CN110061818B

CN110061818B - Signal mode determination method, signal mode obtaining method, signal mode determination device, signal mode obtaining device and storage medium

Info

Publication number: CN110061818B
Application number: CN201810048720.3A
Authority: CN
Inventors: 杨瑾; 卢有雄; 黄双红
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-01-18
Filing date: 2018-01-18
Publication date: 2022-04-29
Anticipated expiration: 2038-01-18
Also published as: WO2019141158A1; CN110061818A

Abstract

The invention provides a method and a device for determining a signal mode and obtaining the signal mode, and a storage medium. The method for determining the signal mode comprises the following steps: the method comprises the steps that a sending end determines a signal mode for sending a Sidelink signal on a side link Sidelink, wherein the Sidelink signal comprises any one or more of the following: PSCCH signal, pscsch signal, PSDCH signal, PSBCH signal; the transmitting end transmits the Sidelink signal on the side link using the determined signal pattern. The problem that the signal mode used for transmitting the Sidelink signal cannot be determined when the Sidelink signal is transmitted on the side link Sidelink is solved, and the effect of determining the signal mode used for transmitting the Sidelink signal on the side link Sidelink is achieved.

Description

Signal mode determination method, signal mode obtaining method, signal mode determination device, signal mode obtaining device and storage medium

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for determining a signal pattern, a method and an apparatus for obtaining a signal pattern, and a storage medium.

Background

With the development of wireless communication technology and the increasing demand of users for communication, fifth Generation mobile communication (5th Generation, abbreviated as 5G) technology has become a trend of future network development in order to meet higher, faster and more recent communication needs.

In a 5G communication system, there are 2 modes for a User Equipment (UE) to perform signal transmission: cyclic Prefix-OFDM Orthogonal Frequency Division multiplexing (CP-OFDM for short) and Discrete Fourier Transform Spread OFDM (DFT-S-OFDM for short) based on Discrete Fourier Transform. When the UE sends a signal to the network side, the UE may generate a transmission signal using one of the modes according to the configuration, and send the signal to the network side on the corresponding resource. From the perspective of the network side, the resource and the mode used by the UE to transmit the signal can be determined, and the network side receives the signal on the corresponding resource according to the corresponding mode.

In a Sidelink sildenk communication system, when there is a service to be transmitted between UEs, the service data between the UEs is directly transmitted to a target UE by a data source UE through the sildenk without forwarding on the network side, fig. 1 is a schematic diagram of a sildenk communication structure according to the related art, as shown in fig. 1, such a mode in which the UE and the UE directly communicate has a characteristic obviously different from a conventional cellular system communication mode, for a short-distance communication user capable of applying the sildenk communication, the sildenk communication not only saves wireless spectrum resources, but also reduces data transmission pressure of a core network, can reduce system resource occupation, increase the spectral efficiency of the cellular communication system, reduce terminal transmission power consumption, and save network operation cost to a great extent.

In the Sidelink communication system, the UEs use the Sidelink resources to transmit information, and the Sidelink communication method includes Device to Device (D2D) communication, Vehicle to Vehicle (V2V) communication, and the like according to specific application scenarios, service types, and the like.

In the related art, in the Sidelink communication, when the UE transmits the Sidelink control information using the PSCCH resource and transmits the Sidelink data using the PSCCH resource, a DFT-S-OFDM mode (also referred to as a Single Carrier-Frequency Division Multiple Access (SC-FDMA)) must be used for a signal transmitted on the PSCCH or PSCCH resource. Correspondingly, the UE receiving the signal at the Sidelink monitors the resource in the Sidelink resource pool and receives the processing signal by receiving the DFT-S-OFDM signal, as shown in fig. 2, the UE blindly detects the received SCI information in the PSCCH resource pool, and further receives the data information on the PSCCH resource according to the indication of the SCI when the SCI information is detected.

In the prior art Sidelink communication method, a UE transmits a Sidelink signal using a resource in a Sidelink resource pool (Sidelink resource pool). The side link resource pool includes PSCCH) resource pool for carrying side link control information, and a Physical side link Shared Channel (PSCCH) resource pool for carrying side link data service information. The UE uses DFT-S-OFDM mode for Sidelink signal transmission. Correspondingly, the UE which receives the signal at the Sidelink monitors the resource in the Sidelink resource pool and receives and processes the signal by adopting a mode of receiving the DFT-S-OFDM signal.

In the related art, no effective solution has been proposed so far for the problem that when a Sidelink sildenk signal is transmitted, a signal pattern used for transmitting the sildenk signal cannot be determined.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for determining a signal pattern, a method and an apparatus for obtaining a signal pattern, and a storage medium, so as to solve at least a problem that a signal pattern used for sending a sildenk signal cannot be determined when the sildenk signal is sent on a Sidelink in the related art.

According to an embodiment of the present invention, there is provided a method for determining a signal pattern, including: the method comprises the steps that a sending end determines a signal mode for sending a Sidelink signal on a side link Sidelink, wherein the Sidelink signal comprises any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal; the transmitting end transmits the Sidelink signal on the side link using the determined signal pattern.

Optionally, the signal pattern is a signal pattern including: cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode, or discrete Fourier transform-based orthogonal frequency division multiplexing DFT-S-OFDM mode

Optionally, the sending end determines a signal mode for sending the Sidelink signal on the side link, where the signal mode includes at least one of: the sending end determines a signal mode according to the configuration information of the side link resource pool; the sending end determines a signal mode according to system predefinition; the sending end determines a signal mode according to the configuration indication of the network side; the sending end selects and determines a signal mode; the sending end determines the signal mode of the associated signal according to the corresponding relation between the signal mode of the reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more of the Sidelink signals, and the associated signal is any one or more of the Sidelink signals.

Optionally, the determining, by the sending end, the signal mode according to the configuration information of the side link resource pool includes: the configuration information of the side link resource pool comprises an indication of a signal mode, and the sending end determines the configured signal mode according to the configuration information of the side link resource pool.

Optionally, the determining, by the sending end, the signal mode according to the configuration indication of the network side includes: and the sending end determines the signal mode according to the high-level signaling and/or the physical layer signaling of the network side.

Optionally, the sending end selects a certain signal mode, including: a sending end randomly selects and determines a signal mode from available signal modes; alternatively, the transmitting end selects the determined signal mode according to a predefined rule.

Optionally, the sending end selects and determines the signal mode according to a predefined rule, and the sending end determines the signal mode according to any one or more of the following factors: the device capability of the sending end, the service requirement, the cellular communication uplink signal mode, the monitoring result of the sending end to the side link, and the measuring result of the sending end to the side link.

Optionally, determining the signal pattern of the associated signal according to the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal includes: the sending end determines a signal mode of an associated signal corresponding to the reference signal according to the signal mode of the reference signal, wherein a unique corresponding relation exists between the signal mode of the reference signal and the signal mode of the associated signal; the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal is predefined by the system or indicated by the network side configuration.

Optionally, the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal includes any one or more of: the PSCCH signal is a reference signal, and the PSSCH signal is a correlation signal; the PSBCH signal is a reference signal, and the PSCCH signal is a correlation signal; the PSBCH signal is a reference signal, and the PSCCH signal and the PSSCH signal are associated signals; the PSDCH signal is a reference signal, and the PSCCH signal is a correlation signal: the PSDCH signal is a reference signal, and the PSCCH signal and the PSSCH signal are associated signals; and determining the signal mode of the associated signal corresponding to the reference signal according to the signal mode of the reference signal.

Optionally, the determining, by the transmitting end, a signal mode of the Sidelink signal includes: when the sending end determines the signal modes of various Sidelink signals, the sending end determines different signal modes for various Sidelink signals.

Optionally, after the sending end determines the signal mode, the sending end indicates the signal mode to be used, where the signal mode includes at least one of:

the sending end indicates the signal mode adopted by the sending end through a high-level signaling and/or a physical layer signaling;

the sending end implicitly indicates the signal mode adopted by the sending end through a demodulation reference signal.

Optionally, the higher layer signaling includes: wireless connection control signaling, or side link broadcast messages; the physical layer signaling comprises: side link control information.

Optionally, the implicitly indicating, by the sending end, the signal mode adopted by the sending end through a demodulation reference signal includes:

implicitly indicating the respective signal pattern by a sequence or cyclic shift used by the demodulation reference signal.

According to another embodiment of the present invention, there is provided a signal pattern determination apparatus including: a determining module, configured to determine a signal mode for transmitting a Sidelink signal on a Sidelink, where the Sidelink signal includes any one or more of: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal; a sending module, configured to send the Sidelink signal on the side link using the determined signal pattern.

Optionally, the determining module is configured to determine a signal mode for transmitting the Sidelink signal on the side link, where the signal mode includes at least one of:

determining the signal mode according to the configuration information of the side link resource pool;

determining the signal pattern according to a system predefinition;

determining the signal mode according to the configuration indication of the network side;

selecting and determining the signal mode;

and determining the signal mode of the associated signal according to the corresponding relation between the signal mode of a reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more than one of the Sidelink signals, and the associated signal is any one or more than one of the Sidelink signals.

Optionally, the determining module is configured to determine the configured signal mode according to configuration information of the sidelink resource pool:

the configuration information of the side link resource pool comprises an indication of the signal mode, and the configured signal mode is determined according to the configuration information of the side link resource pool.

Optionally, the determining module is configured to determine the signal mode according to a configuration indication of a network side:

and determining the signal mode according to the higher layer signaling and/or the physical layer signaling of the network side.

According to another embodiment of the present invention, there is also provided a method for obtaining a signal pattern, including:

a receiving end obtains a signal mode of a side link Sidelink signal; wherein the Sidelink signal comprises any one or more of: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

and the receiving end receives the Sidelink signal on the side link according to the obtained signal mode.

Optionally, the signal mode is a CP-OFDM mode or a DFT-S-OFDM mode based on discrete fourier transform.

Optionally, the obtaining, by the receiving end, the signal mode of the Sidelink signal includes at least one of:

the receiving end obtains the signal mode according to the configuration information of the side link resource pool;

the receiving end obtains the signal mode according to system predefinition;

the receiving end obtains the signal mode according to the configuration indication of the network side;

the receiving end obtains the signal mode according to the indication of the transmitting end;

the receiving end obtains the signal mode according to detection;

and the receiving end acquires the signal mode of the associated signal according to the corresponding relation between the signal mode of the reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more than one of the Sidelink signals, and the associated signal is any one or more than one of the Sidelink signals.

Optionally, the obtaining, by the receiving end, the signal mode according to configuration information of the side link resource pool includes:

the configuration information of the side link resource pool comprises an indication of the signal mode, and the receiving end obtains the configured signal mode according to the configuration information of the side link resource pool.

Optionally, the obtaining, by the receiving end, the signal mode according to a configuration indication of a network side includes: and the receiving end obtains the signal mode according to the high-level signaling and/or the physical layer signaling indication of the network side.

Optionally, the obtaining, by the receiving end, the signal mode according to an instruction of a transmitting end includes:

the receiving end receives the high-level signaling and/or the physical layer signaling of the sending end, and obtains the signal mode according to the indication information in the received high-level signaling and/or the physical layer signaling; wherein,

the high layer signaling comprises: wireless connection control signaling, or side link broadcast messages; the physical layer signaling comprises: side link control information.

Optionally, the obtaining, by the receiving end, the signal pattern according to the detection includes:

the receiving end obtains the signal mode of the Sidelink signal by detecting a sequence or cyclic shift used by a demodulation reference signal in the Sidelink signal.

Optionally, obtaining the signal pattern of the associated signal according to the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal includes:

the receiving end obtains a signal mode of the associated signal corresponding to the reference signal according to the signal mode of the reference signal, wherein a unique corresponding relation exists between the signal mode of the reference signal and the signal mode of the associated signal;

the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal is predefined by the system or indicated by a network side configuration.

Optionally, the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal includes any one or more of:

the PSCCH signal is a reference signal, and the PSSCH signal is a correlation signal;

the PSBCH signal is a reference signal, and the PSCCH signal is an associated signal;

the PSBCH signal is a reference signal, and the PSCCH signal and the PSSCH signal are associated signals;

the PSDCH signal is a reference signal, and the PSCCH signal is a related signal;

the PSDCH signal is a reference signal, and the PSCCH signal and the PSSCH signal are associated signals;

and determining the signal mode of the corresponding associated signal according to the signal mode of the reference signal.

According to another embodiment of the present invention, there is provided a signal pattern obtaining apparatus including: an obtaining module, configured to obtain a signal pattern of a Sidelink signal on a Sidelink; wherein, the Sidelink signal comprises any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal; and the receiving module is used for receiving the Sidelink signal on the side link according to the acquired signal mode.

Optionally, the obtaining module is further configured to obtain a signal pattern of the Sidelink signal, where the signal pattern includes at least one of:

acquiring the signal mode according to configuration information of the side link resource pool;

obtaining the signal pattern according to system predefinition;

obtaining the signal mode according to the configuration indication of the network side;

obtaining the signal mode according to the instruction of the sending end;

obtaining the signal pattern according to the detection;

and obtaining the signal mode of the associated signal according to the corresponding relation between the signal mode of a reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more than one of the Sidelink signals, and the associated signal is any one or more than one of the Sidelink signals.

Optionally, the obtaining module is configured to obtain the signal pattern according to configuration information of the side link resource pool, and includes:

the configuration information of the side link resource pool comprises an indication of the signal mode, and the receiving end obtains the configured signal mode according to the configuration information of the side link resource pool:

the configuration information of the side link resource pool includes an indication of the signal mode, and is used for obtaining the configured signal mode according to the configuration information of the side link resource pool.

Optionally, the obtaining module is further configured to obtain the signal mode according to a configuration indication of a network side:

and obtaining the signal mode according to the high-layer signaling and/or physical layer signaling indication of the network side.

According to a further embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.

According to the invention, a sending end determines a signal mode for sending the Sidelink signal on the side link Sidelink, wherein the Sidelink signal comprises any one or more of the following signals: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal; the sending end sends the Sidelink signal on the side link by using the determined signal mode, so that the problem that the signal mode used for sending the Sidelink signal cannot be determined when the Sidelink signal is sent on the side link, and the effect of determining the signal mode used for sending the Sidelink signal on the side link is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic diagram of a sildelink communication structure according to the related art;

fig. 2 is a schematic diagram of a sildelink signal reception flow according to the related art;

FIG. 3 is a flow chart of a method of determining a signal pattern according to an embodiment of the present invention;

fig. 4 is a block diagram of a signal pattern determining apparatus according to an embodiment of the present invention;

FIG. 5 is a flow chart of a method of obtaining a signal pattern according to an embodiment of the present invention;

fig. 6 is a block diagram of a signal pattern obtaining apparatus according to an embodiment of the present invention;

fig. 7 is a schematic flow chart of a process for transmitting a Sidelink signal according to an alternative embodiment of the present invention;

fig. 8 is a schematic flow chart of receiving a Sidelink signal according to an alternative embodiment of the present invention;

fig. 9 is a schematic diagram of a first method of determining a sildelink signal pattern in accordance with an alternative embodiment of the present invention;

fig. 10 is a schematic diagram of a second method of determining a pattern of a sildelink signal according to an alternative embodiment of the invention;

fig. 11 is a schematic diagram of a third method of determining a pattern of a sildelink signal according to an alternative embodiment of the invention;

fig. 12 is a schematic diagram of a fourth method of determining a sildelink signal pattern in accordance with an alternative embodiment of the present invention;

fig. 13 is a schematic diagram of a fifth method of determining a sildelink signal pattern according to an alternative embodiment of the invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

In order to better understand the technical solutions of the following embodiments and preferred embodiments, the following embodiments and preferred embodiments are briefly described with reference to the basic concepts.

When the UE performs information interaction on the Sidelink, the sending end UE sends Sidelink Control information sci (Sidelink Control information) on PSCCH resources, and indicates, to the receiving end UE, the PSCCH resources used by the transmitted Sidelink data information, and related Control information, such as modulation and Coding scheme (mcs), power Control indication, data retransmission indication, and the like. Further, the sending end UE sends the Sidelink data on the PSSCH resource indicated by the SCI. In addition, the UE may also send the Sidelink Broadcast information on a psbch (physical Sidelink Broadcast channel) resource, and send the Sidelink Discovery information on a psdch (physical Sidelink Discovery channel) resource.

In the Sidelink communication, a network side configures a Sidelink resource pool for the UE, or a system configures the Sidelink resource pool in advance, and the UE uses the resource in the Sidelink resource pool to carry the Sidelink information. Specifically, the Sidelink resource pool includes a PSCCH resource pool and a pscsch resource pool, and in addition, a PSBCH resource pool configured for notifying broadcast information of the Sidelink communication, and a PSDCH resource pool configured for carrying a Sidelink discovery signal.

The PSCCH resource pool refers to a group of resources for carrying the sildelink control information SCI, and is configured by the network side through physical layer or higher layer signaling, or is preconfigured by the system. The PSCCH resource pool comprises one or more time domain resource units in the time domain, and the time domain resource units include any one of: subframe, slot, symbol. The PSCCH resource pool includes one or more RBs, or one or more RB groups (RBGs) in the frequency domain, and the included plurality of RBs or RBGs may be continuous or discontinuous.

The psch resource pool refers to a group of resources for carrying sildenk data, and is configured by a network side through physical layer or higher layer signaling, or is preconfigured by a system. The PSSCH resource pool comprises one or more time domain resource units in a time domain, and the time domain resource units comprise any one of the following items: subframe, slot, symbol. The PSSCH resource pool comprises one or more RBs or one or more RBGs in the frequency domain, and the plurality of RBs or RBGs contained in the PSSCH resource pool can be continuous or discontinuous.

The UE is supported in a 5G communication system to adopt two baseband signal modes: CP-OFDM and DFT-S-OFDM. When a signal transmitted by a UE in a Sidelink communication may adopt more than one signal mode, for example, a CP-OFDM mode and a DFT-S-OFDM mode, a transmitting end UE needs to determine to use one of the modes for generating a transmitted signal, and meanwhile, a receiving end UE needs to be able to distinguish and determine the mode of the received signal, and further process the received signal according to a receiving method of the corresponding mode.

Example 1

In accordance with an embodiment of the present invention, there is provided an embodiment of a method for determining a signal pattern, it being noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than presented herein.

Fig. 3 is a flowchart of a method for determining a signal pattern according to an embodiment of the present invention, as shown in fig. 3, the method includes the following steps:

step S102, a transmitting end determines a signal mode for transmitting a sidelink signal on a sidelink, where the sidelink signal includes any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

and step S104, the sending end sends the S idel ink signal on the side link by using the determined signal mode.

Through the steps, the transmitting end determines a signal mode for transmitting the Sidelink signal on the side link Sidelink, wherein the Sidelink signal comprises any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal; the sending end sends the Sidelink signal on the side link by using the determined signal mode, so that the problem that the signal mode used for sending the Sidelink signal cannot be determined when the Sidelink signal is sent on the side link, and the effect of determining the signal mode used for sending the Sidelink signal on the side link is achieved.

In an optional embodiment, the determining, by the transmitting end, the signal mode for transmitting the Sidelink signal on the Sidelink includes at least one of: a cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode or an orthogonal frequency division multiplexing DFT-S-OFDM mode based on discrete Fourier transform.

In an optional embodiment, the sending end determines a signal mode for sending the Sidelink signal on the side link, where the signal mode includes at least one of: the sending end determines a signal mode according to the configuration information of the side link resource pool; the sending end determines a signal mode according to system predefinition; the sending end determines a signal mode according to the configuration indication of the network side; the sending end selects and determines a signal mode; the sending end determines the signal mode of the associated signal according to the corresponding relation between the signal mode of the reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more of the Sidelink signals, and the associated signal is any one or more of the Sidelink signals.

In an optional embodiment, the determining, by the sending end, the signal mode according to the configuration information of the side link resource pool includes: the configuration information of the side link resource pool comprises an indication of a signal mode, and the sending end determines the configured signal mode according to the configuration information of the side link resource pool.

In an optional embodiment, the determining, by the sending end, the signal mode according to the configuration indication of the network side includes: and the sending end determines the signal mode according to the high-level signaling and/or the physical layer signaling of the network side.

In an alternative embodiment, the transmitting end selects the certain signal mode, including: a sending end randomly selects and determines a signal mode from available signal modes; alternatively, the transmitting end selects the determined signal mode according to a predefined rule.

In an alternative embodiment, the sending end selects the determined signal mode according to a predefined rule, and the sending end determines the signal mode according to any one or more of the following factors: the device capability of the sending end, the service requirement, the cellular communication uplink signal mode, the monitoring result of the sending end to the side link, and the measuring result of the sending end to the side link.

In an optional embodiment, the determining, by the transmitting end, the signal mode of the Sidelink signal transmitted on the side link may include, according to a correspondence between the signal mode of the reference signal and the signal mode of the associated signal: the sending end determines a signal mode of an associated signal corresponding to the reference signal according to the signal mode of the reference signal, wherein a unique corresponding relation exists between the signal mode of the reference signal and the signal mode of the associated signal; the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal is predefined by the system or indicated by the network side configuration.

In an optional embodiment, the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal is predefined by the system or indicated by the network side configuration, and the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal comprises any one or more of:

the PSBCH signal is a reference signal, and the PSCCH signal is a correlation signal;

the PSDCH signal is a reference signal, and the PSCCH signal is a correlation signal:

and determining the signal mode of the associated signal corresponding to the reference signal according to the signal mode of the reference signal.

It should be further noted that there are 4 signals, only two signal patterns, and necessarily more than 2 signals are the same pattern.

Example 2

In this embodiment, a device for determining a signal mode is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 4 is a block diagram of a signal pattern determining apparatus according to an embodiment of the present invention, as shown in fig. 4, the apparatus including:

a determining module 40, configured to determine a signal mode for transmitting a Sidelink signal on a Sidelink, where the Sidelink signal includes any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

a sending module 42, configured to send the Sidelink signal on the side link using the determined signal pattern.

Through the comprehensive action of the modules, the sending end determines a signal mode for sending the Sidelink signal on the side link Sidelink, wherein the Sidelink signal comprises any one or more of the following components: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal; the sending end sends the Sidelink signal on the side link by using the determined signal mode, so that the problem that the signal mode used for sending the Sidelink signal cannot be determined when the Sidelink signal is sent on the side link, and the effect of determining the signal mode used for sending the Sidelink signal on the side link is achieved.

In an optional embodiment, the determining, by the transmitting end, the signal mode for transmitting the Sidelink signal on the Sidelink includes at least one of: cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode, or discrete Fourier transform-based orthogonal frequency division multiplexing DFT-S-OFDM mode

In an optional embodiment, the determining module 40 is further configured to determine a signal mode for transmitting the Sidelink signal on the side link, where the signal mode includes at least one of: determining a signal mode according to configuration information of the side link resource pool; and is further configured to determine a signal pattern according to a system predefined; determining a signal mode according to a configuration instruction of a network side; selecting and determining a signal mode; and determining the signal mode of the associated signal according to the corresponding relation between the signal mode of the reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more than one of the Sidelink signals, and the associated signal is any one or more than one of the Sidelink signals.

In an optional embodiment, the determining module 40 is further configured to determine, according to the configuration information of the side link resource pool, a signal pattern:

the configuration information of the side link resource pool includes an indication of the signal mode, and is further used for determining the configured signal mode according to the configuration information of the side link resource pool.

In an optional embodiment, the determining module 40 is further configured to determine the signal mode according to a configuration indication of the network side: and determining the signal mode according to the higher layer signaling and/or the physical layer signaling of the network side.

In an alternative embodiment, the determining module 40 is further configured to select the determining signal mode: randomly selecting a certain signal pattern among the available signal patterns; alternatively, the signal pattern is determined according to a predefined rule selection.

In an alternative embodiment, the determining module 40 is further configured to select the determined signal pattern according to a predefined rule, and the determining module 40 is further configured to determine the signal pattern according to any one or more of the following factors: the device capability of the sending end, the service requirement, the cellular communication uplink signal mode, the monitoring result of the sending end to the side link, and the measuring result of the sending end to the side link.

In an optional embodiment, the determining module 40 is further configured to determine a signal pattern of the Sidelink signal transmitted on the side link, and determining the signal pattern of the associated signal according to a correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal may include: determining a signal mode of an associated signal corresponding to the reference signal according to the signal mode of the reference signal, wherein a unique corresponding relation exists between the signal mode of the reference signal and the signal mode of the associated signal; the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal is predefined by the system or indicated by the network side configuration.

Optionally, the determining module 40 is further configured to determine a signal pattern of the Sidelink signal: when the sending end determines the signal modes of various Sidelink signals, the sending end determines different signal modes for various Sidelink signals.

Optionally, the determining module 40 is further configured to, after determining the signal pattern, indicate the signal pattern to be used, where the signal pattern includes at least one of:

indicating the signal mode adopted by the sending end through high-layer signaling and/or physical layer signaling;

the determining module 40 is further configured to implicitly indicate the signal mode adopted by the transmitting end through a demodulation reference signal.

Optionally, the determining module 40 is further configured to implicitly indicate the signal mode adopted by the transmitting end by demodulating a reference signal: implicitly indicating the respective signal pattern by a sequence or cyclic shift used by the demodulation reference signal.

Example 3

Fig. 5 is a flowchart of a method for obtaining a signal pattern according to an embodiment of the present invention, as shown in fig. 5, the method includes the following steps:

step S502, a receiving end obtains a signal mode of a Sidelink signal; wherein the Sidelink signal comprises any one or more of: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

step S504, the receiving end receives the Sidelink signal on the side link according to the obtained signal mode.

Through the steps, the receiving end obtains the signal mode of the side link Sidelink signal; wherein the Sidelink signal comprises any one or more of: the method comprises the steps that a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal are received by a receiving end on a side link according to an obtained signal mode, and therefore the problem that when the side link Sidelink signal is received, the signal mode used for sending the Sidelink signal cannot be determined, and the Sidelink signal can be received according to the obtained signal mode used for sending the Sidelink signal.

the receiving end obtains the signal mode according to system predefinition;

the receiving end obtains the signal mode according to detection;

Example 4

In this embodiment, a device for obtaining a signal pattern is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated for what has been described. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 6 is a block diagram of a device for obtaining a signal pattern according to an embodiment of the present invention, as shown in fig. 6, including:

an obtaining module 60, configured to obtain a signal pattern of the Sidelink signal on the Sidelink; wherein, the Sidelink signal comprises any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

a receiving module 62, configured to receive the Sidelink signal according to the acquired signal pattern on the side link.

Through the function of the module, a signal mode of a Sidelink signal is obtained; wherein the Sidelink signal comprises any one or more of: the method comprises the steps of receiving a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal, a physical side link broadcast channel PSBCH signal and receiving the Sidelink signal on a side link according to an obtained signal pattern, so that the problem that the signal pattern used for sending the Sidelink signal cannot be determined when the Sidelink signal is received on the side link can be solved, and the Sidelink signal can be received according to the obtained signal pattern used for sending the Sidelink signal.

Optionally, the obtaining module 60 is further configured to obtain a signal pattern of the Sidelink signal, where the signal pattern includes at least one of:

obtaining the signal pattern according to system predefinition;

obtaining the signal mode according to the instruction of the sending end;

obtaining the signal pattern according to the detection;

Optionally, the obtaining module 60 is further configured to obtain the signal mode according to configuration information of the side link resource pool:

the configuration information of the side link resource pool includes an indication of the signal mode, and is further configured to obtain the configured signal mode according to the configuration information of the side link resource pool.

Optionally, the obtaining module 60 is further configured to obtain the signal pattern according to a configuration indication of the network side: and obtaining the signal mode according to the high-layer signaling and/or physical layer signaling indication of the network side.

Optionally, the obtaining module 60 is further configured to obtain the signal pattern according to an instruction of a sending end:

receiving a high-level signaling and/or a physical layer signaling of the sending end, and acquiring the signal mode according to indication information in the received high-level signaling and/or physical layer signaling; wherein,

Optionally, the obtaining module 60 is further configured to obtain the signal pattern according to the detection, and includes:

the signal pattern of the Sidelink signal is obtained by detecting a sequence or cyclic shift used for a demodulation reference signal in the Sidelink signal.

Optionally, the obtaining module 60 is further configured to obtain, according to a correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal, the signal pattern of the associated signal:

obtaining a signal pattern of the associated signal corresponding to the reference signal according to the signal pattern of the reference signal, wherein a unique corresponding relation exists between the signal pattern of the reference signal and the signal pattern of the associated signal;

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

From the above description, it can be seen that the above embodiments achieve the following technical effects (it is to be noted that these effects are those that certain preferred embodiments can achieve): the problem that the signal mode used for transmitting the Sidelink signal cannot be determined when the Sidelink signal is transmitted on the side link is solved, and the effect of determining the signal mode used for transmitting the Sidelink signal on the side link is achieved.

The data processing method is described below with reference to the preferred embodiments, but is not intended to limit the scope of the embodiments of the present invention.

Preferred embodiment 1

In the preferred embodiment, a method for determining a signal mode is provided, which is used when a Sidelink signal may be transmitted in multiple modes, where a method for a sending end UE to determine a signal mode used for transmitting the signal, and a method for a receiving end UE to obtain a mode for receiving the Sidelink signal are provided, so that the receiving end UE can obtain the mode of the received Sidelink signal, and further process the received signal by using a corresponding receiving processing method. The problem that the receiving end UE cannot receive signals when the Sidelink signal mode is uncertain is solved.

When the Sidelink transmits a signal, the UE supports using multiple signal generation modes, which are referred to as mode one and mode two. The receiving UE needs to determine the mode in which the received signal is to be used. In the following description, the sildelink signal transmission is supported in two modes, for example, the mode one is CP-OFDM mode, and the mode two is DFT-S-OFDM mode.

When the UE transmits the Sidelink signal, any one or more of the following methods may be employed to determine the signal pattern of the used transmission signal:

1. determined by the Silelink resource pool configuration

2. Predefining/configuring Sidelink signal patterns

3. Configuring UE by network side

4. Selection of mode for transmitting Sidelink signal by UE

5. Determining one or more other associated Sidelink signal patterns from the reference Sidelink signal pattern

The UE determines the Sidelink signal transmission mode, wherein the UE determines the signal mode of any one or more of the following Sidelink signals: PSCCH signal pattern, PSBCH signal pattern, PSDCH signal pattern.

The PSCCH signal is a scell signal that carries SCI information and is sent on a PSCCH resource, and may be referred to as a PSCCH signal for short, and similarly, the scell data information is carried on a PSCCH resource, and may be referred to as a PSCCH signal for short, the signal that carries the scell broadcast information and is sent on a PSBCH resource is a PSBCH signal, and the signal that carries the scell discovery information and is sent on a PSDCH resource is a PSDCH signal.

Determining the mode in which the UE transmits the Sidelink signal includes determining the mode of any one or more of the above signals, and the transmission modes in which the same UE transmits different Sidelink signals may be the same or different. In the following, the PSCCH signal and the PSCCH signal are mainly taken as examples for explanation, and the determination method of the PSBCH and PSDCH signal patterns can be similarly used correspondingly.

Further, when the UE transmits the Sidelink signal, any one or more of the following methods may be adopted to indicate the used signal transmission mode to the receiving end:

1. indicating a corresponding Sidelink signal mode through high-level signaling;

2. indicating a corresponding PSSCH signal pattern in the SCI;

3. the corresponding sildelink signal pattern is implicitly indicated by the DMRS.

Preferred embodiment 2

When a sending end UE needs to send a Sidelink signal on a PSCCH resource or a PSSCH resource, a signal mode which is adopted by a sending signal needs to be determined firstly, and when a signal mode I is adopted to generate the sending signal, SCI and/or Sidelink data information to be sent is processed according to a CP-OFDM mode method to generate the signal to be sent, which specifically comprises the following steps: sub-carrier mapping, Inverse Discrete Fourier Transform (IDFT), Cyclic Prefix (CP), modulation to radio frequency (radio frequency); when the signal mode two is adopted to generate a transmission signal, processing information to be transmitted according to a method of a DFT-S-OFDM mode, specifically comprising the following steps: n-point Discrete Fourier Transform (DFT), subcarrier mapping, M-point Inverse Discrete Fourier Transform (IDFT), and Cyclic Prefix (CP) are added, and finally a signal is transmitted, as shown in fig. 7.

It can be seen that, for signals of different modes, the steps of generating signals by the sending-end UE are different, so when the UE transmits a signal, it first needs to determine a signal mode used for transmitting the signal, and further processes and transmits the to-be-transmitted Sidelink control and/or data information according to the determined signal mode.

When receiving the Sidelink signal, the UE needs to obtain a mode of the received Sidelink signal, and after obtaining the signal mode, processes the received signal according to the corresponding mode, and further obtains information carried in the signal.

When the Sidelink signal adopts different modes, the flow of receiving and processing the signal is different, and the case that the mode one is CP-OFDM and the mode two is DFT-S-OFDM is taken as an example for explanation.

The specific method for obtaining the signal mode of the received Sidelink signal comprises the following steps:

1. determining by the configuration of a Silelink resource pool;

2. predefining/configuring a Sidelink signal pattern;

3. blind detection is carried out to determine a Sidelink signal mode;

4. determining a Sidelink signal mode through a high-layer and/or physical layer signaling instruction indicated by a transmitting end;

5. another one or more associated sildelink signal patterns is determined from the reference sildelink signal pattern.

Preferred embodiment 3

When receiving end UE receives a certain Sidelink signal on PSCCH resource or PSCCH resource, first, it needs to obtain the signal mode of the signal, and when the received signal is a mode one signal, it processes the received signal according to the method of receiving CP-OFDM mode, specifically including performing the following steps: removing Cyclic Prefix (CP), M-point Discrete Fourier Transform (DFT), solving subcarrier mapping and information detection; when the received signal is a mode two signal, processing the received signal according to a method of receiving a DFT-S-OFDM mode, specifically including performing the following steps on the signal: cyclic Prefix (CP), M-point Discrete Fourier Transform (DFT), subcarrier mapping, Inverse N-point Discrete Fourier transform (IDFT), and information detection are performed, as shown in fig. 8.

It can be seen that, for signals with different modes, the processing steps of the receiving end UE are different, so that when the UE receives a signal, the UE needs to first obtain the signal mode of the signal when receiving the signal, and can process the received signal according to the corresponding receiving processing method.

The following describes the method for determining the transmission mode and reception mode of the Sidelink signal.

Method I, determining Sidelink signal mode by resource pool configuration

In the sildelink communication, physical resources available for transmitting a sildelink signal constitute a sildelink resource pool, such as a PSCCH resource pool or a PSCCH resource pool. The UE performing the Sidelink communication needs to obtain configuration information of the Sidelink resource pool, further transmit a Sidelink signal using a resource in the Sidelink resource pool, and receive the Sidelink signal from other UEs in the Sidelink resource pool. The configuration information of the sildelink resource pool may indicate the UE by network side configuration, or may be preconfigured by the system, and indicate a signal pattern of signals transmitted on the corresponding sildelink resource pool, including the PSCCH resource pool and/or the PSCCH resource pool. The UE receives configuration information from the network side, or the available Sidelink resource pool and the corresponding Sidelink signal mode are determined by system pre-configuration. The UE may simultaneously support configuration of multiple Sidelink resource pools, and transmit a Sidelink signal according to the configured signal mode using the resources therein, or receive the Sidelink signal from the multiple resource pools according to the configured signal mode.

When the sildenk signal transmission supports multiple modes, a corresponding signal mode may be configured for each sildenk resource pool, that is, when a resource in a certain sildenk resource pool is used to transmit a sildenk signal, a signal mode corresponding to the sildenk resource pool must be used, and the signal mode of each sildenk resource pool is unique, and accordingly, when the sildenk signal is received in the resource pool, the configured signal mode should be used for receiving processing. Here, the sildelink resource pool includes a PSCCH resource pool and/or a PSCCH resource pool, and the PSCCH resource pool may be configured to use the same or different signal patterns.

When the UE obtains the configuration information of the Sidelink resource pool, the configuration information includes a signal mode configuration corresponding to the Sidelink resource pool. Based on the sildenk resource pool configuration information, the UE may determine that, when the UE uses the resource in the resource pool to transmit a sildenk signal, the UE must use a signal mode configured for the resource pool; when the UE receives the signal in the resource pool, it may determine that the received signal is the configured signal pattern according to the configuration information, and further process the signal received in the resource pool according to the receiving method of the corresponding signal pattern.

In addition, the UE may select the Sidelink resource according to the signal mode configuration indicated in the Sidelink resource configuration. For example, if the UE only supports mode one mode to transmit the Sidelink signal, when the system is preconfigured with a plurality of Sidelink resource pools, and the corresponding signal modes of the resource pools are different, the UE may select to use the resource pool corresponding to the signal mode one, and select a resource from the selected resource pool to perform the Sidelink signal transmission. Or, for example, if the current cellular communication uplink signal of the UE is transmitted in mode two, the UE preferentially transmits the Sidelink signal in mode two, and the UE may select the resource pool configured in signal mode two according to the Sidelink resource pool configuration, and select the resource to transmit the Sidelink signal.

In addition, the method has the advantages that a fixed relation is established between the Sidelink signal mode and the configuration of the Sidelink resource pool, so that the UE determines the corresponding signal mode by obtaining the configuration information of the Sidelink resource pool, mode blind detection is avoided when the UE receives the Sidelink signal, the complexity of the UE is reduced, the power consumption of the UE is reduced, and the like.

Preferred embodiment 4

The UE obtains, from the network side, the sildelink resource pool configuration information, which includes the configuration of multiple PSCCH resource pools, specifically, the resources included in each PSCCH resource pool, and the corresponding signal patterns. According to the configuration information, the configuration indication of the Silelink resource pool is as follows: PSCCH resource pools #1, #2 use mode one; PSCCH resource pools #3, #4 use pattern two.

And the UE selects a PSCCH resource from the PSCCH resource pool #1 to send the SCI, and generates a signal according to the SCI information to be sent in a mode one according to the indication in the resource pool configuration information, and the signal is borne on the PSCCH resource in the PSCCH resource pool #1 to be sent.

The UE receives signals in PSCCH resource pools #2, #3, #4, and then, according to the indication in the resource pool configuration information, the UE processes the received signals in a mode one manner when blindly detecting SCI information in PSCCH resource pool #2, and processes the received signals in a mode two manner when blindly detecting SCI information in PSCCH resource pools #3, #4, and the specific method for processing the signals in mode one and mode two by the UE is as described in example one. Further, the UE parses the SCI from the received signal, as shown in fig. 9.

Method two predefining/configuring the Sidelink signal pattern

In the sildelink communication, a signal pattern of the sildelink, including any one or more transmission patterns of the sildelink signal, such as a PSCCH signal pattern, and a PSBCH signal pattern, may be configured by the network side or predefined by the system.

When the UE transmits and receives the sildelink signal, the UE transmits or receives signals on the sildelink resource according to a signal pattern configured on the network side or a signal pattern predefined by the system, where the signals include PSCCH signals and/or PSBCH signals. The network side can indicate a Sidelink PSCCH signal pattern and/or a PSSCH signal pattern and/or a PSBCH signal pattern through high-layer signaling configuration, or the system predefines the PSCCH signal pattern and/or the PSSCH signal pattern and/or the PSBCH signal pattern. In the second method, the sildelink signal pattern configured in common on the network side or predefined by the system is configured in common, that is, all UEs in the same cell or the same sildelink communication group use the same configuration.

Further, the transmitting-end UE transmits the PSCCH signal and/or the PSBCH signal pattern using the indicated signal pattern according to the configuration. Correspondingly, the receiving end UE receives the PSCCH signal and/or the pscsch signal and/or the PSBCH signal on the corresponding resource according to the signal mode indicated by the configuration.

Preferred embodiment 5

The UE receives common configuration information of the network side, wherein configuration related to the Sidelink is indicated, and the configuration comprises a Sidelink control channel using mode I used for carrying SCI information and transmitted on PSCCH resources. In addition, the signal pattern used for the Sidelink data channel is indicated in the SCI information, for example, 1-bit signal pattern indication information is set in the SCI to indicate that the signal pattern for transmitting signals on the psch resource corresponding to the SCI is pattern one or pattern two.

According to the configuration of the network side, when the UE transmits signals on the Sidelink resource, the UE generates signals carrying SCI in a mode one and transmits the signals on the PSCCH resource. And the PSSCH signal pattern is autonomously determined by the UE, the UE selects a pattern which uses the same signal pattern as the PSCCH to transmit the PSSCH signal, and indicates a pattern I in the SCI signal that the signal of the Sidelink data information is transmitted on the corresponding PSSCH resource. The UE transmits SCI information on PSCCH resources using mode one and sildelink data information on corresponding PSCCH resources in mode one, as shown in fig. 10.

According to the configuration of the network side, when the UE detects and receives the SCI in the PSCCH resource pool, the UE detects the signal on the PSCCH resource in a mode one and analyzes the signal to obtain the SCI information. Further, the UE determines a mode for receiving the corresponding PSSCH signal according to the obtained signal mode indication information of the PSSCH signal mode in the SCI. If the signal mode indication information indicates that the Sidelink data signal transmitted on the corresponding pscch resource uses the mode one, the UE receives the signal on the corresponding pscch resource in the mode one receiving processing manner, and obtains the corresponding Sidelink data information, as shown in fig. 10.

Method for configuring UE Sidelink signal transmission mode at three network sides

In the Sidelink communication, the network side may configure the Sidelink signal mode for the UE through UE-specific higher layer signaling or physical layer signaling.

The network side configures the Sidelink signal mode for the UE through the dedicated signaling, which is different from the configuration in the second method, because the configuration signaling is independently issued to each UE, that is, the signal modes of a plurality of Sidelink UEs can be set to be the same mode or different modes, and the configuration signaling in the second method is the common configuration signaling, that is, all the UEs adopt the uniform Sidelink signal mode. In the third method, each UE is independently configured to facilitate flexible configuration effect of the Sidelink communication, and the method is suitable for the Sidelink UEs with different services, capabilities and requirements.

In the Sidelink signal mode configured for the UE by the network side, any one of the following configuration modes may be included: only configuring a PSCCH signal mode; only PSSCH signal patterns are configured; and configuring PSCCH and PSSCH signal patterns.

In addition, the network side can configure the UE to transmit PSCCH and PSCCH signals in a uniform signal mode, and then the network side only notifies one signal mode in the indication signaling of the UE, that is, the function of indicating the PSCCH and PSCCH signal modes is achieved. Or, the network side configures the UE to transmit PSCCH and PSCCH signals in different signal modes, so that the network side indicates the UE to notify the PSCCH and/or PSCCH signal modes, and the UE can determine the signal modes that are not explicitly configured by the network side.

Alternatively, the network side may instruct the UE through higher layer signaling configuration, and the signal mode for transmitting the signal in the Sidelink and the uplink signal transmission of the UE in the cellular communication use the same signal mode. The network side does not need to explicitly indicate the sildelink signal pattern for the UE any more. The UE generates and transmits a Sidelink signal using, as the Sidelink signal pattern, a signal pattern for transmitting an uplink signal to the network side according to the configuration.

Preferred embodiment 6

The UE receives configuration signaling of a network side, wherein configuration related to the Sidelink is indicated, and the configuration includes that a Sidelink control channel uses a first mode for carrying SCI information to be sent on PSCCH resources, and uses a second mode for sending PSSCH signals.

And the sending end UE respectively uses the mode I and the mode II to send the PSCCH signal and the PSSCH signal on the configured Sidelink resource according to the configuration of the network side.

The method can realize the flexible configuration of the network side for the Sidelink UE to send the Sidelink signal, and achieve the effects of flexibly coordinating the signal modes of the UE, reducing the receiving complexity, meeting the capability requirement of the UE and the like.

Method for selecting Sidelink signal transmission mode by four UEs

In Sidelink communications, a UE may autonomously select to determine a Sidelink signal pattern, including selecting a PSCCH signal pattern and/or a PSCCH signal pattern. The UE may choose to use the same or different signal patterns for the PSCCH signal and the PSCCH signal. Further, the UE transmits the PSCCH signal and/or the PSCCH signal using the selected signal pattern.

Preferred embodiment 7

The UE obtains the configuration of the Silelink resource pool from the network side, wherein the configuration information of the resources in the resource pool is contained, but the network side does not configure the Silelink signal mode or can support both the Silelink signal mode and the configuration, and then the UE can freely select the Silelink signal mode.

Or, the network side configures the UE through signaling, and the UE determines the signal mode for transmitting the signal in the Sidelink by itself, so that the UE can arbitrarily select one mode from the signal modes supported by the Sidelink for transmitting the PSCCH signal and/or the PSCCH signal according to the indication of the network side.

Or, the UE performs the Sidelink communication on the dedicated carrier for D2D communication or V2X communication, and does not receive the configuration indication information on the network side, the UE needs to autonomously determine the Sidelink signal mode for transmitting the Sidelink signal.

When the UE autonomously determines the Sidelink signal mode, the UE may randomly select one of all available signal modes as the Sidelink signal transmission mode, or the UE may select the signal mode determined to transmit the signal at the Sidelink channel according to the UE's own capability, service requirement, scene requirement, cellular communication uplink signal mode, the result of monitoring the Sidelink channel, the result of measuring the Sidelink channel, and other factors.

And when the UE only supports generating signals in a mode one according to the capability of the UE, the UE determines that the Sidelink signal mode is the mode one. Further, the UE transmits SCI on PSCCH resources using pattern one to generate a Sidelink signal. In addition, if the mode of the UE indicating the signal for transmitting the Sidelink data information on the corresponding psch resource in the SCI signal is mode one, the UE transmits the Sidelink data information on the indicated psch resource in mode one.

Method five determines the associated Sidelink signal pattern from the reference Sidelink signal pattern

In the Sidelink communication, a network side configuration or a system predefinition may determine that a certain Sidelink signal is a reference signal, and one or more other Sidelink signals are related associated Sidelink signals. And further defines the signal pattern of the corresponding associated sildelink signal as determined by the signal pattern of the reference sildelink signal, e.g., defines the associated sildelink signal pattern to be the same as the reference sildelink signal pattern.

Specifically, the relationship between the reference sildelink signal and the associated sildelink signal includes, but is not limited to:

the PSDCH signal is a reference signal, and the PSCCH signal and the PSSCH signal are associated signals.

Alternatively, the network side configuration or system predefines a correspondence between the reference sildenk signal pattern and the associated sildenk signal pattern, for example as shown in table 1.

TABLE 1

In addition, when the PSDCH signal or the PSBCH signal is used as the reference Sidelink signal, the signal pattern of the reference Sidelink signal may be defined as the signal pattern of other Sidelink signals in the corresponding Sidelink resource pool.

Preferred embodiment 8

The UE obtains configuration indication from a network side, the reference Sidelink signal is a PSBCH signal, the PSCCH signal is a corresponding associated signal, and the associated signal is configured to adopt the same signal mode as the reference signal.

And the UE monitors and receives the PSBCH signal in the resource pool according to the configuration indication, judges and acquires the signal mode of the reference signal as a mode one, and then the UE sends the PSCCH signal in the mode.

Or, the network side configures a PSBCH as a reference signal, defines other Sidelink signals as associated Sidelink signals, and adopts the same signal mode as the reference signal.

And the UE judges that the mode of the reference signal is mode two after receiving the PSBCH signal on the PSBCH resource according to the configuration indication, and correspondingly, the UE transmits other signals in the Sidelink by adopting the mode two.

Preferred embodiment 9

And (3) network side configuration, or the system predefines that a corresponding PSSCH signal pattern is determined according to the PSSCH signal pattern, wherein the specific rule is that the PSSCH signal pattern is the same as the corresponding PSSCH signal pattern.

The UE, upon receiving the PSCCH signal, may determine that the pattern of the corresponding PSCCH signal is the same as the PSCCH signal pattern. When the UE receives the PSSCH signal, the signal mode of the corresponding PSCCH signal is directly used for receiving and processing the PSSCH signal, and blind detection receiving and judgment on the PSSCH signal mode are not needed.

Here, the PSCCH signal and the corresponding PSCCH signal refer to that SCI information carried in the PSCCH signal indicates a PSCCH channel resource and corresponding control information, such as MCS, and the PSCCH signal carried on the PSCCH resource indicated by the SCI may be referred to as a PSCCH signal corresponding to the PSCCH signal.

According to the configuration of the network side, the reference Sidelink signal is a PSCCH signal, the corresponding associated Sidelink signal is a PSSCH signal, and the associated signal adopts the same signal mode as the reference signal.

According to the configuration, the receiving end UE detects and receives the PSCCH signal in the PSCCH resource pool, the signal mode of the PSCCH is determined to be mode two through blind detection of the DMRS, and correspondingly, the UE can determine that the signal mode of the corresponding PSSCH signal is also the mode two. Further, the UE processes the psch signal in mode two reception on the psch resource indicated by the SCI, and parses it to obtain the Sidelink data information, as shown in fig. 11.

Method six-sending end indicates used Sidelink signal mode

The signal mode used by the sending end for sending the Sidelink signal can be notified to the receiving end through a direct indication mode or an indirect indication mode, so that the receiving end obtains the signal mode of the corresponding signal, thereby achieving the effects of avoiding blind detection of the receiving end and reducing the processing complexity of the receiving end.

The sending end UE indicates the corresponding signal mode to the receiving end by using a direct indication method or an indirect indication method, which may be configured by the network side or predefined by the system. And the UE at the sending end adopts a direct indication method or an indirect indication method to indicate the used Sidelink signal mode according to configuration or predefinition.

The method for directly indicating comprises the step that the sending end UE indicates a signal mode used by the sending end UE for sending the Sidelink signal to the receiving end through high-level signaling and/or physical layer signaling. The high-level signaling may be RRC signaling sent by the sending end UE to the receiving end UE, or broadcast information of the sending end UE, and there is no specific receiving target UE. The physical layer signaling is SCI, for example, a signal pattern indication field is set in the SCI to indicate the signal pattern of the pscch signal to the receiving end.

The indirect indication method includes that the Signal mode adopted by the Sidelink data channel can be implicitly indicated by a corresponding Demodulation Reference Signal (DMRS). In the transmission of the PSBCH signal, the PSCCH signal, and the PSDCH signal, the corresponding DMRS are carried, and the signal mode of the corresponding signal may be indirectly indicated by using different sequences or different cyclic shifts for the corresponding DMRS.

For example, the DMRS in the PSCCH signal may indirectly indicate the signal pattern of this PSCCH signal and/or the corresponding PSCCH signal, or the DMRS in the PSCCH signal indirectly indicate the signal pattern of this PSCCH signal.

An example of indirectly indicating the sildelink signal pattern by different DMRS sequences or cyclic shifts is shown in table 2, and is predefined by a network side configuration or a system, where the signal patterns correspondingly indicated by different DMRS sequences or cyclic shifts are:

TABLE 2

And the sending end UE generates and sends the DMRS carried in the PSCCH signal by using the corresponding DMRS sequence or the cyclic shift according to the configuration or the predefinition of the DMRS sequence or the cyclic shift in the table 2, thereby achieving the effect of indirectly indicating the PSSCH signal mode.

Preferred embodiment 10

And the sending end UE sends the PSCCH signal and the PSSCH signal by using the first mode according to the configuration indication of the network side.

When the system predefines the signal mode prompted by the sending end UE by a direct indication method, the sending end UE indicates a bit in a 1-bit signal mode in the SCI and indicates the signal mode used by the PSSCH signal to the receiving end UE, wherein the indication bit is '1' to indicate that the mode one is adopted, and the bit is '0' to indicate that the mode two is adopted. After receiving the SCI information, the receiving end may obtain the indication information from the corresponding mode indication field, determine the corresponding psch signal mode, and receive the psch signal in the indicated mode on the corresponding psch resource according to the indication.

When the system predefines that the sending end UE indicates the signal mode by an indirect indication method, the sending end UE implicitly indicates that the PSCCH signal is sent in the first mode by using one of the DMRS sequence N1, the sequence N2. Further, it is also implicitly indicated that the corresponding pscch signal is also transmitted with mode one. When receiving the PSCCH signal, the receiving end can determine the corresponding signal mode by detecting the DMRS sequence and combining with table 2.

Method for determining Sidelink signal mode by seven receiving end UE through detecting DMRS

And the receiving end UE determines the Sidelink signal mode on the Sidelink resource through blind detection of the DMRS, wherein the Sidelink signal mode comprises a PSCCH signal mode and/or a PSSCH signal mode.

The receiving end UE may determine a corresponding Signal pattern by detecting a Demodulation Reference Signal (DMRS) in a PSCCH Signal or a PSCCH Signal, and specifically, the method for determining the corresponding Signal pattern by detecting the DMRS includes: determining a signal mode by blind detection of a DMRS sequence; and determining a signal mode by blind detection of DMRS cyclic shift.

Wherein, the network side configures or predefines to use different DMRS sequences for different signal modes, or different DMRS cyclic shifts, and the UE obtains a DMRS sequence list available when generating signals in different Sidelink signal modes, or a corresponding DMRS cyclic shift list according to the configuration or the predefinition, as shown in table 2. The receiving end UE may determine the signal mode of the current signal by receiving the DMRS sequence or the cyclic shift in the detection signal when receiving the Sidelink signal.

Preferred embodiment 11

The UE obtains a corresponding relationship between the Sidelink signal pattern and the corresponding DMRS sequence list according to system predefinition, for example, as shown in table 2. When the UE receives the signal in the Sidelink, the UE determines a corresponding signal mode by detecting the DMRS sequence in the signal by using a blind detection receiving method, and further receives and processes the corresponding signal according to the determined signal mode.

According to table 2, when the UE detects a received SCI in the PSCCH resource pool, the DMRS sequence is detected from the PSCCH resource pool according to the PSCCH channel structure, and the detected DMRS sequence is compared with the sequence list in table 2, and when the detected DMRS sequence is a DMRS sequence corresponding to the pattern one, the currently received PSCCH signal is determined to be a pattern one signal. Further, the UE receives and processes the signal on the PSCCH resource in a mode one, and analyzes the signal to obtain SCI information; and when the detected DMRS sequence is the DMRS sequence corresponding to the mode two, determining that the currently received PSCCH signal is the mode two signal. Further, the UE processes the signal on the PSCCH resource in mode two reception and parses the SCI information therefrom, as shown in fig. 12.

Or, when the system predefines the signal patterns of the PSCCH signal and the corresponding PSCCH signal implicitly indicated by the DMRS in the PSCCH signal, the receiving end UE may determine the pattern of the PSCCH signal and the pattern of the PSCCH signal indicated by the SCI information by detecting and judging the signal pattern indicated by the DMRS in the PSCCH signal.

Method eight receiving end UE determines Sidelink signal mode according to SCI indication

When receiving the Sidelink signal, the UE receives and analyzes the PSCCH signal to obtain SCI information, and then receives the PSCCH signal according to the PSCCH resource indicated by the SCI. Therefore, in addition to the method for determining the PSCCH signal pattern through blind detection of the DMRS as described in the sixth method, the method for determining the PSCCH signal pattern by the receiving end UE may also determine the signal pattern of the corresponding PSCCH signal through an SCI indication in the received PSCCH signal.

After detecting the received PSCCH signal, the UE analyzes and obtains SCI indication information which comprises an indication of a signal mode of the corresponding PSSCH signal. The UE may perform receiving processing on the psch signal according to the indicated pattern on the corresponding psch resource according to the indication of the SCI, and further obtain the Sidelink data information on the psch resource.

Preferred embodiment 12

The system predefines the PSCCH signal pattern to fixedly adopt pattern one, and the signal pattern of the corresponding PSCCH signal is indicated in the corresponding SCI by the transmitting UE.

And the receiving end UE detects and receives the PSCCH signal in the PSCCH resource pool according to a fixed mode I, and obtains an SCI indication from the PSCCH signal pool, wherein the corresponding PSSCH signal mode is indicated to be a mode II. Further, the UE receives and processes the PSSCH signal according to the indicated pattern two on the indicated PSSCH resource according to the indication of the SCI, and obtains the Sidelink data information from the PSSCH signal by parsing, as shown in fig. 13.

Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:

s1, the transmitting end determines a signal mode for transmitting a Sidelink signal on the Sidelink, where the Sidelink signal includes any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

s2, the transmitting end transmits the Sidelink signal on the side link using the determined signal pattern.

Optionally, the storage medium is further arranged to store a computer program for performing the steps of:

s3, the transmitting end determines a signal mode for transmitting the Sidelink signal on the side link, where the signal mode includes at least one of: the sending end determines a signal mode according to the configuration information of the side link resource pool; the sending end determines a signal mode according to system predefinition; the sending end determines a signal mode according to the configuration indication of the network side; the sending end selects and determines a signal mode; the method comprises the steps that a sending end determines a signal mode of an associated signal according to a corresponding relation between the signal mode of a reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more of the Sidelink signals, and the associated signal is any one or more of the Sidelink signals;

s4, the sending end determines the signal mode according to the configuration information of the side link resource pool, including: the configuration information of the side link resource pool comprises an indication of a signal mode, and the sending end determines the configured signal mode according to the configuration information of the side link resource pool;

s5, the sending end determines the signal mode according to the configuration indication of the network side, including: the sending end determines the signal mode according to the high-level signaling and/or the physical layer signaling of the network side

S6, the transmitting end selects and determines a signal mode, including: a sending end randomly selects and determines a signal mode from available signal modes; or, the sending end selects and determines a signal mode according to a predefined rule;

s7, the sending terminal selects and determines the signal mode according to the predefined rule, and the sending terminal determines the signal mode according to any one or more of the following factors: the device capability of the sending end, the service requirement, the cellular communication uplink signal mode, the monitoring result of the sending end to the side link, and the measuring result of the sending end to the side link.

Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.

Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining a signal pattern, comprising:

the method comprises the steps that a sending end determines a signal mode for sending a Sidelink signal on a side link Sidelink, wherein the Sidelink signal comprises any one or more of the following: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

the sending end sends the Sidelink signal on the side link by using the determined signal mode; wherein the signal pattern comprises: a cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode, an orthogonal frequency division multiplexing DFT-S-OFDM mode based on discrete Fourier transform; the sending end determines a signal mode for sending the Sidelink signal on the side link, and the signal mode at least comprises one of the following steps:

the sending end determines the signal mode according to the configuration information of the side link resource pool;

the sending end determines the signal mode according to system predefinition;

the sending end determines the signal mode according to the configuration indication of the network side;

the sending end selects and determines the signal mode;

the sending end determines the signal mode of the associated signal according to the corresponding relation between the signal mode of a reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more of the Sidelink signals, and the associated signal is any one or more of the Sidelink signals; the method for determining the signal mode by the sending end according to the configuration indication of the network side comprises the following steps: and the sending end determines the signal mode according to the high-level signaling and/or the physical layer signaling of the network side.

2. The method of claim 1, wherein the determining, by the sending end, the signal pattern according to configuration information of an edge link resource pool comprises:

the configuration information of the side link resource pool comprises an indication of the signal mode, and the sending end determines the configured signal mode according to the configuration information of the side link resource pool.

3. The method of claim 1, wherein the transmitting end selects to determine the signal pattern, comprising:

the transmitting end randomly selects and determines the signal mode from available signal modes;

or, the sending end selects and determines the signal mode according to a predefined rule.

4. The method of claim 3, wherein the sender selects and determines the signal pattern according to a predefined rule, and wherein the sender determines the signal pattern according to any one or more of the following factors:

the device capability, the service requirement and the cellular communication uplink signal mode of the sending end, the monitoring result of the sending end to the side link and the measuring result of the sending end to the side link.

5. The method of claim 1, wherein determining the signal pattern of the associated signal according to the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal comprises:

the sending end determines a signal mode of the associated signal corresponding to the reference signal according to the signal mode of the reference signal, wherein a unique corresponding relation exists between the signal mode of the reference signal and the signal mode of the associated signal;

6. The method of claim 5, wherein the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal comprises any one or more of:

7. The method of claim 1, wherein determining the signal mode of the Sidelink signal by a transmitting end comprises:

when the sending end determines the signal modes of the plurality of Sidelink signals, the signal modes determined by the sending end for the plurality of Sidelink signals are different.

8. The method of claim 1, wherein the indicating, by the transmitting end, the signal mode to be used after the transmitting end determines the signal mode comprises at least one of:

9. The method of claim 8, wherein the higher layer signaling comprises: wireless connection control signaling, or side link broadcast messages; the physical layer signaling comprises: side link control information.

10. The method of claim 8, wherein the transmitting end implicitly indicating the signal mode adopted by the transmitting end through a demodulation reference signal comprises:

11. A method for obtaining a signal pattern, comprising:

the receiving end receives the Sidelink signal on the side link according to the obtained signal mode; the signal patterns include: a cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode, an orthogonal frequency division multiplexing DFT-S-OFDM mode based on discrete Fourier transform; the receiving end obtains the signal mode of the Sidelink signal, and the signal mode at least comprises one of the following modes:

the receiving end obtains the signal mode according to system predefinition;

the receiving end obtains the signal mode according to detection;

the receiving end obtains the signal mode of the associated signal according to the corresponding relation between the signal mode of the reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more of the Sidelink signals, and the associated signal is any one or more of the Sidelink signals; the receiving end obtains the signal mode according to the configuration indication of the network side, and the method comprises the following steps: and the receiving end obtains the signal mode according to the high-level signaling and/or the physical layer signaling indication of the network side.

12. The method of claim 11, wherein the obtaining, by the receiving end, the signal pattern according to configuration information of an edge link resource pool comprises:

13. The method of claim 11, wherein the obtaining, by the receiving end, the signal pattern according to the indication of the transmitting end comprises:

14. The method of claim 11, wherein the receiving end obtains the signal pattern according to detection, comprising:

15. The method of claim 11, wherein obtaining the signal pattern of the associated signal according to the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal comprises:

16. The method of claim 15, wherein the correspondence between the signal pattern of the reference signal and the signal pattern of the associated signal comprises any one or more of:

17. An apparatus for determining a signal pattern, comprising:

a determining module, configured to determine a signal mode for transmitting a Sidelink signal on a Sidelink, where the Sidelink signal includes any one or more of: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

a transmitting module, configured to transmit the Sidelink signal on the side link using the determined signal pattern; wherein the signal pattern comprises: a cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode, an orthogonal frequency division multiplexing DFT-S-OFDM mode based on discrete Fourier transform; the determining module is configured to determine a signal mode for transmitting the Sidelink signal on the side link, where the determining module at least includes one of:

determining the signal pattern according to a system predefinition;

selecting and determining the signal mode;

determining a signal mode of an associated signal according to a corresponding relation between the signal mode of a reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more than one of the Sidelink signals, and the associated signal is any one or more than one of the Sidelink signals; the determining module is further configured to determine the signal mode according to a configuration indication of a network side:

18. The apparatus of claim 17, wherein the determining module is configured to determine the configured signal pattern according to configuration information of the sidelink resource pool:

19. The apparatus of claim 17, wherein the determining module is further configured to determine the signal pattern according to a configuration indication of a network side:

20. An apparatus for obtaining a signal pattern, comprising:

an obtaining module, configured to obtain a signal pattern of a Sidelink signal on a Sidelink; wherein the Sidelink signal comprises any one or more of: a physical side link control channel PSCCH signal, a physical side link shared channel PSSCH signal, a physical side link discovery channel PSDCH signal and a physical side link broadcast channel PSBCH signal;

a receiving module, configured to receive the Sidelink signal according to the acquired signal mode on the side link; wherein the signal pattern comprises: a cyclic prefix orthogonal frequency division multiplexing CP-OFDM mode, an orthogonal frequency division multiplexing DFT-S-OFDM mode based on discrete Fourier transform; the obtaining module is configured to obtain a signal pattern of the Sidelink signal, where the obtaining module at least includes one of:

obtaining the signal pattern according to system predefinition;

obtaining the signal mode according to the instruction of the sending end;

obtaining the signal pattern according to the detection;

obtaining a signal mode of an associated signal according to a corresponding relation between the signal mode of a reference signal and the signal mode of the associated signal, wherein the reference signal is any one or more of the Sidelink signals, and the associated signal is any one or more of the Sidelink signals; the obtaining module is further configured to obtain the signal mode according to a configuration indication of a network side:

21. The apparatus of claim 20, wherein the obtaining module is configured to obtain the signal pattern according to configuration information of an edge link resource pool:

22. A storage medium having a computer program stored thereon, wherein the computer program is arranged to perform the method of any of claims 1 to 10, or 11 to 16 when executed.

23. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1-10, or 11 to 16.