Technology used to provide instructions on reserved conflicts
By using a resource reservation indication mechanism between UEs in wireless communication, the resource conflict problem between UEs is resolved, communication efficiency and reliability are improved, and the timely transmission of critical information is ensured.
Patent Information
- Application Number
- CN202180033913.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-04-01
- Filing Date
- 2021-04-02
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2041-04-02
AI Technical Summary
In wireless communication, resource reservation conflicts between user equipment (UE) can lead to transmission failures, affecting communication efficiency and reliability. This is especially true in sidelink communication, where UEs cannot effectively identify and avoid resource conflicts.
Through the indication mechanism between UEs, identification information for resource reservation is sent and received, including resource identification, UE identification and priority information. Conflict detection and avoidance are performed using side link control information (SCI) or media access control unit (MAC CE) to ensure the reasonable allocation of resource reservations.
This effectively avoids resource reservation conflicts, improves the efficiency and reliability of wireless communication, reduces the need for transmission failures and rescheduling, and ensures the timely transmission of critical information.
Smart Images

Figure CN115553050B_ABST
Abstract
Description
[0001] Cross-reference to related applications
[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 025,507, filed May 15, 2020, entitled “Technologies for Providing an Indication of a Reservation Confluence,” and U.S. Non-Provisional Patent Application No. 17 / 220,234, filed April 1, 2021, entitled “Technologies for Providing an Indication of a Reservation Confluence,” which are expressly incorporated herein by reference. Technical Field
[0003] Various aspects of this disclosure generally relate to wireless communication and techniques and apparatus for providing indications of reserved conflicts. Background Technology
[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).
[0005] Wireless communication networks may include multiple base stations (BSs) capable of supporting communication between multiple user equipments (UEs). UEs can communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmit / Receive Point (TRP), New Radio (NR) BS, 5G Node B, etc.
[0006] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global levels. New Radio (NR), also known as 5G, is a collection of enhancements to the LTE mobile standard issued by the 3rd Generation Partnership Project (3GPP). NR aims to better support mobile broadband internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL), and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation, thereby improving spectral efficiency, reducing costs, improving service, utilizing new spectrum, and better integrating with other open standards. However, with the continued growth in demand for mobile broadband access, further improvements to LTE and NR technologies are needed. Preferably, these improvements should be applicable to other multiple access technologies and telecommunications standards that employ these technologies. Summary of the Invention
[0007] In some aspects, a wireless communication method performed by a first user equipment (UE) may include: receiving from a second UE a resource reservation indicating a reservation for one or more resources; and transmitting an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the second UE.
[0008] In some respects, sending the indication may include sending the indication via one or more sidelink control information (SCI) messages, one or more media access control and control units (MAC CEs), or sidelink physical channel communication.
[0009] In some respects, at least one resource is reserved by the UE or an additional UE.
[0010] In some respects, the resource reservation instruction indicates the reservation of resources that have not been reserved, and the instruction includes the identifier of at least one resource, rather than the identifier of the unreserved resource.
[0011] In some aspects, the method includes receiving, prior to receiving a resource reservation, a previous resource reservation indicating an additional reservation for at least one resource, wherein the previous resource reservation has the same priority as or a higher priority than the resource reservation.
[0012] In some aspects, the method includes sending a prior resource reservation before receiving a resource reservation, wherein the prior resource reservation has the same priority as or a higher priority than the priority of the resource reservation.
[0013] In some aspects, the indication includes an identifier of at least one resource, and the identifier of at least one resource includes one or more of the following: an identifier of the frequency allocation of the physical side link control channel (PSCCH) of at least one resource, an identifier of the frequency allocation of the physical side link shared channel (PSSCH) of at least one resource, or an identifier of the time allocation of at least one resource.
[0014] In some aspects, the indication includes an identifier of resource reservation, and the identifier of resource reservation includes one or more of the following: an indication of frequency allocation of PSCCH associated with resource reservation, an indication of time allocation of PSCCH associated with resource reservation, an indication of a portion of resource reservation indicating reservation of at least one resource, or a coverage code index of demodulation reference signal (DMRS) used for resource reservation.
[0015] In some aspects, the identifier of a resource reservation includes an identifier indicating a portion of a resource reservation for at least one resource, and the identifier indicating a portion of a resource reservation for at least one resource is indicated using a single bit.
[0016] In some respects, the indication includes the identifier of the second UE, and the identifier of the second UE includes the source identifier of the resource reservation.
[0017] In some aspects, the instruction includes one or more of an instruction on the priority of resource reservation or an instruction on the priority of a previous resource reservation for an additional reservation of at least one resource.
[0018] In some aspects, sending the indication includes sending the indication as a sequence-based indication for at least one resource, or sending the indication as a sequence-based indication for resource reservation, or one or more of these.
[0019] In some aspects, sending the indication includes sending one or more of a first indication associated with a first sub-channel of the at least one resource and a second indication associated with a second sub-channel of the at least one resource.
[0020] In some aspects, sending a first indication includes sending the first indication using a first set of resource blocks associated with a first sub-channel, or sending a second indication using a second set of resource blocks associated with a second sub-channel.
[0021] In some respects, at least in part, a first set of resource blocks is associated with a first sub-channel based on one or more of the locations of the first sub-channel or the locations of resource reservations.
[0022] In some aspects, a wireless communication method performed by a user equipment may include: transmitting a resource reservation indicating a reservation for one or more resources; and receiving an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the UE.
[0023] In some aspects, the method includes canceling a transmission on at least one resource based at least in part on the indication including an identifier of at least one resource, and performing a transmission on another resource of one or more resources, or canceling a transmission on one or more resources based at least in part on the indication including an identifier of resource reservation or an identifier of the UE.
[0024] In some respects, resource reservation indicates the reservation of resources that have not been reserved.
[0025] In some aspects, the instruction includes an identifier of at least one resource, rather than an identifier of an unreserved resource, and the method also includes canceling a transfer on at least one resource and performing a transfer on an unreserved resource.
[0026] In some aspects, the indication includes an identifier of the at least one resource, and the identifier of the at least one resource includes one or more of an identifier of the frequency allocation of the PSCCH of the at least one resource, an identifier of the frequency allocation of the PSSCH of the at least one resource, or an identifier of the time allocation of the at least one resource.
[0027] In some aspects, the indication includes an identifier of resource reservation, and the identifier of resource reservation includes one or more of the following: an indication of frequency allocation of PSCCH associated with resource reservation, an indication of time allocation of PSCCH associated with resource reservation, an indication of a portion of resource reservation indicating reservation of at least one resource, or a coverage code index of DMRS used for resource reservation.
[0028] In some aspects, the identifier of a resource reservation includes an identifier indicating a portion of a resource reservation for at least one resource, and the identifier indicating a portion of a resource reservation for at least one resource is indicated using a single bit.
[0029] In some respects, the indication includes the UE's identifier, and the UE's identifier includes the source identifier for resource reservation.
[0030] In some aspects, the instruction includes one or more of an instruction on the priority of resource reservation or an instruction on the priority of a previous resource reservation for an additional reservation of at least one resource.
[0031] In some aspects, receiving the instruction includes receiving the instruction as a sequence-based instruction for at least one resource, or receiving the instruction as a sequence-based instruction for resource reservation, or one or more of these.
[0032] In some aspects, receiving the indication includes receiving one or more of a first indication associated with a first sub-channel of the at least one resource and a second indication associated with a second sub-channel of the at least one resource.
[0033] In some aspects, receiving a first instruction includes receiving the first instruction using a first set of resource blocks associated with a first sub-channel, or receiving a second instruction using a second set of resource blocks associated with a second sub-channel.
[0034] In some respects, at least in part, a first set of resource blocks is associated with a first sub-channel based on one or more of the locations of the first sub-channel or the locations of resource reservations.
[0035] In some aspects, a first user equipment for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to receive from a second UE a resource reservation indicating a reservation for one or more resources; and to transmit an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the second UE.
[0036] In some aspects, a user equipment for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to transmit a resource reservation indicating a reservation for one or more resources; and to receive an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the UE.
[0037] In some respects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a first UE, the one or more instructions may cause the one or more processors to receive from a second UE a resource reservation indicating a reservation for one or more resources; and to send an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the second UE.
[0038] In some respects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of the UE, the one or more instructions may cause the one or more processors to send a resource reservation indicating a reservation for one or more resources; and to receive an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the UE.
[0039] In some aspects, an apparatus for wireless communication may include: a resource reservation device module for receiving from a UE an indication of reservation of one or more resources; and a device module for transmitting an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the UE.
[0040] In some aspects, an apparatus for wireless communication may include: a resource reservation device module for transmitting an indication of reservation of one or more resources; and a means for receiving an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of the resource reservation, or an identifier of the means.
[0041] The terms generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems, which are basically described herein with reference to the accompanying drawings and description.
[0042] The features and technical advantages of the examples according to this disclosure have been outlined rather broadly above to facilitate a better understanding of the detailed description that follows. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifications or designs of other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and operation, and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and is not intended to define limitations of the claims. Attached Figure Description
[0043] To gain a more detailed understanding of the features of this disclosure, reference can be made to several aspects for which a brief overview has been provided above, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure, and since this description may acknowledge other equally valid aspects, it should not be considered as limiting its scope. The same reference numerals in different drawings may denote the same or similar elements.
[0044] Figure 1 This is a diagram illustrating an example of a wireless communication network according to various aspects of this disclosure.
[0045] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless communication network according to various aspects of this disclosure.
[0046] Figure 3 This is a diagram illustrating an example of a reserved conflict according to various aspects of this disclosure.
[0047] Figure 4 This is a diagram illustrating examples of techniques for providing instructions on reserved conflicts according to various aspects of this disclosure.
[0048] Figure 5 This is a diagram illustrating examples of techniques for providing instructions on reserved conflicts according to various aspects of this disclosure.
[0049] Figure 6 This is a diagram illustrating examples of techniques for providing instructions on reserved conflicts according to various aspects of this disclosure.
[0050] Figure 7 This is a diagram illustrating examples of techniques for providing instructions on reserved conflicts according to various aspects of this disclosure.
[0051] Figure 8 This is a diagram illustrating example processes performed by a user device, according to various aspects of this disclosure.
[0052] Figure 9 This is a diagram illustrating example processes performed by a user device, according to various aspects of this disclosure.
[0053] Figure 10 This is a data flow diagram illustrating the data flow between different components in an example device according to various aspects of this disclosure. Detailed Implementation
[0054] Various aspects of this disclosure will be described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided to make this disclosure thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art should understand that the scope of this disclosure is intended to cover any aspect disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover an apparatus or method practiced using a structure, function, or structure and function other than or different from the aspects of this disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.
[0055] Several aspects of a telecommunications system will now be described with reference to various devices and technologies. These devices and technologies will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented in hardware or software depends on the specific application and the design constraints on the overall system.
[0056] It should be noted that although terms commonly associated with 3G and / or 4G wireless technologies may be used in this document to describe aspects, aspects of this disclosure may be applied to communication systems based on other generations (such as 5G and later communication systems, including NR technologies).
[0057] Figure 1 This is a schematic diagram of a wireless network 100 in which various aspects of this disclosure can be practiced. The wireless network 100 can be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 can include multiple BS 110s (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to the coverage area of a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.
[0058] A Base Station (BS) can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area and can allow unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home) and can allow restricted access for UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS for a macrocell can be referred to as a macro BS. A BS for a picocell can be referred to as a pico BS. A BS for a femtocell can be referred to as a femtocell BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS of macro cell 102a, BS 110b can be a pico BS of pico cell 102b, and BS 110c can be a femto BS of femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB”, “BS”, “NR BS”, “gNB”, “TRP”, “AP”, “Node B”, “5G NB”, and “cell” are used interchangeably in this document.
[0059] In some respects, the cell is not necessarily stationary, and the geographical area of the cell can move depending on the location of the mobile BS. In some respects, the BS can use any suitable transport network to interconnect with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as direct physical connections, virtual networks, etc.
[0060] The wireless network 100 may also include relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station can also be referred to as a relay BS, relay, relay, etc.
[0061] Wireless network 100 can be a heterogeneous network, including different types of base stations (BSs), such as macro BSs, pico BSs, femto BSs, and relay BSs. These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts).
[0062] Network controller 130 can be coupled to a group of base stations (BSs) and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other directly or indirectly, for example, via wireless or wired backhaul.
[0063] UEs 120 (e.g., 120a, 120b, 120c) may be distributed across the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biosensor / device, a wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, or any other suitable device configured to communicate via wireless or wired media.
[0064] Some UEs can be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, instruments, monitors, location tags, etc., which can communicate with a BS, another device (e.g., a remote device), or some other entity. For example, a wireless node can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included within a housing that houses the components of UE 120 (e.g., processor components, memory components, etc.).
[0065] Typically, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific Radio Access Platform (RAT) and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.
[0066] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as a medium for communication with each other). For example, UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, mesh networks, etc.). In this case, UEs 120 may perform scheduling operations, resource selection operations, and / or other operations performed by base station 110 as described elsewhere herein.
[0067] As above, Figure 1 This is provided as an example. Other examples may differ from those provided. Figure 1 As described.
[0068] Figure 2 A block diagram of a design 200 for base station 110 and UE 120 is shown. Base station 110 and UE 120 can be... Figure 1 One of the base stations (BS) and one of the UEs (UEs) in the system. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, where typically T ≥ 1 and R ≥ 1.
[0069] At base station 110, transmitting processor 220 can receive data from data source 212 of one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from the UE, process (e.g., encode and modulate) the UE's data based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmitting processor 220 can also process system information (e.g., information for semi-static resource allocation (SRPI) and other similar information) and control information (e.g., CQI requests, grants, upper-layer signaling, etc.), and provide overhead symbols and control symbols. Transmitting processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols (if applicable), and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted separately via T antennas 234a to 234t. Position coding can be used to generate synchronization signals to convey additional information, according to various aspects described in more detail below.
[0070] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other BSs, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM, etc.) to obtain the received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide the decoded data of UE 120 to data sink 260, and provide the decoded control information and system information to controller / processor 280. The channel processor can determine the Received Reference Signal Power (RSRP), Received Signal Strength Indicator (RSSI), Received Reference Signal Quality (RSRQ), Channel Quality Indicator (CQI), etc. In some respects, one or more components of the UE 120 may be included in a housing.
[0071] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting, including RSRP, RSSI, RSRQ, CQI, etc.). The transmitting processor 264 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 can be pre-encoded (if applicable) by the TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to base station 110. At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiving processor 238 to obtain decoded data and control information transmitted by UE 120. The receiving processor 238 can provide decoded data to the data sink 239 and decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244, and communicates with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.
[0072] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2Any other component(s) may perform one or more techniques associated with providing indication of reservation conflicts, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component (or multiple components) can execute or direct, for example... Figure 8 The process 800 Figure 9 The operation of process 900 and / or other processes herein. Memory 242 and 282 may store data and program code of base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, when executed by one or more processors of base station 110 and / or UE 120, one or more instructions may execute or direct, for example... Figure 8 The process 800 Figure 9 The operation of process 900 and / or other processes herein. Scheduler 246 can schedule the UE to perform data transmission on the downlink and / or uplink.
[0073] In some aspects, UE 120 may include a device module for receiving from a second UE an indication of resource reservation for one or more resources; a device module for transmitting an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the second UE; etc. In some aspects, UE 120 may include a device module for transmitting an indication of resource reservation for one or more resources; a device module for receiving an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of at least one resource, an identifier of a resource reservation, or an identifier of the UE; etc. In some aspects, these modules may include combinations of... Figure 2 One or more components of the described UE 120, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.
[0074] As above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 As described.
[0075] Figure 3 This is a diagram illustrating example 300 of a reserved conflict according to various aspects of this disclosure. (See diagram 300.) Figure 3As shown, the first UE and the second UE can communicate using, for example, a sidelink channel. The first UE and the second UE can be part of a wireless network that includes one or more additional UEs.
[0076] like Figure 3 As shown, and as indicated by reference numeral 305 in the accompanying drawing, the first UE can send a first resource reservation in a first resource. The first UE can use data transmission in the first resource to send the first resource reservation. The first resource may include one or more resource blocks. The first resource reservation can reserve one or more resources for future transmissions of the first UE.
[0077] As shown by reference numeral 310 in the attached figure, the second UE can transmit a second resource reservation in the second resource. The second UE can use data transmission in the second resource to transmit the second resource reservation. The second resource may include one or more resource blocks. The second resource reservation can reserve one or more resources for future transmissions of the second UE.
[0078] As shown by reference numeral 315 in the attached figure, the first resource reservation and the second resource reservation may reserve conflicting resources (e.g., resources reserved by different UEs). In some examples, the first resource reservation may have the same priority as or a higher priority than the second resource reservation. In some of these examples, the second resource reservation may not be allowed (e.g., at least in part based on communication standards) to preempt the first resource reservation. In some of these examples, the second UE may be allowed to transmit on the second resource reservation at least in part based on the signal strength of the first resource reservation (e.g., as observed by the second UE). However, an additional UE may be within the coverage area of both the first and second UEs, and if the second UE is also transmitting on the conflicting resource, it may be unable to receive the first UE's transmission on the conflicting resource.
[0079] If the second UE is unaware that the conflicting resource was reserved by the first UE, the second UE may transmit on the conflicting resource. This could result in one or more additional UEs being unable to receive the transmissions from either the first UE or the second UE on the conflicting resource. This failure could cause the first UE, the second UE, and / or one or more additional UEs to consume computing, network, and / or communication resources to reschedule and transmit the rescheduled transmissions. Additionally or alternatively, this failure could cause one or more additional UEs to be unable to receive the transmission within the relevant timeframe. For example, one or more additional UEs (e.g., a vehicle-associated UE) might fail to receive an emergency braking warning from either the first or second UE, potentially leading to a collision.
[0080] As mentioned above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3As described.
[0081] In some aspects described herein, a first UE may send or receive from another UE an indication of a first resource reservation for one or more resources. The first UE may also receive from a second UE an indication of a second resource reservation for one or more resources (including at least one resource reserved via the first resource reservation). The first UE may send (e.g., broadcast, unicast, etc.) an indication that the at least one resource is reserved. In some aspects, the indication may include an identifier of the at least one resource, an identifier of the second resource reservation, an identifier of the second UE, etc. In this way, the second UE can use one or more of the identifiers to cancel a transmission in a conflicting resource, rather than causing a conflict between one or more additional UEs that might attempt to receive a transmission from the first UE or from the second UE.
[0082] Additionally or alternatively, by sending an indication including the identifier of the second UE, the second UE can determine that it is the second UE, rather than the first UE, that wants to cancel the transmission in the conflicting resource. By sending an indication including the identifier of the at least one resource and / or the identifier of the second resource reservation, the second UE can cancel the transmission in the conflicting resource while still transmitting in another resource that has not yet been reserved (e.g., another available resource).
[0083] Figure 4 This is a diagram illustrating example 400 of a technique for providing instructions on reserved conflicts according to various aspects of this disclosure. Figure 4 As shown, the first UE (e.g., UE 120), the second UE (e.g., UE 120), and the third UE (e.g., UE 120) can communicate in a wireless network (e.g., wireless network 100).
[0084] In some aspects, the first UE, the second UE, and the third UE may communicate using sidelink channel communication (e.g., broadcast transmission, unicast transmission, etc.). In some aspects, the UE may transmit a first transmission including control information (e.g., sidelink control information (SCI)) and data. The control information may indicate resource reservation for one or more additional resources, in which the UE may transmit additional data and / or control information.
[0085] As shown by reference numeral 405 in the attached figure, the first UE may transmit a first resource reservation. A third UE, a second UE, and / or one or more additional UEs may receive the first resource reservation. In some aspects, the second UE may not receive the first resource reservation based at least in part on, for example, transmission occurring during the first resource reservation (e.g., uplink or sidelink transmission), or the second UE being outside the coverage area of the first UE. In some aspects, the second UE may receive the first resource reservation with a signal strength (e.g., signal-to-interference-to-noise ratio (SINR)) that does not meet a threshold (e.g., indicating that the first UE is outside the coverage area of the second UE and is unlikely to cause a collision).
[0086] As shown by reference numeral 410 in the attached figure, the second UE may send a second resource reservation. In some aspects, the second resource reservation may indicate the reservation of resources not reserved for the first UE, the second UE, and / or additional UEs within the coverage area of the second UE. In some aspects, the second UE may send the second resource reservation after, before, or simultaneously with the first resource reservation.
[0087] A third UE, a first UE, and / or one or more additional UEs may receive a second resource reservation. In some aspects, the first UE may not receive the second resource reservation at least in part based on, for example, transmissions occurring during the second resource reservation period (e.g., uplink or sidelink transmissions), or the first UE being outside the coverage area of the second UE. In some aspects, the first UE may receive a second resource reservation with a signal strength that does not meet a threshold (e.g., indicating that the second UE is outside the coverage area of the first UE and is unlikely to cause a collision).
[0088] As shown by reference numeral 415 in the attached figure, the third UE can determine that there is a conflict between the first reservation and the second reservation. In some aspects, the third UE can determine that the second resource reservation indicates a reservation for at least one resource that was reserved (e.g., reserved by the first UE or another UE). In some aspects, the conflict arises at least in part from the fact that at least one resource in the second reservation overlaps with a resource associated with the first reservation. In some aspects, the overlap can be temporal, frequency-based, or both. In some aspects, the third UE can determine that the second resource reservation is not allowed to preempt the first resource reservation, at least in part, for example, based on the fact that the second resource reservation has the same or lower priority than the first resource reservation. In some aspects, such as when the second UE sends the second resource reservation after or simultaneously with the first UE (e.g., at least in part based on the fact that the first resource reservation is allowed to preempt the second resource reservation), the third UE can determine that the second reservation will be cancelled.
[0089] In some aspects, the third UE may determine (e.g., broadcast, unicast, etc.) an indication that at least one resource reserved via the second resource reservation has been reserved (e.g., previously reserved, and / or reserved with higher priority, etc.). The third UE may determine information to be sent along with the indication, such as the identifier of the conflicting at least one resource, the identifier of the second resource reservation, the identifier of the first UE, the identifier of the second UE, etc. In some aspects, the third UE may determine one or more resources in which the indication is sent. For example, the third UE may determine the one or more resources at least in part based on the one or more resources mapped to the second resource reservation, the reserved resources, etc.
[0090] As shown by reference numeral 420 in the attached figure, the third UE may send a conflict indication, including reserved resources (e.g., at least one resource), a second resource reservation, and / or the identifier of the second UE. In some aspects, the third UE may send this indication via SCI messages, one or more Media Access Control Element (MAC CE) or sidelink physical channels (e.g., Physical Sidelink Shared Channel (PSSCH)).
[0091] In some aspects, the indication may identify at least one reserved resource and may include the identification of another resource not reserved in the second resource reservation. In other aspects, the indication may identify the at least one resource as reserved and may identify the other resource in the second resource reservation as unreserved (e.g., an available resource determined by a third UE), etc. In this way, the second UE may determine to cancel transmissions in the reserved resources and / or perform transmissions in the unreserved resources.
[0092] In some aspects, the identifier of the at least one resource includes an identifier of the frequency allocation of the Physical Side Link Shared Channel (PSSCH) of the at least one resource, an identifier of the time allocation of the at least one resource, etc. In some aspects, the identifier of the at least one resource may include an identifier of the location (e.g., time-frequency location) of the starting resource block of the PSSCH, PSCCH, etc.
[0093] In some aspects, the identifier of the second resource reservation includes an identifier of the frequency allocation of the PSCCH associated with the second resource reservation, an indication of the time allocation of the PSCCH associated with the second resource reservation, an indication of a portion of the second resource reservation indicating the reservation of at least one resource, a coverage code index of the demodulation reference signal (DMRS) used for the second resource reservation, etc. In some aspects, the identifier of the second resource reservation may include an identifier of the location of the starting resource block of the PSCCH.
[0094] In some aspects, the identifier of the at least one resource may include an identifier indicating the location (e.g., time location, frequency location, or both) of a portion of a second resource reservation for a reserved resource. This allows the second UE to distinguish the reservation of the reserved resource from the reservation of another unreserved resource. Additionally or alternatively, the first UE may determine that the indication is not directed at the first UE because the first UE did not use the resource at the identified location to send the first resource reservation. In some aspects, when the maximum number of future reservations is two or less, the identifier of the at least one resource may include a single-bit indicator. For example, 0 may indicate the first reserved resource, and 1 may indicate the second reserved resource, wherein the first and second reserved resources are determined at least in part based on the order indicated in the second resource reservation, the subframe in which the reserved resource is located, etc.
[0095] In some respects, the identifier of the second UE includes the source identifier of the second UE. For example, the third UE may determine the source ID associated with the second resource reservation and may indicate the source ID in the indication.
[0096] In some aspects, the instruction may include an indication of the priority of the second resource reservation, indicating that the second resource reservation should be cancelled. In some aspects, the instruction may include an indication of the priority of the first resource reservation, indicating that the first resource reservation has priority over the reserved resources.
[0097] In some aspects, the second UE may transmit an indication including a first indication associated with a first sub-channel of reserved resources, one or more additional indications associated with one or more additional sub-channels of reserved resources, etc. In some aspects, the second UE may use a first set of resource blocks mapped to the first sub-channel (e.g., one or more resource blocks) to transmit the first indication, and may use one or more additional sets of resource blocks mapped to one or more additional sub-channels to transmit one or more additional indications, etc. In some aspects, the first set of resource blocks may be mapped to the first sub-channel at least in part based on the location of the first sub-channel, the location of the second resource reservation, etc.
[0098] As shown by reference numeral 425 in the accompanying drawings, a first UE sending a first resource reservation can determine that there is a conflict between the first reservation and the second reservation. In some aspects, the first UE can determine that the second resource reservation indicates a reservation of at least one resource reserved by the first UE. In some aspects, the conflict is at least partially based on the fact that at least one resource in the second reservation overlaps with a resource associated with the first reservation. In some aspects, at least one resource in the second reservation may overlap with a resource associated with the first reservation in time, frequency, or both. In some aspects, the first UE can determine that the second resource reservation is not allowed to preempt the first resource reservation, at least partially based on, for example, that the second resource reservation has the same or lower priority than the first resource reservation.
[0099] As described with reference to reference numeral 415 relative to a third UE, a first UE may determine that an indication is being transmitted (e.g., broadcast, unicast, etc.) that at least one resource reserved via a second resource reservation has been reserved. The first UE may determine information to be transmitted along with the indication, such as the identifier of the conflicting at least one resource, the identifier of the second resource reservation, the identifier of the first UE, the identifier of the second UE, etc. In some aspects, the first UE may determine one or more resources in which the indication is transmitted. For example, the first UE may determine the one or more resources at least in part based on the one or more resources mapped to the second resource reservation, the reserved resources, etc.
[0100] As indicated by reference numeral 430 in the accompanying drawings, the first UE may send a conflict indication, including a reserved resource (e.g., the at least one resource), a second resource reservation, and / or the identifier of the second UE. In some aspects, the first UE may send the indication via an SCI message, one or more MAC CEs, or a sidelink physical channel (e.g., PSSCH). In some aspects, the first UE may use one or more techniques described herein, at least in part, based on one or more conditions described herein (e.g., as described with respect to a third UE with reference to reference numeral 420), to send the indication.
[0101] Based at least in part on the instruction sent by the first UE and / or the third UE, the second UE can use one or more identifiers in the identifier to cancel a transmission in a reserved resource, rather than causing a conflict between the third UE and / or one or more additional UEs that might attempt to receive a transmission from the first UE or from the second UE. Additionally or alternatively, by causing the first UE or the third UE to send an instruction including the identifier of the second UE, the second UE can determine that it is the second UE, not the first UE, that wants to cancel a transmission in the conflicting resource. By sending an instruction including the identifier of the at least one resource and / or the identifier of the second resource reservation, the second UE can cancel a transmission in the conflicting resource while still transmitting in another resource identified in the second resource reservation.
[0102] As above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 As described.
[0103] Figure 5 This is a diagram illustrating example 500 of a technique for providing instructions on reserved conflicts according to various aspects of this disclosure. Figure 5 As shown, the first UE (e.g., UE 120) and the second UE (e.g., UE 120) can communicate using, for example, sidelink channel communication. The first UE and the second UE can be part of a wireless network that includes one or more additional UEs.
[0104] like Figure 5 As shown, and as indicated by reference numeral 505 in the accompanying drawing, the first UE can send a first resource reservation in a first resource. The first UE can use data transmission in the first resource to send the first resource reservation. The first resource may include one or more resource blocks. The first resource reservation may reserve one or more resources (e.g., two resources) for future transmissions by the first UE. In some aspects, future transmissions may include new data, retransmission of data from the first resource, etc.
[0105] As shown by reference numeral 510 in the attached figure, the second UE can transmit a second resource reservation in a second resource. The second UE can use data transmission in the second resource (e.g., after the first resource) to transmit the second resource reservation. The second resource may include one or more resource blocks. The second resource reservation can reserve one or more resources for future transmissions of the second UE.
[0106] As shown by reference numeral 515 in the attached figure, both the first resource reservation and the second resource reservation can reserve conflicting resources (e.g., resources reserved by the first UE that overlap with the second UE in one or more times or frequencies). In some aspects, the first resource reservation can have the same priority as the second resource reservation, or a higher priority. In some aspects, the second resource reservation may not be allowed (e.g., at least in part based on communication standards) to preempt the first resource reservation. In some aspects, the second UE may be allowed to transmit the second resource reservation, at least in part based on the signal strength of the first resource reservation (e.g., observed by the second UE). However, additional UEs (e.g., Figure 4 The third UE may be within the coverage area of the first UE and the second UE, and if the second UE is also transmitting in the conflicting resource, it may not be able to receive the transmission of the first UE in the conflicting resource.
[0107] As shown by reference numeral 520 in the attached figure, the first UE or the additional UE may send a conflict indication. For example, the first UE or the additional UE may send an indication that at least one of one or more resources conflicts with an additional resource reservation. In some aspects, the indication may identify the conflicting resource, the resource reservation that caused the conflict (e.g., a second resource reservation), an identifier of the UE that sent the second resource reservation that caused the conflict, etc.
[0108] In some aspects, the identification of a conflicting resource may include frequency information of the conflicting resource (e.g., the frequency allocation of the associated PSSCH (e.g., resolving partial conflicts caused by some resource blocks reserved only for the second resource) or the location of the associated PSCCH (e.g., using fewer bits than the number of bits used to identify the frequency allocation of the conflicting resource)). In some aspects, the identification of a conflicting resource may include time information of the conflicting resource (e.g., one or more time slots). In some aspects, the conflicting resource may be located up to 31 time slots after the second resource reservation.
[0109] In some aspects, the identifier of the second resource reservation (e.g., a portion of the second reservation identifying the conflicting resource) may include frequency information (e.g., a PSCCH subchannel) indicating the reservation of the conflicting resource. In some aspects, the identifier of the second resource reservation may include time information (e.g., one or more time slots) indicating the reservation of the conflicting resource. In some aspects, the time information may indicate the approximate location of the PSCCH indicating the reservation of the conflicting resource (e.g., with fewer bits than the number of bits indicating the precise location of the PSCCH). In some aspects, the identifier of the second resource reservation may include an index of the reservation of the conflicting resource (e.g., one bit if the maximum number of future reservations is 2), and an implicit indication of the reservation of the conflicting resource (e.g., the presence of this indication implies that a future reservation is associated with the conflicting resource when only one future reservation is made).
[0110] In some aspects, the identifier of the second resource reservation may identify the SCI containing the second resource reservation. In these aspects, the second UE may cancel all future reservations indicated in the SCI. In some aspects, the identifier of the second resource reservation includes an indication of the frequency domain orthogonal coverage code (FDD-OCC) index of the DMRS used by the second UE to transmit the PSCCH of the second resource reservation therein.
[0111] As above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 As described.
[0112] Figure 6 This is a diagram illustrating example 600 of a technique for providing instructions on reserved conflicts according to various aspects of this disclosure. Figure 6 As shown, the first UE (e.g., UE 120) and the second UE (e.g., UE 120) can communicate using, for example, sidelink channel communication. The first UE and the second UE can be part of a wireless network that includes one or more additional UEs.
[0113] like Figure 6As shown, and as indicated by reference numeral 605, a conflict indication resource can be associated with a sub-channel of a reserved resource (e.g., mapped to a sub-channel of a reserved resource). As indicated by reference numeral 610, a sub-channel of a reserved resource can be associated with a conflict indication resource. For example, a first UE, a second UE, and / or one or more additional UEs can be configured to determine the resource to be used, at least in part, based on the time-frequency location of the sub-channel of the conflicting resource, to indicate a resource reservation conflict. In some aspects, the first UE, the second UE, and / or one or more additional UEs can be configured to provide the conflict identification using sequence-based transmissions. In some aspects, the sub-channel can have a one-to-one mapping to a resource block of the conflict indication resource. In some aspects, a sub-channel of a reserved resource can be associated with multiple resource blocks to increase the capacity of additional information (e.g., the identification described herein).
[0114] As above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 As described.
[0115] Figure 7 This is a diagram illustrating example 700 of a technique for providing instructions on reserved conflicts according to various aspects of this disclosure. Figure 7 As shown, the first UE (e.g., UE 120) and the second UE (e.g., UE 120) can communicate using, for example, sidelink channel communication. The first UE and the second UE can be part of a wireless network that includes one or more additional UEs.
[0116] like Figure 7 As shown, referring to reference numeral 705, a resource-reserved sub-channel can be associated with a conflict-indicating resource. As shown by reference numeral 710, a conflict-indicating resource can be associated with a resource-reserved sub-channel. For example, a first UE, a second UE, and / or one or more additional UEs can be configured to determine the resource to be used, at least in part, based on the time-frequency position of the resource-reserved sub-channel used to reserve the conflicting resource, to indicate a resource reservation conflict. In some aspects, the first UE, the second UE, and / or one or more additional UEs can be configured to use sequence-based transmissions to provide a conflict identifier. In some aspects, the resource-reserved sub-channel can have a one-to-one mapping to a resource block of the conflict-indicating resource. In some aspects, the sub-channel can be associated with multiple resource blocks to increase the capacity of additional information (e.g., the identifier described herein). In some aspects, the first UE, the second UE, and / or one or more additional UEs can use cyclic shifting to indicate the reservation index with an SCI to indicate which reserved resource conflicts with a previous reservation.
[0117] As above, Figure 7 This is provided as an example. Other examples may differ from the reference. Figure 7 As described.
[0118] Figure 8 This is a diagram illustrating an example process 800 performed by a first UE, for example, according to various aspects of this disclosure. Example process 800 is an example of operations performed by a first UE (e.g., first UE 120, etc.) in association with techniques used to provide indications of reservation conflicts.
[0119] like Figure 8 As shown, in some aspects, process 800 may include receiving a resource reservation (block 810) from a second UE indicating the reservation of one or more resources. For example, as described above, a first UE (e.g., using a receiving processor 258, a controller / processor 280, a memory 282, etc.) may receive a resource reservation from the second UE indicating the reservation of one or more resources.
[0120] like Figure 8 As further illustrated, in some aspects, process 800 may include sending an indication that at least one of one or more resources conflicts with an additional resource reservation (e.g., is reserved), the indication including one or more of the identifier of the at least one resource, the identifier of the resource reservation, or the identifier of the second UE (block 820). For example, as described above, a first UE (e.g., using a transmitting processor 264, a controller / processor 280, a memory 282, etc.) may send an indication that at least one of one or more resources conflicts with an additional resource reservation, the indication including one or more of the identifier of the at least one resource, the identifier of the resource reservation, or the identifier of the second UE.
[0121] Process 800 may include additional aspects, such as any single aspect or any combination of aspects of one or more other processes described below and / or described elsewhere herein.
[0122] In the first aspect, sending the indication includes sending the indication via one or more of an SCI message, one or more MAC CEs, or sidelink physical channel communications.
[0123] In the second aspect, either alone or in combination with the first aspect, at least one resource is reserved by the UE or an additional UE.
[0124] In a third aspect, either alone or in combination with one or more of the first and second aspects, a resource reservation instruction indicates the reservation of a resource that has not been reserved, and the instruction includes the identifier of the at least one resource but does not include the identifier of the resource that has not been reserved.
[0125] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 800 includes, prior to receiving a resource reservation, receiving a previous resource reservation indicating an additional reservation for the at least one resource, wherein the previous resource reservation has the same priority as or a higher priority than the resource reservation.
[0126] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 800 includes sending a previous resource reservation before receiving a resource reservation, wherein the previous resource reservation has the same priority as or a higher priority than the resource reservation.
[0127] In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, the indication includes an identifier of at least one resource, and the identifier of the at least one resource includes one or more of an identifier of the frequency allocation of the PSCCH of the at least one resource, an identifier of the frequency allocation of the PSSCH of the at least one resource, or an identifier of the time allocation of the at least one resource.
[0128] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the indication includes an identifier of a resource reservation, and the identifier of the resource reservation includes one or more of the following: an indication of frequency allocation of a PSCCH associated with the resource reservation, an indication of time allocation of a PSCCH associated with the resource reservation, an indication of a portion of the resource reservation indicating a reservation of at least one resource, or a coverage code index of a DMRS for the resource reservation.
[0129] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the identifier of the resource reservation includes an identifier indicating a portion of the resource reservation for the at least one resource, and the identifier indicating a portion of the resource reservation for the at least one resource is indicated using a single bit.
[0130] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the indication includes the identifier of the second UE, and the identifier of the second UE includes the source identifier of the resource reservation.
[0131] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the instruction includes one or more of the following: an instruction on the priority of a resource reservation, or an instruction on the priority of a prior resource reservation for an additional reservation of the at least one resource.
[0132] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, sending an instruction includes sending the instruction as a sequence-based instruction for at least one resource, or sending the instruction as a sequence-based instruction for resource reservation, or one or more of these.
[0133] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, the transmission indication includes one or more of a first indication associated with a first sub-channel of the at least one resource and a second indication associated with a second sub-channel of the at least one resource.
[0134] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, sending a first instruction includes sending a first instruction using a first set of resource blocks associated with a first sub-channel, sending a first instruction using a first set of resource blocks associated with a sub-channel containing resource reservations, sending a second instruction using a second set of resource blocks associated with a second sub-channel, or sending a second instruction using a second set of resource blocks associated with a sub-channel containing resource reservations.
[0135] In the fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, at least in part based on one or more of the location of the first sub-channel or the location of resource reservations, the first set of resource blocks is associated with the first sub-channel.
[0136] In the fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, at least in part, based on the overlap of at least one of the one or more resources with a resource associated with an additional resource reservation, wherein the overlap of at least one of the one or more resources with the resource associated with the additional resource reservation is in one or both of time and frequency.
[0137] although Figure 8 An example box of process 800 is shown, but in some respects, process 800 may include more than Figure 8 The boxes depicted may include more boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 800 may be executed in parallel.
[0138] Figure 9 This is a diagram illustrating, for example, an example process 900 performed by a UE according to various aspects of this disclosure. Example process 900 is an example of an operation performed by a UE (e.g., UE 120, etc.) associated with a technology for providing indication of reservation conflicts.
[0139] like Figure 9As shown, in some aspects, process 900 may include sending a resource reservation indicating the reservation of one or more resources (block 910). For example, as described above, the UE (e.g., using a transmitting processor 264, a controller / processor 280, a memory 282, etc.) may send a resource reservation indicating the reservation of one or more resources.
[0140] like Figure 9 As further illustrated, in some aspects, process 900 may include receiving an indication that at least one of one or more resources conflicts with an additional resource reservation (e.g., is reserved), the indication including one or more of the identifier of the at least one resource, the identifier of the resource reservation, or the identifier of the UE (block 920). For example, the UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive an indication that at least one of one or more resources conflicts with an additional resource reservation, the indication including one or more of the identifier of the at least one resource, the identifier of the resource reservation, or the identifier of the UE, as described above.
[0141] Process 900 may include additional aspects, such as any single aspect or any combination of aspects of one or more other processes described below and / or described elsewhere herein.
[0142] In a first aspect, process 900 includes canceling a transmission on at least one resource based at least in part on the indication including the identifier of the at least one resource, and performing a transmission on another resource of one or more resources, or canceling a transmission on one or more resources based at least in part on the indication including the identifier of resource reservation or the identifier of the UE.
[0143] In the second aspect, either alone or in combination with the first aspect, resource reservation indicates the reservation of resources that have not been reserved.
[0144] In a third aspect, either alone or in combination with one or more of the first and second aspects, the indication includes the identifier of the at least one resource, rather than the identifier of the unreserved resource, and the process 900 further includes canceling the transmission on the at least one resource and performing the transmission on the unreserved resource.
[0145] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the indication includes an identifier of the at least one resource, and the identifier of the at least one resource includes one or more of an identifier of the frequency allocation of the PSCCH of the at least one resource, an identifier of the frequency allocation of the PSSCH of the at least one resource, or an identifier of the time allocation of the at least one resource.
[0146] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the indication includes an identifier of a resource reservation, and the identifier of the resource reservation includes one or more of the following: an indication of frequency allocation of a PSCCH associated with the resource reservation, an indication of time allocation of a PSCCH associated with the resource reservation, an indication of a portion of the resource reservation indicating the reservation of at least one resource, or a coverage code index of a DMRS for the resource reservation.
[0147] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the identifier of the resource reservation includes an identifier indicating a portion of the resource reservation for the at least one resource, and the identifier indicating a portion of the resource reservation for the at least one resource is indicated using a single bit.
[0148] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the indication includes the identifier of the UE, and the identifier of the UE includes the source identifier of the resource reservation.
[0149] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the instruction includes one or more of the following: an instruction on the priority of a resource reservation, or an instruction on the priority of a prior resource reservation for an additional reservation of the at least one resource.
[0150] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, receiving an instruction includes receiving the instruction as a sequence-based instruction for the at least one resource, or receiving one or more of the instructions as a sequence-based instruction for resource reservation.
[0151] In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, the receiving indication includes one or more of a first indication associated with a first sub-channel of the at least one resource and a second indication associated with a second sub-channel of the at least one resource.
[0152] In the eleventh aspect, receiving the first instruction, either alone or in combination with one or more of the first to tenth aspects, includes receiving the first instruction using a first set of resource blocks associated with a first sub-channel, receiving the first instruction using a first set of resource blocks associated with a sub-channel containing resource reservations, receiving the second instruction using a second set of resource blocks associated with a second sub-channel, or receiving the second instruction using a second set of resource blocks associated with a sub-channel containing resource reservations.
[0153] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, at least in part based on one or more of the location of the first sub-channel or the location of resource reservations, the first set of resource blocks is associated with the first sub-channel.
[0154] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, at least in part based on at least one of the one or more resources overlapping with a resource associated with an additional resource reservation in one or more of the time or frequency, wherein at least one of the one or more resources conflicts with the additional resource reservation.
[0155] although Figure 9 An example box of process 900 is shown, but in some respects, process 900 may include more than Figure 9 The boxes depicted may include more boxes, fewer boxes, different boxes, or boxes arranged differently. Additionally or alternatively, two or more boxes in process 900 may be executed in parallel.
[0156] Figure 10 This is a conceptual data flow diagram 1000 illustrating the data flow between different components in example device 1002. Device 1002 may be a UE (e.g., Figure 4 The first UE (UE 120). In some aspects, the apparatus 1002 includes a receiving component 1004, a determining component 1006 and / or a transmitting component 1008.
[0157] In some aspects, receiving component 1004 can receive multiple resource reservations indicating reservations for one or more resources. Determining component 1006 can determine whether there is a conflict between the multiple resource reservations. For example, receiving component 1004 can receive a first resource reservation indicating reservations for a first resource and a second resource. Receiving component 1004 can also receive a second resource reservation indicating reservations for a second resource and a third resource. Determining component 1006 can determine that a conflict exists for the second resource, that the second resource reservation should cancel transmissions in the second resource, and how (e.g., with what information, in what resource, in what format, etc.) to send the conflict indication, etc. Sending component 1008 can, at least in part, based on the determination of determining component 1006, send (e.g., broadcast, unicast, etc.) the indication to another UE 1050 (e.g., the UE 1050 associated with the second resource reservation).
[0158] In some respects, the transmitting component 1008 can transmit a resource reservation indicating a reservation for one or more resources. The transmitting component can transmit (e.g., broadcast, unicast, etc.) the resource reservation to one or more UEs 1050. For example, an apparatus 1000 including a first UE or a second UE can transmit a resource reservation.
[0159] The receiving component 1004 can receive an indication that at least one reserved resource has been reserved. For example, a device including a second UE can receive the indication that at least one reserved resource has been reserved. The indication may include an identifier of at least one resource, an identifier of the resource reservation, an identifier of the UE, etc. The determining component 1006 can determine, at least in part, the reserved resource to be cancelled in the resource reservation based on the indication. The transmitting component can transmit in any resource not indicated as conflicting with a previous reservation.
[0160] The device may include the function of the aforementioned. Figure 8 The process 800 Figure 9 The process 900 and other algorithms are additional components for each box. (The aforementioned...) Figure 8 The process 800 Figure 9 Each block in process 900, etc., can be executed by a component, and the apparatus can include one or more of these components. These components can be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored in a computer-readable medium for implementation by the processor, or some combination thereof.
[0161] The number and arrangement of components shown in Figure 1000 are provided as an example. In practice, there may be additional components, fewer components, different components, or different arrangements of components compared to those shown in Figure 1000. Furthermore, two or more components shown in Figure 1000 can be implemented within a single component, or a single component shown in Figure 1000 can be implemented as multiple distributed components. Additionally or alternatively, Figure 10 The set of components shown (e.g., one or more components) can perform actions described by Figure 10 The other set of components shown performs one or more functions.
[0162] The following provides an overview of some aspects of this disclosure:
[0163] Aspect 1: A wireless communication method performed by a first user equipment (UE), comprising: receiving from a second UE a resource reservation indicating a reservation for one or more resources; and transmitting an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including one or more of an identifier of the at least one resource, an identifier of the resource reservation, or an identifier of the second UE.
[0164] Aspect 2: According to the method of aspect 1, the transmission indication includes one or more of the following: transmitting the indication via one or more of a sidelink control information message, one or more media access control elements, or sidelink physical channel communication, transmitting the indication as a sequence-based indication of the at least one resource, or transmitting the indication as a sequence-based indication of resource reservation.
[0165] Aspect 3: According to the method of any one of Aspects 1-2, wherein the at least one resource is reserved by the UE or an additional UE.
[0166] Aspect 4: The method according to any one of Aspects 1-3, wherein the resource reservation instruction indicates the reservation of a resource that has not been reserved, and wherein the instruction includes an identifier of the at least one resource, rather than an identifier of the resource that has not been reserved.
[0167] Aspect 5: The method according to any one of Aspects 1-4 further includes: receiving, before receiving a resource reservation, a previous resource reservation indicating an additional reservation for the at least one resource, wherein the previous resource reservation has the same priority as the resource reservation or a higher priority than the resource reservation; or sending, before receiving a resource reservation, the previous resource reservation having the same priority as the resource reservation or a higher priority than the resource reservation.
[0168] Aspect 6: The method according to any one of aspects 1-5, wherein the indication includes the identifier of the at least one resource, and wherein the identifier of the at least one resource includes one or more of the following: an identifier of the frequency allocation of the physical side link control channel of the at least one resource, an identifier of the frequency allocation of the physical side link shared channel of the at least one resource, or an identifier of the time allocation of the at least one resource.
[0169] Aspect 7: The method according to any one of aspects 1-5, wherein the indication includes an identifier of resource reservation, and wherein the identifier of resource reservation includes one or more of the following: an indication of frequency allocation of a physical side link control channel associated with resource reservation, an indication of time allocation of a physical side link control channel associated with resource reservation, an indication of a portion of the resource reservation indicating the reservation of the at least one resource, or a coverage code index of a demodulation reference signal for resource reservation.
[0170] Aspect 8: According to the method of any one of Aspects 1-7, wherein the identifier of the second UE includes a source identifier of resource reservation, or wherein the indication includes one or more of the following: an indication of the priority of resource reservation, or an indication of the priority of a previous resource reservation for an additional reservation of at least one resource.
[0171] Aspect 9: The method according to any one of Aspects 1-8, wherein the transmission indication includes one or more of the following: a first indication associated with a first sub-channel of at least one resource in the transmission indication, or a second indication associated with a second sub-channel of at least one resource in the transmission indication, wherein transmitting the first indication includes: transmitting the first indication using a first set of resource blocks associated with the first sub-channel, transmitting the first indication using a first set of resource blocks associated with a sub-channel containing resource reservations, transmitting the second indication using a second set of resource blocks associated with the second sub-channel, or transmitting the second indication using a second set of resource blocks associated with a sub-channel containing resource reservations.
[0172] Aspect 10: According to the method of aspect 9, the first set of resource blocks is associated with the first sub-channel at least in part based on one or more of the locations of the first sub-channel or resource reservations.
[0173] Aspect 11: The method according to any one of Aspects 1-10, wherein at least in part, based on at least one of one or more resources overlapping with a resource associated with an additional resource reservation in one or more of time or frequency, and at least one of one or more resources conflicting with the additional resource reservation.
[0174] Aspect 12: An apparatus for wireless communication at a device, comprising a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more aspects of aspects 1-11.
[0175] Aspect 13: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the methods of one or more aspects of aspects 1-11.
[0176] Aspect 14: An apparatus for wireless communication, comprising at least one module for performing the methods of one or more aspects of aspects 1-11.
[0177] Aspect 15: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform methods of one or more aspects of aspects 1-11.
[0178] Aspect 16: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions, which, when executed by one or more processors of a device, cause the device to perform one or more methods of aspects 1-11.
[0179] The foregoing disclosure provides illustrations and descriptions, but is not intended to be exhaustive or to limit these aspects to the precise forms disclosed. Modifications and changes may be made based on the foregoing disclosure, or modifications and changes may be derived from practice in these aspects.
[0180] As used herein, the term "component" is intended to be interpreted broadly as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented as a combination of hardware, firmware, and / or hardware and software.
[0181] As used in this article, depending on the context, satisfying the threshold can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.
[0182] It is evident that the systems and / or methods described herein can be implemented using various forms of hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, this document describes the operation and behavior of the systems and / or methods without reference to specific software code, and it should be understood that software and hardware can be designed to implement the systems and / or methods, at least in part, based on the description herein.
[0183] Even if a particular combination of features is stated in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. In fact, many of these features can be combined in ways not specifically stated in the claims and / or not disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of aspects includes combinations of each dependent claim with every other claim in the claim set. The phrase referring to “at least one” of a series of items means any combination of these items, including single members. For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbb, bbc, cc, and cccc, or any other order of a, b, and c).
[0184] Unless explicitly stated otherwise, no element, action, or instruction used herein should be construed as critical or necessary. Furthermore, as used herein, the articles “a” and “one” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, a combination of related and unrelated items, etc.) and may be used interchangeably with “one or more.” If referring to only one item, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “have,” “possess,” “own,” and / or similar terms are intended to be open-ended terms. Additionally, the phrase “based on” is intended to mean “at least partially based on” unless explicitly stated otherwise.
Claims
1. A wireless communication method performed by a first user equipment (UE), comprising: In the side link control information message, the second UE receives a resource reservation indicating the reservation of one or more resources; as well as The indication of a conflict between at least one of one or more resources and an additional resource reservation is sent via sidelink physical channel communication and at least in part based on the received resource reservation, the indication including an identifier of the at least one resource, wherein the indication is sent among the resources determined at least in part based on the resource reservation.
2. The method of claim 1, wherein at least in part, at least one of the one or more resources overlaps with a resource associated with the additional resource reservation in one or more of the time or frequency, and the at least one of the one or more resources conflicts with the additional resource reservation.
3. The method of claim 1, wherein sending the instruction comprises one or more of the following: The indication is sent as a sequence-based indication of the at least one resource; or The indication is sent as a sequence-based indication of the resource reservation.
4. The method of claim 1, wherein the at least one resource is reserved by the UE or an additional UE.
5. The method of claim 1, wherein the resource reservation indicates the reservation of resources that have not been reserved, and The indicated feature includes the identifier of the at least one resource, rather than the identifier of a resource that has not been reserved.
6. The method according to claim 1, further comprising: Before receiving the resource reservation, receive a previous resource reservation indicating an additional reservation for the at least one resource; or Before receiving the resource reservation, send the previous resource reservation. The previous resource reservation has the same priority as the resource reservation or a higher priority.
7. The method according to claim 1, The identifier of the at least one resource includes one or more of the following: The identifier of the frequency allocation of the physical side link control channel of the at least one resource. The identifier of the frequency allocation of the physical side link shared channel of the at least one resource, or The identifier for the time allocation of the at least one resource.
8. The method of claim 1, wherein the indication further includes an identifier for the resource reservation, and The identifier for the resource reservation includes one or more of the following: An indication of frequency allocation for the physical side link control channel associated with the resource reservation. Indication of time allocation for the physical side link control channel associated with the resource reservation. The identifier indicates a portion of the resource reservation for the at least one resource, or Coverage code index used for the demodulation reference signal reserved for the resource.
9. The method of claim 1, wherein the identifier further includes the source identifier reserved for the resource, or The indicated means include one or more of the following: The indication of the priority of the resource reservation, or An indication of the priority of a previous resource reservation for an additional reservation of the at least one resource.
10. The method of claim 1, wherein sending the instruction comprises one or more of the following: Send the first indication associated with the first sub-channel of the at least one resource in the indication; and Send a second indication associated with the second sub-channel of the at least one resource in the indication. Sending the first instruction includes: The first instruction is sent using a first set of resource blocks associated with the first sub-channel. The first indication is sent using a first set of resource blocks associated with the sub-channel containing the resource reservation. The second instruction is sent using a second set of resource blocks associated with the second sub-channel, or The second instruction is sent using a second set of resource blocks associated with the sub-channel containing the resource reservation.
11. The method of claim 10, wherein the first set of resource blocks is associated with the first sub-channel at least in part with one or more of the following: The location of the first sub-channel, or The location reserved for the resources.
12. A first user equipment (UE) for wireless communication, comprising: One or more memory units; and One or more processors, operatively coupled to the one or more memories, the one or more processors being configured to: In the side link control information message, the second UE receives a resource reservation indicating the reservation of one or more resources; and The indication of a conflict between at least one of the one or more resources and an additional resource reservation is sent via sidelink physical channel communication and at least in part based on the received resource reservation, the indication including an identifier of the at least one resource, wherein the indication is sent among the resources determined at least in part based on the resource reservation.
13. The first UE of claim 12, wherein at least in part, the at least one of the one or more resources overlaps with a resource associated with the additional resource reservation in one or more times or frequencies, and the at least one of the one or more resources conflicts with the additional resource reservation.
14. The first UE of claim 12, wherein sending the indication comprises one or more of the following: The indication is sent as a sequence-based indication of the at least one resource; or The indication is sent as a sequence-based indication of the resource reservation.
15. The first UE according to claim 12, wherein the at least one resource is reserved by the first UE or an additional UE.
16. The first UE of claim 12, wherein the resource reservation indicates the reservation of resources that have not been reserved, and The indicated feature includes the identifier of the at least one resource, rather than the identifier of a resource that has not been reserved.
17. The first UE of claim 12, wherein the one or more processors are further configured to: Before receiving the resource reservation, receive a previous resource reservation indicating an additional reservation for the at least one resource, or Before receiving the resource reservation, send the previous resource reservation. The previous resource reservation has the same priority as the resource reservation or a higher priority.
18. The first UE according to claim 12, The identifier of the at least one resource includes one or more of the following: The identifier of the frequency allocation of the physical side link control channel of the at least one resource. The identifier of the frequency allocation of the physical side link shared channel of the at least one resource, or The identifier for the time allocation of the at least one resource.
19. The first UE of claim 12, wherein the indication further includes an identifier of the resource reservation, and The identifier for the resource reservation includes one or more of the following: An indication of frequency allocation for the physical side link control channel associated with the resource reservation. Indication of time allocation for the physical side link control channel associated with the resource reservation. The identifier indicates a portion of the resource reservation for the at least one resource, or Coverage code index used for the demodulation reference signal reserved for the resource.
20. The first UE according to claim 12, wherein the identifier further includes the source identifier reserved for the resource, or The indicated means include one or more of the following: The indication of the priority of the resource reservation, or An indication of the priority of a previous resource reservation for an additional reservation of the at least one resource.
21. The first UE of claim 12, wherein sending the indication comprises one or more of the following: Send the first indication associated with the first sub-channel of the at least one resource in the indication, and Send a second indication associated with the second sub-channel of the at least one resource in the indication. Sending the first instruction includes: The first indication is sent using a first set of resource blocks associated with the first sub-channel. The first indication is sent using a first set of resource blocks associated with the sub-channel containing the resource reservation. The second instruction is sent using a second set of resource blocks associated with the second sub-channel, or The second instruction is sent using a second set of resource blocks associated with the sub-channel containing the resource reservation.
22. The first UE of claim 21, wherein the first set of resource blocks is associated with the first sub-channel at least in part with one or more of the following: The position of the first sub-channel, or The location reserved for the resources.
23. A non-transitory computer-readable medium storing one or more instructions for wireless communication, said one or more instructions comprising: One or more instructions, when executed by one or more processors of a first user equipment (UE), cause the one or more processors to: In the side link control information message, the second UE receives a resource reservation indicating the reservation of one or more resources; and The indication of a conflict between at least one of the one or more resources and an additional resource reservation is sent via sidelink physical channel communication and at least in part based on the received resource reservation, the indication including an identifier of the at least one resource, wherein the indication is sent among the resources determined at least in part based on the resource reservation.
24. The non-transitory computer-readable medium of claim 23, wherein sending the instruction comprises one or more of the following: The indication is sent as a sequence-based indication of the at least one resource, or The indication is sent as a sequence-based indication of the resource reservation.
25. The non-transitory computer-readable medium according to claim 23, The identifier of the at least one resource includes one or more of the following: The identifier of the frequency allocation of the physical side link control channel of the at least one resource. The identifier of the frequency allocation of the physical side link shared channel of the at least one resource, or The identifier for the time allocation of the at least one resource.
26. The non-transitory computer-readable medium of claim 23, wherein the indication further includes an identifier of resource reservation, and The identifier for the resource reservation includes one or more of the following: An indication of frequency allocation for the physical side link control channel associated with the resource reservation. Indication of time allocation for the physical side link control channel associated with the resource reservation. The identifier indicates a portion of the resource reservation for the at least one resource, or Coverage code index used for the demodulation reference signal reserved for the resource.
27. An apparatus for wireless communication, comprising: A device module for receiving, in a side link control information message, an indication of the reservation of one or more resources from the UE; and An apparatus module for communicating via a sidelink physical channel and for sending, at least in part based on receiving the resource reservation, an indication that at least one of the one or more resources conflicts with an additional resource reservation, the indication including an identifier of the at least one resource, wherein the indication is sent among resources determined at least in part based on the resource reservation.
28. The apparatus of claim 27, wherein the apparatus module for transmitting the instruction comprises one or more of the following: A device module for receiving the indication as a sequence-based indication of the at least one resource; or A device module for receiving the indication as a sequence-based indication of the resource reservation.
29. The apparatus according to claim 27, The identifier of the at least one resource includes one or more of the following: The identifier of the frequency allocation of the physical side link control channel of the at least one resource. The identifier of the frequency allocation of the physical side link shared channel of the at least one resource, or The identifier for the time allocation of the at least one resource.
30. The apparatus according to claim 27, The identifier for the resource reservation includes one or more of the following: An indication of frequency allocation for the physical side link control channel associated with the resource reservation. Indication of time allocation for the physical side link control channel associated with the resource reservation. The identifier indicates a portion of the resource reservation for the at least one resource, or Coverage code index used for the demodulation reference signal reserved for the resource.