CN111245585A

CN111245585A - Information sending method and device and parameter determining method and device

Info

Publication number: CN111245585A
Application number: CN202010025940.1A
Authority: CN
Inventors: 张晋瑜; 曲鑫
Original assignee: Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
Current assignee: Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-06-05
Anticipated expiration: 2040-01-10
Also published as: CN111245585B

Abstract

The disclosure relates to an information sending method and device, and a parameter determining method and device, wherein the method comprises the following steps: and sending joint indication information through a physical Sidelink broadcast channel PSBCH, wherein the joint indication information is used for jointly indicating a time division duplex-uplink-downlink TDD-UL-DL period and a Sidelink Sidelink time domain resource in the period. The embodiment of the disclosure may send the joint indication information through the PSBCH, so as to jointly indicate the period of TDD-UL-DL and the SL time domain resource in the period by using the joint indication information, that is, the same indication information (joint indication information) indicates both the period of TDD-UL-DL and the SL time domain resource in the period, thereby implementing compression of TDD-UL-DL configuration information, reducing the load of the PSBCH, and improving communication efficiency.

Description

Information sending method and device and parameter determining method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an information sending method and apparatus, and a parameter determining method and apparatus.

Background

In an NR (New Radio, New air interface) V2X (Vehicle-to-electrical networking) system, TDD-UL-DL (Time Division Duplex-Uplink-Downlink) needs to be configured, however, in the related art, when configuring the TDD-UL-DL, more transmission resources are used or multiple configurations are performed, which increases the load of transmission resources and causes waste of resources and Time.

Disclosure of Invention

In view of this, the present disclosure provides an information sending method, which is applied to a network element device, and the method includes:

and sending joint indication information through a physical Sidelink broadcast channel PSBCH, wherein the joint indication information is used for jointly indicating a time division duplex-uplink-downlink TDD-UL-DL period and a Sidelink Sidelink time domain resource in the period.

In a possible implementation manner, different values of the joint indication information correspond to different periods and Sidelink time domain resource combinations.

In a possible implementation manner, the joint indication information includes first indication information and second indication information, the first indication information is used for jointly indicating a first period of TDD-UL-DL and a Sidelink time domain resource in the first period, and the second indication information is used for jointly indicating a second period of TDD-UL-DL and a Sidelink time domain resource in the second period.

In a possible embodiment, in case that the first indication information includes preset indication information, the joint indication information indicates that there is no first period in TDD-UL-DL; or in the case that the second indication information includes preset indication information, the joint indication information indicates that the TDD-UL-DL does not have the second period.

In one possible embodiment, the joint indication information includes a period indicator, and the period indicator is used to indicate that TDD-UL-DL is single-period or double-period.

According to another aspect of the present disclosure, there is provided a parameter determining method, which is applied to a terminal, the method including:

receiving joint indication information through a physical side link broadcast channel PSBCH, wherein the joint indication information is used for jointly indicating a time division duplex-uplink-downlink TDD-UL-DL period and a side link Sidelink time domain resource in the period;

and determining the TDD-UL-DL period and the Sidelink time domain resource in the period according to the joint indication information.

In a possible implementation manner, the joint indication information includes first indication information and second indication information, where the first indication information is used to jointly indicate a first period of TDD-UL-DL and a Sidelink time domain resource in the first period, the second indication information is used to jointly indicate a second period of TDD-UL-DL and a Sidelink time domain resource in the second period, and the determining a period of TDD-UL-DL and a Sidelink time domain resource in the period according to the joint indication information includes:

determining a first period of TDD-UL-DL and a Sildelink time domain resource in the first period by using the first indication information;

and determining a second period of TDD-UL-DL and a Sildelink time domain resource in the second period by using the second indication information.

In a possible implementation manner, the determining, by using the first indication information, a first period of TDD-UL-DL and a Sidelink time domain resource in the first period includes:

determining that there is no first period in the TDD-UL-DL on the condition that the first indication information comprises preset indication information;

the determining, by using the second indication information, a second period of TDD-UL-DL and a Sidelink time domain resource in the second period includes:

in case that the first indication information includes preset indication information, the joint indication information indicates that there is no first period in TDD-UL-DL; or determining that the TDD-UL-DL does not have the second period under the condition that the second indication information comprises preset indication information.

In a possible implementation manner, the joint indication information includes a period indicator, where the period indicator is used to indicate that TDD-UL-DL is a single period or a double period, and the determining, according to the joint indication information, a period of TDD-UL-DL and a Sidelink time domain resource in the period includes:

and determining that TDD-UL-DL is in a single cycle or a double cycle according to the cycle indication identifier in the joint indication information.

According to another aspect of the present disclosure, there is provided an information transmitting apparatus, which is applied to a network element device, the apparatus including:

a sending module, configured to send joint indication information through a physical Sidelink broadcast channel PSBCH, where the joint indication information is used to jointly indicate a period of time division duplex-uplink-downlink TDD-UL-DL and a Sidelink time domain resource in the period.

According to another aspect of the present disclosure, there is provided a parameter determining apparatus, the apparatus being applied to a terminal, the apparatus including:

a receiving module, configured to receive joint indication information through a physical Sidelink broadcast channel PSBCH, where the joint indication information is used to jointly indicate a TDD-uplink-downlink TDD-UL-DL period and a Sidelink time domain resource in the period;

and the determining module is connected to the receiving module and is used for determining the TDD-UL-DL period and the Sidelink time domain resource in the period according to the joint indication information.

determining that the TDD-UL-DL does not have a second period under the condition that the second indication information comprises preset indication information.

According to another aspect of the present disclosure, there is provided an information transmitting apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above-mentioned information transmitting method.

According to another aspect of the present disclosure, there is provided a parameter determining apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above parameter determination method.

According to another aspect of the present disclosure, there is provided a non-transitory computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described information transmitting method.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described parameter determination method.

Various aspects of the embodiments of the present disclosure may send the joint indication information through the PSBCH, so as to jointly indicate the period of TDD-UL-DL and the SL time domain resource in the period by using the joint indication information, that is, the same indication information (joint indication information) indicates both the period of TDD-UL-DL and the SL time domain resource in the period, thereby implementing compression of TDD-UL-DL configuration information, reducing the load of the PSBCH, and improving communication efficiency.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present disclosure.

Fig. 2 shows a flowchart of an information transmitting method according to an embodiment of the present disclosure.

Fig. 3 shows a corresponding schematic diagram of subcarrier spacing and periodicity according to an embodiment of the disclosure.

Fig. 4 shows a flow chart of a parameter determination method according to an embodiment of the present disclosure.

Fig. 5 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Fig. 6 shows a block diagram of a parameter determination apparatus according to an embodiment of the present disclosure.

Fig. 7 shows a block diagram of a parameter determination apparatus according to an embodiment of the present disclosure.

Fig. 8 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

The embodiments provided in the embodiments of the present disclosure may be applied to a 5G (5generation) communication system, may also be applied to a 2G, 4G, or 3G communication system, may also be applied to a satellite communication system, and may also be applied to various communication systems of subsequent evolution, such as 6G, 7G, and the like.

The disclosed embodiments are also applicable to different network architectures including, but not limited to, relay network architectures, dual link architectures, and Vehicle-to-event architectures.

The 5G CN according to the embodiment of the present disclosure may also be referred to as a new core (new core), a 5G new core, a Next Generation Core (NGC), or the like. The 5G-CN is set independently of an existing core network, such as an Evolved Packet Core (EPC).

The network element device in the embodiments of the present disclosure may be a Base Station (BS), which may also be referred to as a base station device, and is a device deployed in a radio access network to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS) and a Base Station Controller (BSC), the device providing the base station function in the 3G network includes a node B (NodeB) and a Radio Network Controller (RNC), the device providing the base station function in the 4G network includes an evolved node B (eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an access point (access point, AP), the device providing the base station function in the 5G New Radio (New Radio, NR) includes a node B (gnb) that continues to evolve, and the device providing the base station function in a future New communication system, etc.

The terminal in the embodiments of the present disclosure, which may also be referred to as a User Equipment (ue), may refer to various types of access terminals, subscriber units, subscriber stations, Mobile Stations (MS), remote stations, remote terminals, Mobile devices, User terminals, terminal devices (terminal devices), wireless communication devices, User agents, or User devices. The user equipment 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 Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a user equipment in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., which is not limited by the embodiments of the present disclosure.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present disclosure. The embodiments of the present disclosure may be applied to a communication system as shown in fig. 1. In the embodiment of the present disclosure, a unidirectional communication link from the network element device 12 to the user equipment 14 is defined as a downlink DL, data transmitted on the downlink is downlink data, and a transmission direction of the downlink data is referred to as a downlink direction; and the unidirectional communication link from the UE 14 to the network element device 12 is an uplink UL, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The term "connected" in the embodiments of the present disclosure refers to various connection methods such as direct connection or indirect connection, so as to implement communication between devices.

The expression "network" and "system" appearing in the embodiments of the present disclosure are the same concept, and the communication system is a communication network. The term "connected" in the embodiments of the present disclosure refers to various connection manners, such as direct connection or indirect connection, for example, different devices are connected through a communication interface, and is not limited at all.

In the NR V2X system, TDD-UL-DL configuration needs to be indicated in PSBCH. According to current 3GPP conference evolution, the PSBCH size is 56 bits, and 12 bits are currently reserved for TDD-UL-DL configuration. Even if 2 bits of reserved bits or other information such as a slot index is compressed, the number of bits available for the TDD-UL-DL configuration does not exceed 15 bits. Also, the related art, when configuring TDD-UL-DL, a period and a time domain resource (e.g., SL) that can be used for Sidelink (side link)Time slots) are separately indicated, and thus, the related art requires a large number of transmission resources (bits) to implement the configuration of TDD-UL-DL. For example, assuming that TDD-UL-DL is indicated as a single period (3 bits), at 120KH subcarrier spacing (SCS), assuming a period of 10ms (80 slots), the network element device needs log₂80 bits, i.e. 7 bits (rounded up) to achieve the configuration of the SL time domain resource, i.e. 10 bits in total are needed to achieve the one-cycle configuration for TDD-UL-DL. If TDD-UL-DL is indicated as bi-periodic, 2x 10 x 20 bits of transmission resources are needed to implement the bi-periodic configuration of TDD-UL-DL, far exceeding the 12 bits reserved in 3GPP discussion, and even if TDD-UL-DL is configured under 60KHz SCS, 2 (3+ log) is needed₂40) The reserved 12 bits are still exceeded for the 18-bit transmission resource.

Therefore, the configuration information of TDD-UL-DL needs to be compressed, so as to carry as much information as possible under the limited PSBCH load, thereby improving the communication efficiency.

Referring to fig. 2, fig. 2 is a flowchart illustrating an information transmitting method according to an embodiment of the present disclosure.

The method is applied to a network element device, and as shown in fig. 2, the method includes:

step S11, sending joint indication information through a physical Sidelink broadcast channel PSBCH, where the joint indication information is used to jointly indicate a period of TDD-uplink-downlink TDD-UL-DL and a Sidelink time domain resource in the period.

Through the above method, the embodiment of the present disclosure may send the joint indication information through the PSBCH, so as to jointly indicate the period of the TDD-UL-DL and the SL time domain resource in the period by using the joint indication information, that is, the same indication information (joint indication information) indicates both the period of the TDD-UL-DL and the SL time domain resource in the period, thereby implementing compression of the TDD-UL-DL configuration information, reducing the load of the PSBCH, and improving the communication efficiency.

In an example, the SL time domain resource may include a number of SL time slots, the network element device may determine the number of time slots that the terminal may use for the SL when configuring the TDD-UL-DL, and when the terminal determines the TDD-UL-DL period and the SL time domain resource by using the joint indication information, the SL communication may be performed by using the SL time domain resource.

In one example, the joint indication information may include a plurality of bits, and a different value (or referred to as a different code) of the joint indication information may be formed by a change of a value taken by each bit. Different values of the joint indication information can be called as different code points (codepoint), for example, each code point corresponds to a period and SL time domain resource combination, and after the terminal receives the PSBCH, the joint indication information therein can be acquired, and the length of the period and the SL time domain resource corresponding to the joint indication information are determined according to a protocol.

In one example, the bit number included in the joint indication information may be determined according to different SCS, and for different SCS, the joint indication information with different number of bit numbers may be used to indicate the TDD-UL-DL period and SL time domain resources, which is described in the following exemplary description.

Referring to fig. 3, fig. 3 is a diagram illustrating a subcarrier spacing and period according to an embodiment of the present disclosure.

As shown in fig. 3, the SCS may include 15KHz, 30KHz, 60KHz, 120KHz, etc., each SCS may include a variety of periods (0.5ms, 0.625ms, 1ms,1.25 ms, 2ms,2.5 ms, 5ms,10 ms), and the periods of different SCS have corresponding time domain resources (number of slots), for example, in case of 120KHz, 4slots when the period is 0.5 ms.

Of course, the above description is illustrative, and should not be taken as limiting the disclosure.

Taking 60KHz SCS as an example, the longest period corresponding to 60KHz SCS is 10ms, and the corresponding time domain resource is 40slots, if TDD-UL-DL is indicated in a manner of indicating the period and SL time domain resource separately by using a related technology, the indication of a single period needs 9 bits, and the indication of a double period needs 18 bits, if the technical scheme provided by the embodiment of the present disclosure is utilized, the period and SL time domain resource are jointly indicated by joint indication information, the single period only needs 7 bits, the double period only needs 14 bits, and the following is an analysis process:

in one example, as shown in fig. 3, a 10ms period corresponds to 40 consecutive time slots, and there are 40 possible SL time domain resources (one of forty of the first to forty time slots, thirty-nine of the second to forty time slots, thirty-eight of the third to forty time slots, …, two of the thirty-ninth to forty time slots, and the forty time slot);

in one example, as shown in fig. 3, a period of 5ms corresponds to 20 consecutive slots, and there are 20 possibilities for the SL time domain resource (twenty of the first to twentieth slots, nineteen of the second to twentieth slots, eighteen of the third to twentieth slots, …, two of the first nineteen to twentieth slots, one of the twentieth slots);

in one example, as shown in fig. 3, a period of 2.5ms corresponds to 10 consecutive slots, and there are 10 possibilities for SL time domain resources (ten of the first to tenth slots, nine of the second to tenth slots, eight of the third to tenth slots, …, two of the ninth to tenth slots, one of the tenth slots);

in one example, as shown in fig. 3, a period of 2ms corresponds to 8 consecutive slots, and there are 8 possibilities for the SL time domain resource (eight of the first to eighth slots, seven of the second to eighth slots, six of the third to eighth slots, …, two of the seventh to eighth slots, one of the eighth slots);

in one example, as shown in fig. 3, a period of 1.25ms corresponds to 5 consecutive slots, and there are 5 possibilities for SL time domain resources (five of the first to fifth slots, four of the second to fifth slots, three of the third to fifth slots, two of the fourth to fifth slots, and one of the fifth slots);

in one example, as shown in fig. 3, a period of 1ms corresponds to 4 consecutive slots, and there are 4 possibilities for SL time domain resources (four of the first to fourth slots, three of the second to fourth slots, two of the third to fourth slots, and one of the fourth slots);

in one example, as shown in fig. 3, a period of 0.5ms corresponds to 2 consecutive slots, and there are 2 possibilities for SL time domain resources (two of the first slot to the second slot, one of the second slot).

Therefore, the indication of the SL time domain resources of TDD-UL-DL has a total possibility of 40+20+10+8+5+4+2 (or 89+7 or 96 total possible configurations if the number of allowed time slots of the SL is 0), and thus all cases can be indicated by the 7-bit joint indication information.

Table 1 shows a possible implementation of the joint indication information when the SCS is 60KHz according to an embodiment of the present disclosure.

In one example, the joint indication information may be a code point including 7 bits, as shown in table 1, the code point "0000000" may be used to jointly indicate that the period is 10ms and the SL time domain resource is the last slot of 40 slots; code point "1011000" may be used to jointly indicate that the period is 0.5ms and the SL time domain resource is all slots (2) for that period.

TABLE 1

Of course, the above description is exemplary and should not be considered as a limitation to the present disclosure, in other embodiments, the period sequence in table 1, the correspondence relationship between the sequence of the number of slots available for SL and the code point, and the like, may be variable, and a person skilled in the art may configure as needed as long as it is ensured that the combination of each period and the number of slots of the SL time domain resource can uniquely correspond to one code point, that is, one joint indication information may uniquely determine the combination of the period and the SL time domain resource.

As can be seen from the above description, the network element device may determine multiple possibilities of SL time domain resource configuration for TDD-UL-DL, and thus determine the bit number of the joint indication information, for example, assuming that there are 8 TDD-UL-DL periods for a certain SCS:

in the period 1, the SL time domain resource configuration mode of TDD-UL-DL is N1, and the code points are respectively corresponding to 0 to N1-1;

in period 2, there are N2 SL time domain resource configuration modes of TDD-UL-DL, each corresponding to a code point N1-N1 + N2-1;

in period 3, there are N3 SL time domain resource allocation manners of TDD-UL-DL, which correspond to code points N1+ N2 to N1+ N2+ N3-1, respectively;

……

by analogy, there are N1+ N2+ … + N8 possible situations in total, and the joint indication information needs to be

A bit.

The configuration combination of each TDD-UL-DL period and number of SL slots (time domain resources) is unique corresponding joint indication information (code point), and the corresponding relation can be determined in a protocol, and can be given according to a fixed formula or in a table form.

Of course, the above describes the single period case, if the network element device is to configure TDD-UL-DL as a double period, a plurality of bits may be added to indicate the period length of TDD-UL-DL and the SL time domain resource in the double period.

In a possible implementation manner, the joint indication information may include first indication information and second indication information, the first indication information may be used to jointly indicate a first period of TDD-UL-DL and a Sidelink time domain resource in the first period, and the second indication information may be used to jointly indicate a second period of TDD-UL-DL and a Sidelink time domain resource in the second period.

The first period and the second period may be two periods in a dual-period mode, and the first indication information and the second indication information may be different or the same, that is, the first period and the second period may be the same or different. For example, the joint indication information may be set to 14 bits (e.g., 2 bits which may be 12 bits + reserved bits for TDD-UL-DL configuration), and then the first 7 bits may be utilized to carry the first indication information and the last 7 bits may be utilized to carry the second indication information. When the terminal receives the joint indication information, the first indication information of the joint indication information can be obtained, and the period length of TDD-UL-DL of the first period in the double periods and SL time domain resources are determined by utilizing the first indication information; and determining the period length of TDD-UL-DL of the second period in the double periods and SL time domain resources by using the second indication information.

In a possible implementation manner, the network element device may write preset indication information in the second indication information to indicate that the TDD-UL-DL does not have the second period, that is, the second period of the TDD-UL-DL and the Sidelink time domain resource in the second period may not be determined.

In one example, the preset indication information may be, for example, all 1 (e.g., 1111111 at 60KHz SCS) or others, and the disclosure is not limited thereto. When the terminal receives the joint indication information, if the second indication information is not the preset indication information, the second indication information is utilized to determine the period length of TDD-UL-DL of the second period in the double periods and SL time domain resources; and if the second indication information is preset indication information, the second period does not exist, and the TDD-UL-DL second period and the Sildelink time domain resource in the second period do not need to be determined.

In a possible embodiment, the joint indication information may further include a period indicator, where the period indicator is used to indicate that TDD-UL-DL is single-period or double-period.

In one example, the network element device may set a period indicator in the joint indication information, where the period indicator may be 1 bit (for example, a bit of a slot index is used as a bit of the period indicator, or one bit of 12 bits specified by 3GPP for TDD-UL-DL configuration), for example, the joint indication information may be indicated by using a period indicator of "0" to indicate a single-period TDD-UL-DL configuration, and the joint indication information may be indicated by using a period indicator of "1" to indicate a double-period TDD-UL-DL configuration.

When the terminal determines the joint indication information according to the cycle indication identifier to indicate a single cycle or a double cycle, the cycle of the TDD-UL-DL and the SL time domain resource may be determined according to the data and the communication protocol in the joint indication information.

If the network element device needs to indicate the dual-period TDD-UL-DL configuration and the PSBCH transmission resource is insufficient, the SL time domain resource of the second period may be specified in a differential manner. The manner of differentiation is illustratively described below.

In one example, the joint indication information may include period type indication information, first time domain resource indication information, and difference indication information, the period type indication information may be used to indicate a period type of TDD-UL-DL (e.g., may include a single period, a double period, or if the period is a double period, combination information of the double period may be included), the first time domain resource indication information may be used to indicate SL time domain resources of the first period, and the difference indication information may be used to indicate SL time domain resources of the second period or a difference with respect to the time domain resources of the first period, for example, the first time domain resource indication information indicates that the SL time domain resources of the first period are consecutive 10 time slots, when the number of bits included in the joint indication information cannot carry TDD-UL-DL configuration of the double period, the difference indication information may be set to-5 (difference), when the terminal obtains the information, it can determine that the time domain resource of the second period is 5 continuous time slots (10-5).

The possible combinations of periods are exemplified below with the SCS at 60 KHz.

As shown in fig. 3, if the network element device indicates that TDD-UL-DL is a single period, there may be seven periods, which are 0.5 ms-2 slots (time slots), 1 ms-4 slots, 1.25 ms-5 slots,2 ms-8 slots, 2.5 ms-10 slots, 5 ms-20 slots, and 10 ms-40 slots, respectively.

If the network element device indicates TDD-UL-DL as bi-periodic, the bi-periodic combination may include the following nine types: 0.5+0.5ms,1+1ms,1.25+1.25ms,2+2ms,2.5+2.5ms,5+5ms,10+10ms,2+ 0.5ms,0.5+2 ms.

Therefore, there are 16 possibilities in total, and thus, 4 bits can be used to carry the cycle type indication information.

When indicating a single cycle, the number of slots for SL is directly indicated without special processing.

The joint indication information in the two-cycle combination is exemplarily described below.

In one example, when 10+10ms bi-periodicity is indicated, it is required for indicating SL time domain resources in each period

For example, the first 4 bits may be used as the cycle type indication information to indicate the cycle length (10ms) of the first cycle and the cycle length (10ms) of the second cycle, then the subsequent 6 bits are used as the first time domain resource indication information to indicate the number of slots (SL time domain resources) available for the SL in the first cycle, and the remaining bits may be used as the difference indication information (assumed to be 2 bits) to indicate the difference, where 00 is-10 slots, 01 is-5 slots, 10 is + 5slots, and 11 is +10 slots.

When the terminal receives the joint indication information, the terminal can determine that TDD-UL-DL is a dual-cycle type by using cycle type indication information in the joint indication information, wherein the cycle length of two cycles is 10 ms; the bit number of the first time domain resource indication can be determined to be 6 bits according to the cycle length, and the number of available SL time slots in the first cycle can be determined by using the first time domain resource indication information; and determining the number of SL time slots of the second period by combining the first time domain resource indication information and the difference value indication information.

In one example, when 5+5ms bi-periodicity is indicated, it is required for indicating SL time domain resources in each period

Bit, then the first 4 bits can be used as the period type indication information to indicate TDD-UL-DL as a dual period type, and the period length of the first period(5ms) and a period length (5ms) of the second period, then, using subsequent 5 bits as first time domain resource indication information to indicate the number of slots available for SL in the first period, and using remaining bits as difference indication information (assuming 3 bits) to indicate a difference, where 000 is-8 slots, 001 is-6 slots, 010 is-4 slots, 011 is-2 slots, 100 is + 2slots, 101 is + 4slots, 110 is +6 slots, and 111 is +8 slots.

In one example, when 2.5+2.5ms bi-periodicity is indicated, time domain resources for indicating SL are required in each period

Bit, the resource (12 bits) of the TDD configuration reserved by the 3GPP is enough to indicate two periods, and in this case, the normal indication is sufficient, that is, the first 4 bits can be used as the period type indication information to indicate that the TDD-UL-DL is a dual period type, and indicate the period length (2.5ms) of the first period and the period length (2.5ms) of the second period, and then the subsequent 4 bits are used as the first time domain resource indication information to indicate the number of slots available for the SL in the first period, and then the remaining 4 bits are used to indicate the number of slots available for the SL in the second period.

Of course, the above description is exemplary, and the present disclosure does not limit the specific difference, the granularity of the specific difference is related to the number of bits left for the second period, and the greater the number of bits left for the second period, the more precise the difference can be divided.

Of course, the joint indication information may be in other forms, which are described as examples below.

In one example, the joint indication information may include first period indication information, first time domain resource indication information, and difference indication information, where the first period indication information may be used to indicate a period length of the first period, the first time domain resource indication information may be used for the number of slots available for SL in the first period, and the difference indication information may be used to indicate whether there is a SL time domain resource of the second period and/or the second period or a difference with respect to the time domain resource of the first period.

The following is an exemplary presentation of a 60KHz SCS.

Under 60KHz, the network element device may configure seven single periods of TDD-UL-DL, including 0.5 ms-2 slots, 1 ms-4 slots, 1.25 ms-5 slots,2 ms-8 slots, 2.5 ms-10 slots, 5 ms-20 slots, and 10 ms-40 slots.

In one example, when the first period is 10ms, the first 3 bits may be used as the first period indication information to indicate the period length (10ms) of the first period, 6 bits may be used as the first time domain resource indication information to indicate the number of slots available for SL in the first period, and the remaining bits (e.g., 3 bits) may be used as the difference indication information.

In one example, the difference indication information may include: "000" means no second cycle; "001" indicates that there is a second period and the difference is-10 slots; 010 indicates that there is a second period and the difference is-7 slots; 011 indicates that there is a second period and the difference is-4 slots; 100 indicates that there is a second cycle and the difference is-1 slot; 101 indicates that there is a second cycle and the difference is +2 slots; 110 indicates that there is a second period and the difference is +5 slots; 111 indicates that there is a second cycle and the difference is +8 slots.

Of course, if there is a second period, the period length of the second period may be set in advance, for example, the period length of the second period may be set to 10 ms.

When the terminal receives the joint indication information, it may determine that the cycle length of the first cycle is 10ms according to the first cycle length indication information, determine the number of timeslots (for example, 10 timeslots) available for the SL in the TDD-UL-DL of the first cycle according to the first time domain indication information, determine whether the second cycle exists according to the difference indication information, in case that the second cycle exists (not 000), determine the cycle length of the second cycle (10ms), determine the number of timeslots available for the SL in the TDD-UL-DL of the second cycle (assuming that the difference indication information is "111", it may determine the number of timeslots available for the SL in the TDD-UL-DL of the second cycle is 18).

In one example, when the first period is 5ms, the first 3 bits can be used as the first period fingerThe indication information indicates the cycle length (5ms) of the first cycle, using

The bit as the first time domain resource indication information indicates the number of available SL time slots of the TDD-UL-DL of the first period. There are 4 bits (12-3-5) left, and the remaining 4 bits can be used as the difference indication information to indicate whether there is the second cycle and the difference of the second cycle, such as 0000 to indicate that there is no second cycle; 0001 indicates that there is a second cycle and the difference is-7 slots; 0010 indicates that there is a second period and the difference is-6 slots; 0011 indicates that there is a second period and the difference is-5 slots; 0100 indicates that there is a second cycle and the difference is-4 slots; 0101 indicates that there is a second cycle and the difference is-3 slots; 0110 indicates that there is a second cycle and the difference is-2 slots; 0111 indicates that there is a second cycle and the difference is-1 slot; 1000 indicates that there is a second cycle and the difference is +1 slot; 1001 indicates that there is a second cycle and the difference is +2 slots; 1010 indicates that there is a second cycle and the difference is +3 slots; 1011 indicates that there is a second period and the difference is +4 slots; 1100 indicates that there is a second cycle and the difference is +5 slots; 1101 indicates that there is a second cycle and the difference is +6 slots; 1101 indicates that there is a second period and the difference is +7 slots; 1111 indicates that there is a second cycle and the difference is + 8slots

Of course, the above description is exemplary and should not be construed as limiting the disclosure, and in other embodiments, the difference corresponding to the difference indication information may be set to be other, and the disclosure is not limited thereto.

Through the method, the embodiment of the disclosure can compress the indication information indicating the TDD-UL-DL period and the SL time domain information, and perform joint indication on the TDD-UL-DL period and the SL time domain information through the joint indication information, so as to reduce the load of PSBCH and improve the communication efficiency.

Referring to fig. 4, fig. 4 is a flowchart illustrating a parameter determination method according to an embodiment of the disclosure.

The method is applied to the terminal and comprises the following steps:

step S21, receiving joint indication information through a physical side link broadcast channel PSBCH, wherein the joint indication information is used for jointly indicating a time division duplex-uplink-downlink TDD-UL-DL period and a side link Sidelink time domain resource in the period;

step S22, determining a TDD-UL-DL period and a Sidelink time domain resource in the period according to the joint indication information.

Through the above method, the embodiment of the disclosure may receive the joint indication information through the PSBCH, so as to determine the TDD-UL-DL period and the Sidelink time domain resource in the period according to the joint indication information, thereby improving the efficiency of configuring the TDD-UL-DL period and the Sidelink time domain resource in the period.

and under the condition that the second indication information comprises preset indication information, determining that the TDD-UL-DL does not have a second period, namely, not determining the second period of the TDD-UL-DL and the Sildelink time domain resource in the second period.

It should be noted that the parameter determining method corresponds to the information sending method, and for a specific introduction, reference is made to the description of the information sending method before, which is not described herein again.

Referring to fig. 5, fig. 5 is a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

The device is applied to network element equipment, and the device comprises:

a sending module 10, configured to send joint indication information through a physical Sidelink broadcast channel PSBCH, where the joint indication information is used to jointly indicate a period of time division duplex-uplink-downlink TDD-UL-DL and a Sidelink time domain resource in the period.

Through the above apparatus, the embodiment of the present disclosure may send the joint indication information through the PSBCH, so as to jointly indicate the period of the TDD-UL-DL and the SL time domain resource in the period by using the joint indication information, that is, the same indication information (joint indication information) indicates both the period of the TDD-UL-DL and the SL time domain resource in the period, thereby implementing compression of the TDD-UL-DL configuration information, reducing the load of the PSBCH, and improving the communication efficiency.

It should be noted that the information sending apparatus is an apparatus corresponding to the information sending method, and for specific introduction, reference is made to the description of the information sending method before, which is not described herein again.

Referring to fig. 6, fig. 6 is a block diagram of a parameter determining apparatus according to an embodiment of the disclosure.

The device is applied to a terminal, and comprises:

Through the above apparatus, the embodiment of the present disclosure may receive the joint indication information through the PSBCH, so as to determine the TDD-UL-DL period and the Sidelink time domain resource in the period according to the joint indication information, thereby improving the efficiency of configuring the TDD-UL-DL period and the Sidelink time domain resource in the period.

It should be noted that the parameter determining device is a device corresponding to the parameter determining method, and for a specific introduction, reference is made to the description of the parameter determining method before, which is not described herein again.

Referring to fig. 7, fig. 7 is a block diagram of a parameter determining apparatus according to an embodiment of the disclosure. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 7, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the device 800 to perform the above-described methods.

Referring to fig. 8, fig. 8 shows a block diagram of an information transmitting apparatus 1900 according to an embodiment of the present disclosure. For example, the apparatus 1900 may be provided as a server. Referring to FIG. 8, the device 1900 includes a processing component 1922 further including one or more processors and memory resources, represented by memory 1932, for storing instructions, e.g., applications, executable by the processing component 1922. The application programs stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the above-described method.

The device 1900 may also include a power component 1926 configured to perform power management of the device 1900, a wired or wireless network interface 1950 configured to connect the device 1900 to a network, and an input/output (I/O) interface 1958. The device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, MacOS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 1932, is also provided that includes computer program instructions executable by the processing component 1922 of the apparatus 1900 to perform the above-described methods.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, 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/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An information sending method, wherein the method is applied to a network element device, and the method comprises:

2. The method of claim 1, wherein different values of the joint indication information correspond to different periods and Sidelink time domain resource combinations.

3. The method of claim 1, wherein the joint indication information comprises first indication information and second indication information, the first indication information is used for jointly indicating a first period of TDD-UL-DL and a Sidelink time domain resource in the first period, and the second indication information is used for jointly indicating a second period of TDD-UL-DL and a Sidelink time domain resource in the second period.

4. The method of claim 3, wherein the joint indication information indicates TDD-UL-DL having no first period if the first indication information comprises preset indication information; or in the case that the second indication information includes preset indication information, the joint indication information indicates that the TDD-UL-DL does not have the second period.

5. The method of claim 1, wherein the joint indication information comprises a periodicity indicator for indicating TDD-UL-DL as monocycle or bi-cycle.

6. A parameter determination method is applied to a terminal, and comprises the following steps:

7. The method of claim 6, wherein the joint indication information comprises first indication information and second indication information, the first indication information is used for jointly indicating a first period of TDD-UL-DL and a Sidelink time domain resource in the first period, the second indication information is used for jointly indicating a second period of TDD-UL-DL and a Sidelink time domain resource in the second period, and the determining the period of TDD-UL-DL and the Sidelink time domain resource in the period according to the joint indication information comprises:

8. The method of claim 7,

the determining a first period of TDD-UL-DL and a Sidelink time domain resource in the first period by using the first indication information includes:

9. The method of claim 6, wherein the joint indication information includes a period indicator, and wherein the period indicator is used to indicate that TDD-UL-DL is one period or two periods, and wherein determining the period of TDD-UL-DL and the Sidelink time domain resource in the period according to the joint indication information comprises:

10. An information sending apparatus, wherein the apparatus is applied to a network element device, and the apparatus comprises:

11. A parameter determining apparatus, applied to a terminal, the apparatus comprising:

12. An information transmission apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

the information transmission method according to any one of claims 1-5 is performed.

13. A parameter determination apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

performing the parameter determination method according to any of claims 6-9.

14. A non-transitory computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the information transmitting method of any one of claims 1 to 5.

15. A non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the parameter determination method of any one of claims 6 to 9.