WO2025124111A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2025124111A1
WO2025124111A1 PCT/CN2024/133993 CN2024133993W WO2025124111A1 WO 2025124111 A1 WO2025124111 A1 WO 2025124111A1 CN 2024133993 W CN2024133993 W CN 2024133993W WO 2025124111 A1 WO2025124111 A1 WO 2025124111A1
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WO
WIPO (PCT)
Prior art keywords
common signal
common
period
signals
system message
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PCT/CN2024/133993
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English (en)
Chinese (zh)
Inventor
焦铭晗
李锐杰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Publication of WO2025124111A1 publication Critical patent/WO2025124111A1/fr
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Anticipated expiration legal-status Critical

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    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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

Definitions

  • the present application relates to the field of communication technology, and in particular to a communication method and device.
  • the transmission bandwidth of 5G networks has increased dramatically.
  • the larger peak to average power ratio (PAPR) has further reduced the efficiency of the power amplifier (PA), which has caused a sharp increase in the transmission power consumption of 5G network base stations.
  • PA power amplifier
  • the number of transmission channels of base stations has increased dramatically, which has also caused a sharp increase in the static power consumption of the system.
  • the increasingly dense deployment of base stations has also caused the overall power consumption of the entire network to increase further.
  • the power consumption of a single 5G base station is generally 2 to 3 times that of a typical 4G base station.
  • the typical power consumption of a single remote radio unit (RRU) is 660W.
  • the typical power consumption of a single active antenna unit (AAU) has increased to 1400W.
  • high energy consumption is not conducive to environmental protection and sustainable social development, and on the other hand, it causes huge electricity bills.
  • Typical public signals include synchronization signal/PBCH block (SSB) and system information block 1 (SIB1).
  • the SSB transmission mode can be dynamically adjusted by configuring two sets of SSB configurations. Furthermore, how to enable the terminal to determine the configuration of different SSBs in the scenario of dual SSB (multi-SSB) configuration is an issue worthy of attention.
  • the embodiments of the present application provide a communication method and apparatus for enabling a terminal to determine the configurations of different SSBs.
  • the present application provides a communication method, which can be executed by a terminal or a module (such as a chip) in the terminal.
  • the method includes: receiving a system message; determining transmission resource configurations of M types of common signals according to the system message, where M is an integer greater than 1.
  • the terminal when M types of common signals are configured on the network side, the terminal can determine the transmission resource configuration of the M types of common signals through system messages, and then can determine which type of common signal the received common signal is according to the transmission resource configuration of the M types of common signals, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the M types of common signals.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal and/or the first offsets corresponding to the M-1 common signals respectively, and the period and/or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.
  • the terminal can determine the period of M common signals and the first offset of M common signals based on system messages, or system messages and predefined related content, and then distinguish different common signals through different system frames, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the M common signals.
  • M 2; the M common signals include a first common signal and a second common signal; the system message includes a period of the first common signal, and the period of the second common signal and/or the half frame corresponding to the transmission resource of the second common signal are predefined or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.
  • the terminal can determine the half-frames in which the transmission resources of the first common signal and the transmission resources of the second common signal are respectively located based on the system message, or the system message and predefined related content, and then distinguish different common signals through different half-frames, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the two common signals.
  • M 2; the M common signals include a first common signal and a second common signal; the system message includes a first period; a first bias and/or a period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource except the transmission resources of the first common signal are the transmission resources of the second common signal.
  • the terminal can determine the distribution of the two common signals in the first period based on the system message, or the system message and predefined related content, and then distinguish different common signals through different system frames, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the two common signals.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and/or the transmission pattern of the first common signal are predefined or carried by the system message.
  • the terminal can determine the correspondence between the periods of M common signals and the transmission patterns of M common signals based on system messages, or system messages and predefined related content, and then distinguish different common signals through different transmission patterns, and detect the corresponding common signal on the corresponding transmission resource according to the transmission resource configuration of the M common signals.
  • a third common signal is received, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.
  • the terminal can determine the correspondence between the periods of M common signals and the second offsets of the M common signals based on system messages, or system messages and predefined related content, and then distinguish different common signals by different second offsets, and detect the corresponding common signals on the corresponding transmission resources according to the transmission resource configuration of the M common signals.
  • a third common signal is received, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal and/or the first offsets corresponding to the M-1 common signals respectively, and the period and/or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.
  • the system message includes the period of the first common signal, the period of the second common signal and/or the half frame corresponding to the transmission resource of the second common signal is predefined, or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.
  • M 2; the M common signals include a first common signal and a second common signal; the system message includes a first period; a first bias and/or a period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource except the transmission resources of the first common signal are the transmission resources of the second common signal.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the transmission patterns of the M-1 common signals; the period of the first common signal and/or the transmission pattern of the first common signal are predefined or carried by the system message.
  • a third common signal is received, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and/or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.
  • a third common signal is received, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.
  • the present application provides a communication method, the device comprising a transceiver unit and a processing unit, the transceiver unit being used to send and receive information, the processing unit sending N common signals out of M common signals through the transceiver unit; M is an integer greater than 1, N is a positive integer less than or equal to M; and sending a system message; the system message is used to determine the transmission resource configuration of the M common signals.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal and/or the first offsets corresponding to the M-1 common signals respectively, and the period and/or the first offset of the first common signal are predefined or carried by the system message; wherein the first offset of the i-th common signal indicates the system frame in which the transmission resources of the i-th common signal are located within the period of the i-th common signal; the i-th common signal is any one of the M common signals.
  • M 2; the M common signals include a first common signal and a second common signal; the system message includes a period of the first common signal, and the period of the second common signal and/or the half frame corresponding to the transmission resource of the second common signal are predefined or carried by the system message, and the half frame corresponding to the transmission resource of the first common signal is different from the half frame corresponding to the transmission resource of the second common signal.
  • M 2; the M common signals include a first common signal and a second common signal; the system message includes a first period; a first bias and/or a period of the first common signal are predefined, or carried by the system message; wherein the first period and the first bias are used to determine a first transmission resource; the transmission resource of the first common signal is determined based on the period of the first common signal and the first bias; the transmission resources in the first transmission resource except the transmission resources of the first common signal are the transmission resources of the second common signal.
  • a third common signal is sent, where the third common signal is one of the M common signals; wherein the third common signal carries first indication information, and the first indication information indicates a transmission pattern of the third common signal.
  • the system message includes the periods of M-1 common signals among the M common signals except the first common signal, and the correspondence between the periods of the M-1 common signals and the second offsets of the M-1 common signals; the period of the first common signal and/or the second offset of the first common signal are predefined, or carried by the system message; wherein the second offset of the i-th common signal indicates the offset of the transmission resources of the i-th common signal relative to the transmission resources of the second common signal, the transmission resources of the second common signal are determined based on a predefined transmission pattern, and the i-th common signal is any one of the M common signals.
  • a third common signal is sent, where the third common signal is one of the M common signals; the third common signal carries second indication information, and the second indication information indicates a second offset of the third common signal.
  • the present application provides a communication device comprising at least one processing element and at least one storage element, wherein the at least one storage element is used to store programs and data, and the at least one processing element is used to read and execute the programs and data stored in the storage element, so that any method described in any one of the above aspects of the present application is implemented.
  • the present application further provides a computer program, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.
  • the present application provides a communication device, comprising: an interface circuit and at least one processor; the interface circuit is used to provide input and/or output of programs or instructions to the at least one processor; the at least one processor is used to execute the program or instructions so that the communication device can implement any of the methods described in any of the above aspects.
  • the communication device includes the at least one memory, and the at least one memory is used to store the program or instruction.
  • the present application provides a computer storage medium storing a software program, which, when read and executed by one or more processors, can implement any of the methods described in any of the above aspects.
  • the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the methods described in any of the above aspects.
  • the present application provides a chip system, comprising at least one chip and a memory, wherein the at least one chip is used to read and execute a program stored in the memory to implement any of the methods described in any of the above aspects.
  • the present application provides a communication system, comprising at least one terminal and a base station, the terminal being used to execute any one of the methods described in the first aspect, and the base station being used to execute any one of the methods described in the second aspect.
  • FIG1 shows a schematic diagram of the architecture of a communication system
  • FIG2 shows a schematic diagram of a time-frequency resource structure of SSB
  • FIG3 shows a schematic diagram of two sets of SSB
  • FIG5 shows one of the schematic diagrams of a first SSB and a second SSB
  • Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz.
  • GHz gigahertz
  • the embodiments of the present application do not limit the spectrum resources used for wireless communication.
  • the SSB pattern is predefined by the protocol, and different SSB patterns have a one-to-one mapping relationship with SCS and frequency bands.
  • the following Table 1 shows an example of the relationship between SSB pattern, SCS and frequency band. It should be noted that the following Table 1 captures part of the content specified in the existing protocol.
  • Case A Take Case A as an example.
  • Case A has the following characteristics:
  • the starting OFDM symbol index of SSB in the half frame is determined to be ⁇ 2,8 ⁇ +14 ⁇ n.
  • n 0, 1
  • SSB is sent in the first two time slots of the half frame
  • the starting OFDM symbol corresponding to the SSB in each time slot is the 3rd/9th, that is, there are a total of 4 SSB transmission resources.
  • the terminal When the terminal detects SSB, the terminal can determine the corresponding SSB pattern according to the frequency band where the SCS is located. Furthermore, the MIB in the SSB carries half-frame indication information and the system frame number (SFN). Correspondingly, after the terminal receives the SSB, the terminal can obtain the specific frame based on the SFN in the MIB, and the specific half-frame based on the half-frame indication information in the MIB. Since there is a one-to-one mapping relationship between a specific SSB index and a fixed time domain position in the SSB pattern, the terminal can also determine the time slot/OFDM symbol distribution in the half-frame based on the SSB index and the SSB pattern.
  • SFN system frame number
  • the terminal will further receive SIB1, where SIB1 contains the actual transmission period of the SSB (for example, indicated by the ssb-PeriodicityServingCell field in SIB1) and the SSB beam actually sent, or the actual transmission status of the SSB (for example, indicated by the ssb-PositionsInBurst field in SIB1).
  • SIB1 contains the actual transmission period of the SSB (for example, indicated by the ssb-PeriodicityServingCell field in SIB1) and the SSB beam actually sent, or the actual transmission status of the SSB (for example, indicated by the ssb-PositionsInBurst field in SIB1).
  • the ssb-PositionsInBurst field can be used to indicate which SSBs corresponding to which SSB indexes are sent, or to indicate at which SSB transmission opportunities the SSB is sent.
  • the terminal can know the actual transmission configuration of the SSB (including
  • the terminal determines the transmission configuration of SSB in two main steps: first, at the time of initial access, based on the predefined mapping relationship between SCS, frequency band and SSB pattern (for example, Table 1), determine the SSB pattern (for example, Case A); second, after receiving SIB1, determine the actual transmitted SSB pattern according to the SSB period configuration and the actual transmission beam configuration.
  • the SSB cycle is usually quite frequent (for example, a typical cycle is 20ms); at the same time, the SSB beam sent in each cycle is the same (there is only one SSB configuration and a corresponding ssb-PositionsInBurst parameter).
  • the base station is configured with a set of basic SSBs or long-period SSBs to ensure basic network access and measurement performance.
  • the period of this SSB is usually longer (for example, 160ms) and the transmission SSB beam is more complete.
  • the base station is also configured with a set of short-period SSBs to serve users covered by the base station on demand.
  • the transmission period of the short-period SSB can change dynamically according to the load. For example, in medium and light load scenarios, the transmission period can be lengthened or its transmission pattern can be changed to reduce the network transmission SSB overhead and reduce base station power consumption.
  • the transmission pattern of the short-period SSB can change dynamically according to the distribution of the terminal.
  • the terminal distribution is relatively concentrated, only the SSB beam in the direction determined by the terminal distribution can be transmitted to reduce the network transmission SSB overhead and reduce power consumption.
  • the terminal may not be able to determine which transmission resources the two sets of SSBs are transmitted on.
  • the terminal when the short-period SSB transmission configuration changes (including changes in the transmission SSB beam or the period of the SSB), the terminal cannot know which specific corresponding transmission resources have changed, which may affect a series of SSB-related processes, including SSB-related measurements, transmissions mapped to SSB, etc.
  • a public signal may refer to one of SSB, PSS, SSS, PBCH, or a combination of multiple signals, or other signals that can be used for a terminal to access a network.
  • the period of a public signal may also be referred to as a transmission period of a public signal, or a sending period of a public signal, etc., which is not limited in the present application.
  • a system message may refer to SIB1, or other SIBs, SIBx (where x is a positive integer and not 1), system information (system information SI), etc. It is understood that the following description is based on the example that the public signal is SSB and the system message is SIB1, which is not a limitation of the present application.
  • system message includes A, which may also be replaced by a system message indicating A, or a system message carrying A, etc., which is not limited in the present application.
  • A may be a specific parameter or a corresponding relationship, etc., and please refer to the following related description for details.
  • system message may include other content in addition to the content involved below.
  • the base station can be the access network device 110a or the access network device 110b in the aforementioned Figure 1.
  • the terminal can be any of the terminals shown in the aforementioned Figure 1.
  • the base station can also be replaced by a communication device with a base station function or a chip, unit or module inside a communication device with a base station function.
  • the terminal can also be replaced by a communication device with a terminal function or a chip, unit or module inside a communication device with a terminal function.
  • FIG4 exemplarily shows a possible flow chart of a communication method provided in an embodiment of the present application. As shown in FIG4 , the method includes:
  • Step 400 The base station sends a system message, and correspondingly, the terminal receives the system message.
  • the base station may further send N common signals among the M common signals. Accordingly, the terminal may detect at least one common signal among the N common signals. The terminal may receive a corresponding system message based on the detected common signal, where M is an integer greater than 1 and N is a positive integer less than or equal to M.
  • the base station may send a first SSB and a second SSB
  • the terminal may detect the first SSB, and then determine the time-frequency position of SIB1 based on the first SSB, and detect SIB1 at the time-frequency position.
  • Step 410 The terminal determines the transmission resource configuration of M types of common signals according to the system message, where M is an integer greater than 1.
  • the transmission resource configuration of M common signals can also be described as the transmission configuration of M common signals, or the configuration of M common signals, or the time domain configuration of M common signals, etc., and this application does not limit this.
  • the system message includes the periods of M-1 common signals except the first common signal among the M common signals and/or the first offsets corresponding to the M-1 common signals respectively, wherein the period and/or the first offset of the first common signal can be predefined or carried through the system message.
  • the period of the first common signal may be predefined, and the first offset of the first common signal may be carried by a system message, that is, the protocol predefines the period of the first common signal, and the system message also includes the first offset of the first common signal.
  • the first offset of the first common signal may be predefined, and the period of the first common signal may be carried by a system message, that is, the protocol predefines the first offset of the first common signal, and the system message also includes the period of the first common signal.
  • the period and the first offset of the first common signal may be predefined, that is, the protocol predefines the period of the first common signal and the first offset of the first common signal.
  • the period and the first offset of the first common signal are carried by a system message, that is, the system message also includes the period of the first common signal and the first offset of the first common signal.
  • the terminal can determine the transmission resource configuration of the remaining M-1 common signals among the M common signals based on the system message.
  • the ith public signal is any one of the M public signals, and taking the ith public signal as an example, the first offset of the ith public signal indicates the system frame where the transmission resource of the ith public signal is located within the period of the ith public signal.
  • the first offset of the ith public signal indicates the time domain unit where the transmission resource of the ith public signal is located within the period of the ith public signal
  • the first offset of the ith public signal indicates the time domain position where the transmission resource of the ith public signal is located within the period of the ith public signal.
  • the period of the i-th common signal is X system frames
  • the first offset of the i-th common signal is Y system frames.
  • X is a positive integer

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

Abstract

Procédé et appareil de communication, se rapportant au domaine technique des communications. Le procédé consiste à : recevoir un message système ; et déterminer des configurations de ressources de transmission de M signaux communs sur la base du message système, M étant un nombre entier supérieur à 1. En utilisant le procédé, lorsque les M signaux communs sont configurés sur un côté réseau, un terminal peut déterminer les configurations de ressources de transmission des M signaux communs au moyen du message système, et peut ainsi déterminer le type des signaux communs reçus sur la base des configurations de ressources de transmission des M signaux communs et détecter les signaux communs correspondants sur des ressources de transmission correspondantes sur la base des configurations de ressources de transmission des M signaux communs.
PCT/CN2024/133993 2023-12-14 2024-11-22 Procédé et appareil de communication Pending WO2025124111A1 (fr)

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CN202311724606.5 2023-12-14
CN202311724606.5A CN120165820A (zh) 2023-12-14 2023-12-14 一种通信方法及装置

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WO2020199088A1 (fr) * 2019-04-01 2020-10-08 华为技术有限公司 Procédé de transmission de données et dispositif de communication
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