WO2022067583A1 - Procédés et appareils d'envoi et de réception de signaux - Google Patents

Procédés et appareils d'envoi et de réception de signaux Download PDF

Info

Publication number
WO2022067583A1
WO2022067583A1 PCT/CN2020/119090 CN2020119090W WO2022067583A1 WO 2022067583 A1 WO2022067583 A1 WO 2022067583A1 CN 2020119090 W CN2020119090 W CN 2020119090W WO 2022067583 A1 WO2022067583 A1 WO 2022067583A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
rsrp
sul
sul carrier
uplink
Prior art date
Application number
PCT/CN2020/119090
Other languages
English (en)
Chinese (zh)
Inventor
陆绍中
谢信乾
郭志恒
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/119090 priority Critical patent/WO2022067583A1/fr
Priority to CN202080105112.7A priority patent/CN116195342A/zh
Publication of WO2022067583A1 publication Critical patent/WO2022067583A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of mobile communication technologies, and in particular, to a method and apparatus for transmitting and receiving signals.
  • a new radio (NR) cell can be configured with a supplementary uplink (SUL) carrier in addition to a normal uplink (NUL) carrier.
  • the frequency of the SUL carrier is lower than that of the NUL carrier, which can effectively improve the uplink coverage performance of NR.
  • random access resources are configured on the initial access bandwidth part (BWP) of the NUL carrier and the SUL carrier respectively.
  • the reference signal received power (reference signal received power, RSRP) threshold is included, and an uplink carrier is selected from the NUL carrier and the SUL carrier to initiate random access.
  • the UE's understanding of the RSRP threshold is based on the fact that the frequency of the SUL carrier is lower than the frequency of the NUL carrier. If the frequency of the SUL carrier is higher than the frequency of the NUL carrier, the UE cannot select the uplink carrier, resulting in the UE unable to initiate random access. enter.
  • Embodiments of the present application provide a method and apparatus for transmitting and receiving signals, which are used to provide a way for a UE to determine an uplink carrier.
  • a first signal sending method receives configuration information of at least one SUL carrier from the network device, wherein the configuration information of the first SUL carrier in the configuration information of the at least one SUL carrier includes indication information and a first RSRP threshold, and the first SUL carrier is Any one of the at least one SUL carrier.
  • the terminal device determines an uplink carrier according to at least one indication information, measured RSRP and at least one RSRP threshold, and the uplink carrier is one of the at least one SUL carrier, or is a NUL carrier, wherein, in the first When the indication information corresponding to the SUL carrier indicates the first state, and the measured RSRP is greater than the first RSRP threshold, the uplink carrier is the first SUL carrier.
  • the terminal device sends an uplink signal to the network device on the uplink carrier.
  • the network device may indicate the state through indication information, and the state may also be regarded as a selection rule.
  • the first state corresponds to a selection rule. If the indication information corresponding to the first SUL carrier indicates the first state, then , if the measured RSRP is greater than the RSRP threshold corresponding to the first SUL carrier, the terminal device can select the first SUL carrier, otherwise the terminal device does not select the first SUL carrier. That is to say, the embodiment of the present application provides a method for determining the uplink carrier.
  • the UE can determine the uplink carrier, thus, the flexibility of the SUL carrier configuration and the success rate of the UE in determining the uplink carrier are improved, so that the UE can normally send the uplink signal on the determined uplink carrier.
  • the uplink carrier is the The first SUL carrier.
  • the first state and the second state can also be regarded as two kinds of rules. If the indication information of a SUL carrier indicates the first state, the rule corresponding to the first state is used for the SUL carrier, that is, if the measured RSRP is greater than the SUL The RSRP threshold corresponding to the carrier, the terminal equipment can select the SUL carrier, otherwise the terminal equipment will not select the SUL carrier; and if the indication information of a SUL carrier indicates the second state, the SUL carrier uses the rules corresponding to the second state That is, if the measured RSRP is less than the RSRP threshold corresponding to the SUL carrier, the terminal device can select the SUL carrier, otherwise the terminal device does not select the SUL carrier. It can be seen that, regardless of whether the frequency of the SUL carrier is lower than the frequency of the NUL carrier or greater than the frequency of the NUL carrier, the UE can determine the uplink carrier according to the method provided by the embodiment of the present application.
  • the configuration information of the first SUL carrier further includes priority information of the first SUL carrier.
  • the configuration information of a SUL carrier may also include the priority information of the SUL carrier, so that when the terminal device determines the uplink carrier, it can be determined according to the priority of each SUL carrier, for example, try to determine the SUL carrier with higher priority as the above-mentioned SUL carrier.
  • the uplink carrier makes the signal quality of the uplink carrier selected by the terminal device better.
  • the terminal device determines the uplink carrier according to at least one indication information, measured RSRP, and at least one RSRP threshold, which may be implemented in the following manner: the terminal device determines the uplink carrier according to the at least one SUL carrier In order of priority from high to low, the measured RSRP is compared with the first RSRP threshold.
  • the terminal device determines that the first SUL carrier is the uplink or, if the indication information corresponding to the first SUL carrier indicates the second state, if the measured RSRP is less than the first RSRP threshold, the terminal device determines that the first SUL carrier is the the upstream carrier.
  • the terminal compares the measured RSRP with the second RSRP threshold; or, in the case that the indication information corresponding to the first SUL carrier indicates the second state, if the measured RSRP is greater than or equal to the first RSRP threshold , the terminal device compares the measured RSRP with a second RSRP threshold; wherein, the second RSRP threshold is a threshold corresponding to the second SUL carrier in the at least one SUL carrier, and the first SUL carrier The priority is higher than the priority of the second SUL carrier.
  • the terminal device determines that the second SUL carrier is the uplink carrier, or, when the indication information corresponding to the second SUL carrier indicates the second state, the measured RSRP is less than the second RSRP threshold, and the terminal device determines that the second SUL carrier is the Upstream carrier.
  • the terminal device compares the measured RSRP with the at least one RSRP threshold, it can compare the measured RSRP with the RSRP threshold in the at least one RSRP threshold in order of priority. Then, if it is determined that the measured RSRP does not meet the relationship between the RSRP threshold, the measured RSRP and the state indicated by the indication information, or the terminal device cannot select an uplink carrier after comparing an RSRP threshold, the terminal device can Continue to compare the measured RSRP with the RSRP threshold corresponding to the SUL carrier of the next priority in the order of priority from high to low.
  • the terminal device determines that the measured RSRP satisfies the relationship between the RSRP threshold, the measured RSRP and the state indicated by the indication information after comparing an RSRP threshold, or, in other words, after comparing an RSRP threshold, the terminal device determines that it has been able to After selecting the uplink carrier, the terminal device can determine the uplink carrier without performing the remaining comparison process. In this way, the efficiency of determining the uplink carrier by the terminal device can be improved, and because the comparison process can be reduced, the power consumption of the terminal device can be saved.
  • the SUL carrier with higher priority may be determined by the terminal device, so the signal quality of the uplink carrier determined by the terminal device can also be improved in this way.
  • the uplink carrier is the NUL carrier, wherein the at least one relationship is the NUL carrier.
  • One relationship is the relationship between the state indicated by the indication information corresponding to one SUL carrier, the RSRP threshold corresponding to the one SUL carrier, and the measured RSRP.
  • the terminal device may determine that the NUL carrier is the uplink carrier. That is to say, the terminal device can select the NUL carrier when it is determined that all SUL carriers do not meet the condition, and can make the selected uplink carrier be the SUL carrier as much as possible, so as to improve the uplink coverage performance.
  • the terminal device can determine the NUL The carrier is the uplink carrier. In this case, the terminal device can select the NUL carrier when it is determined that some of the SUL carriers do not meet the conditions, thereby reducing the comparison process of the terminal device and saving the power consumption of the terminal device.
  • a signal receiving method Sending configuration information of at least one supplementary uplink SUL carrier to the terminal device, where the configuration information of the at least one SUL carrier is used to determine the uplink carrier, wherein the configuration information of the first SUL carrier in the configuration information of the at least one SUL carrier includes: indication information and a first reference signal received power RSRP threshold, the first SUL carrier is any one of the at least one SUL carrier.
  • the uplink The carrier is the first SUL carrier.
  • the configuration information of the first SUL carrier further includes priority information of the first SUL carrier.
  • the uplink carrier is the NUL carrier, wherein the at least one relationship is the NUL carrier.
  • One relationship is the relationship between the state indicated by the indication information corresponding to one SUL carrier, the RSRP threshold corresponding to the one SUL carrier, and the measured RSRP.
  • a second signal sending method determines the frequency of at least one SUL carrier and determines the frequency of the NUL carrier.
  • the terminal device determines an uplink carrier according to the frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and at least one RSRP threshold, wherein the uplink carrier is one of the at least one SUL carrier , or the NUL carrier, the at least one RSRP threshold is received by the terminal device from the network device, and the at least one RSRP threshold corresponds to the at least one SUL carrier.
  • the terminal device sends an uplink signal to the network device on the uplink carrier.
  • the network device does not need to indicate the selection rule, and the terminal device can determine the selection rule according to the frequency of the SUL carrier and the frequency of the NUL carrier, so as to select the uplink carrier. That is to say, the embodiment of the present application provides a method for determining the uplink carrier. Regardless of whether the frequency of the SUL carrier is lower than the frequency of the NUL carrier or greater than the frequency of the NUL carrier, according to the method provided by the embodiment of the present application, the terminal device can determine the uplink carrier. , thereby improving the success rate of the terminal device in determining the uplink carrier, so that the terminal device can normally send the uplink signal on the determined uplink carrier. Moreover, since the network device does not need to indicate the selection rule, signaling overhead can also be saved.
  • the terminal device determines the uplink carrier according to the frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and the RSRP threshold, which may be implemented in the following manner: In the case where the frequency of the first SUL carrier in the at least one SUL carrier is greater than the frequency of the NUL carrier, if the measured RSRP is greater than the RSRP threshold corresponding to the first SUL carrier, the The uplink carrier is the first SUL carrier.
  • the terminal device determines the uplink carrier according to the frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and the RSRP threshold, which may be implemented in the following manner: In the case where the frequency of the first SUL carrier in the at least one SUL carrier is less than the frequency of the NUL carrier, if the measured RSRP is less than the RSRP threshold corresponding to the first SUL carrier, the The uplink carrier is the first SUL carrier.
  • the terminal equipment predicts two rules. If the frequency of a SUL carrier is greater than the frequency of the NUL carrier, one of the rules is used for the SUL carrier, that is, if the measured RSRP is greater than the RSRP threshold corresponding to the SUL carrier, then the terminal equipment The SUL carrier can be selected, otherwise the terminal device does not select the SUL carrier; and if the frequency of a SUL carrier is less than the frequency of the NUL carrier, the other rule is used for the SUL carrier, that is, if the measured RSRP is less than the SUL carrier The RSRP threshold corresponding to the carrier, the terminal equipment can select the SUL carrier, otherwise the terminal equipment will not select the SUL carrier. It can be seen that, regardless of whether the frequency of the SUL carrier is lower than the frequency of the NUL carrier or greater than the frequency of the NUL carrier, the UE can determine the uplink carrier according to the method provided by the embodiment of the present application.
  • the terminal device further receives first information from the network device, where the first information is used to indicate the priority of the at least one SUL carrier.
  • the terminal device determines the uplink carrier according to the frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and at least one RSRP threshold, which may be implemented in the following manner: The terminal device compares the measured RSRP with the first RSRP threshold according to the priority of the at least one SUL carrier from high to low.
  • the terminal device determines that the first SUL carrier is the uplink carrier; or, in the case where the frequency of the first SUL carrier is less than the frequency of the NUL carrier, if the measured RSRP is less than the RSRP threshold corresponding to the first SUL carrier, the terminal device determines The first SUL carrier is the uplink carrier.
  • the terminal device compares the measured RSRP with a second RSRP threshold; or, if the frequency of the first SUL carrier is less than the frequency of the NUL carrier, if the measured RSRP is greater than or equal to the RSRP threshold corresponding to the first SUL carrier, the terminal device compares the measured RSRP with the second RSRP threshold; wherein the second RSRP threshold is the threshold corresponding to the second SUL carrier in the at least one SUL carrier , the priority of the first SUL carrier is higher than the priority of the second SUL carrier.
  • the terminal device determines that the second SUL carrier is The uplink carrier, or, when the frequency of the second SUL carrier is less than the frequency of the NUL carrier, the measured RSRP is less than the RSRP threshold corresponding to the second SUL carrier, and the terminal device determines that the The second SUL carrier is the uplink carrier.
  • the uplink carrier is the NUL carrier, wherein the at least one relationship is the NUL carrier.
  • One relationship is the relationship between the frequency of one SUL carrier, the frequency of the NUL carrier, the RSRP threshold corresponding to the one SUL carrier, and the measured RSRP.
  • a communication device may be the terminal device described in any one of the first to third aspects above, or an electronic device configured in the terminal device, or a larger device including the terminal device.
  • the terminal device includes corresponding means or modules for performing the above method.
  • the communication device includes a processing unit (sometimes also referred to as a processing module) and a transceiving unit (sometimes also referred to as a transceiving module).
  • the processing unit is configured to receive configuration information of at least one SUL carrier from the network device through the transceiver unit, determine the uplink carrier according to the at least one indication information, the measured RSRP and the at least one RSRP threshold, and also use for sending an uplink signal to the network device on the uplink carrier through the transceiver unit.
  • the processing unit is configured to determine the frequency of at least one SUL carrier and determine the frequency of the NUL carrier, according to the frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and at least one RSRP threshold, An uplink carrier is determined, and an uplink signal is sent to the network device on the uplink carrier by the transceiver unit.
  • the communication apparatus includes: a processor, coupled to the memory, for executing instructions in the memory, so as to implement the method executed by the terminal device in any one of the first to third aspects above.
  • the communication device further includes other components, such as an antenna, an input and output module, an interface, and the like. These components may be hardware, software, or a combination of software and hardware.
  • a communication device is provided.
  • the communication apparatus may be the network device described in any one of the first to third aspects above.
  • the communication device has the function of the above-mentioned network device.
  • the network equipment is, for example, a base station, or a baseband device in a base station.
  • the communication device includes a baseband device and a radio frequency device.
  • the communication apparatus includes a processing unit (sometimes also called a processing module) and a transceiver unit (sometimes also called a transceiver module).
  • the processing unit is configured to send configuration information of at least one supplementary uplink SUL carrier to the terminal device through the transceiver unit, and the processing unit is further configured to receive information from the terminal device on the uplink carrier up signal.
  • the communication device includes a storage unit and a processing unit, and the processing unit is configured to couple with the storage unit and execute programs or instructions in the storage unit to enable the communication device to perform the above The functionality of the network device.
  • a computer-readable storage medium is provided, the computer-readable storage medium is used to store a computer program or instruction, and when it is executed, the method performed by the terminal device or the network device in the above aspects is realized. .
  • a computer program product comprising instructions which, when run on a computer, cause the methods of the above aspects to be implemented.
  • FIG. 1 is a schematic diagram of a scenario in which one SUL carrier is configured for a single cell
  • FIG. 2 is a schematic diagram of an application scenario of an embodiment of the present application
  • FIG. 3 is a flowchart of a first signal sending and receiving method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of including configuration information in the supplementary uplink parameters and sending in an embodiment of the present application
  • FIG. 6 is a schematic diagram of a scenario in which multiple SUL carriers are configured for a single cell in an embodiment of the present application
  • FIG. 7 is a flowchart of a second method for sending and receiving signals according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • the technologies provided in the embodiments of the present application can be applied to a communication system, where a communication device (such as a terminal device) is connected to one or more core networks (CN) via one or more access network (AN) devices device to enable communication between multiple communication devices.
  • the communication system may, for example, support 2G, 3G, 4G, or 5G (also sometimes referred to as NR) access technology communication systems, wireless fidelity (WiFi) systems, 3rd generation partnership project, 3GPP) related cellular system, a communication system that supports the fusion of multiple wireless technologies, or a future-oriented evolution system.
  • 2G, 3G, 4G, or 5G also sometimes referred to as NR
  • WiFi wireless fidelity
  • 3GPP 3rd generation partnership project
  • a terminal device is a device with a wireless transceiver function, which may be a fixed device, a mobile device, a handheld device, a wearable device, a vehicle-mounted device, or a wireless device (for example, a communication module or a wireless device) built into the above-mentioned device. system-on-chip, etc.).
  • the terminal device is used to connect people, things, machines, etc., and can be widely used in various scenarios, such as but not limited to the following scenarios: cellular communication, device-to-device communication (device-to-device, D2D), vehicle-to-everything (vehicle to everything, V2X), machine-to-machine/machine-type communications (M2M/MTC), Internet of things (internet of things, IoT), virtual reality (virtual reality, VR) , Augmented reality (AR), industrial control (industrial control), unmanned driving (self driving), telemedicine (remote medical), smart grid (smart grid), smart furniture, smart office, smart wear, smart transportation , terminal equipment for smart city, drone, robot and other scenarios.
  • cellular communication device-to-device communication
  • vehicle-to-everything vehicle to everything, V2X
  • M2M/MTC machine-to-machine/machine-type communications
  • IoT Internet of things
  • virtual reality virtual reality
  • AR Augmented reality
  • the terminal equipment may sometimes be referred to as user equipment (user equipment, UE), a terminal, an access station, a UE station, a remote station, a wireless communication device, or a user equipment, etc.
  • UE user equipment
  • the device is described by taking the UE as an example.
  • the apparatus for implementing the function of the UE may be the UE, or may be an apparatus capable of supporting the UE to implement the function, such as a chip system, and the apparatus may be installed in the UE.
  • the technical solutions provided by the embodiments of the present application are described by taking the UE as an example as the apparatus for implementing the functions of the UE.
  • the network devices in the embodiments of the present application include, for example, access network devices and/or core network devices.
  • the access network device is a device with a wireless transceiver function, and is used to communicate with the terminal device.
  • the access network equipment includes, but is not limited to, the base station (BTS, Node B, eNodeB/eNB, or gNodeB/gNB), the transmission reception point (TRP), the 3GPP subsequent evolution base station, and the WiFi system in the above-mentioned communication system. access nodes, wireless relay nodes, wireless backhaul nodes, etc.
  • the base station may be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, and the like.
  • Multiple base stations may support the aforementioned networks of the same access technology, or may support the aforementioned networks of different access technologies.
  • a base station may contain one or more co-sited or non-co-sited transmission reception points.
  • the network device may also be a wireless controller, a centralized unit (centralized unit, CU), and/or a distributed unit (distributed unit, DU) in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • the network device can also be a server, a wearable device, or a vehicle-mounted device.
  • a network device in the V2X technology may be a road side unit (RSU).
  • RSU road side unit
  • the multiple network devices in the communication system may be base stations of the same type, or may be base stations of different types.
  • the base station can communicate with the UE, and can also communicate with the UE through the relay station.
  • a UE may communicate with multiple base stations in different access technologies.
  • the core network equipment is used to implement functions such as mobility management, data processing, session management, policy and charging.
  • the names of devices implementing core network functions in systems with different access technologies may be different, which are not limited in this embodiment of the present application.
  • the core network equipment includes: an access and mobility management function (AMF), a session management function (SMF), or a user plane function (UPF) Wait.
  • AMF access and mobility management function
  • SMF session management function
  • UPF user plane function
  • the apparatus for implementing the function of the network device may be the network device, or may be an apparatus capable of supporting the network device to implement the function, such as a chip system, and the apparatus may be installed in the network device.
  • the technical solutions provided by the embodiments of the present application are described by taking the device for realizing the function of the network device being a network device as an example.
  • the number of nouns means “singular nouns or plural nouns", ie "one or more". "At least one” means one or more, and “plurality” means two or more. "And/or”, which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/" generally indicates that the associated objects are an "or” relationship. For example, A/B, means: A or B.
  • At least one item(s) below or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c Can be single or multiple.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, and timing of multiple objects , priority or importance, etc.
  • the first SUL carrier and the second SUL carrier may be the same SUL carrier or different SUL carriers, and this name does not indicate the frequency, priority or importance of the two SUL carriers, etc. s difference.
  • 5G NR wireless communication systems are deployed in higher frequency bands to obtain larger communication bandwidth.
  • high frequency bands will lead to larger path loss, penetration loss, etc., making the coverage performance of NR far inferior to that of LTE and LTE-A.
  • an NR cell in addition to a NUL carrier, can also be configured with an additional SUL carrier, and the frequency of the SUL carrier is lower than that of the NUL carrier, which can effectively improve the uplink of NR.
  • Override performance For an NR cell configured with a SUL carrier, random access resources are configured on the initial access BWP of the NUL carrier and the SUL carrier, respectively.
  • the UE can select an uplink from the NUL carrier and the SUL carrier according to the RSRP threshold in the system message.
  • the carrier initiates random access.
  • the UE Before initiating random access, the UE first measures the synchronization signal block (SSB) or the channel state information reference signal (CSI-RS) to obtain the RSRP, and then the UE combines the RSRP with the system message compared to the RSRP threshold (rsrp-ThresholdSSB-SUL).
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • the UE selects the random access resource on the SUL carrier to send the preamble, otherwise, the UE selects the random access resource on the NUL carrier to send the preamble.
  • the distance between the UE and the base station is relatively close, and the RSRP measured by the UE may be greater than or equal to the RSRP threshold; and if the UE is located in the ellipse area to the right, then The distance between the UE and the base station is relatively far, for example, the UE may be at the edge of a cell, and the RSRP measured by the UE may be less than the RSRP threshold.
  • the current UE's understanding of the RSRP threshold is based on the fact that the frequency of the SUL carrier is lower than the frequency of the NUL carrier. If the frequency of the SUL carrier is higher than the frequency of the NUL carrier, the UE cannot select the uplink carrier, so that the UE cannot initiate random access.
  • the network device may indicate the state through indication information, and the state may also be regarded as a selection rule.
  • the first state corresponds to a selection rule. If the indication information corresponding to the first SUL carrier indicates the first state, then , if the measured RSRP is greater than the RSRP threshold corresponding to the first SUL carrier, the UE can select the first SUL carrier, otherwise the UE does not select the first SUL carrier. That is to say, the embodiment of the present application provides a method for determining the uplink carrier.
  • the UE can determine the uplink carrier, thus, the flexibility of the SUL carrier configuration and the success rate of the UE in determining the uplink carrier are improved, so that the UE can normally send the uplink signal on the determined uplink carrier.
  • the technical solutions provided in the embodiments of this application can be applied to 4G systems, such as LTE systems, or can be applied to 5G systems, such as NR systems, or can also be applied to next-generation mobile communication systems or other similar communication systems. No restrictions.
  • the technical solutions provided in the embodiments of the present application can be applied to a device-to-device (D2D) scenario, such as an NR-D2D scenario, or can be applied to a vehicle to everything (V2X) scenario, such as NR-V2X scenarios, etc., for example, can be applied to the Internet of Vehicles, such as V2X, vehicle-to-vehicle (V2V), etc., or can be used in fields such as intelligent driving, assisted driving, or intelligent networked vehicles.
  • D2D device-to-device
  • V2X vehicle to everything
  • V2X vehicle to everything
  • V2V2X vehicle-to-vehicle
  • FIG. 2 is an application scenario of the embodiment of the present application.
  • FIG. 2 includes access network equipment, core network equipment and UE.
  • FIG. 2 takes one UE as an example, and there may actually be multiple UEs.
  • the UE is configured with a NUL carrier and is also configured with at least one SUL carrier.
  • the UE can select an uplink carrier from at least one SUL carrier and the NUL carrier, and then send an uplink signal on the uplink carrier, and the access network device receives the uplink carrier. Signal.
  • the access network device for example, works in the Evolved UMTS terrestrial radio access (E-UTRA) system, or works in the NR system, or works in the next generation communication system or other communication systems middle.
  • the access network device is, for example, a base station.
  • the access network equipment corresponds to different equipment in different systems, for example, in a 4G system, it may correspond to an eNB, and in a 5G system, it corresponds to an access network equipment in 5G, such as a gNB.
  • the technical solutions provided in the embodiments of the present application can also be applied to future mobile communication systems, so the access network equipment in FIG. 2 can also correspond to network equipment in future mobile communication systems.
  • FIG. 2 takes the access network device being a base station as an example.
  • the access network device may also be a device such as an RSU.
  • the UE in FIG. 2 takes a mobile phone as an example.
  • the UE in the embodiment of the present application is not limited to the mobile phone.
  • the UE may be configured with one NUL carrier, and may be configured with at least one SUL carrier (or may be configured with one or more SUL carriers). If the number of at least one SUL carrier is 1, the frequency of the SUL carrier may be higher than the frequency of the NUL carrier, or the frequency of the SUL carrier may also be lower than the frequency of the NUL carrier.
  • the frequencies of all SUL carriers in at least one SUL carrier may be greater than the frequency of the NUL carrier, or the frequencies of all SUL carriers in at least one SUL carrier may be lower than the frequency of the NUL carrier or, the frequency of part of the SUL carriers in at least one SUL carrier is greater than the frequency of the NUL carrier, and the frequencies of the remaining SUL carriers are less than the frequency of the SUL carrier.
  • Embodiments of the present application provide a first method for sending and receiving signals. Please refer to FIG. 3 , which is a flowchart of the method. In the following introduction process, the method is applied to the network architecture shown in FIG. 2 as an example.
  • the method is performed by the network device and the UE as an example. This is because the embodiment of the present application is applied to the network architecture shown in FIG. 2 as an example. Therefore, the network device described below is, for example, an access network device in the network architecture shown in FIG. 2 , and the UE described below may be a UE in the network architecture shown in FIG. 2 .
  • the network device sends configuration information of at least one SUL carrier, and correspondingly, the UE receives configuration information of at least one SUL carrier from the network device.
  • the configuration information of at least one SUL carrier can be used to determine the uplink carrier.
  • the network device can send the configuration information of at least one SUL carrier by unicast, then the UE can receive the configuration information of at least one SUL carrier; or, the network device may also send the configuration information of at least one SUL carrier by broadcast, then There may be multiple UEs that can receive the configuration information of at least one SUL carrier, and the UE described in S31 is one of the UEs.
  • the network device may send configuration information of at least one SUL carrier, where one SUL carrier corresponds to one configuration information, or in other words, one configuration information can be used to configure one SUL carrier, that is, the configuration information and the SUL carrier are in a one-to-one correspondence .
  • the at least one SUL carrier includes a first SUL carrier, and the first SUL carrier is, for example, any one SUL carrier in the at least one SUL carrier.
  • the configuration information of the first SUL carrier may include indication information, and may also include the first RSRP threshold.
  • the indication information may indicate the first state or the second state. Different states correspond to different selection rules.
  • the first RSRP threshold is the first SUL carrier. Corresponding RSRP threshold.
  • different configuration information may include corresponding indication information, and include corresponding RSRP thresholds, that is, parameters included in the configuration information of at least one SUL carrier (the parameters here include indication information and RSRP). Threshold) may be the same, but the value of the parameter (for example, the state indicated by the indication information, and/or the value of the RSRP threshold) may be different.
  • at least one SUL carrier further includes a second SUL carrier, and the configuration information of the second SUL carrier may also include indication information and an RSRP threshold.
  • the indication information included in the configuration information of the first SUL carrier is called indication information 1
  • the RSRP threshold included in the configuration information of the first SUL carrier is called RSRP threshold 1
  • the indication information included in the configuration information of the second SUL carrier is called indication information 2
  • the RSRP threshold included in the configuration information of the second SUL carrier is called is RSRP threshold 2
  • RSRP threshold 1 and RSRP threshold 2 may be different, and the state indicated by indication information 1 and the state indicated by indication information 2 may be the same or different.
  • indication information 1 and indication information 2 both indicate the first state or Both indicate the second state.
  • the indication information 1 indicates the first state and the indication information 2 indicates the second state, or the indication information 1 indicates the second state and the indication information 2 indicates the first state.
  • the network device will send the supplementary uplink parameters corresponding to the SUL carrier.
  • the configuration information described in the embodiments of this application is included in the supplementary uplink parameters corresponding to the SUL carrier, and one SUL carrier corresponds to one SUL carrier.
  • the uplink parameters are supplemented, so that when at least one SUL carrier includes N SUL carriers, the network device sends N supplementary uplink parameters, which is equivalent to sending N pieces of configuration information.
  • the network device sends at least one supplementary uplink parameter through a system message, such as a system information block (system information block, SIB) message.
  • SIB system information block
  • At least one configuration information, or at least one supplementary uplink parameter can be included in one message, so that when at least one SUL carrier includes N SUL carriers, the N SUL carriers correspond to only one message for supplementing the uplink parameter,
  • this message includes N pieces of sub-information, which are independent of each other, and one sub-information corresponds to one SUL carrier, that is, one supplementary uplink parameter corresponding to one SUL carrier can be regarded as a piece of information included in this message sub information.
  • N supplementary uplink parameters are included in N information elements of the system message, and one information element includes one supplementary uplink parameter, so that the UE will not confuse different supplementary uplink parameters.
  • the information element described here is, for example, an information element (information element, IE).
  • the network device should include a configuration information in the supplementary uplink parameter corresponding to a SUL carrier.
  • the network device includes the configuration information in the random access configuration parameter (RACH-ConfigCommon) in the supplementary uplink parameter.
  • RACH-ConfigCommon random access configuration parameter
  • FIG. 4 is a schematic diagram of supplementary uplink parameters corresponding to one SUL carrier.
  • the supplementary uplink parameters include random access configuration parameters, and the random access configuration parameters include configuration information corresponding to the SUL carrier, the configuration information including the RSRP threshold corresponding to the SUL carrier, and the indication information corresponding to the SUL carrier.
  • the threshold corresponding to the SUL carrier may be represented as rsrp-ThresholdSSB-SUL, and the indication information corresponding to the SUL carrier may be represented as rsrp-ConditionSSB-SUL.
  • the network device may also include the configuration information in other parameters included in the supplementary uplink parameters, or the network device may also add a new parameter, or a new cell, in the supplementary uplink parameter, and the configuration information is included by the newly added parameter .
  • the indication information may indicate the selection rule corresponding to one SUL carrier.
  • the indication information may indicate the first state or the second state, and the first state and the second state may be understood as two selection rules. These two states are, for example:
  • the SUL carrier In the first state, when the measured RSRP is greater than the RSRP threshold corresponding to the SUL carrier, the SUL carrier is selected; otherwise, the SUL carrier is not selected.
  • the SUL carrier In the second state, when the measured RSRP is less than the RSRP threshold corresponding to the SUL carrier, the SUL carrier is selected, otherwise the SUL carrier is not selected.
  • the indication information corresponding to a SUL carrier indicates the first state, it can be understood that if the RSRP measured by the UE is greater than the RSRP threshold corresponding to the SUL carrier, the SUL carrier is selected, otherwise, the SUL carrier is not selected.
  • the indication information corresponding to a SUL carrier indicates the second state, it can be understood that if the RSRP measured by the UE is less than the RSRP threshold corresponding to the SUL carrier, the SUL carrier is selected, otherwise, the SUL carrier is not selected.
  • the network device can indicate the corresponding selection rule, or the corresponding state, without the need for the UE to determine the selection rule corresponding to a SUL carrier, which can reduce the workload of the UE, and can make the present application implement
  • the method provided in this example is applied to more UEs with limited capabilities. For example, UEs with limited capabilities due to reduced bandwidth, reduced number of antennas, or performance impacts such as half-duplex mode.
  • the indication information may include the content of the indicated state. For example, if the indication information is to indicate the first state, the indication information includes information used to indicate that the measured RSRP is greater than the RSRP threshold corresponding to the SUL carrier. In this way, the instructions can be made clearer.
  • the content of the first state and the content of the second state may be pre-configured in the UE, or specified by a protocol, and the indication information does not need to include the specific content of the state.
  • the indication information may include one or more bits, and different state values of the one or more bits are used to indicate different states.
  • the indication information including one bit as an example, for example, if the bit takes a value of "1”, it indicates that the first state is indicated, and if the bit takes a value of "0", it indicates that the second state is indicated. In this way, the overhead caused by the indication information can be saved.
  • the network device may also send priority information of at least one SUL carrier.
  • the priority information of one SUL carrier may also be included in the configuration information of the SUL carrier, that is, the configuration information of at least one SUL carrier sent by the network device includes the priority information of at least one SUL carrier, of which one The configuration information includes priority information, and the priority information included in the configuration information is used to indicate the priority of the SUL carrier corresponding to the configuration information.
  • the at least one SUL carrier includes the first SUL carrier, and the configuration information of the first SUL carrier may include priority information of the first SUL carrier.
  • the network device can send the RSRP threshold of the SUL carrier, the indication information corresponding to the SUL carrier, and the priority information of the SUL carrier together through the supplementary uplink parameters of the SUL carrier, so that the UE can obtain these information together.
  • FIG. 5 is a schematic diagram of supplementary uplink parameters corresponding to one SUL carrier.
  • the supplementary uplink parameters include random access configuration parameters, and the random access configuration parameters include configuration information corresponding to the SUL carrier, and the configuration information includes the RSRP threshold corresponding to the SUL carrier, the indication information corresponding to the SUL carrier, and the SUL carrier.
  • Carrier priority information For example, the threshold corresponding to the SUL carrier may be represented as rsrp-ThresholdSSB-SUL, the indication information corresponding to the SUL carrier may be represented as rsrp-ConditionSSB-SUL, and the priority information of the SUL carrier may be represented as rsrp-PrioritySSB-SUL.
  • the network device may also include the priority information in other parameters included in the supplementary uplink parameters, or the network device may also add new parameters or new cells in the supplementary uplink parameters. cells to include priority information.
  • one configuration information may include the priority of one SUL carrier, and different configuration information corresponds to different SUL carriers, so that the indication of the priority of each SUL carrier is clearer.
  • the priority of at least one SUL carrier may be default or specified by a protocol, so the network device does not need to send priority information.
  • the priority may not be set for at least one SUL carrier, and the network device does not need to send priority information.
  • the UE determines the uplink carrier according to at least one indication information, the measured RSRP and at least one RSRP threshold.
  • the uplink carrier determined by the UE is called the first uplink carrier.
  • the network device also sends a reference signal, which the UE can then receive from the network device.
  • the reference signal is, for example, a synchronization signal block (synchronization signal block, SSB) or a channel state information reference signal (channel state information reference signal, CSI-RS), etc.
  • the step of sending the reference signal by the network device may occur before S31, or occur at After S31, or at the same time as S31.
  • the UE may measure the reference signal to obtain the measured RSRP. Then, if at least one SUL carrier does not correspond to a priority, for example, the network device does not send at least one priority information, or the priority of at least one SUL carrier is not defaulted, and the protocol does not specify the priority of at least one SUL carrier, the UE can according to The first uplink carrier is determined by at least one indication information, the measured RSRP, and at least one RSRP threshold.
  • the UE may, according to the at least one indication information , the measured RSRP, the priority of at least one SUL carrier, and the at least one RSRP threshold to determine the first uplink carrier.
  • whether the UE can select the SUL carrier is determined by comparing the measured RSRP with the RSRP threshold of the SUL carrier. If the UE determines the first uplink carrier without considering the priority of the SUL carrier, the UE may compare the measured RSRP with some or all of the RSRP thresholds in the at least one RSRP threshold in any order, and determine the first uplink carrier according to the comparison result. an upstream carrier.
  • the UE may compare the measured RSRPs with all RSRP thresholds in at least one RSRP threshold in any order, and after all the comparisons are completed, determine the first uplink carrier according to all the comparison results.
  • at least one SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, SUL2 corresponds to RSRP threshold 2, the indication information corresponding to SUL0 indicates the first state, and the indication information corresponding to SUL1 indicates the second state, The indication information corresponding to SUL2 indicates the second state.
  • the UE can compare the measured RSRP with the three RSRP thresholds respectively. limit. For example, the UE compares the measured RSRP with the RSRP threshold 0 to determine whether the measured RSRP is greater than the RSRP threshold 0. If the measured RSRP is greater than the RSRP threshold 0, the UE may select SUL0, otherwise, the UE does not select SUL0. The UE compares the measured RSRP with the RSRP threshold 1 to determine whether the measured RSRP is less than the RSRP threshold 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1, otherwise, the UE does not select SUL1.
  • the UE compares the measured RSRP with the RSRP threshold 2 to determine whether the measured RSRP is less than the RSRP threshold 2. If the measured RSRP is less than the RSRP threshold 2, the UE may select SUL2, otherwise, the UE does not select SUL2.
  • the multiple SUL carriers include SUL0 and SUL1, where the frequency of SUL0 is higher than that of NUL, and the frequency of SUL1 is lower than that of NUL.
  • the indication information configured for SUL0 by the network device indicates the first state
  • the indication information configured for SUL1 indicates the second state.
  • the UE Before initiating random access, the UE first measures the SSB or CSI-RS to obtain the measured RSRP, and then the UE compares the measured RSRP with an RSRP threshold of 0.
  • the UE can select SUL0 as the first uplink carrier, otherwise, the UE does not select SUL0.
  • the UE compares this measured RSRP to an RSRP threshold of 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1 as the first uplink carrier, otherwise, the UE does not select SUL1.
  • the UE determines that SUL1 is the first uplink carrier, or the measured RSRP threshold is less than the RSRP threshold 0 and greater than the RSRP threshold 1, then the UE determines that the NUL is the first uplink carrier Upstream carrier.
  • the distance between the UE and the base station is relatively close, and the RSRP measured by the UE may be greater than the RSRP threshold 0; if the UE is located in the middle ellipse area, the UE and the base station If the distance from the base station is moderate, the RSRP measured by the UE may be greater than the RSRP threshold of 0 and less than the RSRP threshold of 1; and if the UE is located in the ellipse area to the right, the distance between the UE and the base station is relatively long, for example, the UE may be at the edge of the cell , the RSRP measured by the UE may be less than the RSRP threshold 1.
  • the RSRP measured by the UE may only satisfy the selection rule of one of the SUL carriers, then the UE may determine that the SUL carrier is the first uplink carrier.
  • the SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, SUL2 corresponds to RSRP threshold 2, and the indication information corresponding to SUL0 indicates the first state, and the indication information corresponding to SUL1 and SUL2 Indicates the second state. If the RSRP measured by the UE is greater than the RSRP threshold 0, and does not meet the RSRP threshold 1 or less than the RSRP threshold 2, then the UE determines that SUL0 is the first uplink carrier.
  • the RSRP measured by the UE may also satisfy the selection rules of multiple SUL carriers, so the UE may determine one of the SUL carriers as the first uplink carrier, for example, by random determination, or it may also determine that the frequency is higher or lower SUL carrier is the first uplink carrier. For example, if the RSRP measured by the UE is not greater than the RSRP threshold 0, and less than the RSRP threshold 1, and less than the RSRP threshold 2, then the UE may randomly determine SUL1 or SUL2 as the first uplink carrier, or the UE may determine the frequency between SUL1 and SUL2 The higher or lower is the first uplink carrier.
  • the RSRP measured by the UE may not satisfy the selection rules of all SUL carriers, and the UE may determine the NUL carrier as the first uplink carrier.
  • the selection rule of a SUL carrier can also be regarded as the relationship between the measured RSRP, the RSRP threshold corresponding to the SUL carrier, and the state indicated by the indication information corresponding to the SUL carrier. For example, if the UE determines that none of SUL0, SUL1 and SUL2 is selected after comparing RSRP threshold 0, RSRP threshold 1 and RSRP threshold 2, the UE can select the NUL carrier as the first uplink carrier.
  • the UE determines the first uplink carrier after comparing the measured RSRP with all of the at least one RSRP thresholds. Or it is also possible that the UE can determine the first uplink carrier only by comparing the measured RSRP with a part of the at least one RSRP threshold.
  • At least one SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, and SUL2 corresponds to RSRP threshold 2, where RSRP threshold 0>RSRP threshold 2>RSRP threshold 1.
  • the indication information corresponding to SUL0 indicates the first state
  • the indication information corresponding to SUL1 indicates the second state
  • the indication information corresponding to SUL2 indicates the first state. Because this is the case where there is no priority, the chances of each uplink carrier being selected should be equal, so when comparing, there is no restriction on the execution order of the UE.
  • the UE first compares the measured RSRP with the RSRP threshold 0 to determine whether the measured RSRP is greater than the RSRP threshold 0. If the measured RSRP is greater than the RSRP threshold 0, the UE can select SUL0, otherwise, the UE does not select SUL0. For example, the comparison result is that the measured RSRP is less than the RSRP threshold 0. Next, the UE compares the measured RSRP with the RSRP threshold 1 to determine whether the measured RSRP is less than the RSRP threshold 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1, otherwise, the UE does not select SUL1.
  • the comparison result is that the measured RSRP is less than the RSRP threshold 1, and the selection rule corresponding to SUL2 is to select SUL2 if the measured RSRP is greater than the RSRP threshold 2, then, since the RSRP threshold 1 ⁇ RSRP threshold 2, since the measured RSRP is already less than the RSRP threshold 1, it is impossible to be greater than the RSRP threshold 2, so the UE does not need to compare the measured RSRP with the RSRP threshold 2, but can determine SUL1 as the first uplink carrier.
  • the RSRP measured by the UE may only satisfy the selection rule of one of the SUL carriers, or may also satisfy the selection rule of multiple SUL carriers. If the selection rule of multiple SUL carriers is satisfied, how does the UE determine For the first uplink carrier, reference may be made to the foregoing introduction.
  • the UE may be able to determine the first uplink carrier after comparing the measured RSRP with a partial RSRP threshold, if the first uplink carrier is a NUL carrier, the UE still needs to compare the measured RSRP with the full RSRP After the thresholds are compared, if none of the selection rules are met, it can be determined that the NUL carrier is the first uplink carrier.
  • the embodiment of the present application provides another way.
  • the UE may also measure the It can be determined that the NUL carrier is the first uplink carrier after the RSRP is compared with a part of the RSRP thresholds in at least one RSRP threshold, without comparing all the RSRP thresholds.
  • the UE records all SUL carriers whose corresponding indication information indicates the first state as a class A SUL carrier, and records the SUL carrier with the smallest corresponding RSRP threshold among the class A SUL carriers as a SUL_A carrier.
  • the SUL carriers whose corresponding indication information indicates the second state are all denoted as B-type carriers, and the SUL carrier with the largest corresponding RPRP threshold among the B-type SUL carriers is denoted as SUL_B carrier.
  • the UE sequentially compares the measured RSRP with at least one RSRP threshold in any order.
  • the UE may determine that the NUL carrier is the first uplink carrier, and if there is an uncompared RSRP threshold, no further comparison is required.
  • At least one SUL carrier includes SUL0, SUL1, SUL2 and SUL3, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, SUL2 corresponds to RSRP threshold 2, SUL3 corresponds to RSRP threshold 3, the indication information corresponding to SUL0 indicates the first state, and SUL1 The corresponding indication information indicates the second state, the indication information corresponding to SUL2 indicates the first state, and the indication information corresponding to SUL3 indicates the second state. Then the UE records SUL0 and SUL2 as class A carriers, and records SUL1 and SUL3 as class B carriers.
  • RSRP threshold 1>RSRP threshold 3 the UE records SUL2 as the SUL_A carrier and SUL1 as the SUL_B carrier.
  • the UE sequentially compares the measured RSRP with at least one RSRP threshold in any order. For example, the UE first compares the measured RSRP with the RSRP threshold 0. For example, the comparison result is that the measured RSRP is less than the RSRP threshold 0, then the UE does not select SUL0, and will The measured RSRP is compared to an RSRP threshold of 1.
  • the comparison result is that the measured RSRP is greater than the RSRP threshold 1, the UE does not select SUL1, and compares the measured RSRP with the RSRP threshold 2. For example, the comparison result is that the measured RSRP is less than the RSRP threshold 2.
  • the comparison between the SUL_A carrier and the SUL_B carrier has ended, and neither of them conforms to the selection rule.
  • the UE can determine that the NUL carrier is the first uplink carrier. No need to compare the RSRP threshold 3.
  • the UE may compare the measured RSRP with some or all of the RSRP thresholds in the at least one RSRP threshold in the order of priority from high to low, respectively. , and determine the first uplink carrier according to the comparison result. In this manner, the UE may determine the first uplink carrier after comparing the measured RSRP with all of the at least one RSRP threshold, or may compare the measured RSRP with a part of the at least one RSRP threshold After the comparison, the first uplink carrier can be determined.
  • At least one SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, and SUL2 corresponds to RSRP threshold 2, where the priority of SUL0>the priority of SUL1>the priority of SUL2.
  • the indication information corresponding to SUL0 indicates the first state
  • the indication information corresponding to SUL1 indicates the second state
  • the indication information corresponding to SUL2 indicates the second state. Because this is the case of the existence of priorities, when comparing, the UE may compare the measured RSRP with the RSRP threshold in order from high to low priority.
  • the UE first compares the measured RSRP with the RSRP threshold 0 to determine whether the measured RSRP is greater than the RSRP threshold 0. If the measured RSRP is greater than the RSRP threshold 0, the UE can select SUL0; otherwise, the UE does not Select SUL0. For example, the comparison result is that the measured RSRP is less than the RSRP threshold 0. Next, the UE compares the measured RSRP with the RSRP threshold 1 to determine whether the measured RSRP is less than the RSRP threshold 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1, otherwise, the UE does not select SUL1.
  • the comparison result is that the measured RSRP is less than the RSRP threshold 1, then the UE can determine that SUL1 is the first uplink carrier, and there is no need to compare the measured RSRP with the RSRP threshold 2.
  • the UE can select a high-priority uplink carrier as much as possible to improve the communication quality of the UE, and also can save the comparison process of the UE and reduce the power consumption of the UE.
  • the RSRP measured by the UE may not satisfy the selection rules of all SUL carriers, and the UE may determine the NUL carrier as the first uplink carrier. For example, if the UE determines that none of SUL0, SUL1 and SUL2 is selected after comparing RSRP threshold 0, RSRP threshold 1 and RSRP threshold 2, the UE can select the NUL carrier as the first uplink carrier.
  • the UE may be able to determine the first uplink carrier after comparing the measured RSRP with a partial RSRP threshold, if the first uplink carrier is a NUL carrier, the UE still needs to compare the measured RSRP with the full RSRP After the thresholds are compared, if none of the selection rules are met, it can be determined that the NUL carrier is the first uplink carrier.
  • the embodiment of the present application provides another way.
  • the UE may also measure the RSRP It can be determined that the NUL carrier is the first uplink carrier after comparing with a part of the RSRP thresholds in the at least one RSRP threshold, without comparing all the RSRP thresholds.
  • the UE records all SUL carriers whose corresponding indication information indicates the first state as a class A SUL carrier, and records the SUL carrier with the smallest corresponding RSRP threshold among the class A SUL carriers as a SUL_A carrier.
  • the SUL carriers whose corresponding indication information indicates the second state are all marked as B-type carriers, and the SUL carrier with the largest corresponding RSRP threshold among the B-type SUL carriers is marked as SUL_B carrier.
  • the UE sequentially compares the measured RSRP with at least one RSRP threshold in order of priority from high to low.
  • the UE After comparing the measured RSRP with the RSRP threshold corresponding to the SUL_A carrier, and comparing the measured RSRP with the RSRP threshold corresponding to the SUL_B carrier, if the measured RSRP does not meet the RSRP threshold corresponding to the SUL_A carrier, the measured RSRP and the corresponding The relationship between the states, and the measured RSRP does not meet the RSRP threshold corresponding to the SUL_B carrier, the relationship between the measured RSRP and the corresponding state, then the UE can determine that the NUL carrier is the first uplink carrier.
  • RSRP threshold no need to compare.
  • the difference from the foregoing is that in the foregoing example, the UEs are compared in any order, but here the UEs are compared in descending order of priority.
  • a configuration error may occur.
  • the RSRP threshold configured for a SUL carrier with a higher frequency is larger, but if the network equipment makes an error, it may occur that the RSRP threshold configured for a SUL carrier with a lower frequency is greater than that configured for a SUL carrier with a higher frequency.
  • the case of the RSRP threshold if the UE selects the uplink carrier according to the normal selection process as described above, an error may occur, for example, the uplink carrier may not be selected.
  • the embodiments of the present application provide a fault tolerance mechanism, so that the UE can select an uplink carrier even when the network device is configured incorrectly.
  • the UE only compares the measured RSRP with one of the RSRP thresholds, and determines the first uplink carrier according to the comparison result. For example, if the network device is configured with at least one RSRP threshold, the UE selects one RSRP threshold from it, and compares the measured RSRP with the RSRP threshold. Wherein, if at least one SUL carrier corresponds to priority information, when selecting an RSRP threshold from at least one RSRP threshold, the UE can select the RSRP threshold corresponding to the SUL carrier with the highest priority, and if at least one SUL carrier does not correspond priority information, the UE can randomly select an RSRP threshold.
  • the UE determines that the SUL carrier corresponding to the RSRP threshold is the first uplink carrier; otherwise, the UE determines that the SUL carrier corresponding to the RSRP threshold is the first uplink carrier. It is determined that the second uplink carrier is the first uplink carrier, and the second uplink carrier is one SUL carrier among other SUL carriers except the SUL carrier.
  • the UE determines that the SUL carrier corresponding to the RSRP threshold is the first uplink carrier, otherwise, the UE determines The second uplink carrier is the first uplink carrier.
  • the second uplink carrier may be any SUL carrier other than the first uplink carrier in the at least one SUL carrier; or, if at least one SUL carrier corresponds to priority information, Then the second uplink carrier may be the SUL carrier with the highest priority other than the first uplink carrier in the at least one SUL carrier.
  • the at least one SUL carrier includes SUL0 and SUL1, for example, SUL0 is also referred to as the first SUL carrier, and SUL1 is referred to as the second uplink carrier.
  • the network device configures RSRP threshold 0 for SUL0 and RSRP threshold 1 for SUL1.
  • RSRP threshold 0 is also referred to as the first RSRP threshold
  • RSRP threshold 1 is referred to as the second RSRP threshold.
  • the frequency of SUL0 is greater than the frequency of SUL1, and the RSRP threshold 0 should be greater than the RSRP threshold 1, but the RSRP threshold 0 configured by the network device is less than the RSRP threshold 1.
  • both SUL0 and SUL1 correspond to priority information, for example, the priority of SUL0 is greater than the priority of SUL1, the UE may select an RSRP threshold of 0 to compare with the measured RSRP. If the indication information corresponding to SUL0 indicates the first state, then, if the measured RSRP is greater than the RSRP threshold 0, the UE determines that SUL0 is the first uplink carrier, otherwise, determines that SUL1 is the first uplink carrier; or, if the indication information corresponding to SUL0 The second state is indicated, then, if the measured RSRP is less than the RSRP threshold 0, the UE determines that SUL0 is the first uplink carrier, otherwise, determines that SUL1 is the first uplink carrier.
  • the UE may select RSRP threshold 0 or RSRP threshold 1 to compare with the measured RSRP, for example, the UE selects RSRP threshold 1. Then, if the indication information corresponding to SUL1 indicates the first state, then, if the measured RSRP is greater than the RSRP threshold 1, the UE determines that SUL1 is the first uplink carrier, otherwise, determines that SUL0 is the first uplink carrier; The indication information indicates the second state, then, if the measured RSRP is less than the RSRP threshold 1, the UE determines that SUL1 is the first uplink carrier, otherwise, determines that SUL0 is the first uplink carrier.
  • the UE can still select the first uplink carrier, so that the subsequent uplink signal transmission can be completed.
  • the UE sends an uplink signal on the first uplink carrier, and the network device receives the uplink signal from the UE on the first uplink carrier.
  • the UE may send the uplink signal through the first uplink carrier. Since the network device cannot determine which uplink carrier the UE has selected, the network device may perform blind detection on at least one SUL carrier and NUL carrier to receive the uplink signal. For example, if the network device can successfully detect on one uplink carrier, the network device receives the uplink signal on the one uplink carrier, and at this time, the one uplink carrier is the first uplink carrier.
  • the uplink signal is, for example, a preamble in the random access process, or other uplink signals, such as other uplink signals in the random access process, or other uplink signals after successful random access.
  • the network device may indicate the state through indication information, and the state may also be regarded as a selection rule.
  • the first state corresponds to a selection rule. If the indication information corresponding to the first SUL carrier indicates the first state, then , if the measured RSRP is greater than the RSRP threshold corresponding to the first SUL carrier, the UE can select the first SUL carrier, otherwise the UE does not select the first SUL carrier. That is to say, the embodiment of the present application provides a method for determining the uplink carrier.
  • the UE can determine the uplink carrier, thus, the success rate of the UE in determining the uplink carrier is improved, so that the UE can normally send the uplink signal on the determined uplink carrier.
  • FIG. 7 is a flowchart of the method.
  • the method is applied to the network architecture shown in FIG. 2 as an example.
  • the method is performed by the network device and the UE as an example. This is because the embodiment of the present application is applied to the network architecture shown in FIG. 2 as an example. Therefore, the network device described below is, for example, an access network device in the network architecture shown in FIG. 2 , and the UE described below may be a UE in the network architecture shown in FIG. 2 .
  • the network device sends configuration information of at least one SUL carrier, and accordingly, the UE receives configuration information of at least one SUL carrier from the network device.
  • the network device can send the configuration information of at least one SUL carrier by unicast, then the UE can receive the configuration information of at least one SUL carrier; or, the network device may also send the configuration information of at least one SUL carrier by broadcast, then There may be multiple UEs that can receive the configuration information of at least one SUL carrier, and the UE described in S71 is one of the UEs.
  • the network device may send configuration information of at least one SUL carrier, where one SUL carrier corresponds to one configuration information, or in other words, one configuration information may be used to configure one SUL carrier, that is, the configuration information and the SUL carrier are in a one-to-one correspondence.
  • the at least one SUL carrier includes a first SUL carrier, and the first SUL carrier is, for example, any one SUL carrier in the at least one SUL carrier.
  • the configuration information of the first SUL carrier may include a first RSRP threshold, and the first RSRP threshold is an RSRP threshold corresponding to the first SUL carrier.
  • different configuration information may include the RSRP threshold, that is, the parameters included in the configuration information of at least one SUL carrier (the parameters here include the RSRP threshold) may be the same, but the values of the parameters (for example, The value of the RSRP threshold) may be different.
  • at least one SUL carrier further includes a second SUL carrier, and the configuration information of the second SUL carrier may also include an RSRP threshold.
  • the RSRP threshold included in the configuration information of the first SUL carrier is called RSRP threshold 1
  • the first The RSRP threshold included in the configuration information of the two SUL carriers is called RSRP threshold 2, so RSRP threshold 1 and RSRP threshold 2 may be different.
  • the network device will send the supplementary uplink parameters corresponding to the SUL carrier.
  • the configuration information described in the embodiments of this application is included in the supplementary uplink parameters corresponding to the SUL carrier, and one SUL carrier corresponds to one supplementary uplink parameter , so that for at least one SUL carrier, the network device sends at least one supplementary uplink parameter, which is equivalent to sending at least one configuration information.
  • the manner in which the network device includes the configuration information in the supplementary uplink parameters please refer to the description of S31 in the embodiment shown in FIG. 3 , but in the embodiment of the present application, the configuration information does not include the implementation shown in FIG. 3 the instructions described in the example.
  • the network device may also send priority information of at least one SUL carrier.
  • the priority information of one SUL carrier may also be included in the configuration information of the SUL carrier, that is, the configuration information of at least one SUL carrier sent by the network device includes the priority information of at least one SUL carrier, of which one The configuration information includes priority information, and the priority information included in the configuration information is used to indicate the priority of the SUL carrier corresponding to the configuration information.
  • the at least one SUL carrier includes the first SUL carrier, and the configuration information of the first SUL carrier may include priority information of the first SUL carrier.
  • the configuration information does not include the implementation shown in FIG. 3 the instructions described in the example.
  • the priority of at least one SUL carrier may be default or specified by a protocol, so the network device does not need to send priority information.
  • the priority may not be set for at least one SUL carrier, and the network device does not need to send priority information.
  • the UE determines the frequency of at least one SUL carrier, and determines the frequency of the NUL carrier.
  • the network device configures the frequency of at least one SUL carrier and the frequency of the NUL carrier through signaling, and the UE can determine the frequency of at least one SUL carrier and the frequency of the NUL carrier according to the signaling from the network device.
  • the network device may also include the frequency information of the SUL carrier in the configuration information, then at least one configuration information sent by the network device in S71 includes the frequency information of at least one SUL carrier, wherein the configuration information and the frequency information are in a one-to-one correspondence Relationship.
  • the network device may not include the frequency information of the SUL carrier in the configuration information, but send the frequency information of the SUL carrier through other information. Then the network device can send frequency information of at least one SUL carrier, and the frequency information of at least one SUL carrier can be sent in a message, such as a system message, or other messages. If the message is a system message, the message The system message and the system message where the at least one configuration information is located may be the same system message, or may be different system messages.
  • the step of sending the frequency information of the at least one SUL carrier by the network device may occur before S71, or may also occur after S71, or also Can occur simultaneously with S71.
  • the network device may also send configuration information.
  • the configuration information sent by the network device to the NUL carrier may be referred to as first information, and the first information may include the frequency of the NUL carrier.
  • the configuration information of at least one SUL carrier and the first information may be included in the same message, or may also be included in different messages.
  • the UE determines the uplink carrier according to the frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and the at least one RSRP threshold.
  • the uplink carrier determined by the UE is referred to as the first uplink carrier, and the first uplink carrier is, for example, one of at least one SUL carrier, or a NUL carrier.
  • the network device also sends a reference signal, which the UE can then receive from the network device.
  • the reference signal is, for example, SSB or CSI-RS.
  • the UE may measure the reference signal to obtain the RSRP.
  • the UE can according to The frequency of the at least one SUL carrier, the frequency of the NUL carrier, the measured RSRP, and at least one RSRP threshold determine the first uplink carrier.
  • the UE receives at least one priority information, or determines the priority of at least one SUL carrier by a default method or a method specified in a protocol, etc.
  • the UE can determine the priority of at least one SUL carrier according to the at least one SUL carrier
  • a selection rule may be preconfigured for the UE, or the selection rule may also be a default, or the selection rule may also be specified through a protocol.
  • the embodiment of the present application includes two selection rules, and the two selection rules are:
  • the frequency of the SUL carrier is greater than the frequency of the NUL carrier, and the measured RSRP is greater than the RSRP threshold corresponding to the SUL carrier, then the SUL carrier is selected, otherwise the SUL carrier is not selected.
  • Rule 2 The frequency of the SUL carrier is less than the frequency of the NUL carrier, and the measured RSRP is less than the RSRP threshold corresponding to the SUL carrier, then the SUL carrier is selected, otherwise the SUL carrier is not selected.
  • the frequency of the SUL carrier and the frequency of the NUL carrier can be determined. If the frequency of the SUL carrier is greater than the frequency of the NUL carrier, then rule 1 applies. In step 1, if the RSRP measured by the UE is greater than the RSRP threshold corresponding to the SUL carrier, the SUL carrier is selected, otherwise, the SUL carrier is not selected. Or, if the frequency of the SUL carrier is less than the frequency of the NUL carrier, then rule 2 applies. Under rule 2, if the RSRP measured by the UE is less than the RSRP threshold corresponding to the SUL carrier, the SUL carrier is selected, otherwise, the SUL carrier is not selected carrier.
  • the selection rules are known to the UE, and the UE can determine the selection rules applicable to a SUL carrier according to the frequency of the SUL carrier and the frequency of the NUL carrier without the need for the network device to indicate the corresponding selection rules.
  • the signaling overhead caused by the network device due to the indication selection rule is reduced.
  • whether the UE can select the SUL carrier is determined by comparing the measured RSRP with the RSRP threshold of the SUL carrier. If the UE determines the first uplink carrier without considering the priority of the SUL carrier, the UE may compare the measured RSRP with some or all of the RSRP thresholds in the at least one RSRP threshold in any order, and determine the first uplink carrier according to the comparison result. an upstream carrier.
  • the UE may compare the measured RSRPs with all RSRP thresholds in at least one RSRP threshold in any order, and after all the comparisons are completed, determine the first uplink carrier according to all the comparison results.
  • at least one SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, SUL2 corresponds to RSRP threshold 2, the frequency of SUL0 is greater than that of the NUL carrier, the frequency of SUL1 is less than the frequency of the NUL carrier, and the frequency of SUL2 The frequency is less than the frequency of the NUL carrier.
  • the UE can compare the measured RSRP with the three RSRP thresholds respectively. limit. For example, the UE compares the measured RSRP with the RSRP threshold 0 to determine whether the measured RSRP is greater than the RSRP threshold 0. If the measured RSRP is greater than the RSRP threshold 0, the UE may select SUL0, otherwise, the UE does not select SUL0. The UE compares the measured RSRP with the RSRP threshold 1 to determine whether the measured RSRP is less than the RSRP threshold 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1, otherwise, the UE does not select SUL1.
  • the UE compares the measured RSRP with the RSRP threshold 2 to determine whether the measured RSRP is less than the RSRP threshold 2. If the measured RSRP is less than the RSRP threshold 2, the UE can select SUL2, otherwise, the UE does not select SUL1. An example of this may continue to refer to FIG. 6 .
  • the RSRP measured by the UE may only satisfy the selection rule of one of the SUL carriers, then the UE may determine that the SUL carrier is the first uplink carrier.
  • the RSRP measured by the UE may also satisfy the selection rules of multiple SUL carriers, so how the UE determines the first uplink carrier can refer to the introduction to S32 in the embodiment shown in FIG. 3 .
  • the RSRP measured by the UE may not satisfy the selection rules of all SUL carriers, and the UE may determine the NUL carrier as the first uplink carrier.
  • the selection rule of a SUL carrier can also be regarded as the relationship between the measured RSRP, the RSRP threshold corresponding to the SUL carrier, the frequency of the SUL carrier, and the frequency of the NUL carrier. For example, if the UE determines that none of SUL0, SUL1 and SUL2 is selected after comparing RSRP threshold 0, RSRP threshold 1 and RSRP threshold 2, the UE can select the NUL carrier as the first uplink carrier.
  • the UE determines the first uplink carrier after comparing the measured RSRP with all of the at least one RSRP threshold, or it is also possible that the UE only needs to compare the measured RSRP with the at least one RSRP threshold
  • the first uplink carrier can be determined by comparing some of the thresholds in the .
  • At least one SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, and SUL2 corresponds to RSRP threshold 2, where RSRP threshold 0>RSRP threshold 2>RSRP threshold 1.
  • the frequency of SUL0 is higher than the frequency of the NUL carrier, the frequency of SUL1 is lower than the frequency of the NUL carrier, and the frequency of SUL2 is higher than the frequency of the NUL carrier. Because this is the case where there is no priority, the chances of each uplink carrier being selected should be equal, so when comparing, there is no restriction on the execution order of the UE.
  • the UE first compares the measured RSRP with the RSRP threshold 0 to determine whether the measured RSRP is greater than the RSRP threshold 0. If the measured RSRP is greater than the RSRP threshold 0, the UE can select SUL0, otherwise, the UE does not select SUL0. For example, the comparison result is that the measured RSRP is less than the RSRP threshold 0. Next, the UE compares the measured RSRP with the RSRP threshold 1 to determine whether the measured RSRP is less than the RSRP threshold 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1, otherwise, the UE does not select SUL1.
  • the comparison result is that the measured RSRP is less than the RSRP threshold 1, and the selection rule corresponding to SUL2 is to select SUL2 if the measured RSRP is greater than the RSRP threshold 2, then, since the RSRP threshold 1 ⁇ RSRP threshold 2, since the measured RSRP is already less than the RSRP threshold 1, it is impossible to be greater than the RSRP threshold 2, so the UE does not need to compare the measured RSRP with the RSRP threshold 2, but can determine SUL1 as the first uplink carrier.
  • the RSRP measured by the UE may only satisfy the selection rule of one of the SUL carriers, or may also satisfy the selection rule of multiple SUL carriers. If the selection rule of multiple SUL carriers is satisfied, how does the UE determine For the first uplink carrier, reference may be made to the foregoing introduction.
  • the UE may be able to determine the first uplink carrier after comparing the measured RSRP with a partial RSRP threshold, if the first uplink carrier is a NUL carrier, the UE still needs to compare the measured RSRP with the full RSRP After the thresholds are compared, if none of the selection rules are met, it can be determined that the NUL carrier is the first uplink carrier.
  • the embodiment of the present application provides another way.
  • the UE may also measure the It can be determined that the NUL carrier is the first uplink carrier after the RSRP is compared with a part of the RSRP thresholds in at least one RSRP threshold, without comparing all the RSRP thresholds.
  • the UE records all SUL carriers whose frequency is higher than that of the NUL carrier as a class A SUL carrier, and records the SUL carrier with the smallest corresponding RSRP threshold among the class A SUL carriers as a SUL_A carrier.
  • the SUL carriers whose frequency is lower than the frequency of the NUL carrier are all recorded as B-type carriers, and the SUL carrier with the largest corresponding RPRP threshold among the B-type SUL carriers is recorded as SUL_B carrier.
  • the UE sequentially compares the measured RSRP with at least one RSRP threshold in any order.
  • the UE After comparing the measured RSRP with the RSRP threshold corresponding to the SUL_A carrier, and comparing the measured RSRP with the RSRP threshold corresponding to the SUL_B carrier, if the measurement The RSRP does not meet the RSRP threshold corresponding to the SUL_A carrier, the relationship between the measured RSRP, the frequency of the SUL_A carrier, and the frequency of the NUL carrier, and the measured RSRP does not meet the RSRP threshold corresponding to the SUL_B carrier, the measured RSRP, the SUL_B carrier and the relationship between the frequency of the NUL carrier and the frequency of the NUL carrier, the UE can determine that the NUL carrier is the first uplink carrier, and if there is an uncompared RSRP threshold, no further comparison is required.
  • the network device in the embodiment of the present application does not indicate a state, and the UE can determine the judgment method according to the frequency of the SUL carrier and the frequency of the NUL carrier.
  • the UE may compare the measured RSRP with some or all of the RSRP thresholds in the at least one RSRP threshold in the order of priority from high to low, respectively. , and determine the first uplink carrier according to the comparison result. In this manner, the UE may determine the first uplink carrier after comparing the measured RSRP with all of the at least one RSRP threshold, or may compare the measured RSRP with a part of the at least one RSRP threshold After the comparison, the first uplink carrier can be determined.
  • At least one SUL carrier includes SUL0, SUL1 and SUL2, SUL0 corresponds to RSRP threshold 0, SUL1 corresponds to RSRP threshold 1, and SUL2 corresponds to RSRP threshold 2, where the priority of SUL0>the priority of SUL1>the priority of SUL2.
  • the frequency of SUL0 is higher than the frequency of the NUL carrier, the frequency of SUL1 is lower than that of the NUL carrier, and the frequency of SUL2 is lower than the frequency of the NUL carrier. Because this is the case of the existence of priorities, when comparing, the UE may compare the measured RSRP with the RSRP threshold in order from high to low priority.
  • the UE first compares the measured RSRP with the RSRP threshold 0 to determine whether the measured RSRP is greater than the RSRP threshold 0. If the measured RSRP is greater than the RSRP threshold 0, the UE can select SUL0; otherwise, the UE does not Select SUL0. For example, the comparison result is that the measured RSRP is less than the RSRP threshold 0. Next, the UE compares the measured RSRP with the RSRP threshold 1 to determine whether the measured RSRP is less than the RSRP threshold 1. If the measured RSRP is less than the RSRP threshold 1, the UE can select SUL1, otherwise, the UE does not select SUL1.
  • the comparison result is that the measured RSRP is less than the RSRP threshold 1, then the UE can determine that SUL1 is the first uplink carrier, and there is no need to compare the measured RSRP with the RSRP threshold 2.
  • the UE can select a high-priority uplink carrier as much as possible to improve the communication quality of the UE, and also can save the comparison process of the UE and reduce the power consumption of the UE.
  • the RSRP measured by the UE may not satisfy the selection rules of all SUL carriers, and the UE may determine the NUL carrier as the first uplink carrier. For example, if the UE determines that none of SUL0, SUL1 and SUL2 is selected after comparing RSRP threshold 1, RSRP threshold 2 and RSRP threshold 3, the UE can select the NUL carrier as the first uplink carrier.
  • the embodiment of the present application may also provide a fault tolerance mechanism for the case where the network device configures the RSRP threshold incorrectly.
  • the network device configures the RSRP threshold incorrectly.
  • the UE may be able to determine the first uplink carrier after comparing the measured RSRP with a partial RSRP threshold, if the first uplink carrier is a NUL carrier, the UE still needs to compare the measured RSRP with the full RSRP After the thresholds are compared, if none of the selection rules are met, it can be determined that the NUL carrier is the first uplink carrier.
  • the embodiment of the present application provides another way.
  • the UE may also measure the RSRP It can be determined that the NUL carrier is the first uplink carrier after comparing with a part of the RSRP thresholds in the at least one RSRP threshold, without comparing all the RSRP thresholds.
  • the UE records all SUL carriers whose frequency is higher than that of the NUL carrier as a class A SUL carrier, and records the SUL carrier with the smallest corresponding RSRP threshold among the class A SUL carriers as a SUL_A carrier.
  • the SUL carriers whose frequency is lower than the frequency of the NUL carrier are all recorded as B-type carriers, and the SUL carrier with the largest corresponding RPRP threshold among the B-type SUL carriers is recorded as SUL_B carrier.
  • the UE sequentially compares the measured RSRP with at least one RSRP threshold in order of priority from high to low.
  • the UE After comparing the measured RSRP with the RSRP threshold corresponding to the SUL_A carrier, and comparing the measured RSRP with the RSRP threshold corresponding to the SUL_B carrier, if the measured RSRP does not meet the RSRP threshold corresponding to the SUL_A carrier, the measured RSRP, the SUL_A carrier.
  • the relationship between the frequency of the SUL_B carrier and the frequency of the NUL carrier, and the measured RSRP does not meet the RSRP threshold corresponding to the SUL_B carrier, the measured RSRP, the frequency of the SUL_B carrier, and the relationship between the frequency of the NUL carrier then the UE can determine The NUL carrier is the first uplink carrier, and if there is an uncompared RSRP threshold, no further comparison is required.
  • the network device in the embodiment of the present application does not indicate a state, and the UE can determine the judgment method according to the frequency of the SUL carrier and the frequency of the NUL carrier.
  • S74 The UE sends an uplink signal on the first uplink carrier, and the network device receives the uplink signal from the UE on the first uplink carrier.
  • the network device does not need to indicate the selection rule, and the UE can determine the selection rule according to the frequency of the SUL carrier and the frequency of the NUL carrier, so as to select the uplink carrier. That is to say, the embodiment of the present application provides a method for determining the uplink carrier. Regardless of whether the frequency of the SUL carrier is less than the frequency of the NUL carrier or greater than the frequency of the NUL carrier, according to the method provided by the embodiment of the present application, the UE can determine the uplink carrier, Thus, the success rate of the UE in determining the uplink carrier is improved, so that the UE can normally send the uplink signal on the determined uplink carrier. Moreover, since the network device does not need to indicate the selection rule, signaling overhead can also be saved.
  • FIG. 8 is a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.
  • the communication apparatus 800 may be the terminal device shown in FIG. 2 , and is configured to implement the method for the terminal device in the foregoing method embodiments.
  • the communication apparatus may also be the network device in FIG. 2 , for implementing the method corresponding to the network device in the foregoing method embodiments. For specific functions, refer to the descriptions in the foregoing method embodiments.
  • Communication device 800 includes one or more processors 801 .
  • the processor 801 may also be referred to as a processing unit, and may implement certain control functions.
  • the processor 801 may be a general-purpose processor or a special-purpose processor or the like. For example, including: baseband processors, central processing units, application processors, modem processors, graphics processors, image signal processors, digital signal processors, video codec processors, controllers, memories, and/or Neural network processors, etc.
  • the baseband processor may be used to process communication protocols and communication data.
  • the central processing unit may be used to control the communication device 800, execute software programs and/or process data.
  • the different processors can be stand-alone devices, or they can be integrated in one or more processors, for example, on one or more application specific integrated circuits.
  • the communication apparatus 800 includes one or more memories 802 for storing instructions 804, and the instructions can be executed on the processor, so that the terminal device 800 executes the methods described in the above method embodiments.
  • the memory 802 may also store data.
  • the processor and the memory can be provided separately or integrated together.
  • one or more processors 801 may include instructions 803 (sometimes also referred to as codes or programs), and the instructions 803 may be executed on the processors 801 to cause the communication apparatus 800 to perform the above implementation method described in the example.
  • Data may be stored in the processor 801 .
  • the communication apparatus 800 may further include a transceiver 805 and an antenna 806 .
  • the transceiver 805 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, a transceiver, an input/output interface, etc., and is used to implement the transceiver function of the communication device 800 through the antenna 806 .
  • the communication device 800 may further include one or more of the following components: a wireless communication module, an audio module, an external memory interface, an internal memory, a universal serial bus (universal serial bus, USB) interface, a power management module, an antenna, Speakers, microphones, I/O modules, sensor modules, motors, cameras, or displays, etc. It can be understood that, in some embodiments, the UE 800 may include more or less components, or some components may be integrated, or some components may be split. These components may be implemented in hardware, software, or a combination of software and hardware.
  • the processor 801 and the transceiver 805 described in the embodiments of the present application may be implemented in an integrated circuit (IC), an analog IC, a radio frequency identification (RFID), a mixed-signal IC, and an application specific integrated circuit (application specific integrated circuit). integrated circuit, ASIC), printed circuit board (printed circuit board, PCB), or electronic equipment, etc.
  • IC integrated circuit
  • ASIC radio frequency identification
  • PCB printed circuit board
  • electronic equipment etc.
  • it may be an independent device (eg, an independent integrated circuit, a mobile phone, etc.), or may be a part of a larger device (eg, a module that can be embedded in other devices). The description of the terminal device and the network device will not be repeated here.
  • the embodiments of the present application provide a terminal device (for convenience of description, referred to as UE), which can be used in the foregoing embodiments.
  • the terminal device includes corresponding means, units and/or circuits for implementing the UE functions described in the embodiments shown in FIG. 2 , FIG. 3 , FIG. 6 , and/or FIG. 7 .
  • a terminal device includes a transceiver module, which is used to support the terminal device to implement a transceiver function, and a processing module, which is used to support the terminal device to process signals.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device 900 can be applied to the architecture shown in FIG. 2 .
  • FIG. 9 only shows the main components of the terminal device 900 .
  • the terminal device 900 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process communication protocols and communication data, and to control the entire terminal device 900, execute software programs, and process data of the software programs.
  • the memory is mainly used to store software programs and data.
  • the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, microphones, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the control circuit.
  • the control circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
  • the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data .
  • FIG. 9 only shows one memory and a processor.
  • terminal device 900 may include multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present invention.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire terminal device 900.
  • the software program is executed, and the data of the software program is processed.
  • the processor in FIG. 9 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
  • the terminal device 900 may include multiple baseband processors to adapt to different network standards, the terminal device 900 may include multiple central processors to enhance its processing capability, and various components of the terminal device 900 may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and control circuit with a transceiving function can be regarded as the transceiving unit 910 of the terminal device 900
  • the processor having a processing function can be regarded as the processing unit 920 of the terminal device 900
  • the terminal device 900 includes a transceiver unit 910 and a processing unit 920 .
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
  • the device for implementing the receiving function in the transceiver unit 910 may be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 910 may be regarded as a transmitting unit, that is, the transceiver unit 910 includes a receiving unit and a transmitting unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, and the like
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.
  • the embodiment of the present application also provides a network device, and the network device can be used in each of the foregoing embodiments.
  • the network device includes means, units and/or circuits for implementing the functions of the network device described in the embodiments shown in FIG. 2 , FIG. 3 , FIG. 6 , and/or FIG. 7 .
  • the network device includes a transceiver module to support the terminal device to implement a transceiver function, and a processing module to support the network device to process signals.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 20 can be applied to the architecture shown in FIG. 2 .
  • the network equipment includes: a baseband device 201 , a radio frequency device 202 , and an antenna 203 .
  • the radio frequency apparatus 202 receives the information sent by the terminal equipment through the antenna 203, and sends the information sent by the terminal equipment to the baseband apparatus 201 for processing.
  • the baseband apparatus 201 processes the information of the terminal equipment and sends it to the radio frequency apparatus 202
  • the radio frequency apparatus 202 processes the information of the terminal equipment and sends it to the terminal equipment through the antenna 201 .
  • the baseband device 201 includes one or more processing units 2011 , storage units 2012 and interfaces 2013 .
  • the processing unit 2011 is configured to support the network device to perform the functions of the network device in the foregoing method embodiments.
  • the storage unit 2012 is used to store software programs and/or data.
  • the interface 2013 is used for exchanging information with the radio frequency device 202, and the interface includes an interface circuit for inputting and outputting information.
  • the processing unit is an integrated circuit, such as one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form chips.
  • the storage unit 2012 and the processing unit 2011 may be located in the same chip, that is, an on-chip storage element. Alternatively, the storage unit 2012 and the processing unit 2011 may also be located on different chips from the processing element 2011, that is, an off-chip storage element.
  • the storage unit 2012 may be a memory, or may be a collective term for multiple memories or storage elements
  • the network device may implement some or all of the steps in the foregoing method embodiments in the form of one or more processing unit schedulers. For example, the corresponding functions of the network device in FIG. 3 and/or FIG. 7 are implemented.
  • the one or more processing units may support wireless access technologies of the same standard, or may support wireless access standards of different standards.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division.
  • the units described as separate components may or may not be physically separated.
  • the components shown may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned computer-readable storage medium can be any available medium that can be accessed by a computer.
  • the computer-readable medium may include random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), Erasable programmable read only memory (erasable PROM, EPROM), electrically erasable programmable read only memory (electrically erasable programmable read only memory, EEPROM), compact disc read-only memory (compact disc read-only memory, CD- ROM), universal serial bus flash disk, removable hard disk, or other optical disk storage, magnetic disk storage medium, or other magnetic storage device, or capable of carrying or storing desired data in the form of instructions or data structures program code and any other medium that can be accessed by a computer.
  • RAM random access memory
  • ROM read-only memory
  • PROM programmable read-only memory
  • EPROM Erasable programmable read only memory
  • EEPROM electrically erasable programmable read only memory
  • compact disc read-only memory compact disc read-only memory
  • CD- ROM compact disc read-only memory
  • universal serial bus flash disk removable hard disk,
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne des procédés et des appareils d'envoi et de réception de signaux. Un dispositif de terminal reçoit, en provenance d'un dispositif de réseau, des informations de configuration d'au moins une porteuse SUL, les informations de configuration d'une première porteuse SUL comprenant des informations d'indication et un premier seuil RSRP. Le dispositif de terminal détermine une porteuse de liaison montante selon au moins un élément d'informations d'indication, une RSRP mesurée et au moins un seuil RSRP, la porteuse de liaison montante étant une porteuse parmi la ou les porteuses SUL ou étant une porteuse ZÉRO. Le dispositif de terminal envoie un signal de liaison montante au dispositif de réseau sur la porteuse de liaison montante. Les modes de réalisation de la présente demande concernent en outre un procédé de détermination d'une porteuse de liaison montante. Indépendamment du fait que la fréquence d'une porteuse SUL soit inférieure ou supérieure à la fréquence d'une porteuse ZÉRO, selon le procédé fourni dans les modes de réalisation de la présente demande, un UE peut déterminer une porteuse de liaison montante, ce qui améliore le taux de réussite de l'UE pour déterminer une porteuse de liaison montante, de sorte que l'UE peut envoyer normalement un signal de liaison montante sur la porteuse de liaison montante déterminée.
PCT/CN2020/119090 2020-09-29 2020-09-29 Procédés et appareils d'envoi et de réception de signaux WO2022067583A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/119090 WO2022067583A1 (fr) 2020-09-29 2020-09-29 Procédés et appareils d'envoi et de réception de signaux
CN202080105112.7A CN116195342A (zh) 2020-09-29 2020-09-29 一种信号发送、接收方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/119090 WO2022067583A1 (fr) 2020-09-29 2020-09-29 Procédés et appareils d'envoi et de réception de signaux

Publications (1)

Publication Number Publication Date
WO2022067583A1 true WO2022067583A1 (fr) 2022-04-07

Family

ID=80949429

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/119090 WO2022067583A1 (fr) 2020-09-29 2020-09-29 Procédés et appareils d'envoi et de réception de signaux

Country Status (2)

Country Link
CN (1) CN116195342A (fr)
WO (1) WO2022067583A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108370574A (zh) * 2017-10-30 2018-08-03 北京小米移动软件有限公司 随机接入方法及装置
CN109803398A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 通信方法及其终端设备、网络设备
US20190215749A1 (en) * 2018-01-11 2019-07-11 FG Innovation Company Limited Uplink carrier configuration and selection with supplementary uplink
US20200053799A1 (en) * 2018-08-09 2020-02-13 Comcast Cable Communications, Llc Supplementary uplink for random access procedures
CN111543109A (zh) * 2017-11-14 2020-08-14 Idac控股公司 无线系统中的补充上行链路传输

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108370574A (zh) * 2017-10-30 2018-08-03 北京小米移动软件有限公司 随机接入方法及装置
CN111543109A (zh) * 2017-11-14 2020-08-14 Idac控股公司 无线系统中的补充上行链路传输
CN109803398A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 通信方法及其终端设备、网络设备
US20190215749A1 (en) * 2018-01-11 2019-07-11 FG Innovation Company Limited Uplink carrier configuration and selection with supplementary uplink
US20200053799A1 (en) * 2018-08-09 2020-02-13 Comcast Cable Communications, Llc Supplementary uplink for random access procedures

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "Remaining issues on the PRACH for SUL", 3GPP DRAFT; R1-1717901, vol. RAN WG1, 2 October 2017 (2017-10-02), Prague, Czech Republic, pages 1 - 5, XP051352310 *
ZTE, SANECHIPS: "Discussion on SUL carrier", 3GPP DRAFT; R2-1710899 DISCUSSION ON SUL CARRIER, vol. RAN WG1, 29 September 2017 (2017-09-29), Prague, Czech, pages 1 - 6, XP051355236 *

Also Published As

Publication number Publication date
CN116195342A (zh) 2023-05-30

Similar Documents

Publication Publication Date Title
US9867140B2 (en) Random access techniques for fixed devices in mobile broadband networks
US10701618B2 (en) System and method for access barring
US11871456B2 (en) Electronic device in wireless communication system, and wireless communication method
EP3751936B1 (fr) Procédé et dispositif de détermination d'ensemble de porteuses, support de stockage et dispositif électronique
KR102460473B1 (ko) 전자 디바이스, 정보 처리 장치, 및 정보 처리 방법
EP3343975B1 (fr) Appareil de communication et procédé de communication
CN106686745B (zh) 无线通信系统中的电子设备、用户设备和无线通信方法
CN116248446A (zh) 获取信道信息的方法及通信装置
WO2020259363A1 (fr) Dispositif électronique et procédé de communication sans fil, et support de stockage lisible par ordinateur
WO2021051364A1 (fr) Procédé, appareil et dispositif de communication
CN116491166A (zh) 通信配置的方法和通信装置
WO2022183934A1 (fr) Procédé et dispositif de re-sélection de cellule
CN112423393A (zh) 数据传输方法及装置
CN114208379A (zh) 用于无线通信系统的电子设备、方法和存储介质
WO2022067583A1 (fr) Procédés et appareils d'envoi et de réception de signaux
WO2022048344A1 (fr) Équipemement et procédé de communication
WO2022061545A1 (fr) Procédé et appareil de communication
WO2021248456A1 (fr) Procédé et dispositif de communication sans fil
CN115918122A (zh) 电子设备、无线通信方法和非暂态计算机可读存储介质
CN116746198A (zh) 一种通信方法及装置
WO2021022423A1 (fr) Procédé et dispositif permettant de transmettre des données
JP2023501409A (ja) ダウンリンク制御情報の構成方法、装置、通信機器及び記憶媒体
WO2024032285A1 (fr) Procédé et appareil de communication
WO2023125156A1 (fr) Procédé de communication et appareil de communication
WO2022082786A1 (fr) Procédé et appareil de communication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20955608

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20955608

Country of ref document: EP

Kind code of ref document: A1