pool selected according to a fixed time domain rule starting from a kth timeslot in each period; and the frequency domain resource position is the position of a target frequency domain resource selected from each target time slot according to a fixed frequency hopping rule.

6. The method of claim 1, wherein the discovery resource indication information is determined from a system master information block (SL-MIB) in the S-SSB, wherein a resource location of the discovery resource is indicated by the SL-MIB.

7. The method according to claim 6, wherein the discovery resource indication information is obtained according to a table entry index look-up table, the table entry index is determined according to the SL-MIB, and a table corresponding to the table entry index includes a resource parameter of the discovery resource.

8. The method of claim 1, wherein the discovery resource indication information is determined from a system information block (SL-SIB) indicated by a SL-MIB in the S-SSB, the SL-MIB indicating the location of the SL-SIB, the discovery resource indication information being carried in a SL-SIB in the location of the SL-SIB.

9. The method of claim 8, wherein the discovery resource indication information is determined from a resource parameter of the discovery resource carried by the SL-SIB.

10. The method of claim 8, wherein the discovery resource indication information is obtained according to a table entry index look-up table, the table entry index is determined according to the SL-SIB, and a table corresponding to the table entry index includes a resource parameter of the discovery resource.

11. A method for configuring communication resources, which is used for configuring discovery resources in a V2X system in Internet of vehicles, and comprises the following steps:

a sending terminal searches for discovery resources corresponding to the resource positions on a PSCCH/PSSCH physical channel according to the resource positions indicated by the discovery resource indication information, wherein the discovery resources are resources in a PSCCH/PSSCH resource pool; the resource position indicated by the discovery resource indication information comprises: a time domain resource position of the discovery resource, and/or a frequency domain resource position of the discovery resource; the time domain resource position is a position of the discovery resource relative to the time offset of the synchronization signal block S-SSB; the frequency domain resource position is a position of the discovery resource offset relative to the frequency domain of the S-SSB;

and the sending terminal sends discovery information on the found discovery resource.

12. The method of claim 11, wherein the frequency domain resource location indication has a granularity that is the same as a granularity of the PSCCH/PSCCH resource pool.

13. The method of claim 11, wherein the discovery resource indication information is pre-configured in the transmitting terminal.

14. The method of claim 11, wherein the discovery resource indication information is received from a base station.

15. The method of claim 11, wherein the time domain resource location is a location of at least one target timeslot in the PSCCH/PSCCH resource pool selected according to a fixed time domain rule starting from a kth timeslot in each period; and the frequency domain resource position is the position of a target frequency domain resource selected from each target time slot according to a fixed frequency hopping rule.

16. The method of claim 11, wherein the discovery resource indication information is carried through a system master information block (SL-MIB) in the S-SSB, wherein a resource location of the discovery resource is indicated through the SL-MIB.

17. The method according to claim 16, wherein the discovery resource indication information is obtained by table lookup according to an entry index, the entry index is carried by the SL-MIB, and a table corresponding to the entry index includes a resource parameter of the discovery resource.

18. The method of claim 11, wherein the discovery resource indication information is carried by a system information block, SL-SIB, indicated by a SL-MIB in the S-SSB, the SL-MIB indicating the SL-SIB location in which the discovery resource indication information is carried.

19. The method of claim 18, wherein the discovery resource indication information is a resource parameter of the discovery resource carried by the SL-SIB.

20. The method of claim 18, wherein the discovery resource indication information is obtained according to a table entry index lookup table, wherein the table entry index is carried by the SL-SIB, and a table corresponding to the table entry index includes a resource parameter of the discovery resource.

21. A receiving terminal, characterized in that the receiving terminal comprises:

a memory comprising computer readable instructions;

a processor coupled to the memory, the processor configured to execute the computer-readable instructions to cause the receiving terminal to perform the method of configuring a communication resource of any of claims 1 to 10.

22. A transmitting terminal, characterized in that the transmitting terminal comprises:

a memory comprising computer readable instructions;

a processor coupled to the memory, the processor configured to execute the computer-readable instructions to cause the sending terminal to perform the method of configuring a communication resource of any of claims 11 to 20.