Legacy control channel format support

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a control channel message encoded according to a first format, the first format being associated with a shared data channel parameter set different from a second format supported by the UE. The second format is a conventional format relative to the first format. The UE may also determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format. The UE may select one or more resources for transmission based at least in part on information included in the control channel message. Several other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 024,876, filed on May 14, 2020, entitled “LEGACY CONTROL CHANNEL FORMAT SUPPORT,” and U.S. Non-Provisional Patent Application No. 17 / 302,811, filed on May 12, 2021, entitled “LEGACY CONTROL CHANNEL FORMAT SUPPORT,” which are hereby expressly incorporated herein by reference. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for supporting legacy control channel formats. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). 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 set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0005] A wireless network may include several base stations (BSs) that can support communications for several user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A "downlink" (or forward link) refers to a communication link from a BS to a UE, and an "uplink" (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at the city, country, region, and even global level. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also referred to as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), so as to better support mobile broadband Internet access, as well as support beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. As the demand for mobile broadband access continues to grow, there is a need for further improvement of LTE, NR and other wireless access technologies. Summary of the invention

[0007] In some aspects, a wireless communication method performed by a user equipment (UE) includes: receiving a control channel message encoded according to a first format, the first format being associated with a shared data channel (SCH) parameter set that is different from a second format supported by the UE, wherein the second format is a legacy format relative to the first format; determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format; and when the control channel message is encoded according to the first format, selecting one or more resources for transmission based at least in part on information included in the control channel message.

[0008] In some aspects, a wireless communication method performed by a UE includes: monitoring a resource set based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of the following: a common resource pool for a first UE set supporting an SCH parameter set and a second UE set supporting an appropriate subset of the SCH parameter set, or a first resource pool for the first UE set and a second resource pool for the second UE set, wherein the first resource pool is separate from the second resource pool; and selecting one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based at least in part on the monitoring resource set.

[0009] In some aspects, a UE for wireless communication includes a memory and one or more processors coupled to the memory. The memory and the one or more processors are configured to: receive a control channel message encoded according to a first format, the first format being associated with a different set of SCH parameters than a second format supported by the UE, wherein the second format is a legacy format relative to the first format; determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format; and when encoding the control channel message according to the first format, select one or more resources for transmission based at least in part on information included in the control channel message.

[0010] In some aspects, a UE for wireless communication includes a memory and one or more processors coupled to the memory. The memory and the one or more processors are configured to: monitor a resource set based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of: a common resource pool for a first set of UEs supporting a set of SCH parameters and a second set of UEs supporting an appropriate subset of the set of SCH parameters, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool; and select one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based at least in part on the monitored resource set.

[0011] In some aspects, a non-transitory computer-readable medium stores one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, cause the UE to: receive a control channel message encoded according to a first format, the first format being associated with a different set of SCH parameters than a second format supported by the UE, wherein the second format is a legacy format relative to the first format; determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format; and when the control channel message is encoded according to the first format, select one or more resources for transmission based at least in part on information included in the control channel message.

[0012] In some aspects, a non-transitory computer-readable medium stores one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, cause the UE to: monitor a resource set based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of: a common resource pool for a first set of UEs supporting a set of SCH parameters and a second set of UEs supporting an appropriate subset of the set of SCH parameters, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool; and select one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based at least in part on the monitored resource set.

[0013] In some aspects, an apparatus for wireless communication includes: components for receiving a control channel message encoded according to a first format, the first format being associated with a set of SCH parameters that is different from a second format supported by a UE, wherein the second format is a legacy format relative to the first format; components for determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format; and components for selecting one or more resources for transmission based at least in part on information included in the control channel message when encoding the control channel message according to the first format.

[0014] In some aspects, an apparatus for wireless communication includes: a component for monitoring a resource set based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of the following: a common resource pool for a first UE set supporting a SCH parameter set and a second UE set supporting an appropriate subset of the SCH parameter set, or a first resource pool for the first UE set and a second resource pool for the second UE set, wherein the first resource pool is separate from the second resource pool; and a component for selecting one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based at least in part on the monitoring resource set.

[0015] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to and as illustrated by the accompanying drawings and description.

[0016] The foregoing has been fairly broadly outlined according to the features and technical advantages of the examples of the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as the basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and methods of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and is not intended to be a definition of limitations to the claims.

[0017] Although various aspects are described in the present disclosure by the description of some examples, it will be understood by those skilled in the art that these aspects can be implemented in many different arrangements and situations. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment, or devices that enable artificial intelligence). Various aspects can be implemented in chip-level components, module components, non-module components, non-chip-level components, device-level components, or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include several components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements, or end-user devices of various sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to fully understand the above features of the present disclosure, a more specific description of the content briefly summarized above can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only show certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2 is a diagram showing an example in which a base station and a user equipment (UE) are in communication in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example of side link communication according to the present disclosure.

[0022] Figure 4 is a diagram showing an example of side link communication and access link communication according to the present disclosure.

[0023] Figure 5 is a diagram illustrating an example of resource collision for messages having different control channel formats according to the present disclosure.

[0024] Figure 6 is a diagram illustrating an example of avoiding resource conflicts for messages having different control channel formats according to the present disclosure.

[0025] Figure 7 is a diagram illustrating an example of a common resource pool for messages having different control channel formats according to the present disclosure.

[0026] Figure 8 is a diagram showing an example of resource pools divided in the frequency domain for messages having different control channel formats according to the present disclosure.

[0027] Fig. 9 is a diagram showing an example of a resource pool divided in a time domain for messages having different control channel formats according to the present disclosure.

[0028] Fig.10 is a diagram illustrating an example process performed by a UE according to the present disclosure.

[0029] Fig.11 is a diagram illustrating another example process performed by a UE according to the present disclosure. DETAILED DESCRIPTION

[0030] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and it will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods practiced using supplements or other other structures, functionality, or structures and functionality as the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein may be implemented by one or more elements of the claims.

[0031] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0032] It should be noted that although various aspects may be described herein using terminology associated with 5G or NR radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs after 5G (e.g., 6G).

[0033] Figure 1 is a diagram showing an example of a wireless network 100 according to various aspects of the present disclosure. The wireless network 100 may be or may include a 5G (NR) network, an LTE network, and the like. The wireless network 100 may include several base stations 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, a B node, a gNB, a 5G B node (NB), an access point, a transmit receive point (TRP), and the like. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0034] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "B node", "5G NB", and "cell" may be used interchangeably herein.

[0035] In some aspects, the cells may not necessarily be fixed, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network through various types of backhaul interfaces (such as direct physical connections, virtual networks).

[0036] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in FIG. 1 , a relay station 110 d may communicate with a macro BS 110 a and a UE 120 d in order to facilitate communication between the BS 110 a and the UE 120 d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0037] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0038] The network controller 130 may be coupled to the set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with each BS via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0039] UE 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smart phone), 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, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, 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, an industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0040] Some UEs may be considered as machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a base station, another device (e.g., a remote device) or some other entity. A wireless node may provide connectivity or connectivity to a network (e.g., a wide area network (such as the Internet) or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as client equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0041] Generally, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific RAT and may operate on one or more frequencies. RAT may also be referred to as radio technology, air interface, etc. Frequency may also be referred to as carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0042] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 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 or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0043] The devices of the wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, frequency bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 can communicate using an operating band having a first frequency range (FR1), which can span 410 MHz to 7.125 GHz, and / or can communicate using an operating band having a second frequency range (FR2), which can span 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise specifically stated, it should be understood that the term "sub-6 GHz" and the like (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specifically stated, it should be understood that the term "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0044] As mentioned above, Figure 1 are provided as examples. Other examples may differ from those described in Figure 1 Examples described.

[0045] Figure 2 is a diagram illustrating an example 200 of a base station 110 and a UE 120 in communication in a wireless network according to various aspects of the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0046] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols when applicable, and may provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may 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 may be transmitted via T antennas 234a to 234t, respectively.

[0047] At the UE 120, antennas 252a to 252r may receive downlink signals from the base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols when applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0048] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0049] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included in, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antennas coupled to one or more transmitting and / or receiving components (such as Figure 2 One or more antenna elements of one or more components).

[0050] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, as applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antenna(s) 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform the functions described herein (e.g., with reference to Figure 6-Figure 11 )Aspects of any of the methods described herein.

[0051] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 when applicable, and further processed by the receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antenna(s) 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform the operations described herein (e.g., with reference to Figure 6-Figure 11 )Aspects of any of the methods described herein.

[0052] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the base station 110 may perform one or more techniques associated with supporting legacy control channel formats, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) may perform or direct e.g. Fig.10 The process of 1000 Fig.11 1100, and / or operations of other processes as described herein. Memories 242 and 282 may store data and program codes for 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 (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause one or more processors, UE 120, and / or base station 110 to perform or direct, for example Fig.10 The process of 1000 Fig.11 The process 1100 of , and / or operations of other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, interpreting instructions, and the like.

[0053] In some aspects, a UE (e.g., UE 120) may include: means for receiving a control channel message encoded according to a first format, the first format being associated with a shared data channel (SCH) parameter set different from a second format supported by the UE, wherein the second format is a legacy format relative to the first format; means for determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format; and / or means for selecting one or more resources for transmission based at least in part on information included in the control channel message when the control channel message is encoded according to the first format. Means for the UE to perform operations described herein may include, for example, one or more of the antenna 252, the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the modulator 254, the controller / processor 280, or the memory 282.

[0054] Additionally or alternatively, the UE 120 may include: a component for monitoring a resource set based at least in part on a resource pool configuration by the UE, wherein the resource pool configuration indicates one of: a common resource pool for a first set of UEs supporting a set of SCH parameters and a second set of UEs supporting an appropriate subset of the set of SCH parameters, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool; and / or a component for selecting one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based at least in part on the monitoring resource set. The components for the UE to perform the operations described herein may include, for example, one or more of the antenna 252, the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the modulator 254, the controller / processor 280, or the memory 282.

[0055] Although Figure 2 The blocks in the 200 and 210 are shown as distinct components, but the functionality described above with respect to the blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0056] As mentioned above, Figure 2 are provided as examples. Other examples may differ from those described in Figure 2 Examples described.

[0057] Figure 3 is a diagram illustrating an example 300 of a radio access network according to aspects of the present disclosure. Figure 3As shown, the first UE 305-1 can communicate with the second UE 305-2 (and one or more other UEs 305) via one or more side link channels 310. UEs 305-1 and 305-2 can communicate using one or more side link channels 310 for P2P communication, D2D communication, V2X communication (e.g., which may include V2V communication, V2I communication and / or vehicle-to-pedestrian (V2P) communication) and / or mesh networking. In some aspects, UE 305 (e.g., UE 305-1 and / or UE 305-2) can correspond to one or more other UEs described elsewhere herein, such as UE 120. In some aspects, one or more side link channels 310 can use a PC5 interface and / or can operate in a high frequency band (e.g., a 5.9 GHz band). Additionally or alternatively, UE 305 can use global navigation satellite system (GNSS) timing to synchronize the timing of a transmission time interval (TTI) (e.g., a frame, subframe, time slot, or symbol).

[0058] like Figure 3 As further shown in FIG. 1 , one or more sidelink channels 310 may include a physical sidelink control channel (PSCCH) 315, a physical sidelink shared channel (PSSCH) 320, and / or a physical sidelink feedback channel (PSFCH) 325. PSCCH 315 may be used to communicate control information, similar to a physical downlink control channel (PDCCH) and / or a physical uplink control channel (PUCCH) used for cellular communication with base station 110 via an access link or access channel. PSSCH 320 may be used to transmit data, similar to a physical downlink shared channel (PDSCH) and / or a physical uplink shared channel (PUSCH) used for cellular communication with base station 110 via an access link or access channel. For example, PSCCH 315 may carry sidelink control information (SCI) 330, which may indicate various control information for sidelink communication, such as one or more resources (e.g., time resources, frequency resources, and / or space resources) on which a transport block (TB) 335 may be carried on PSSCH 320. TB 335 may include data. The PSFCH 325 may be used for communication sidelink feedback 340, such as hybrid automatic repeat request (HARD) feedback (eg, acknowledgement or negative acknowledgement (ACK / NACK) information), transmit power control (TPC), and / or scheduling request (SR).

[0059] Although shown on PSCCH 315, in some aspects SCI 330 may include multiple communications in different phases, such as a first phase SCI (SCI-1) and a second phase SCI (SCI-2). SCI-1 may be sent on PSCCH 315. SCI-2 may be sent on PSSCH 320. SCI-1 may include, for example, an indication of one or more resources (e.g., time resources, frequency resources, and / or space resources) on PSSCH 320, information for decoding sidelink communications on PSSCH, a quality of service (QoS) priority value, a resource reservation period, a PSSCH demodulation reference signal (DMRS) pattern, an SCI format for SCI-2, a beta offset for SCI-2, a number of PSSCH DMRS ports, and / or an MCS. SCI-2 may include information associated with data transmission on the PSSCH 320, such as a hybrid automatic repeat request (HARQ) process ID, a new data indicator (NDI), a source identifier, a destination identifier, and / or a channel state information (CSI) report trigger.

[0060] In some aspects, one or more sidelink channels 310 may use a resource pool. For example, a scheduling assignment (e.g., included in SCI 330) may be sent in a subchannel using specific resource blocks (RBs) across time. In some aspects, a data transmission associated with a scheduling assignment (e.g., on PSSCH 320) may occupy adjacent RBs in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing). In some aspects, the scheduling assignment and the associated data transmission are not sent on adjacent RBs.

[0061] In some aspects, the UE 305 may operate using a transmission mode in which resource selection and / or scheduling is performed by the UE 305 (e.g., rather than the base station 110). In some aspects, the UE 305 may perform resource selection and / or scheduling by sensing channel availability for transmission. For example, the UE 305 may measure RSSI parameters associated with various sidelink channels (e.g., sidelink-RSSI (S-RSSI) parameters), may measure RSRP parameters associated with various sidelink channels (e.g., PSSCH-RSRP parameters), and / or may measure RSRQ parameters associated with various sidelink channels (e.g., PSSCH-RSRQ parameters), and may select a channel for transmitting sidelink communications based at least in part on the measurements.

[0062] Additionally or alternatively, the UE 305 may perform resource selection and / or scheduling using the SCI 330 received in the PSCCH 315, which may indicate occupied resources and / or channel parameters. Additionally or alternatively, the UE 305 may perform resource selection and / or scheduling by determining a channel busy rate (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating a maximum number of resource blocks that the UE 305 may use for a particular set of subframes).

[0063] In a transmission mode in which resource selection and / or scheduling is performed by the UE 305, the UE 305 may generate a sidelink grant and may send the grant in the SCI 330. The sidelink grant may indicate, for example, one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks to be used for an upcoming sidelink transmission (e.g., for TB 335) on the PSSCH 320, one or more subframes to be used for the upcoming sidelink transmission, and / or an MCS to be used for the upcoming sidelink transmission. In some aspects, the UE 305 may generate a sidelink grant indicating one or more parameters for semi-persistent scheduling (SPS), such as the periodicity of the sidelink transmission. Additionally or alternatively, the UE 305 may generate a sidelink grant for event-driven scheduling, such as for an on-demand sidelink message.

[0064] As mentioned above, Figure 3 are provided as examples. Other examples may differ from those described in Figure 3 Examples described.

[0065] Figure 4 4 is a diagram illustrating an example 400 of side link communications and access link communications according to the present disclosure. Figure 4 As shown, the transmitter (Tx) / receiver (Rx) UE 405 and the Rx / Tx UE 410 can communicate with each other via a side link, as described above in conjunction with Figure 3 As further shown, in some sidelink modes, the base station 110 may communicate with the Tx / Rx UE 405 via a first access link. Additionally or alternatively, in some sidelink modes, the base station 110 may communicate with the Rx / Tx UE 410 via a second access link. The Tx / Rx UE 405 and / or the Rx / Tx UE 410 may correspond to one or more UEs described elsewhere herein, such as Figure 1120. Thus, a direct link between UEs 120 (e.g., via a PC5 interface) may be referred to as a side link, and a direct link between base station 110 and UE 120 (e.g., via a Uu interface) may be referred to as an access link. Side link communications may be sent via a side link, and access link communications may be sent via an access link. Access link communications may be downlink communications (from base station 110 to UE 120) or uplink communications (from UE 120 to base station 110).

[0066] As mentioned above, Figure 4 are provided as examples. Other examples may differ from those described in Figure 4 Examples described.

[0067] Figure 5 5 is a diagram illustrating an example 500 of resource collision for messages having different control channel formats according to the present disclosure. Figure 5 As shown, the UE may monitor messages within a sensing window 505. The sensing window 505 may span a portion of the time domain (e.g., represented as subframe (n-1000) to subframe (n-1) in example 500, where n may represent the current subframe) and a portion of the frequency domain (also referred to as a subchannel domain). In some aspects, the UE may use RSSI sensing within the sensing window 505.

[0068] like Figure 5 As further shown in FIG. 5 , the UE may select a resource for transmission from resource selection candidates 510. For example, the UE may select a resource in response to detecting a message within sensing window 505. Thus, the UE may grant the selected resource to another device (such as another UE) for use (e.g., as described above in conjunction with Figure 3-Figure 4 ) transmission on the sidelink channel as described. For example, the UE may send a grant to the other device at a subframe represented by n for a resource selected within the resource selection candidate 510. Similar to the sensing window 505, the resource selection candidate 510 may span a portion of the time domain (e.g., represented as subframe (n+T1) to subframe (n+T2) in example 500, where T1 may represent an offset associated with a resource request from the other device, and T2 may represent a length associated with the resource selection candidate 510 relative to T1) and a portion of the frequency domain.

[0069] In some aspects, the UE may determine resource selection candidates 510 based at least in part on applying resource exclusion based at least in part on control channel (CCH) information included in a message detected within the sensing window 505. For example, Figure 5As shown, the UE may use the SPS period, the priority value, the resource reservation protocol (RSVP) value, and / or another parameter indicated by the CCH information to exclude one or more resources from the resource selection candidates 510. Thus, the UE may prevent resource collisions for further transmissions on the CCH and / or the SCH associated with the CCH information.

[0070] like Figure 5 As further shown in , the UE may support a second format for encoding CCH information. For example, the second format may be a legacy format relative to the first format. In some aspects, the first format may be defined within a first standard, and the second format may be defined within a second standard. Thus, in some aspects, the second standard may be a legacy standard relative to the first standard. For example, the first standard and the second standard may be defined by a 3GPP specification and / or other standard documents. For example, the first standard may be defined in a first version of a 3GPP specification (such as Release 15), and the second standard may be defined in a second version of a 3GPP specification (such as Release 14), the second version being a legacy version relative to the first version.

[0071] In some aspects, the first standard may support at least one modulation technique that is not supported by the second standard. For example, the first standard may support 64 quadrature amplitude modulation (QAM) and / or another modulation technique that the second standard does not support. In some aspects, the first standard and the second standard may additionally support at least one modulation technique in common, for example, quadrature phase shift keying (QPSK) modulation, 16QAM, and / or another modulation technique.

[0072] like Figure 5 As shown, the UE may support the second standard but not the first standard. Therefore, when encoding a message according to the first format, the UE may discard the CCH information included in the message detected within the sensing window 505. Additionally or alternatively, the first format may be associated with a SCH parameter set that is different from the second format. For example, different SCH parameter sets may include different MCS tables, different TB size (TBS) mapping rules, and / or another different parameter. In some aspects, different SCH parameter sets may enable a first UE set to support a SCH parameter set, and a second UE set to support an appropriate subset of the SCH parameter set. Therefore, the UE in example 500 may belong to a second UE set, so that when encoding a message according to the first format, the UE discards the CCH information included in the message detected within the sensing window 505.

[0073] However, by discarding the CCH information, the UE may select one or more resources in resource selection candidates 510 that conflict with further transmissions on the CCH and / or SCH associated with the CCH information. In example 500, the UE sends a grant to another device for resources that conflict with transmissions on the CCH and / or associated SCH.

[0074] Thus, example 500 illustrates that a UE may cause resource conflicts when granting resources for transmission in response to CCH information encoded according to a newer format that is not supported by the UE. Figure 5 The resource conflicts described in the above may occur in any UE communication (including with a base station (e.g., as described above in conjunction with Figure 1-Figure 2 described) and / or with other UEs (e.g., as described above in conjunction with Figure 3-Figure 4 For example, Figure 5 The illustrated conflict may occur during V2X communications in a cellular environment (also referred to as C-V2X communications).

[0075] As mentioned above, Figure 5 are provided as examples. Other examples may differ from those described in Figure 5 Examples described.

[0076] Some techniques and apparatus of the present disclosure enable a UE (e.g., UE 120 and / or UE 305) to avoid resource conflicts caused by CCH information encoded according to a newer format that is not supported by UE 120 (e.g., as Figure 5 ). For example, the techniques and apparatus described herein enable UE 120 to decode CCH information encoded according to a newer format that is not supported by UE 120, and to apply resource exclusion based at least in part on the decoded CCH information. Thus, UE 120 avoids resource conflicts, which improves the quality and / or reliability of communications with UE 120. UE 120 also saves processing resources, network resources, and power by reducing the chance of retransmissions necessitated by low quality and / or reliability of initial transmissions. Additionally or alternatively, the techniques and apparatus described herein enable UE 120 to use resource pools of newer and legacy formats for avoiding resource conflicts, which improves the quality and / or reliability of communications with UE 120. UE 120 also saves processing resources, network resources, and power by reducing the chance of retransmissions necessitated by low quality and / or reliability of initial transmissions.

[0077] Figure 6 6 is a diagram illustrating an example 600 of avoiding resource conflicts for messages having different control channel formats according to the present disclosure. Figure 6 As shown, UE (eg, Figure 3UE 120, UE 305-1 and / or UE 305-2, and / or Figure 4 UE 120 and / or UE 410) may monitor messages within a sensing window 605. Sensing window 605 may span a portion of a time domain (e.g., represented as subframe (n-1000) to subframe (n-1) in example 600, where n may represent a current subframe) and a portion of a frequency domain. In some aspects, UE 120 may use RSSI sensing within sensing window 605.

[0078] like Figure 6 As further shown in FIG. 6 , UE 120 may select a resource for transmission from resource selection candidates 610. For example, UE 120 may select a resource in response to detecting a message within sensing window 605. Thus, UE 120 may grant the selected resource to another device (such as another UE) for use (e.g., as described above in conjunction with Figure 3-Figure 4 ) transmission on the sidelink channel as described. For example, the UE may send a grant to the other device at a subframe represented by n for a resource selected within the resource selection candidate 610. Similar to the sensing window 605, the resource selection candidate 610 may span a portion of the time domain (e.g., represented as subframe (n+T1) to subframe (n+T2) in example 600, where T1 may represent an offset associated with a resource request from the other device and T2 may represent a length associated with the resource selection candidate 610 relative to T1) and a portion of the frequency domain.

[0079] In some aspects, UE 120 may determine resource selection candidates 610 based at least in part on applying resource exclusion based at least in part on CCH information included in a message detected within sensing window 605. For example, Figure 6 As shown, UE 120 may use the SPS period, priority value, RSVP value, and / or another parameter indicated by the CCH information to exclude one or more resources from resource selection candidates 610. Thus, UE 120 may prevent resource collisions for further transmissions on the CCH and / or the SCH associated with the CCH information.

[0080] like Figure 6As further shown in , UE 120 may support a second format for encoding CCH information. For example, the second format may be a legacy format relative to the first format. In some aspects, the first format may be defined within a first standard, and the second format may be defined within a second standard. Thus, in some aspects, the second standard may be a legacy standard relative to the first standard. For example, the first standard and the second standard may be defined by a 3GPP specification and / or other standard documents. For example, the first standard may be defined in a first version of a 3GPP specification (such as Release 15), and the second standard may be defined in a second version of a 3GPP specification (such as Release 14), the second version being a legacy version relative to the first version.

[0081] In some aspects, the first standard may support at least one modulation technique that is not supported by the second standard. For example, the first standard may support 64QAM and / or another modulation technique, while the second standard does not support it. In some aspects, the first standard and the second standard may additionally support at least one modulation technique in common, such as QPSK modulation, 16QAM and / or another modulation technique.

[0082] like Figure 6 As further shown in , UE 120 may support the second standard but not the first standard. Therefore, UE 120 may receive a control channel message encoded according to the first format (e.g., during sensing window 605). As described above, the second format may be a conventional format relative to the first format. Additionally or alternatively, the control channel message may be associated with a SCH parameter set different from the second format supported by UE 120. For example, different SCH parameter sets associated with the first format may include different MCS tables, different TBS mapping rules, and / or another different parameter. Different SCH parameter sets may enable a first UE set to support a SCH parameter set and a second UE set to support an appropriate subset of the SCH parameter set. The UE in example 600 may belong to a second UE set. Therefore, when a message is encoded according to the first format, UE 120 may use the techniques described herein to decode CCH information included in a message detected within sensing window 605.

[0083] Rather than discarding the control channel message, the UE 120 may determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format. For example, the UE 120 may compare the transport format bit value of the control channel message with the expected transport format bit value defined by the first format. In some aspects, the transport format bit value may be in a bit position corresponding to a reserved bit defined by the second format, and the reserved bit may be defined as zero by the second format. For example, the UE 120 may determine that the expected transport format bit value is set to "1" consistent with the first format and is located in one of a plurality of reserved bit positions that are expected to have a bit value of "0" when encoded according to the second format.

[0084] Therefore, and as Figure 6 , when the control channel message is encoded according to the first format, the UE 120 may select one or more resources for transmission based at least in part on the information included in the control channel message. For example, the UE 120 may apply RSRP exclusion based at least in part on the information included in the control channel message. Alternatively, the information included in the control channel message may be consistent with both the first format and the second format, such that after determining that the control channel message is encoded according to the first format, the UE 120 is able to decode the information instead of discarding the control channel message.

[0085] In some aspects, the information included in the control channel message may include priority information, resource reservation information, and / or other information. Thus, as described above, the UE 120 may use the SPS period, priority value, RSVP value, and / or another parameter included in the information to exclude one or more resources from the resource selection candidates 610, such as Figure 6 shown.

[0086] By applying such Figure 6 By eliminating the resource exclusion described above, UE 120 reduces signal interference and improves the reliability and / or quality of communication. For example, UE 120 can improve communication with a base station (e.g., as described above in conjunction with Figure 1-Figure 2 described) and / or with other UEs (e.g., as described above in conjunction with Figure 3-Figure 4 In some aspects, UE 120 may improve the reliability and / or quality of C-V2X communications.

[0087] As mentioned above, Figure 6 are provided as examples. Other examples may differ from those described in Figure 6 Examples described.

[0088] Figure 7 700 is a diagram illustrating an example of a common resource pool for messages with different control channel formats according to the present disclosure. In example 700, a UE (e.g., Figure 3 UE 120, UE 305-1 and / or UE 305-2, and / or Figure 4 UE 405 and / or UE 410) may monitor the resource set based at least in part on the resource pool configuration. Figure 7 As shown, the resource pool configuration may indicate a common resource pool 705 (eg, common to a first set of UEs supporting a first format and a second set of UEs supporting a second format, wherein the second format is a legacy format relative to the first format).

[0089] In some aspects, the common resource pool 705 may be configured (e.g., by a base station (such as base station 110) and / or in accordance with a 3GPP specification and / or another standard) for a first set of UEs supporting a set of SCH parameters and a second set of UEs supporting a suitable subset of the set of SCH parameters. For example, the set of SCH parameters may include a different MCS table that is excluded from the suitable subset of the set of SCH parameters, a different TBS mapping rule, and / or another different parameter.

[0090] Additionally or alternatively, the first UE set may support the first standard and the second standard, and the second UE set may support the second standard and not support the first standard. For example, the second standard may be a legacy standard relative to the first standard. The first standard and the second standard may be defined within a 3GPP specification and / or other standard documents. For example, the first standard may be defined in a first version of the 3GPP specification (such as version 15), and the second standard may be defined in a second version of the 3GPP specification (such as version 14), the second version being a legacy version relative to the first version. Additionally or alternatively, the first standard may support at least one modulation technique that is not supported by the second standard. For example, the first standard may support 64QAM and / or another modulation technique, while the second standard does not support it. In some aspects, the first standard and the second standard may additionally support at least one common modulation technique, such as QPSK modulation, 16QAM and / or another modulation technique.

[0091] UE 120 may monitor a set of resources within common resource pool 705 by applying RSSI sensing based at least in part on the resource pool configuration. Thus, UE 120 may use common resource pool 705 for reception (Rx). For example, UE 120 may apply RSSI sensing to one or more resources within common resource pool 705. UEs supporting the first format may similarly use common resource pool 705 for reception (Rx), such as Figure 7 shown.

[0092] like Figure 7 As further shown in FIG. 1 , UE 120 may select one or more resources from common resource pool 705 for transmission based at least in part on the monitored resource set. Thus, UE 120 may use common resource pool 705 for transmission (Tx). UEs supporting the first format may similarly use common resource pool 705 for transmission (Tx), such as Figure 7 shown.

[0093] In some aspects, the UE 120 may receive a control channel message (e.g., as described above, while monitoring a resource set) and apply RSRP exclusion based at least in part on information included in the control channel message. Accordingly, the UE 120 may select one or more resources for transmission from the common resource pool 705 based at least in part on applying RSRP exclusion. In example 700, the UE 120 selects resources within a subframe denoted by m for transmission, while the UE supporting the first format selects resources within a subframe denoted by n for transmission.

[0094] Figure 7 The example 700 can be used with Figure 6 For example, as described above, UE 120 may receive a control channel message while monitoring a resource set. The control channel message may be encoded according to a first format. Accordingly, UE 120 may, based at least in part on information included in the control channel message encoded according to the first format, Figure 7 One or more resources (e.g., as described above in conjunction with Figure 6 described).

[0095] For example, based at least in part on receiving the control channel message, UE 120 may determine to encode the control channel message according to the first format (e.g., as described above in conjunction with the first format) based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a set of bits defined by the second format supported by the second set of UEs with one or more expected bit values ​​defined by the first format. Figure 6 Thus, when the control channel message is encoded according to the first format, the UE 120 may select one or more resources for transmission based at least in part on the information included in the control channel message. For example, the UE 120 may use the information to select one or more resources from the common resource pool 705.

[0096] By using such as combining Figure 7The common resource pool described above can reduce signal interference and improve the reliability and / or quality of communication for UE 120. For example, UE 120 can improve communication with a base station (e.g., as described above in conjunction with Figure 1-Figure 2 described) and / or with other UEs (e.g., as described above in conjunction with Figure 3-Figure 4 In some aspects, UE 120 may improve the reliability and / or quality of C-V2X communications.

[0097] As mentioned above, Figure 7 are provided as examples. Other examples may differ from those described in Figure 7 Examples described.

[0098] Figure 8 8 is a diagram illustrating an example 800 of resource pools partitioned in the frequency domain for messages with different control channel formats according to the present disclosure. In example 800, a UE (e.g., Figure 3 UE 120, UE 305-1 and / or UE 305-2, and / or Figure 4 UE 405 and / or UE 410) may monitor a resource set based at least in part on resource pool configuration 805. Figure 8 As shown, resource pool configuration 805 may indicate a first resource pool 810 configured (e.g., by a base station (such as base station 110) and / or in accordance with a 3GPP specification and / or another standard) for a first set of UEs supporting a SCH parameter set, and a second resource pool 815 configured (e.g., by base station 110 and / or in accordance with a 3GPP specification and / or another standard) for a second set of UEs (including UE 120) supporting an appropriate subset of the SCH parameter set. For example, the SCH parameter set may include a different MCS table, a different TBS mapping rule, and / or another different parameter that is excluded from the appropriate subset of the SCH parameter set.

[0099] Additionally or alternatively, the first UE set may support the first standard and the second standard, and the second UE set may support the second standard and not support the first standard. For example, the second standard may be a legacy standard relative to the first standard. The first standard and the second standard may be defined within a 3GPP specification and / or other standard documents. For example, the first standard may be defined in a first version of the 3GPP specification (such as version 15), and the second standard may be defined in a second version of the 3GPP specification (such as version 14), the second version being a legacy version relative to the first version. Additionally or alternatively, the first standard may support at least one modulation technique that is not supported by the second standard. For example, the first standard may support 64QAM and / or another modulation technique, while the second standard does not support it. In some aspects, the first standard and the second standard may additionally support at least one common modulation technique, such as QPSK modulation, 16QAM and / or another modulation technique.

[0100] like Figure 8 As shown, UE 120 may use the second resource pool 815 to receive (Rx) messages encoded according to the second format. Accordingly, UE 120 may monitor the resource set by applying RSSI sensing based at least in part on the resource pool configuration 805. For example, UE 120 may apply RSSI sensing to one or more resources within the second resource pool 815. In example 800, UE 120 monitors the subframes represented by m within the second resource pool 815 to receive messages encoded according to the second format. Similarly, a UE supporting the first format may use the first resource pool 810 to receive (Rx) messages encoded according to the first format. In example 800, a UE supporting the first format monitors the subframes represented by m within the first resource pool 810 to receive messages encoded according to the first format. Therefore, in some aspects, and as Figure 8 As shown, the first resource pool 810 may be separated from the second resource pool 815 in the frequency domain.

[0101] like Figure 8 As further shown in FIG. 1 , UE 120 may select one or more resources for transmission from second resource pool 815 based at least in part on the monitored resource set. Thus, UE 120 may use second resource pool 815 for transmission (Tx). By avoiding transmissions in first resource pool 810, UE 120 may avoid interfering with transmissions encoded according to the first format. UEs supporting the first format may similarly use first resource pool 810 for transmission (Tx), as shown in FIG. Figure 8 By avoiding transmissions in the second resource pool 815, UEs supporting the first format may avoid interference with transmissions encoded according to the second format.

[0102] In some aspects, the UE 120 may receive a control channel message (e.g., as described above, while monitoring a resource set) and apply RSRP exclusion based at least in part on information included in the control channel message. Accordingly, the UE 120 may select one or more resources for transmission from the second resource pool 815 based at least in part on applying RSRP exclusion. In example 800, the UE 120 selects resources within the subframe represented by n and within the second resource pool 815 for transmission, while the UE supporting the first format selects resources within the subframe represented by n and within the first resource pool 810 for transmission.

[0103] Figure 8 An example of 800 can be used with Figure 6 For example, as described above, UE 120 may receive a control channel message while monitoring a resource set. The control channel message may be encoded according to a first format. Accordingly, UE 120 may select, based at least in part on information included in the control channel message encoded according to the first format, Figure 8 One or more resources in the second resource pool 815 (for example, as described above in conjunction with Figure 6 described).

[0104] For example, based at least in part on receiving the control channel message, the UE 120 may determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format supported by the second set of UEs with one or more expected bit values ​​defined by the first format. Thus, when encoding the control channel message according to the first format, the UE 120 may select one or more resources for transmission based at least in part on the information included in the control channel message. For example, the UE 120 may use the information to select one or more resources from the second resource pool 815.

[0105] By using such as combining Figure 8 By using the separate resource pools described above, UE 120 reduces signal interference and improves the reliability and / or quality of communication. For example, UE 120 can improve communication with a base station (e.g., as described above in conjunction with Figure 1-Figure 2 described) and / or with other UEs (e.g., as described above in conjunction with Figure 3-Figure 4 In some aspects, UE 120 may improve the reliability and / or quality of C-V2X communications.

[0106] As mentioned above, Figure 8 are provided as examples. Other examples may differ from those described in Figure 8 Examples described.

[0107] Fig. 9 900 is a diagram illustrating an example of resource pools partitioned in the frequency domain for messages with different control channel formats according to the present disclosure. In example 900, a UE (e.g., Figure 3 UE 120, UE 305-1 and / or UE 305-2, and / or Figure 4 UE 405 and / or UE 410) may monitor a resource set based at least in part on resource pool configuration 905. Fig. 9 As shown, resource pool configuration 905 may indicate a resource pool associated with a first format (e.g., defined by a first format pool bitmap) for a first set of UEs supporting a SCH parameter set, and a resource pool associated with a second format (e.g., defined by a second format pool bitmap) for a second set of UEs (including UE 120) supporting an appropriate subset of the SCH parameter set. For example, the SCH parameter set may include a different MCS table, a different TBS mapping rule, and / or another different parameter that is excluded from the appropriate subset of the SCH parameter set.

[0108] Additionally or alternatively, the first UE set may support the first standard and the second standard, and the second UE set may support the second standard and not support the first standard. For example, the second standard may be a legacy standard relative to the first standard. The first standard and the second standard may be defined within a 3GPP specification and / or other standard documents. For example, the first standard may be defined in a first version of the 3GPP specification (such as version 15), and the second standard may be defined in a second version of the 3GPP specification (such as version 14), the second version being a legacy version relative to the first version. Additionally or alternatively, the first standard may support at least one modulation technique that is not supported by the second standard. For example, the first standard may support 64QAM and / or another modulation technique, while the second standard does not support it. In some aspects, the first standard and the second standard may additionally support at least one common modulation technique, such as QPSK modulation, 16QAM and / or another modulation technique.

[0109] In some aspects, a bitmap (e.g., a first format pool bitmap and / or a second format pool bitmap) may include a number of bits corresponding to one or more subframes within a corresponding resource pool. For example, a bitmap may have a first bit value (such as "0" in example 900) indicating that the corresponding subframe is not part of the corresponding resource pool, or a second bit value (such as "1" in example 900) indicating that the corresponding subframe is part of the corresponding resource pool. Thus, Fig. 9 As shown, a resource pool associated with a first format may be separated in the time domain from a resource pool associated with a second format.

[0110] like Fig. 9 As shown, UE 120 can use the resource pool associated with the second format to receive (Rx) a message encoded according to the second format. Accordingly, UE 120 can monitor the resource set by applying RSSI sensing based at least in part on the resource pool configuration 905. For example, UE 120 can apply RSSI sensing to one or more resources within the resource pool associated with the second format. In example 900, UE 120 monitors odd subframes (e.g., subframes 1, 3, 5, 7, 9, 11, 13, 15, 17, etc.) within the resource pool associated with the second format to receive messages encoded according to the second format. Similarly, a UE supporting the first format can use the resource pool associated with the first format to receive (Rx) a message encoded according to the first format. In example 900, a UE supporting the first format monitors even subframes (e.g., subframes 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, etc.) within the resource pool associated with the first format to receive messages encoded according to the first format. Accordingly, in some aspects, and as Fig. 9 As shown in , a resource pool associated with a first format may be separated in the time domain from a resource pool associated with a second format.

[0111] like Fig. 9 As further shown in , UE 120 may select one or more resources for transmission from a resource pool associated with the second format based at least in part on the monitored resource set. Thus, UE 120 may use a resource pool associated with the second transmission format (Tx). By avoiding transmissions in a resource pool associated with the first format, UE 120 may avoid interference with transmissions encoded according to the first format. UEs supporting the first format may similarly use a resource pool associated with the first format for transmission (Tx), as shown in FIG. Fig. 9 By avoiding transmissions in the resource pool associated with the second format, UEs supporting the first format may avoid interference with transmissions encoded according to the second format.

[0112] In some aspects, UE 120 may receive a control channel message (e.g., as described above, while monitoring a resource set) and apply RSRP exclusion based at least in part on information included in the control channel message. Accordingly, UE 120 may select one or more resources for transmission from a resource pool associated with the second format based at least in part on applying RSRP exclusion. In example 800, UE 120 selects resources within odd subframes and within a resource pool associated with the second format for transmission, while a UE supporting the first format selects resources within even subframes and within a resource pool associated with the first format for transmission.

[0113] Fig. 9 The example 900 can be used with Figure 6 For example, as described above, UE 120 may receive a control channel message while monitoring a resource set. The control channel message may be encoded according to a first format. Accordingly, UE 120 may receive a control channel message based at least in part on the first format (e.g., as described above in combination with Figure 6 The information included in the control channel message encoded as described above is selected in a format consistent with the second format (e.g., Fig. 9 One or more resources within an associated resource pool) as depicted in .

[0114] For example, based at least in part on receiving the control channel message, UE 120 may determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a set of bits defined by a second format supported by a second set of UEs to one or more expected bit values ​​defined by the first format. Thus, when encoding the control channel message according to the first format, UE 120 may select one or more resources for transmission based at least in part on the information included in the control channel message. For example, UE 120 may use the information to select one or more resources associated with the second format from a pool of resources, such as Fig. 9 As depicted in .

[0115] By using such as combining Fig. 9 By using the separate resource pools described above, UE 120 reduces signal interference and improves reliability and / or quality of communication. For example, UE 120 can improve communication with a base station (e.g., as described above in conjunction with Figure 1-Figure 2 described) and / or with other UEs (e.g., as described above in conjunction with Figure 3-Figure 4 In some aspects, UE 120 may improve the reliability and / or quality of C-V2X communications.

[0116] As mentioned above, Fig. 9 are provided as examples. Other examples may differ from those described in Fig. 9 Examples described.

[0117] Fig.10 1 is a diagram illustrating an example process 1000 performed, for example, by a UE according to the present disclosure. Example process 1000 is an example in which a UE (eg, UE 120 and / or UE 305) performs operations associated with supporting a legacy control channel format.

[0118] like Fig.10As shown, in some aspects, process 1000 may include receiving a control channel message encoded according to a first format that is associated with a different set of SCH parameters than a second format supported by the UE (block 1010). For example, the UE (e.g., using one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller / processor 280, and / or memory 282) may receive a control channel message encoded according to the first format as described above. In some aspects, the second format is a legacy format relative to the first format.

[0119] like Fig.10 As further shown in FIG. 1 , in some aspects, process 1000 may include determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a set of bits defined by the second format with one or more expected bit values ​​defined by the first format (block 1020). For example, the UE (e.g., using one or more of the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, and / or the memory 282) may determine to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a set of bits defined by the second format with one or more expected bit values ​​defined by the first format as described above.

[0120] like Fig.10 As further shown in FIG. 1 , in some aspects, process 1000 may include selecting one or more resources for transmission based at least in part on information included in the control channel message (block 1030). For example, when the control channel message is encoded according to the first format, the UE (e.g., using one or more of the modulator 254, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, and / or the memory 282) may select one or more resources for transmission based at least in part on information included in the control channel message as described above.

[0121] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0122] In a first aspect, a first format is defined in a first standard, and a second format is defined in a second standard, the second standard being a legacy standard relative to the first standard.

[0123] In the second aspect, alone or in combination with the first aspect, the UE supports the second standard and does not support the first standard.

[0124] In a third aspect alone or in combination with one or more of the first and second aspects, the first standard supports at least one modulation technique not supported by the second standard.

[0125] In a fourth aspect alone or in combination with one or more of the first to third aspects, different SCH parameter sets include at least one of the following: different MCS tables, different TBS mapping rules, or a combination thereof.

[0126] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, the comparison includes: when comparing one or more bit values ​​of the control channel message with one or more expected bit values ​​defined by the first format, (for example, using one or more of the demodulator 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280 and / or the memory 282) comparing the transport format bit value of the control channel message with the expected transport format bit value defined by the first format.

[0127] In the sixth aspect alone or in combination with one or more of the first to fifth aspects, the transport format bit value is in a bit position corresponding to a reserved bit defined by the second format, and the reserved bit is defined as zero by the second format.

[0128] In the seventh aspect alone or in combination with one or more of the first to sixth aspects, the information included in the control channel message comprises at least one of the following: priority information, resource reservation information, or a combination thereof.

[0129] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, selecting one or more resources for transmission includes: (e.g., using one or more of the modulator 254, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280 and / or the memory 282) applying RSRP exclusion based at least in part on information included in a control channel message.

[0130] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, one or more resources for transmission are selected at least in part based on a resource pool configuration, the resource pool configuration indicating one of the following: a common resource pool for a first set of UEs supporting a first format and a second set of UEs supporting a second format, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, the first resource pool being separate from the second resource pool.

[0131] although Fig.10Example blocks of process 1000 are shown, but in some aspects, process 1000 may include Fig.10 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 1000. Additionally or alternatively, two or more blocks of the blocks of process 1000 may be performed in parallel.

[0132] Fig.11 1 is a diagram illustrating an example process 1100 performed, for example, by a UE according to the present disclosure. Example process 1100 is an example in which a UE (eg, UE 120 and / or UE 305) performs operations associated with supporting a legacy control channel format.

[0133] like Fig.11 As shown, in some aspects, process 1100 may include monitoring a set of resources based at least in part on a resource pool configuration (block 1110). For example, a UE (e.g., using one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller / processor 280, and / or memory 282) may monitor a set of resources based at least in part on a resource pool configuration as described above. In some aspects, the resource pool configuration indicates one of: a common resource pool for a first set of UEs supporting a set of SCH parameters and a second set of UEs supporting an appropriate subset of the set of SCH parameters, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, the first resource pool being separate from the second resource pool.

[0134] like Fig.11 As further shown in FIG. 1 , in some aspects, process 1100 may include selecting one or more resources for transmission from a common resource pool or a first resource pool and a second resource pool based at least in part on the monitored resource set (block 1120). For example, the UE (e.g., using one or more of modulator 254, transmit processor 264, TX MIMO processor 266, controller / processor 280, and / or memory 282) may select one or more resources for transmission from a common resource pool or a first resource pool and a second resource pool based at least in part on the monitored resource set as described above.

[0135] Process 1100 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0136] In a first aspect, the first resource pool is separated from the second resource pool in the frequency domain.

[0137] In the second aspect alone or in combination with the first aspect, the first resource pool is separated from the second resource pool in the time domain.

[0138] In a third aspect, alone or in combination with one or more of the first and second aspects, monitoring a resource set includes applying RSSI sensing based at least in part on a resource pool configuration (e.g., using one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller / processor 280, and / or memory 282).

[0139] In a fourth aspect, alone or in combination with one or more of the first to third aspects, process 1100 also includes: when monitoring the resource set, receiving a control channel message (e.g., using one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller / processor 280 and / or memory 282), and applying RSRP exclusion based at least in part on information included in the control channel message (e.g., using one or more of modulator 254, transmit processor 264, TX MIMO processor 266, controller / processor 280 and / or memory 282), wherein one or more resources are selected based at least in part on applying the RSRP exclusion.

[0140] In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, the SCH parameter set includes at least one of the following items excluded from the appropriate subset of the SCH parameter set: a different MCS table, a different TBS mapping rule, or a combination thereof.

[0141] In the sixth aspect alone or in combination with one or more of the first to fifth aspects, the first UE set supports the first standard and the second standard, and the second UE set supports the second standard and does not support the first standard.

[0142] In the seventh aspect alone or in combination with one or more of the first to sixth aspects, the first standard supports at least one modulation technique not supported by the second standard.

[0143] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 1100 also includes: when monitoring the resource set, receiving a control channel message encoded according to a first format supported by a first set of UEs (e.g., using one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, controller / processor 280 and / or memory 282); and determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a second format defined by a second set of UEs with one or more expected bit values ​​defined by the first format (e.g., using one or more of demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280 and / or memory 282), wherein when the control channel message is encoded according to the first format, one or more resources for transmission are selected at least in part based on information included in the control channel message.

[0144] although Fig.11 Example blocks of process 1100 are shown, but in some aspects process 1100 may include Fig.11 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 1100. Additionally or alternatively, two or more blocks of the blocks of process 1100 may be performed in parallel.

[0145] The following provides an overview of some aspects of the disclosure:

[0146] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: receiving a control channel message encoded according to a first format, the first format being associated with a shared data channel (SCH) parameter set that is different from a second format supported by the UE, wherein the second format is a legacy format relative to the first format; determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by the second format with one or more expected bit values ​​defined by the first format; and when encoding the control channel message according to the first format, selecting one or more resources for transmission based at least in part on information included in the control channel message.

[0147] Aspect 2: The method according to aspect 1, wherein the first format is defined in a first standard, and the second format is defined in a second standard, wherein the second standard is a legacy standard relative to the first standard.

[0148] Aspect 3: The method as described in aspect 2, wherein the UE supports the second standard and does not support the first standard.

[0149] Aspect 4: The method according to any one of Aspects 2 to 3, wherein the first standard supports at least one modulation technique that is not supported by the second standard.

[0150] Aspect 5: A method as described in any one of Aspects 1 to 4, wherein different SCH parameter sets include at least one of the following: different modulation and coding scheme (MCS) tables, different transport block size (TBS) mapping rules, or a combination thereof.

[0151] Aspect 6: A method as described in any one of Aspects 1 to 5, wherein the comparison includes: when comparing one or more bit values ​​of the control channel message with the expected transmission format bit value defined by the first format, comparing the transmission format bit value of the control channel message with one or more expected bit values ​​defined by the first format.

[0152] Aspect 7: The method of aspect 6, wherein the transport format bit value is in a bit position corresponding to a reserved bit defined by the second format, wherein the reserved bit is defined as zero by the second format.

[0153] Aspect 8: A method as described in any one of Aspects 1 to 7, wherein the information included in the control channel message includes at least one of the following: priority information, resource reservation information, or a combination thereof.

[0154] Aspect 9: A method as described in any one of Aspects 1 to 8, wherein selecting one or more resources for transmission includes: applying reference signal received power (RSRP) exclusion based at least in part on information included in the control channel message.

[0155] Aspect 10: A method as described in any one of Aspects 1 to 9, wherein one or more resources for transmission are selected at least in part based on a resource pool configuration, wherein the resource pool configuration indicates one of the following: a common resource pool for a first set of UEs supporting a first format and a second set of UEs supporting a second format, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool.

[0156] Aspect 11: A wireless communication method performed by a user equipment (UE), comprising: configuring a monitoring resource set based at least in part on a resource pool, wherein the resource pool configuration indicates one of the following: a common resource pool for a first UE set supporting a shared data channel (SCH) parameter set and a second UE set supporting an appropriate subset of the SCH parameter set, or a first resource pool for the first UE set and a second resource pool for the second UE set, wherein the first resource pool is separated from the second resource pool; and selecting one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based at least in part on the monitoring resource set.

[0157] Aspect 12: The method according to Aspect 11, wherein the first resource pool is separated from the second resource pool in the frequency domain.

[0158] Aspect 13: The method as described in any one of Aspects 11 to 12, wherein the first resource pool is separated from the second resource pool in the time domain.

[0159] Aspect 14: The method as described in any one of aspects 11 to 13, wherein received signal strength indicator (RSSI) sensing is applied based at least in part on the resource pool configuration.

[0160] Aspect 15: The method as described in any one of Aspects 11 to 14 also includes: receiving a control channel message when monitoring a resource set; and applying reference signal received power (RSRP) exclusion based at least in part on information included in the control channel message, wherein one or more resources are selected based at least in part on applying the RSRP exclusion.

[0161] Aspect 16: A method as described in any one of Aspects 11 to 15, wherein the SCH parameter set includes at least one of the following items excluded from an appropriate subset of the SCH parameter set: different modulation and coding scheme (MCS) tables, different transport block size (TBS) mapping rules, or a combination thereof.

[0162] Aspect 17: The method as described in any one of Aspects 11 to 16, wherein the first UE set supports the first standard and the second standard, and the second UE set supports the second standard and does not support the first standard.

[0163] Aspect 18: The method according to Aspect 17, wherein the first standard supports at least one modulation technique that is not supported by the second standard.

[0164] Aspect 19: The method as described in any one of Aspects 11 to 18 also includes: when monitoring a resource set, receiving a control channel message encoded according to a first format supported by a first UE set; and determining that the control channel message is encoded according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in a bit position corresponding to a bit set defined by a second format supported by a second UE set with one or more expected bit values ​​defined by the first format, wherein when the control channel message is encoded according to the first format, one or more resources for transmission are selected at least in part based on information included in the control channel message.

[0165] Aspect 20: 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 the method described in one or more of Aspects 1-10.

[0166] Aspect 21: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, wherein the memory and the one or more processors are configured to execute the method described in one or more of aspects 1-10.

[0167] Aspect 22: An apparatus for wireless communication, comprising at least one component for performing the method of one or more of aspects 1-10.

[0168] Aspect 23: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-10.

[0169] Aspect 24: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects 1-10.

[0170] Aspect 25: 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 the method described in one or more of Aspects 11-19.

[0171] Aspect 26: A device 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 execute the method of one or more of aspects 11-19.

[0172] Aspect 27: An apparatus for wireless communication, comprising at least one component for performing the method of one or more of aspects 11-19.

[0173] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 11-19.

[0174] Aspect 29: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more aspects of aspects 11-19.

[0175] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.

[0176] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware, firmware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes and / or functions, etc. As used herein, processors are implemented with hardware, firmware, and / or a combination of hardware and software. It will be obvious that the system and / or method described herein can be implemented in different forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code for implementing these systems and / or methods does not limit various aspects. Thus, the operation and behavior of these systems and / or methods are described herein without reference to specific software codes--it should be understood that software and hardware can be designed to implement these systems and / or methods based at least in part on the description herein.

[0177] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0178] Although specific feature combinations are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner not specifically described in the claims and / or not disclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of various aspects includes that each dependent claim is combined with each other claim in this group of claims. As used herein, the phrase quoting "at least one of" a column of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover: a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc, or any other sorting of a, b and c).

[0179] The elements, actions or instructions used herein should not be interpreted as key or necessary unless explicitly described as such. Moreover, as used herein, the articles "one" and "a" are intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more items quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, non-related items, combinations of related and non-related items, etc.), and can be used interchangeably with "one or more". In the case of intending to have only one item, the phrase "only one" or similar language is used. Moreover, as used herein, the terms "having", "containing", "including", etc. are intended to be open terms. In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise clearly stated. Moreover, as used herein, the term "or" is intended to be inclusive when used in a sequence, and can be used interchangeably with "and / or", unless otherwise clearly stated (e.g., in the case of being used in conjunction with "any one of" or "only one of").

Claims

1. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors, coupled to the memory, the one or more processors configured to: receiving a control channel message encoded according to a first format not supported by the UE, the first format being associated with a set of shared data channel (SCH) parameters that is different from a second format supported by the UE, wherein the second format is a legacy format relative to the first format; determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a set of bits defined by the second format to one or more expected bit values ​​defined by the first format; and When the control channel message is encoded according to the first format, one or more resources for transmission are selected according to a reference signal received power (RSRP) exclusion applied based on information included in the control channel message.

2. The UE according to claim 1, wherein: The first format is defined in a first standard and the second format is defined in a second standard, wherein the second standard is a legacy standard relative to the first standard.

3. The UE according to claim 2, wherein: The first standard supports at least one modulation technique that is not supported by the second standard.

4. The UE according to claim 1, wherein: The different SCH parameter sets include at least one of the following: a different modulation and coding scheme (MCS) table, a different transport block size (TBS) mapping rule, or a combination thereof.

5. The UE according to claim 1, wherein: To compare the one or more bit values ​​of the control channel message with the one or more expected bit values ​​defined by the first format, the one or more processors are configured to: The transport format bit values ​​of the control channel message are compared with expected transport format bit values ​​defined by the first format.

6. The UE according to claim 5, wherein: The transport format bit values ​​are in bit positions corresponding to reserved bits defined by the second format, and the reserved bits are defined by the second format to be zero.

7. The UE according to claim 1, wherein: The information included in the control channel message includes at least one of: priority information, resource reservation information, or a combination thereof.

8. The UE according to claim 1, wherein: To select the one or more resources for transmission, the one or more processors are configured to: The reference signal received power (RSRP) exclusion is applied to select the one or more resources from a resource pool.

9. The UE according to claim 1, wherein: To select the one or more resources for transmission, the one or more processors are configured to: The one or more resources are selected for transmission based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of: a common resource pool for a first set of UEs supporting the first format and a second set of UEs supporting the second format, or A first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool.

10. The UE of claim 1, wherein the control channel message is detected using received signal strength indicator (RSSI) sensing.

11. The UE of claim 2, wherein the second standard is defined in a legacy version relative to a version associated with the first standard.

12. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors, coupled to the memory, the one or more processors configured to: Applying received signal strength indicator (RSSI) sensing to monitor the set of resources based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of: A common resource pool for a first set of UEs supporting a set of shared data channel (SCH) parameters and a second set of UEs supporting an appropriate subset of the set of SCH parameters, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool; and One or more resources are selected for transmission from the common resource pool or the first resource pool and the second resource pool according to reference signal received power (RSRP) exclusion applied based on information included in a control channel message, wherein the control channel message is encoded according to a format supported by the first set of UEs.

13. The UE according to claim 12, wherein: The first resource pool is separated from the second resource pool in the frequency domain.

14. The UE according to claim 12, wherein: The first resource pool is separated from the second resource pool in the time domain.

15. The UE according to claim 12, wherein: The one or more processors are further configured to: While monitoring the resource set, receiving the control channel message; and The one or more resources are selected applying a reference signal received power (RSRP) exclusion based on information included in the control channel message.

16. The UE according to claim 12, wherein: The SCH parameter set includes at least one of the following items excluded from the appropriate subset of the SCH parameter set: a different modulation and coding scheme (MCS) table, a different transport block size (TBS) mapping rule, or a combination thereof.

17. The UE according to claim 12, wherein: The format is defined within a first standard, the first standard supporting at least one modulation technique not supported by a second standard, the first standard not supported by the second set of UEs.

18. The UE according to claim 12, wherein: The one or more processors are further configured to: while monitoring the set of resources, receiving the control channel message encoded according to the format supported by the first set of UEs; as well as determining to encode the control channel message according to the format based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a set of bits defined by a second format supported by the second set of UEs to one or more expected bit values ​​defined by the format, Wherein, when the control channel message is encoded according to the format, the one or more resources are selected based at least in part on information included in the control channel message.

19. The UE of claim 12, wherein the control channel message is detected using received signal strength indicator (RSSI) sensing.

20. The UE of claim 17, wherein the second standard is defined in a legacy version relative to a version associated with the first standard.

21. A wireless communication method performed by a user equipment (UE), comprising: receiving a control channel message encoded according to a first format not supported by the UE, the first format being associated with a set of shared data channel (SCH) parameters that is different from a second format supported by the UE, wherein the second format is a legacy format relative to the first format; determining to encode the control channel message according to the first format based at least in part on comparing one or more bit values ​​of the control channel message in bit positions corresponding to a set of bits defined by the second format to one or more expected bit values ​​defined by the first format; and When the control channel message is encoded according to the first format, one or more resources for transmission are selected according to a reference signal received power (RSRP) exclusion applied based on information included in the control channel message.

22. The method of claim 21, wherein: The comparing comprises comparing a transport format bit value of the control channel message with the one or more expected transport bit values ​​defined by the first format when comparing the one or more bit values ​​of the control channel message with the expected format bit values ​​defined by the first format.

23. The method of claim 22, wherein: The transport format bit values ​​are in bit positions corresponding to reserved bits defined by the second format, wherein the reserved bits are defined by the second format to be zero.

24. The method of claim 21, wherein: The information included in the control channel message includes at least one of: priority information, resource reservation information, or a combination thereof.

25. The method of claim 21, wherein: Selecting the one or more resources for transmission includes applying the reference signal received power (RSRP) exclusion to select the one or more resources from a resource pool.

26. The method of claim 21, wherein: The different SCH parameter sets include at least one of the following: a different modulation and coding scheme (MCS) table, a different transport block size (TBS) mapping rule, or a combination thereof.

27. A wireless communication method performed by a user equipment (UE), comprising: Applying received signal strength indicator (RSSI) sensing to monitor the set of resources based at least in part on a resource pool configuration, wherein the resource pool configuration indicates one of: A common resource pool for a first set of UEs supporting a set of shared data channel (SCH) parameters and a second set of UEs supporting an appropriate subset of the set of SCH parameters, or a first resource pool for the first set of UEs and a second resource pool for the second set of UEs, wherein the first resource pool is separate from the second resource pool; and for selecting one or more resources for transmission from the common resource pool or the first resource pool and the second resource pool based on a reference signal received power (RSRP) exclusion applied based on information included in a control channel message, wherein the control channel message is encoded according to a format supported by the first set of UEs.

28. The method of claim 27, wherein: The first resource pool is separated from the second resource pool in the frequency domain.

29. The method of claim 27, wherein: The first resource pool is separated from the second resource pool in the time domain.

30. The method of claim 27, further comprising: receiving the control channel message while monitoring the resource set; as well as The one or more resources are selected applying a reference signal received power (RSRP) exclusion based on information included in the control channel message.

31. The method of claim 27, wherein: The SCH parameter set includes at least one of the following items excluded from the appropriate subset of the SCH parameter set: a different modulation and coding scheme (MCS) table, a different transport block size (TBS) mapping rule, or a combination thereof.

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