METHOD AND DEVICE FOR SIDE LINK COMMUNICATION

Abstract

This description relates to methods and devices for sidelink communication between communication terminals in a wireless communication network. In one embodiment, the method may include receiving discontinuous receive configuration information. The method may further include determining a discontinuous receive configuration scheme for sidelink communication between the first user device and a second user device based on the discontinuous receive configuration information. The method may further include performing discontinuous sidelink reception of the sidelink communication in accordance with the discontinuous receive configuration scheme.

Description

METHOD AND DEVICE FOR SIDE LINK COMMUNICATION MA / a / ZUZZ / UU l Z40 Field of Invention This description is directed generally to wireless communications and, in particular, to side-link communication between communication terminals, including vehicles. Background of the Invention A sidelink is a one-way wireless communication service, meaning communication between communication terminals. A vehicle network refers to a large-scale system for wireless communication and information exchange between vehicles, pedestrians, road equipment, and the internet, according to agreed-upon communication protocols and data exchange standards. Vehicle network communications enable drivers to improve safety, traffic efficiency, and access information for convenience or entertainment. Vehicle network communication can be classified into three types according to the objects of wireless communication: vehicle-to-vehicle (V2V) communication; vehicle-to-infrastructure / vehicle-to-road equipment / network infrastructure communication; and vehicle-to-infrastructure / vehicle-to-vehicle communication. Ref. 335018 MA / a / ZUZZ / UU / network (V2I / V2N); and vehicle-to-pedestrian communication (V2P). These types of communication are collectively called vehicle-to-everything (V2X) communication. In the Third Generation Partnership Project (3GPP) research on V2X communication, the user equipment sidelink-based V2X communication method is one way to implement the V2X standard, in which traffic data is transmitted directly from a source user equipment to a destination user equipment through an air interface without being forwarded by the base station and core network, as shown in Figure 1. This V2X communication is called PC5-based V2X communication or V2X sidelink communication. With technological advancements and the development of the automation industry, V2X communication scenarios are becoming increasingly diverse and demanding higher performance. Advanced V2X services include vehicle-based communication, extended sensor integration, advanced driving (both semi-automated and fully automated), and remote driving. Desired performance requirements may include: support for data packets ranging in size from 50 to 12,000 bytes, transmission rates of 2 to 50 messages per second, maximum end-to-end latency of 3 to 500 milliseconds, reliability of 90% to 99.999%, data rates of 0.5 to 1000 Mbps, and transmission ranges of 50 to 1000 meters. Summary of the Invention This description is directed to methods, systems, and devices related to wireless communication, and more specifically, to sidelink communication between communication terminals to save the energy of the communication terminals. In one embodiment, a method is described that is performed by a first user device in a wireless communication network. The method may include receiving discontinuous receive configuration information. The method may further include determining a discontinuous receive configuration scheme for a sidelink communication between the first user device and a second user device based on the discontinuous receive configuration information. The method may further include performing discontinuous sidelink reception of the sidelink communication in accordance with the discontinuous receive configuration scheme. In one embodiment, a method is described that is performed by a first user device in a wireless communication network. The method may include receiving a discontinuous sidelink receive configuration scheme from a second user device. The method may further include reselecting a transmit resource for sidelink communication with the second user device based on the discontinuous sidelink receive configuration scheme. In one embodiment, a method is described that is performed by a first user device in a wireless communication network. The method may include receiving a sidelink discontinuous receive configuration scheme from a second user device. The method may further include determining sidelink discontinuous receive configuration setting information based on the sidelink discontinuous receive configuration scheme. The method may further include transmitting the sidelink discontinuous receive configuration setting information to the second user device. In another configuration, a wireless communication device may include a memory that stores instructions and a processing circuit that communicates with the memory. When the processing circuit executes the instructions, it is configured to perform the methods described above. ML / a / ZUZZ / UU l Z40 In another form, a computer-readable medium comprising instructions that, when executed by a computer, cause it to carry out the above methods. The above aspects and others, as well as their implementations, are described in more detail in the following figures, descriptions and claims. Brief Description of the Figures Figure 1 illustrates an example diagram of a wireless communication network according to various modes. Figure 2 illustrates a flowchart of a side-link communication method according to a modality. Figure 3 illustrates a flowchart of a side-link communication method according to another modality. Figure 4 illustrates a flowchart of a side-link communication method according to another modality. Detailed Description of the Invention The technology and examples of implementations and / or modalities described here can be used to improve the performance of wireless communication systems. The term "example" is used to mean MA / a / ZUZZ / UU l Z40 ML / a / ZUZZ / UU / An example of and, unless otherwise stated, does not imply an ideal or preferred example, implementation, or embodiment. The section headings are used in this description for ease of understanding and do not limit the technology described in the sections solely to the corresponding section. However, it should be noted that implementations can be embodied in a variety of different ways, and the subject matter covered or claimed is therefore intended to be interpreted as not limited to any of the embodiments set forth below. It should also be noted that implementations can be embodied as methods, devices, components, or systems. Accordingly, the embodiments in this description may, for example, take the form of hardware, software, firmware, or any combination thereof. A wireless access network provides network connectivity between a user equipment (UE) and an information or data network, such as a text, voice, or video communication network, the Internet, and similar networks. An example of a wireless access network might be based on cellular technologies, which could be further based on, for example, 4G LTE or 5G NR technologies and / or formats. Figure 1 shows an example system diagram of wireless communication network 100, which includes user equipment 102, 124, and 126, as well as a wireless access network node (WANN) 104, according to various configurations.User Equipment (UEs) 102, 124, and 126 may include, but are not limited to, a mobile phone, smartphone, tablet, laptop computer, in-vehicle communication equipment, roadside communication equipment, smart electronic device, or household appliance, including an air conditioner, television, refrigerator, oven, or other devices capable of communicating wirelessly over a network. UEs can communicate directly with each other via side links. For example, user equipment 102 may include transceiver circuitry 106 coupled to an antenna 108 to establish wireless communication with the wireless access network node 104. The transceiver circuitry 106 may also be coupled to a processor 110, which in turn may be coupled to memory 112 or other storage devices.Memory 112 can store instructions or codes that, when read and executed by processor 110, cause processor 110 to implement several of the methods described in this document. Similarly, the 104 wireless access network node may comprise a base station or other ML / a / ZUZZ / UU Wireless network access points capable of communicating wirelessly across a network with one or more UEs. For example, wireless access network node 104 might comprise a 4G LTE base station, a 5G NR base station, a 5G central unit base station, or a 5G distributed unit base station. Each type of these wireless access network nodes can be configured to perform a corresponding set of wireless networking functions. The set of wireless networking functions among different types of wireless access network nodes may not be identical. However, the set of wireless networking functions among different types of wireless access network nodes may functionally overlap.The wireless access network node 104 may include transceiver circuits 114 coupled to an antenna 116, which may include an antenna tower 118 in various approaches, to effect wireless communication with user equipment 102, 124, and 126. The transceiver circuit 114 may also be coupled to one or more processors 120, which may also be coupled to a memory 122 or other storage devices. The memory 122 may store instructions or codes that, when read and executed by the processor 120, cause the processor 120 to implement various methods described herein. For simplicity and clarity, only one WANN and three UEs are shown in Wireless Communication Network 100. It will be appreciated that there can be one or more WANNs in the wireless communication network, and each WANN can serve one or more UEs. In addition to UEs and WANNs, Network 100 can also comprise any other network nodes with different functions, such as the network nodes in the core network of Wireless Communication Network 100. Furthermore, although the various modalities will be discussed in the context of the particular example Wireless Communication Network 100, the underlying principle applies to other applicable wireless communication networks. In sidelink communication, such as V2X communication between user equipment, user equipment needs to monitor sidelink signals across the entire sidelink receive range, resulting in high power consumption and low efficiency. One of the goals of this description is to reduce the power consumption of sidelink communication while still meeting time delay requirements. Figure 2 illustrates an exemplary implementation 200 for user equipment sidelink communication. User equipment 102 can receive discontinuous receive configuration information (DRX, MA / a / ZUZZ / UU l Z40 (210), determine a DRX configuration scheme for sidelink communication between user equipment 102 and user equipment 124 based on the DRX configuration information (220), and perform discontinuous sidelink reception of the sidelink communication in accordance with the DRX configuration scheme (230). The DRX configuration scheme may specify an enabled receive duration and / or an disabled receive duration. As such, UE 102 may monitor the physical sidelink control channel (PSCCH) to receive the sidelink communication only at the intersection of the time domain between the receive duration and a set of sidelink receive resources for the sidelink communication. Several detailed modalities will then be discussed with reference to Figures 1 and 2 to illustrate the technical solutions of the present description. First modality The UE 102 can receive DRX configuration information from a wireless access network node such as the WANN 104 (210). The DRX configuration information can include at least one set of DRX configuration parameters. A set of DRX configuration parameters can include, for example, a DRX cycle. ML / a / ZUZZ / UU / Z40 ML / a / ZUZZ / UU / side-link, a time duration, a power-on duration time pattern, a first inactive timer, and a second inactive timer. The power-on duration time pattern may include a slot bitmap indicating the power-on duration of the side-link DRX, which will be discussed in detail later. In some implementations, the DRX configuration information may also include association information between the DRX configuration parameter set and the corresponding sidelink resource set. Specifically, the DRX configuration parameter set can be used to configure the DRX configuration scheme to receive sidelink communication within the range of the corresponding resource group. Alternatively or additionally, DRX configuration information can also include association information between the DRX configuration parameter set and a traffic type in sidelink communication. The traffic type can be represented by a destination identifier, a destination identifier index, a destination UE identifier, or a destination UE identifier index. The destination identifier and destination identifier index can refer to a sidelink traffic type without differentiating the transmitting UEs. The destination UE identifier and destination UE identifier index can refer to a sidelink traffic type transmitted from a specific UE. Examples of various traffic types might include safe driving information, road traffic information, entertainment information, and the like. In some implementations, the side-link DRX configuration information may include a mapping between a quality of service requirement and a set of DRX configuration parameters, or an index of the DRX configuration parameter set. The quality of service requirement may include, for example, time delay, reliability, traffic priority, error rate, quality of service identifier, and quality of service flow identifier. Alternatively or additionally, the sidelink DRX configuration information may include a mapping between user equipment status information and the intermittent receive configuration parameter set, or an index of the intermittent receive configuration parameter set. The user equipment status information may indicate, for example, a pedestrian user equipment, a non-pedestrian user equipment, a user equipment with a power-saving requirement, a user equipment without a power-saving requirement, and a MA / a / ZUZZ / UU / 4^3 energy saving level. Alternatively, the quality of service requirement and user equipment status information can be paired into a single element. The sidelink DRX configuration information can include a mapping between the paired element and the intermittent receive configuration parameter set, or an index of the intermittent receive configuration parameter set. Alternatively or additionally, the sidelink DRX configuration information may include a mapping between a transmission mode and a discontinuous receive configuration parameter set, or an index of the discontinuous receive configuration parameter set. The transmission mode may include, for example, unicast, multicast, and broadcast. In some implementations, UE 102 can receive DRX configuration information by receiving sidelink resource pool information from WANN 104. The sidelink resource pool information may include a set of discontinuous receive configuration parameters associated with a sidelink resource pool indicated by the sidelink resource pool information. Within the DRX configuration information, the DRX configuration parameters may include a power-on time pattern. The power-on time pattern may include a slot bitmap indicating a sidelink DRX power-on duration corresponding to an entry in the associated sidelink resource pool. The DRX configuration parameters may also include a sidelink DRX cycle with a value of M.The value M can indicate that the side-link DRX cycle length is M a multiple of a cycle length of the associated side-link resource pool. Alternatively, the value M can indicate that the side-link DRX cycle length is M a multiple of a slot bitmap length of the associated side-link resource pool. UE 102 can receive sidelink DRX configuration information from WANN 104 via a dedicated Radio Resource Control (RRC) message. Alternatively, UE 102 can receive sidelink DRX configuration information from WANN 104 via a broadcast message. With reference again to Figure 2, after receiving the DRX configuration information from WANN 104 (210), UE 102 can determine the DRX configuration scheme for sidelink communication between UE 102 and UE 124 based on the information from ML / a / ZUZZ / UU l Z40 discontinuous receive configuration (220). For example, UE 102 can simply read the DRX configuration parameters from the DRX configuration information and apply the DRX configuration parameters to the DRX configuration scheme. In another example, UE 102 can select DRX configuration parameters from DRX configuration information based on the current state of UE 102 and / or the quality of service for traffic monitored by UE 102. Once the configuration scheme has been established With DRX sidelink, the UE 102 does not have to continuously monitor the PSCCH. Instead, the UE 102 only monitors the PSCCH for the duration of the receive. However, it can continue monitoring other physical layer channels at any time. Optionally, before receiving DRX configuration information from WANN 104, UE 102 can transmit capability information to WANN 104 indicating whether UE 102 supports discontinuous sidelink reception, user equipment status information, and / or a quality of service requirement. WANN 104 can then determine whether to configure or activate sidelink DRX for UE 102 based on the capability information indicating whether UE 102 supports discontinuous sidelink reception, user equipment status information, and / or a quality of service requirement. MA / a / ZUZZ / UU / user equipment, and / or a quality of service requirement. Alternatively or additionally, UE 102 can transmit Semi-Persistent Scheduling Wizard (SPS) information to WAN 104. The SPS wizard information can include, for example, the traffic characteristics of the sidelink logical channel(s) configured for sidelink communication and the estimated data arrival frequency on the sidelink logical channel(s). Based on this SPS wizard information, WAN 104 can then determine whether to configure or activate the sidelink DRX for UE 102. Optionally, after receiving DRX configuration information from WANN 104, UE 102 can transmit DRX configuration adjustment information to WANN 104. For example, the DRX configuration adjustment information might include an adjustment request. WANN 104 can then generate new DRX configuration information for UE 102 based on the adjustment request and transmit this new information to UE 104. Alternatively, the DRX configuration adjustment information might include DRX configuration information that has already been adjusted by UE 102. WANN 104 can then use this adjusted DRX configuration information to update the information. MA / a / ZUZZ / UU l Z40 ML / a / ZUZZ / UU / DRX configuration for UE 102 at the end of WANN 104. Optionally, before transmitting DRX configuration adjustment information to WANN 104, UE 102 may need to receive a configuration information message from WANN 104. This configuration information message may indicate whether a DRX configuration adjustment or a DRX configuration adjustment report is permitted. Thus, UE 102 can transmit DRX configuration adjustment information to WANN 104 only if WANN 104 permits either the DRX configuration adjustment or the DRX configuration adjustment report. Optionally, UE 102 can first transmit a DRX configuration request for sidelink DRX configuration information to WANN 104. WANN 104 can transmit the DRX configuration information to UE 102 only after receiving the DRX configuration request. Alternatively, UE 102 can transmit the DRX configuration request to WANN 104 only after receiving a DRX configuration request message indicating whether the DRX configuration request is permitted or whether a DRX configuration request report is allowed. For example, if WANN 104 allows the DRX configuration request or the DRX configuration request report, UE 102 can transmit the DRX configuration request. Otherwise, UE 102 can choose not to transmit the DRX configuration request to WANN 104. Second modality The UE 102 can receive DRX configuration information from another UE, such as the UE 124 (210). The DRX configuration information can include at least one set of DRX configuration parameters. A set of DRX configuration parameters can include, for example, a side-link DRX cycle, a time duration, an on-time pattern, a first inactive timer, and a second inactive timer. The UE 102 can receive DRX configuration information from the UE 124 via a unicast sidelink RRC message, a multicast sidelink RRC message, or a broadcast sidelink RRC message. In some implementations, DRX configuration information may also include association information between the DRX configuration parameter set and the corresponding side-link resource set. Specifically, the DRX configuration parameter set can be used to configure the MA / a / ZUZZ / UU l DRX configuration scheme to receive sidelink communication within the relevant resource group range. In some implementations, UE 102 can receive DRX configuration information by receiving sidelink resource pool information from UE 124. The sidelink resource pool information may include a set of discontinuous receive configuration parameters associated with a sidelink resource pool indicated by the sidelink resource pool information. In the DRX configuration information, the DRX configuration parameters may include a power-on time pattern. The power-on time pattern may include a slot bitmap indicating a sidelink DRX power-on duration corresponding to an entry in the associated sidelink resource pool. The DRX configuration parameters may also include a sidelink DRX cycle with a value of M.The value M can indicate that the side-link DRX cycle length is M a multiple of a cycle length in the associated side-link resource pool. Alternatively, the value M can indicate that the side-link DRX cycle length is M a multiple of a bitmap length in the associated side-link resource pool. Optionally, after receiving the sidelink DRX configuration information transmitted from UE 124, UE 102 can transmit the sidelink DRX configuration information to WANN 104. Alternatively or additionally, UE 102 can transmit both the sidelink DRX configuration information and an identifier for UE 124 to WANN 104. The identifier for UE 124 can be represented by a destination UE identifier, a destination UE identifier index, a destination identifier, or a destination identifier index. The WANN 104 can adjust the sidelink DRX configuration information and then transmit the adjusted sidelink DRX configuration information to the UE 102. Upon receiving the adjusted DRX configuration information from the WANN 104, the UE 102 can determine the DRX configuration scheme based on the adjusted discontinuous receive configuration information. Referring again to Figure 2, after receiving the DRX configuration information from UE 124 (210), UE 102 can determine the DRX configuration scheme for sidelink communication between UE 102 and UE 124 based on the information from ML / a / ZUZZ / UU Discontinuous receive configuration (220). For example, UE 102 can simply read the DRX configuration parameters from the DRX configuration information and apply the DRX configuration parameters to the DRX configuration scheme. In another example, UE 102 can select DRX configuration parameters from DRX configuration information based on the current state of UE 102 and / or a quality of service requirement for traffic monitored by UE 102. Once the DRX sidelink configuration scheme is established, the UE 102 does not need to continuously monitor the PSCCH. Instead, the UE 102 only needs to monitor the PSCCH for the duration of the receive. Third modality The UE 102 can receive initial DRX configuration information from the UE 124 and subsequent DRX configuration information from the UE 126 (210). Either the initial or subsequent DRX configuration information can include at least one set of DRX configuration parameters. A set of DRX configuration parameters can include, for example, a side-link DRX cycle, a time duration, an on-time pattern, a first inactive timer, and a second inactive timer. ML / a / ZUZZ / UU / After receiving initial DRX configuration information from UE 124 and subsequent DRX configuration information from UE 126, UE 102 can determine the DRX configuration scheme for sidelink communication between UE 102 and UE 124 based on the initial and subsequent DRX configuration information. For example, UE 102 can determine DRX configuration parameters that take into account the sets of DRX configuration parameters in the initial and subsequent DRX configuration information and apply these determined DRX configuration parameters to the DRX configuration scheme. Once the configuration scheme has been established With DRX sidelink, the UE 102 does not have to continuously monitor the PSCCH. Instead, the UE 102 only needs to monitor the PSCCH for the duration of the reception. Fourth modality As an example, this mode will discuss the ways in which a user computer can receive DRX configuration information from another user computer in different scenarios. Scenario 1: The UEs are in unicast sidelink communication In this scenario, communicating UEs, such as UE 102 and UE 124, can establish a sidelink RRC connection. The UEs can exchange their own The current DRX configuration scheme is transmitted via the PC5 RRC connection. This allows the transmitting UE to consider the receiving UE's sidelink DRX configuration scheme when selecting transmission resources. Furthermore, subframes between the UEs must be aligned after the DRX configuration schemes are exchanged. Scenario 2: The EUs are in multicast communication In this scenario, a transmitting user device may need to consider the DRX configuration schemes of all receiving user devices when selecting transmission resources. Therefore, all devices in the multicast communication may need to exchange their current DRX configuration schemes with each other. To accomplish this, multicast sidelink RRC connections can be established for exchange. Alternatively, DRX sidelink configuration schemes can be transmitted as multicast messages. Alternatively, UEs can separately establish unicast connections with each other for transmitting the DRX sidelink configuration. Alternatively, UEs can exchange their own DRX sidelink configuration schemes with each other via sidelink signaling, such as network protocol messages (NAS messages). Fifth modality As an example, in this mode we will analyze which device is suitable for configuring the DRX sidelink configuration parameters for a user device in different scenarios, the wireless access node that serves the user device or other user devices in sidelink communication with the user device. Scenario 1: The UE is in RRC connection with the wireless access node Regarding the UE, such as the UE 102 with connection RRC, it may be appropriate for WANN 104 to configure the sidelink DRX configuration parameters. As such, UE 102 can report to WANN 104 some wizard information regarding UE 102, such as capacity information indicating whether UE 102 supports discontinuous sidelink reception, UE status information, a quality of service requirement, and semi-persistent scheduling wizard information. Apart from capacity information and UE status information, WANN 104 may refer to the service characteristics of the data packet that UE 102 is interested in receiving from the transmitting UEs, MA / a / ZUZZ / UU l Z40 ML / a / ZUZZ / UU / as UE 124 and UE 126, via the side link. UE 102 can obtain information related to these service characteristics from the transmitting UEs. For example, when UE 102 establishes a unicast connection, the transmitting UE can transmit its own SPS attendant information to the receiving UE 102, which can then derive the data packet arrival time from the SPS attendant information. In another example, the transmitting UE can transmit its quality of service information, including the time delay requirement, to UE 102. In yet another example, the transmitting UE can transmit recommended DRX configuration information to UE 102 based on the service characteristics of the message to be transmitted.After receiving the above information related to the service characteristics of the transmitting UEs, UE 102 can transmit it to WANN 104, which then configures the DRX configuration parameters for UE 102 with reference to the information related to the service characteristics. Optionally, after UE 102 determines or updates its own DRX configuration scheme, it can transmit the updated DRX configuration scheme to the transmitting UEs. Alternatively, or additionally, when UE 102 has multiple independent sidelink DRX configuration schemes and is in unicast connection communication, the transmitting UE, such as UE 124 or UE 126, can configure the sidelink DRX configuration parameters for UE 102 based on the transmitting UE's service characteristics and time delay requirements. Upon receiving the sidelink DRX configuration parameters, UE 102 can directly apply them to its sidelink DRX configuration scheme. Alternatively, UE 102 can transmit the received sidelink DRX configuration parameters to WANN 104, and then WANN 104 can determine whether to modify UE 102's sidelink DRX configuration scheme. Scenario 2: The UE is in a resting state In this situation, the wireless access node, such as WANN 104, can only configure cell-specific DRX configuration parameters via a system message. Since certain UE 102-specific information, such as UE status and data packet characteristics, can affect the DRX configuration parameters for the UE, WANN 104 can broadcast the mappings between UE-specific information and DRX configuration parameters. UE 102 can then select the parameters. ML / a / ZUZZ / UU / Z40 DRX configurations corresponding to their own current state and the traffic that UE 102 is interested in monitoring. Alternatively, if UE 102 has multiple independent sidelink DRX configuration schemes and is in unicast connection communication, the transmitting UE, such as UE 124 or UE 126, can configure the sidelink DRX configuration parameters for UE 102 based on the transmitting UE's service characteristics and time-delay requirements. Upon receiving the sidelink DRX configuration parameters, UE 102 can apply them directly to its sidelink DRX configuration scheme. Alternatively, UE 102 can determine whether to modify the received sidelink DRX configuration parameters based on its own power-saving options and transmit the modified sidelink DRX configuration parameters to the transmitting UE. Scenario 3: The UE is not covered by the wireless access node In this situation, the wireless access node may not be able to configure the DRX configuration parameters. Therefore, the user equipment may need to use predefined mappings between user equipment-specific information, such as ML / a / ZUZZ / UU l the status of the user equipment and the characteristics of the data packets that the user equipment should receive, and the DRX configuration parameters to determine its DRX configuration scheme. Sixth modality As an example, this mode will discuss the use of the slot bitmap to indicate the duration time pattern in the DRX configuration parameters. A slot bitmap can indicate which slots or symbols are sidelink receive resources. In some implementations, the sidelink DRX cycle is configured, which can be an integral multiple of the sidelink receive resource pool cycle—that is, the length of the slot bitmap. Alternatively, the sidelink receive resource pool cycle can be an integral multiple of the sidelink DRX cycle. Consequently, the receive duration can be configured as the number of slots within the sidelink resource pool after the start of a DRX cycle. Similarly, a slot bitmap can indicate which slots are configured to be receive-enabled or receive-disabled within the specified transmit resource range. In some In the implementation, the sidelink DRX bitmap is configured. For example, there are ten slots within one cycle of the sidelink resource pool, and slots 1, 2, 6, 7, and 9 serve as the sidelink receive resource pool. Based on the five slots, a sidelink DRX bitmap can be used to indicate which slots are for receive duration. In particular, since the number of slots for sidelink receive is five within one cycle of the sidelink resource pool, the cycle of the sidelink DRX bitmap can be configured to be five. The side-link DRX bitmap might be, for example, [1, 0, 1, 0, 1], meaning that the DRX is enabled in slots 1, 6, and 9 and the DRX is disabled in slots 2 and 7. Similarly, the DRX is enabled in slots 11, 16, 19, 21, 26, 29... and the DRX is disabled in slots 12, 17, 22, 27... Optionally, the sidelink DRX bitmap cycle can be longer than the sidelink resource pool cycle. As such, the sidelink DRX parameter cycle can be configured to be an integral multiple N of the sidelink receive resource pool cycle. If N is 2, then the sidelink DRX bitmap cycle is equal to ten (2*5). As an example, the sidelink DRX bitmap can be [1, MA / a / ZUZZ / UU / 4^3 0, 1, 0, 1, 1, O, O, 1], which means that DRX is enabled in slots 1, 6, 9, 11, 19 and DRX is disabled in slots 2, 7, 12, 16, 17. In the event that the wireless access node, such as the WANN 104, configures the DRX configuration parameters for the UE 102, since the WANN 104 also configures the sidelink receive resource pool for the UE 102, it can configure the sidelink DRX cycle or the sidelink DRX bitmap as a DRX configuration parameter for the UE 102. In the event that the transmitting UE, such as UE 124 or UE 126, configures the DRX configuration parameters for UE 102, the type of connection between UE 102 and the transmitting UE can be considered as a factor in determining which DRX configuration parameter can be configured, either the sidelink DRX cycle or the sidelink DRX bitmap. In particular, if UE 102 and the transmitting UE have established a unicast connection, the transmitting UE can receive support information from UE 102 so that the transmitting UE can configure the sidelink DRX cycle or the sidelink DRX bitmap as a DRX configuration parameter for UE 102. The support information can include, for example, information about the receive resource pool, the ML / a / ZUZZ / UU l Z40 energy saving requirement, DRX side link configuration information set for UE 102 by WANN 104 or other transmit UE. If UE 102 and the transmitting UE are in multicast or broadcast communication and no sidelink RRC connections have been established, the transmitting UE can only transmit sidelink configuration information in broadcast mode. In this case, the transmitting UE cannot obtain the receive resource reservation information from the receiving UE 102. Therefore, the transmitting UE can only configure the sidelink DRX cycle as a DRX configuration parameter for UE 102. In the event that the user equipment is outside the coverage of the wireless access node, since both the sidelink receive resource pool and the sidelink DRX configuration information are preconfigured, the sidelink DRX cycle or the sidelink DRX bitmap can be configured. Seventh modality As an example, in this mode it will be discussed that the UE 102 can be configured with multiple DRX configuration schemes, each of which can have a set of side-link DRX configuration parameters. In some implementations, multiple DRX configuration schemes can be configured according to the different target UEs. In particular, the DRX duration pattern can be customized for different target UEs. For example, UE 102 establishes sidelink connections with both UE 124 and UE 126. UE 124 and UE 126 have completely different transmission resource configurations, and therefore the resource positions to be monitored may differ. In this case, two DRX configuration schemes can be configured so that UE 102 can be adapted to the different resource positions to be monitored. In another implementation, the multiple DRX configuration schemes can be configured according to the configuration of the different sidelink receive resource groups. For example, if UE 102 is configured with multiple receive resource groups, the multiple DRX configuration schemes can correspond to these receive resource groups respectively. Eighth modality As an example, in this mode it will be said that the UE 102 reports the channel status information MA / a / ZUZZ / UU / Z40 side link (CSI) measured when UE 102 is configured with DRX configuration scheme. Specifically, UE 102 can receive sidelink CSI reporting configuration information that includes CSI reporting masking from, for example, UE 124. CSI reporting masking can indicate whether to delay reporting a sidelink channel status indication until a sidelink uptime. The receive uptime / down time set in the DRX configuration scheme can define the sidelink uptime / downtime for UE 102. When CSI reporting masking indicates that a delay is necessary, UE 102 can delay reporting the sidelink CSI until the sidelink uptime defined by the DRX configuration scheme. Thus, if the UE is configured with a sidelink DRX, the most recent CSI measurement can occur during the sidelink DRX uptime for CSI reporting. Figure 3 illustrates an exemplary implementation for user equipment sidelink communication. In this implementation, UE 102 can receive a discontinuous link receive configuration scheme. MA / a / ZUZZ / UU l Z40 ML / a / ZUZZ / UU l side link of another user equipment, such as UE 124 (310). The discontinuous receive configuration scheme of the side link may include, for example, a disabled receive duration for UE 124. If a transmit resource time domain of UE 102 is within the disabled receive duration, UE 102 may trigger a reselection of transmit resources to accommodate the discontinuous receive configuration scheme of UE 124 (320). In contrast, Figure 4 illustrates an exemplary implementation 400 in which UE 102 may not accommodate the UE 124's discontinuous sidelink receive configuration scheme. Specifically, upon receiving a side-link DRX configuration scheme from another user equipment such as UE 124 (410), UE 102 can determine a side-link DRX configuration setting information based on the side-link DRX configuration scheme (420) and then transmit the side-link DRX configuration setting information (430) to UE 124. The DRX side-link configuration adjustment information may include an adjustment value for a DRX side-link cycle defined in the DRX side-link configuration scheme. The adjustment value MA / a / ZUZZ / UU l can be an increasing / decreasing value relative to the side-link DRX cycle value or an updated side-link DRX cycle value. Alternatively, the side-link DRX configuration adjustment information may include an adjustment value for a DRX slot offset defined in the side-link DRX configuration scheme. The adjustment value may be an increasing / decreasing value relative to the DRX slot offset value or an updated DRX slot offset value. Upon receiving the sidelink DRX configuration adjustment information, the UE 124 can update the receive / receive duration in its DRX configuration scheme based on the adjustment information so that the time domain of the UE 102 transmit resource falls within the updated receive duration for the UE 124. Optionally, before transmitting intermittent receive configuration adjustment information to UE 124, UE 102 may need to receive, for UE 124, a configuration information message indicating whether intermittent receive configuration adjustment or intermittent receive configuration adjustment reporting is permitted. UE 102 can transmit intermittent receive configuration adjustment information to UE 124 only when UE 124 permits intermittent receive configuration adjustment or intermittent receive configuration adjustment reporting. In another mode, upon receiving a discontinuous sidelink receive configuration scheme from another user device, such as UE 124, UE 102 can transmit sidelink DRX configuration wizard information to UE 124. This information can, for example, include UE 102's transmit resource pool information. Using the sidelink DRX configuration wizard information, user device 124 can, for example, adjust the receive-off / receive-on duration in its DRX configuration scheme so that the time domain of user device 102's transmit resource falls within the receive-on duration, rather than the receive-off duration. Throughout this specification and these claims, terms may have nuanced meanings suggested or implied by the context beyond an explicit meaning. Similarly, the phrase "in an embodiment / implementation," as used herein, does not necessarily refer to the same embodiment. The phrase "in another embodiment / implementation," as used herein, does not necessarily refer to a different embodiment. It is intended, for example, that the claimed subject matter includes combinations of the example embodiments in whole or in part. In general, terminology can be understood, at least in part, by its use in context. For example, terms like and, or, and / or, as used here, can encompass a variety of meanings that may depend, at least in part, on the context in which they are used. Typically, or, if used to associate a list, such as A, B, or C, is intended to mean A, B, and C, used here in the inclusive sense, as well as A, B, or C, used here in the exclusive sense. Furthermore, the term one or more, as used here, which is at least partly context-dependent, can be used to describe any feature, structure, or characteristic in the singular or can MA / a / ¿U¿¿ / UU l ¿40 can be used to describe combinations of features, structures, or characteristics in the plural. Similarly, terms like a, an, or the can be understood to convey a singular or plural usage, depending at least in part on the context. Furthermore, the term based on can be understood as not necessarily intended to convey an exclusive set of factors and may, instead, allow for the existence of additional factors not necessarily expressly described, again depending at least in part on the context. References throughout this specification to features, advantages, or similar language do not imply that all features and advantages achievable with this solution must be, or are, included in a single implementation of it. Rather, the language used to refer to features and advantages means that a specific feature, advantage, or characteristic described in relation to a modality is included in at least one modality of this solution. Therefore, discussions of features and advantages, and similar language, throughout this specification may, but do not necessarily, refer to the same modality. Furthermore, the features, advantages, and characteristics described herein may be combined in any suitable manner in one or more modalities. A person skilled in the art will recognize, in light of the description herein, that this solution may be practiced without one or more of the specific features or advantages of a particular modality. In other cases, additional features and advantages may be recognized in certain modalities that may not be present in all modalities of this solution. ML / a / ZUZZ / UU / It is noted that with regard to this date the ML / a / ZUZZ / UU / Z40 The best method known to the applicant for carrying out the aforementioned invention is the one that is clear from the present description of the invention.

Claims

1. A method performed by a first user equipment in a wireless communication network, characterized in that it comprises: receiving discontinuous receive configuration information; determining a discontinuous receive configuration scheme for a sidelink communication between the first user equipment and a second user equipment based on the discontinuous receive configuration information; and performing discontinuous reception of the sidelink communication in accordance with the discontinuous receive configuration scheme.

2. The method according to claim 1, characterized in that the discontinuous reception configuration scheme indicates reception over the duration, the discontinuous sidelink reception modality comprises: monitoring the physical sidelink control channel to receive the sidelink communication only at the time domain intersection between the reception duration and a set of sidelink reception resources for the sidelink communication.

3. The method according to claim 1, characterized in that the reception of the discontinuous reception configuration information comprises: receiving the discontinuous reception configuration information from the second user equipment or from a wireless access node serving the first user equipment.

4. The method according to claim 3, characterized in that the discontinuous receive configuration information comprises one or more sets of discontinuous receive configuration parameters, each of which comprises at least one of a sidelink discontinuous receive cycle, a time duration, an on-duration time pattern, a first inactive timer, and a second inactive timer.

5. The method according to claim 4, characterized in that the duration time pattern comprises a slot bit map indicating a discontinuous sidelink receive duration.

6. The method according to claim 4, characterized in that the determination of the ML / a / ZUZZ / UU discontinuous reception configuration scheme comprises: determining one or more discontinuous reception configuration schemes, respectively, based on each of the discontinuous reception configuration parameter sets. 7The method according to claim 4, characterized in that the intermittent reception configuration information is received from the wireless access node and the intermittent reception configuration information further comprises at least one of: a mapping between a quality of service requirement and an intermittent reception configuration parameter set or an index of the intermittent reception configuration parameter set; a mapping between user equipment status information and an intermittent reception configuration parameter set or an index of the intermittent reception configuration parameter set; a mapping between a pair of quality of service requirements and user equipment status information and an intermittent reception configuration parameter set or an index of the intermittent reception configuration parameter set;and a mapping between a transmission form and an ML / a / ZUZZ / UU / discontinuous receive configuration parameter set or an index of the discontinuous receive configuration parameter set.; 8. The method according to claim 7, characterized in that the user equipment status information comprises at least one of a pedestrian user equipment, a non-pedestrian user equipment, a user equipment with an energy saving requirement, a user equipment without an energy saving requirement, and an energy saving level.

9. The method according to claim 7, characterized in that the quality of service requirement comprises at least one of time delay, reliability, traffic priority and error rate, quality of service identifier and quality of service flow identifier.

10. The method according to claim 7, characterized in that the transmission method comprises at least one of the following: unicast, multicast, and broadcast.

11. The method according to claim 7, characterized in that the determination of the discontinuous receive configuration scheme comprises: selecting the discontinuous receive configuration parameters from the discontinuous receive configuration information based on a current state of the first user equipment or on a quality of service requirement for traffic monitored by the first user equipment.

12. The method according to claim 4, characterized in that the discontinuous receive configuration information further comprises: association information between each of the discontinuous receive configuration parameter sets and a sidelink resource set; or association information between each of the discontinuous receive configuration parameter sets and one of the destination identifiers, a destination identifier index, a destination user equipment identifier, and a destination user equipment identifier index.

13. The method according to claim 4, characterized in that the reception of the discontinuous receive configuration information comprises: receiving one or more pieces of information about the sidelink resource set, each of which comprises a set of discontinuous receive configuration parameters associated with a sidelink resource set indicated by the information about the MA / a / ZUZZ / UU l Z40 sidelink resource set. ML / a / ZUZZ / UU / 14. The method according to claim 13, characterized in that the discontinuous receive configuration parameters comprise a duration time pattern comprising a slot bit map indicating a discontinuous sidelink receive duration corresponding to an entry in the associated sidelink resource pool.

15. The method according to claim 13, characterized in that the discontinuous receive configuration parameters comprise a discontinuous side-link receive cycle with a value of M, indicating that a discontinuous side-link receive cycle length is M a multiple of a cycle length of the associated side-link resource set, or M a multiple of a slot bitmap length of the associated side-link resource set.

16. The method according to claim 3, characterized in that the discontinuous receive configuration information is received from the second user equipment through a unicast sidelink radio resource control message, a multicast sidelink radio resource control message, or a broadcast sidelink radio resource control message.

17. The method according to claim 3, characterized in that the intermittent receive configuration information is received from the second user equipment, the method further comprises: transmitting the intermittent receive configuration information to the wireless access node; and receiving adjusted intermittent receive configuration information from the wireless access node; and the determination of the intermittent receive configuration scheme comprises: determining the intermittent receive configuration scheme based on the adjusted intermittent receive configuration information.

18. The method according to claim 17, characterized in that it further comprises: transmitting an identification of the second user equipment to the wireless access node.

19. The method according to claim 18, characterized in that the identification of the second user equipment comprises a target user equipment identifier, a target user equipment identifier index, a target identifier, or a target identifier index.

20. The method according to claim 3, further comprising: ML / a / ZUZZ / UU l Z40 before receiving the discontinuous receive configuration information from the wireless access node, transmitting to the wireless access node at least one of the capability informations indicating whether the first user equipment supports discontinuous sidelink receive, a user equipment status information, a quality of service requirement, and a semi-persistent programming assistant information. 21.- The method according to claim 3, characterized in that it further comprises: after receiving the intermittent reception configuration information from the wireless access node, transmitting intermittent reception configuration adjustment information to the wireless access node.

22. The method according to claim 21, characterized in that it further comprises: before transmitting intermittent receive configuration adjustment information to the wireless access node, receiving a configuration information adjustment message indicating whether intermittent receive configuration adjustment is permitted or whether intermittent receive configuration adjustment reporting is permitted.

23. The method according to claim 1, characterized in that the reception of the intermittent reception configuration information comprises: ML / a / ZUZZ / UU / Z40 MA / a / ZUZZ / UU / receiving a first intermittent reception configuration information from the second user equipment and a second intermittent reception configuration information from a third user equipment; and the determination of the intermittent reception configuration scheme comprises: determining the intermittent reception configuration scheme based on the first intermittent reception configuration information and the second intermittent reception configuration information.

24. The method according to claim 23, characterized in that it further comprises: transmitting the discontinuous reception configuration scheme to a wireless access node serving the first user equipment.

25. The method according to claim 1, characterized in that it further comprises: before receiving the discontinuous receive configuration information, transmitting a discontinuous receive configuration request for the discontinuous receive configuration information.

26. The method according to claim 25, characterized in that it further comprises: before transmitting the intermittent receive configuration request, receiving an intermittent receive configuration request message indicating whether the intermittent receive configuration request is permitted or whether an intermittent receive configuration request report is permitted.

27. The method according to claim 2, characterized in that it further comprises: receiving a sidelink channel status indication report configuration information comprising a channel status indication report masking that indicates whether the notification of a sidelink channel status indication should be delayed until a sidelink active time; and in response to the delay indication, delaying the notification of the sidelink channel status indication until the sidelink active time defined by the discontinuous receive configuration scheme.

28. A method carried out by a first user equipment in a wireless communication network, characterized in that it comprises: receiving a discontinuous sidelink receive configuration scheme from a second user equipment; and reselecting a transmission resource for sidelink communication with the second user equipment based on the discontinuous sidelink receive configuration scheme.

29. The method according to claim 28, characterized in that the reselection of the transmitting resource comprises: in response to a time domain of the transmitting resource of the first user equipment belonging to a deactivated receive duration for the second user equipment defined in the discontinuous sidelink receive configuration scheme, reselecting the transmitting resource. MA / a / ZUZZ / UU l Z40 30. A method carried out by a first user equipment in a wireless communication network, characterized in that it comprises: receiving a sidelink discontinuous receive configuration scheme from a second user equipment; determining sidelink discontinuous receive configuration setting information based on the sidelink discontinuous receive configuration scheme; and transmitting to the second user equipment the sidelink discontinuous receive configuration setting information.

31. The method according to claim ML / a / ZUZZ / UU l 30, characterized in that the determination of the sidelink discontinuous receive configuration setting information comprises: in response to a transmission resource time domain of the first user equipment belonging to a deactivated receive duration for the second user equipment defined in the sidelink discontinuous receive configuration scheme, determining the sidelink discontinuous receive configuration setting information.

32. The method according to claim 30, characterized in that it further comprises: before transmitting the intermittent receive configuration setting information of the side link to the second user equipment, receiving a configuration information setting message indicating whether an intermittent receive configuration setting is permitted or whether an intermittent receive configuration setting report is permitted.

33. The method according to claim 30, characterized in that the sidelink discontinuous receive configuration setting information comprises at least one of: a preferred increasing or decreasing value with respect to a sidelink discontinuous receive cycle length ML / a / ZUZZ / UU l defined in a current discontinuous receive configuration scheme of the first user equipment; and a preferred increasing or decreasing value with respect to a sidelink discontinuous receive slot offset 5 defined in a current discontinuous receive configuration scheme of the first user equipment.

34. A device comprising a processor and a memory, characterized in that the processor is configured to read computer code from the memory to implement a method of any of claims 1 to 33.

35. A computer-readable medium, characterized in that it comprises instructions which, when executed by a computer, cause it to carry out the method of any of claims 1 to 33.

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