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WO2018177331A1 - Procédé de configuration de ressource, terminal, et station de base - Google Patents

Procédé de configuration de ressource, terminal, et station de base Download PDF

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Publication number
WO2018177331A1
WO2018177331A1 PCT/CN2018/080941 CN2018080941W WO2018177331A1 WO 2018177331 A1 WO2018177331 A1 WO 2018177331A1 CN 2018080941 W CN2018080941 W CN 2018080941W WO 2018177331 A1 WO2018177331 A1 WO 2018177331A1
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Prior art keywords
control channel
common control
information
resource allocation
terminal
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PCT/CN2018/080941
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English (en)
Chinese (zh)
Inventor
孙立新
丁颖哲
周明宇
陈华敏
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Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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Publication of WO2018177331A1 publication Critical patent/WO2018177331A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method for configuring a resource, a terminal, and a base station.
  • the communication system provides communication services for user terminals (such as mobile phones) through radio access network devices (such as base stations) and core network devices (such as home location registers).
  • user terminals such as mobile phones
  • radio access network devices such as base stations
  • core network devices such as home location registers.
  • the signal penetration loss is large
  • the channel fading is large
  • the communication of the user terminal is made. decline in quality. Therefore, it is necessary to expand the signal energy or quality between the user terminal and the base station, and perform coverage enhancement on each physical channel between the user terminal and the base station, including the control channel.
  • the scheduling information (control channel) of different data channels is transmitted on different narrowbands, and the control channels of different data channels can be repeatedly transmitted, thereby implementing coverage enhancement.
  • control channel For communication systems operating in unlicensed bands, the control channel is transmitted over the full bandwidth, but there is currently no feasible control channel coverage enhancement method.
  • the embodiments of the present application provide a resource configuration method, a terminal, and a base station, and implement a coverage enhancement of a control channel of an unlicensed band communication system by introducing a common control channel.
  • the embodiment of the present application provides a method for configuring a resource, which is applicable to a terminal in an unlicensed frequency band, where the method includes:
  • resource allocation information of a common control channel where the resource allocation information is used to indicate transmission of a common control channel, where the resource allocation information includes a set of common control channels and/or a total frequency domain resource size of the common control channel and/or The frequency domain resource size of each common control channel set and/or the location of the common control channel in the frequency domain and/or the starting position of the common control channel within one transmission time interval and/or the common control channel in the time domain position;
  • the acquiring resource allocation information of a common control channel includes:
  • the acquiring resource allocation information of a common control channel includes:
  • the aspect and any possible implementations described above further provide an implementation in which the type of broadcast information includes primary information and/or system information.
  • Each common control channel set is independently decoded.
  • the resource allocation information includes a set number of common control channels, a total frequency domain resource size of a common control channel, and each common control channel set
  • the frequency domain resource size is any two of the three pieces of information
  • another unknown information of the three pieces of information is calculated according to two pieces of information known in the three pieces of information.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is any transmission time interval.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is the specified transmission time interval.
  • the designated transmission time interval refers to a transmission time interval whose index is a multiple of a common control channel duration.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the high layer signaling indicates the joint detection control channel to determine scheduling information of the data channel, in the public control according to the acquired
  • the method before determining the scheduling information of the data channel, the method further includes:
  • scheduling information of the data channel including,
  • the embodiment of the present application further provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions, wherein the computer instructions cause the computer to execute the foregoing resources of the present application.
  • the method of configuration
  • an embodiment of the present application further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program When the instructions are executed by the computer, the computer can perform the method of resource configuration described above in the present application.
  • the embodiment of the present application provides a method for configuring a resource, which is applicable to a base station, where the method includes:
  • the common control channel is used by the terminal to determine scheduling information of the data channel.
  • the method before the sending the common control channel to the terminal, the method further includes:
  • the broadcast information is used to carry resource allocation information indicating a common control channel transmission, where the resource allocation information includes a set number of common control channels and/or a total frequency domain resource size of a common control channel and / or the frequency domain resource size of each common control channel set and / or the location of the common control channel in the frequency domain and / or the start position of the common control channel in a transmission time interval and / or the common control channel in the time domain The location on the top.
  • the aspect and any possible implementations described above further provide an implementation in which the type of broadcast information includes primary information and/or system information.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is any transmission time interval.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is the specified transmission time interval.
  • the designated transmission time interval referring to a transmission time interval indexed as a multiple of a common control channel duration.
  • the method further includes:
  • the embodiment of the present application further provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions, wherein the computer instructions cause the computer to execute the foregoing resources of the present application.
  • the method of configuration
  • the embodiment of the present application further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program When the instructions are executed by the computer, the computer can perform the method of resource configuration described above in the present application.
  • the embodiment of the present application provides a terminal, where the terminal is applicable to an unlicensed frequency band, and the terminal includes:
  • a first acquiring unit configured to acquire resource allocation information of a common control channel, where the resource allocation information is used to indicate transmission of a common control channel, where the resource allocation information includes a total number of sets of common control channels and/or a total of common control channels.
  • a second acquiring unit configured to acquire, according to the resource allocation information, a common control channel sent by the base station
  • a determining unit configured to determine scheduling information of the data channel according to the acquired common control channel.
  • the first obtaining unit includes:
  • the first acquiring module is configured to acquire broadcast information sent by the base station, and determine resource allocation information of the common control channel by using the broadcast information.
  • the first obtaining unit includes:
  • a second acquiring module configured to acquire a pre-defined condition, and determine resource allocation information of the common control channel according to the predefined condition.
  • the aspect and any possible implementations described above further provide an implementation in which the type of broadcast information includes primary information and/or system information.
  • the determining unit includes:
  • the first decoding module is configured to jointly decode each common control channel set.
  • the determining unit further includes:
  • a second decoding module configured to independently decode each common control channel set.
  • the resource allocation information includes a set number of common control channels, a total frequency domain resource size of a common control channel, and each common control channel set
  • the frequency domain resource size is any two of the three pieces of information
  • another unknown information of the three pieces of information is calculated according to two pieces of information known in the three pieces of information.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is any transmission time interval.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is the specified transmission time interval.
  • the designated transmission time interval referring to a transmission time interval indexed as a multiple of a common control channel duration.
  • the terminal when the high-layer signaling indicates the joint detection control channel to determine the scheduling information of the data channel, the terminal further includes:
  • a third acquiring unit configured to acquire a control channel
  • an embodiment of the present application provides a base station, where the base station includes:
  • the first sending unit is configured to send a common control channel to the terminal, where the common control channel is used by the terminal to determine scheduling information of the data channel.
  • the base station further includes:
  • a second sending unit configured to send broadcast information to the terminal, where the broadcast information is used to carry resource allocation information indicating a common control channel transmission, where the resource allocation information includes a set of common control channels and/or a common control channel.
  • the aspect and any possible implementations described above further provide an implementation in which the type of broadcast information includes primary information and/or system information.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is any transmission time interval.
  • the aspect as described above and any possible implementation manner further provide an implementation manner, when the resource allocation information includes a location of a common control channel in a time domain, the start of the common control channel in the time domain The location is the specified transmission time interval.
  • the designated transmission time interval refers to a transmission time interval whose index is a multiple of a common control channel duration.
  • the base station when the terminal jointly detects a control channel to determine scheduling information of a data channel, the base station further includes:
  • the third sending unit is configured to send a control channel to the terminal.
  • the embodiment of the present application provides a terminal, where the terminal is applicable to an unlicensed frequency band, the terminal includes a processor, a memory, and an input/output interface; the processor, the memory, and the input/output interface communicate through a bus;
  • the memory is configured with computer code, and the processor can call the code to control an input/output interface;
  • the processor is configured to acquire resource allocation information of a common control channel by using the input/output interface, where the resource allocation information is used to indicate transmission of a common control channel, where the resource allocation information includes a set of common control channels and/or Or the total frequency domain resource size of the common control channel and/or the frequency domain resource size of each common control channel set and/or the location of the common control channel in the frequency domain and/or the common control channel starting within one transmission time interval The location of the starting location and/or the common control channel in the time domain;
  • the processor is configured to acquire, by using the input and output interfaces, a common control channel sent by the base station according to the resource allocation information;
  • the processor is configured to determine scheduling information of the data channel by using the input and output interface according to the acquired common control channel.
  • an embodiment of the present application provides a base station, where the base station includes a processor, a memory, and an input/output interface; the processor, the memory, and the input/output interface communicate through a bus; the memory is configured with a computer code The processor is capable of invoking the code to control the input and output interfaces;
  • the processor is configured to send broadcast information and a common control channel to the terminal through the input and output interface, where the broadcast information is used to carry resource allocation information of a common control channel.
  • An embodiment of the present application provides a resource configuration method, a terminal, and a base station.
  • a common control channel is introduced through resource configuration to determine scheduling information of a data channel, and the base station and the terminal may interact.
  • the common control channel is repeatedly transmitted on the time-frequency to achieve coverage enhancement of the control channel in the unlicensed band communication system.
  • FIG. 3 is a flowchart of another method for resource configuration provided by an embodiment of the present application.
  • Figure 5 is another schematic diagram of decoding each common control channel set
  • FIG. 5A is a schematic diagram of a relationship between PDCCH and OFDM symbols occupied by a common ePDCCH
  • FIG. 6 is a schematic diagram of a starting position of a public fePDCCH in a time domain
  • FIG. 7 is another schematic diagram of a starting position of a public fePDCCH in a time domain
  • FIG. 8 is a flowchart of another method for resource configuration according to an embodiment of the present application.
  • FIG. 9 is a structural block diagram of a terminal according to an embodiment of the present application.
  • FIG. 10 is a block diagram showing the composition of another terminal according to an embodiment of the present application.
  • FIG. 11 is a block diagram showing the composition of another terminal according to an embodiment of the present application.
  • FIG. 12 is a block diagram showing the composition of another terminal according to an embodiment of the present application.
  • FIG. 13 is a structural block diagram of a base station according to an embodiment of the present application.
  • FIG. 14 is a block diagram showing the composition of another base station according to an embodiment of the present application.
  • 15 is a block diagram of another base station provided by an embodiment of the present application.
  • 16 is a structural diagram of a physical device of a terminal according to an embodiment of the present application.
  • FIG. 17 is a structural diagram of a physical device of a base station according to an embodiment of the present application.
  • first and second may be used to describe XXX in the embodiments of the present application, these documents should not be limited to these terms. These terms are only used to distinguish files from each other.
  • the first file may also be referred to as a second file without departing from the scope of the embodiments of the present application.
  • the second file may also be referred to as a first file.
  • the word “if” as used herein may be interpreted as “when” or “when” or “in response to determining” or “in response to detecting.”
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) “Time” or “in response to a test (condition or event stated)”.
  • the embodiment of the present application provides a resource configuration method, which is applied to a mobile communication system in an unlicensed frequency band (especially for a cellular communication system that operates independently in an unlicensed frequency band, such as MulteFire), a terminal of an unlicensed band, and a base station. During the transmission of the common control channel.
  • an unlicensed frequency band especially for a cellular communication system that operates independently in an unlicensed frequency band, such as MulteFire
  • a terminal of an unlicensed band such as MulteFire
  • a base station During the transmission of the common control channel.
  • the mobile communication system may be WCDMA (Wideband Code Division Multiple Access), CDMA2000 (Code Division Multiple Access 2000), and TD-SCDMA (Time Division-Synchronous Code Division Multiple). Access, Time Division Synchronous Code Division Multiple Access), WiMAX (Worldwide Interoperability for Microwave Access), LTE/LTE-A (Long Term Evolution/Long Term Evolution-Advanced) , LAA (Licensed-Assisted Access, wireless access based on licensed bands), MulteFire, and subsequent fifth, sixth, and Nth generation mobile communication systems.
  • WCDMA Wideband Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000
  • TD-SCDMA Time Division-Synchronous Code Division Multiple
  • Access Time Division Synchronous Code Division Multiple Access
  • WiMAX Worldwide Interoperability for Microwave Access
  • LTE/LTE-A Long Term Evolution/Long Term Evolution-Advanced
  • LAA Licensed-Assisted Access, wireless access based on licensed bands
  • MulteFire and subsequent fifth, sixth,
  • the base station refers to a form of a radio station, which means that, in a certain radio coverage area, a control channel is sent to the terminal through the mobile communication switching center, so that the terminal determines the call information of the data channel according to the control channel.
  • Radio access network equipment Radio access network equipment.
  • the terminal refers to a terminal side product that can support the communication protocol of the land mobile communication system, and a special modem module (Wireless Modem), which can be integrated by various types of terminal forms such as a mobile phone, a tablet computer, and a data card. Thereby completing the communication function.
  • the terminals mentioned in the embodiments of the present application are terminals of an unlicensed frequency band, and are referred to as terminals for convenience of description.
  • the method includes:
  • the terminal acquires resource allocation information of a common control channel.
  • the common control channel refers to a control channel that the CE (coverage enhancement) user can use in common, and is used by the terminal to acquire control signaling to determine scheduling information of the data channel.
  • the data channel is used to carry public broadcast data information or user-specific data information. That is, the common control channel implements coverage enhancement, and supports CSS (common search space) and USS (UE-specific search space).
  • the public broadcast data includes a paging message, system information (SI), or downlink transmission in a random access procedure (for example, RAR and Msg 4, Random access response, and Message 4).
  • SI system information
  • RAR and Msg 4 Random access response, and Message 4
  • control signaling obtained through the common control channel includes, but is not limited to, scheduling information for determining a corresponding data channel, such as determining a transmission power or other information of the data channel.
  • the resource allocation information includes a set number of common control channels and/or a total frequency domain resource size of the common control channel and/or a frequency domain resource size of each common control channel set and a location of the common control channel in the frequency domain. And the start position of the common control channel in one transmission time interval and the position of the common control channel in the time domain.
  • the resource allocation information is used to indicate transmission of a common control channel.
  • the resource allocation information may be acquired by the terminal through the base station, or may be acquired by the terminal through a predefined condition.
  • the terminal acquires a common control channel sent by the base station according to the resource allocation information.
  • the terminal determines scheduling information of a data channel according to the acquired common control channel.
  • the terminal After acquiring the common control channel sent by the base station according to the resource allocation information, the terminal performs combined decoding on the acquired common control channel to obtain scheduling information of the corresponding data channel.
  • the embodiment of the present application sends control signaling for data channel scheduling to the CE user through the common control channel.
  • the common control channel is a common control channel introduced based on the original control channel of the CE user.
  • the original control channel of the user may be a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH).
  • the embodiment of the present application is based on the description of the ePDCCH, and the ePDCCH is used for coverage enhancement, and is used by the CE user to obtain control signaling.
  • the coverage enhanced ePDCCH is named fePDCCH (further ePDCCH), and a common control channel is introduced on this basis, and is named as a common fePDCCH.
  • the embodiment of the present application provides a resource configuration method, for a non-authorized frequency band communication system, by using a resource configuration, a common control channel is introduced to determine scheduling information of a data channel, and the interaction between the base station and the terminal may be performed on a time-frequency basis. Repeated transmission of the common control channel enables coverage enhancement of the control channel in the unlicensed band communication system.
  • the terminal calculates another unknown information among the three pieces of information according to two pieces of information known in the three pieces of information.
  • the terminal according to the total number of common control channels and the total frequency domain resource size of the common control channel and the frequency domain resource size of each common control channel set, and the common control channel in the frequency domain
  • the location determines the frequency domain resources of the common control channel (transmission resources occupied throughout the system bandwidth).
  • the terminal further determines a time domain resource (a transmission resource occupied in the time domain) of the common control channel according to a starting position of the common control channel in one transmission time interval and a position of the common control channel in the time domain.
  • the terminal may obtain the resource allocation information by using the broadcast information sent by the base station, and may obtain the resource allocation information according to the pre-defined conditions. Therefore, for the implementation of step 101, the implementation of the embodiment of the present application is Another possible implementation also provides the following method flow, including the following two implementation methods.
  • the first implementation includes:
  • the terminal acquires broadcast information sent by the base station, and determines resource allocation information of a common control channel by using the broadcast information.
  • the broadcast information is used to carry resource allocation information indicating a common control channel transmission.
  • the type of the broadcast information includes main information (MIB, Master Information Block) and/or system information (SIB1, System Information Block 1).
  • MIB is carried by a PBCH (physical broadcast channel) of the unlicensed band communication system.
  • PBCH physical broadcast channel
  • the second implementation includes:
  • the terminal acquires a predefined condition, and determines resource allocation information of a common control channel according to the predefined condition.
  • the predefined condition may be a fixed condition or a preset rule.
  • the following will separately acquire the number of sets of common control channels and the total frequency domain of the common control channel for the terminal.
  • the size of the resource, the frequency domain resource size of each common control channel set, the location of the common control channel in the frequency domain, the starting position of the common control channel in one transmission time interval, and the location of the common control channel in the time domain Be explained.
  • the terminal may obtain the set number of the common control channel by using the broadcast information sent by the base station, and may also obtain the set number of the common control channel, such as a system, by using a pre-defined condition, as described in step 1011 and step 1012.
  • the number of sets of fixed common control channels is 1.
  • the number of sets of the common control channel may be 1, or may be any natural number greater than 1 (for example, the number of sets of common control channels is 2).
  • the number of sets of the common control channel is greater than 1
  • another possible implementation manner of the embodiment of the present application provides the following two implementation manners for how to decode the set of common control channels, that is, according to the step 103
  • the process of determining the scheduling information of the data channel of the obtained common control channel includes the following two different method steps.
  • the first implementation including:
  • Step 1031 means that the terminal acquires the time-frequency resources of each common control channel set, and arranges them into a logical resource in a certain manner, and jointly decodes all the time-frequency resources on the logical resources.
  • 201 and 202 represent frequency domain resources of the first common fePDCCH set
  • 203 and 204 represent frequency of the second common fePDCCH set. Domain resource.
  • the user After receiving all the time-frequency resources of the common fePDCCH, the user combines the logical resources of the common fePDCCH into small (eCCE#1, 2...N-1, N) indexes of eCCEs (enhanced control channel elements). To the large arrangement, then decode the control signaling #1, 2...K-1, K. Among them, N and K are natural numbers.
  • the second implementation includes:
  • Step 1032 refers to that the terminal acquires the time-frequency resources of each common control channel set, obtains the logical resources of each common control channel set in a certain manner, and independently decodes the public in each set on the logical resources corresponding to each set. Control channel.
  • 301 and 302 represent frequency domain resources of the first common fePDCCH set
  • 303 and 304 represent frequency of the second common fePDCCH set. Domain resource.
  • the user constructs the logical resources 311 of the first common fePDCCH set and the logical resources 322 of the second common fePDCCH set, that is, the indexes of the eCCEs respectively (eCCE#1, 2...
  • N-1, N, and eCCE#1, 2...M-1, M) are arranged from small to large, and then independently decode control signaling in each set (control signaling #1, 2...K-1, K, and control letter) Let #1, 2...L-1, L). Among them, N, M, K and L are natural numbers.
  • the terminal may acquire the total frequency domain resource size of the common control channel by using the broadcast information sent by the base station; or obtain the total frequency of the common control channel by using a predefined condition.
  • the size of the domain resource for example, the total frequency domain resource size of the system default common control channel is 4 PRB (physical resource block) pairs, or 8 PRB pairs or 16 PRB pairs.
  • the total frequency domain resource size of the common control channel may also be determined by an index method: for example, the broadcast information notifies the index of the resource size of the common control channel. .
  • the index When the index is 0, it corresponds to 4 PRB pairs; when the index is 1, it corresponds to 8 PRB pairs; when the index is 2, it corresponds to 16 PRB pairs.
  • the terminal may acquire the frequency domain resource size of each common control channel set by using the broadcast information sent by the base station; and each public control may also be obtained by using a predefined condition.
  • the frequency domain resource size of the channel set for example, the system defaults that the frequency domain resource size of each common control channel set is 8 PRB pairs.
  • Another unknown is calculated for how the terminal passes any two of the three information of the number of sets of the common control channel, the total frequency domain resource size of the common control channel, and the frequency domain resource size of each common control channel set.
  • Information for example.
  • Example 2 giving the frequency domain resource size of each common control channel set, that is, enumerating the frequency domain resource sizes of the plurality of common control channel sets respectively. For example, given 4 and 8, respectively, that the frequency domain resource size of the first common control channel set is 4 PRB pairs, and the frequency domain resource size of the second common control channel set is 8 PRB pairs, it is known.
  • the terminal may acquire the location of the common control channel in the frequency domain by using broadcast information sent by the base station. It should be noted that when there are multiple common fePDCCH sets, each common fePDCCH set has corresponding independent resource allocation information or total joint resource allocation information in the frequency domain.
  • the terminal may also acquire the location of the common control channel in the frequency domain by using a pre-defined condition, that is, the terminal may determine the location of the common control channel in the frequency domain by using a preset rule. .
  • the terminal may have different preset rules for obtaining the preset control rule in the frequency domain by using a preset rule, but all include a cell ID and a downlink system frame. A function of some or all of the parameters. For example, the following three different preset rules are used to distinguish the first preset rule, the second preset rule, and the third preset rule.
  • the first preset rule has the following expression:
  • R i represents an ith PRB pair in the common fePDCCH resource; Indicates the cell cell ID; Indicates the downlink system bandwidth; M indicates the resource size of the public fePDCCH, that is, the number of PRB pairs.
  • the second preset rule has the following expression:
  • the parameter has the same meaning as the first preset rule.
  • TTI Transmission Time Interval
  • the frequency domain resource of the public fePDCCH can perform frequency hopping on the time domain, and the third preset rule has the following expression:
  • n sf represents a TTI index
  • f hop represents a frequency hopping interval in the time domain, which is also the number of PRB pairs.
  • Other parameters have the same meaning as the first preset rule.
  • the f hop can be configured by using broadcast information sent by the base station, for example, MIB or SIB1; the f hop can also be determined by a predefined condition.
  • the n sf may be a subframe index in a specific transmission period of the public fePDCCH. Includes a sub-frame index in a radio frame (value range can be 0-9); or a sub-frame index in a system frame period (value range can be 0-1023).
  • the number of sets is N common fePDCCH
  • the location of the common fePDCCH in the frequency domain can still be determined based on the above three preset rules.
  • the frequency domain resource occupied by the jth common fePDCCH set is denoted by S j
  • S 0 represents the frequency domain resource occupied by the first common fePDCCH set.
  • S j can be calculated based on S 0 , that is, a frequency domain offset is added to the frequency domain resource occupied by the first common fePDCCH set, and the frequency domain resources occupied by other common fePDCCH sets are obtained, and the following expression is specifically:
  • f shift represents a basic frequency domain offset
  • the f shift may be configured by using broadcast information sent by the base station, such as MIB or SIB1; the f shift may also be determined by a predefined condition.
  • the terminal may obtain the starting position of the common control channel in a transmission time interval by using the broadcast information sent by the base station, as described in step 1011 and step 1012.
  • the public control may also be obtained by using predefined conditions.
  • the starting position of the public fePDCCH in one TTI is expressed as That is, the common fePDCCH is an OFDM (Orthogonal Frequency Division Multiplexing) symbol index within one TTI. when A value of 0 indicates that the common fePDCCH is transmitted from the first OFDM symbol of one TTI.
  • OFDM Orthogonal Frequency Division Multiplexing
  • FIG. 5A it is a schematic diagram of a relationship between PDCCH symbols occupied by a PDCCH and a common ePDCCH.
  • c denotes a PDCCH
  • a denotes a cutoff symbol index of the PDCCH.
  • the PDCCH occupies the first three OFDM symbols of the first slot in the TTI, and the cutoff symbol is OFDM symbol #2.
  • d denotes a common fePDCCH
  • b denotes a start symbol (start OFDM symbol) index of the common fePDCCH.
  • b is the OFDM symbol #3 of the first slot in the TTI.
  • CE users do not need to know the value of CFI.
  • the CE user will jointly detect the PDCCH and the common fePDCCH to obtain control signaling, the CE user needs to know the CFI value.
  • CE users do not decode PCFICH, but decode Obtain the value of CFI. For example, according to the defined relationship Decode the value of CFI.
  • the value can always be fixed, ie The values are predefined and do not require signaling for setup.
  • the value can also be variable.
  • the value is different. For example, when a system broadcast data (eg, SI, Paging, etc.) is to be sent in a TTI, The value is always fixed at 2, that is, starting from the 3rd OFDM symbol.
  • a TTI does not contain the proposed broadcast data, The value is obtained according to the signaling configuration information of the system. Among them, configuration The signaling is carried in the MIB or SIB1.
  • the terminal may acquire the location of the common control channel in the time domain by using the broadcast information sent by the base station; or acquire the common control channel at a pre-defined condition. The location on the domain.
  • the common fePDCCH needs to be repeatedly transmitted in the time domain, and each public fePDCCH transmission requires multiple TTIs.
  • the starting position of a common fePDCCH in the time domain may be any TTI, that is, one common fePDCCH may be sent in each TTI; or may be a specified TTI, that is, a starting position of a common fePDCCH in the time domain. Limited by certain TTIs.
  • the specified TTI may be a TTI whose index is a multiple of a common fePDCCH duration.
  • the common fePDCCH duration refers to the number of TTIs required for a common fePDCCH to be completely transmitted in the time domain.
  • the starting position of the public fePDCCH in the time domain is an arbitrary TTI.
  • the transmission of one common fePDCCH requires N TTIs.
  • 430 and 440 respectively represent two common fePDCCHs that are independently transmitted in the time domain, starting at TTI 401 and TTI 402 respectively, that is, one common fePDCCH may start at any one TTI.
  • the starting position of the common fePDCCH in the time domain is a schematic diagram of the index being a common fePDCCH duration multiple TTI.
  • the transmission of one common fePDCCH requires N TTIs.
  • 530 and 540 respectively represent two common fePDCCHs that are independently transmitted in the time domain, starting at TTI 501 and TTI 511, respectively, and 501 and 511 are multiples of N.
  • the base station in order to further enhance the coverage of the control channel received by the terminal, the base station sends the high layer signaling to indicate that the terminal jointly detects the control channel to determine the scheduling information of the data channel, so another embodiment of the present application.
  • the possible implementation manner also provides the following method flow, which is performed before step 103, as shown in FIG. 8, and includes:
  • the terminal acquires a control channel sent by the base station.
  • step 103 includes
  • the terminal determines scheduling information of the data channel according to the acquired common control channel and the control channel.
  • the high-level signaling refers to system information that is sent by the base station to the terminal, and is the same as the broadcast information, and is used to carry resource allocation information. For example, there may be 1 bit of information in the MIB or SIB1 indicating whether the control channel is to be jointly detected.
  • the embodiment further provides a non-transitory computer readable storage medium storing computer instructions, the computer instructions causing the computer to perform the method provided by any of the above method embodiments .
  • the embodiment further provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer,
  • the computer is capable of performing the methods provided by any of the above method embodiments.
  • the embodiment of the present application provides a terminal, which is applicable to the foregoing method, and the terminal is applicable to an unlicensed frequency band.
  • the terminal includes:
  • the first obtaining unit 61 is configured to acquire resource allocation information of a common control channel, where the resource allocation information is used to indicate transmission of a common control channel, where the resource allocation information includes a set of common control channels and/or a common control channel.
  • the total frequency domain resource size and/or the frequency domain resource size of each common control channel set and/or the location of the common control channel in the frequency domain and/or the starting position of the common control channel within a transmission time interval and/or The location of the common control channel in the time domain.
  • the second obtaining unit 62 is configured to acquire, according to the resource allocation information, a common control channel sent by the base station.
  • the determining unit 63 is configured to determine scheduling information of the data channel according to the acquired common control channel.
  • the first acquiring unit 61 includes:
  • the first obtaining module 611 is configured to acquire broadcast information sent by the base station, and determine resource allocation information of the common control channel by using the broadcast information.
  • the first acquiring unit 61 includes:
  • the second obtaining module 612 is configured to acquire a predefined condition, and determine resource allocation information of the common control channel according to the predefined condition.
  • the type of the broadcast information includes primary information and/or system information.
  • the determining unit 63 includes:
  • the first decoding module 631 is configured to jointly decode each common control channel set.
  • the determining unit 63 further includes:
  • the second decoding module 632 is configured to independently decode each common control channel set.
  • the resource allocation information includes any two of three pieces of information: a set number of the common control channel, a total frequency domain resource size of the common control channel, and a frequency domain resource size of each common control channel set. And calculating another unknown information among the three pieces of information according to two pieces of information known in the three pieces of information.
  • the starting position of the common control channel in a transmission time interval is not less than a control format indication value.
  • the starting position of the common control channel in the time domain is an arbitrary transmission time interval.
  • a starting position of the common control channel in the time domain is a designated transmission time interval.
  • the specified transmission time interval refers to a transmission time interval whose index is a multiple of a common control channel duration.
  • the terminal when the high layer signaling indicates the joint detection control channel to determine the scheduling information of the data channel, the terminal further includes:
  • the third obtaining unit 64 is configured to acquire a control channel.
  • the determining unit 63 is specifically configured to:
  • the embodiment of the present application provides a terminal, for a non-authorized frequency band communication system, to introduce a common control channel to determine scheduling information of a data channel through resource configuration, and can repeatedly transmit the public in time and frequency through interaction between the base station and the terminal.
  • the control channel realizes coverage enhancement of the control channel in the unlicensed band communication system.
  • the embodiment of the present application provides a base station, which is applicable to the foregoing method, and as shown in FIG. 13, the base station includes:
  • the first sending unit 71 is configured to send a common control channel to the terminal, where the common control channel is used by the terminal to determine scheduling information of the data channel.
  • the base station further includes:
  • a second sending unit 72 configured to send broadcast information to the terminal, where the broadcast information is used to carry resource allocation information indicating a common control channel transmission, where the resource allocation information includes a set number of common control channels and/or a common control The total frequency domain resource size of the channel and/or the frequency domain resource size of each common control channel set and/or the location of the common control channel in the frequency domain and/or the starting position of the common control channel within a transmission time interval and / or the location of the common control channel in the time domain.
  • the type of the broadcast information includes primary information and/or system information.
  • the starting position of the common control channel in a transmission time interval is not less than a control format indication value.
  • the starting position of the common control channel in the time domain is an arbitrary transmission time interval.
  • a starting position of the common control channel in the time domain is a designated transmission time interval.
  • the specified transmission time interval refers to a transmission time interval whose index is a multiple of a common control channel duration.
  • the base station when the terminal jointly detects a control channel to determine scheduling information of a data channel, the base station further includes:
  • the third sending unit 73 is configured to send a control channel to the terminal.
  • the embodiment of the present application provides a base station, for a non-authorized frequency band communication system, by using a resource configuration, introducing a common control channel to determine scheduling information of a data channel, and repeatedly transmitting the public at a time-frequency through interaction between the base station and the terminal.
  • the control channel realizes coverage enhancement of the control channel in the unlicensed band communication system.
  • the embodiment of the present application provides a terminal, which is applicable to the foregoing method, where the terminal is applicable to an unlicensed frequency band.
  • the terminal includes a processor 81, a memory 82, and an input/output interface 83.
  • the processor 81, the memory 82, and the input/output interface 83 communicate via a bus; the memory 82 is configured with computer code, and the processor 81 can call the code to control the input/output interface 83.
  • the processor 81 is configured to acquire resource allocation information of a common control channel by using the input/output interface 83, where the resource allocation information is used to indicate transmission of a common control channel, where the resource allocation information includes a set of common control channels. And/or the total frequency domain resource size of the common control channel and/or the frequency domain resource size of each common control channel set and/or the location of the common control channel in the frequency domain and/or the common control channel within one transmission time interval The starting position and/or the position of the common control channel in the time domain.
  • the processor 81 is configured to acquire a common control channel through the input/output interface 83 according to the resource allocation information.
  • the processor 81 is configured to determine scheduling information of the data channel by using the input/output interface 83 according to the acquired common control channel.
  • the processor 81 is further configured to acquire broadcast information sent by the base station by using the input/output interface 83, and determine resource allocation information of the common control channel by using the broadcast information.
  • the processor 81 is further configured to obtain a predefined condition by using the input/output interface 83, and determine resource allocation information of the common control channel according to the predefined condition.
  • the type of the broadcast information includes primary information and/or system information.
  • the processor 81 is further configured to jointly decode each common control channel set by using the input and output interface 83.
  • the processor 81 is further configured to independently decode each common control channel set by using the input/output interface 83.
  • the resource allocation information includes any two of three pieces of information: a set number of the common control channel, a total frequency domain resource size of the common control channel, and a frequency domain resource size of each common control channel set. And calculating another unknown information among the three pieces of information according to two pieces of information known in the three pieces of information.
  • the starting position of the common control channel in a transmission time interval is not less than a control format indication value.
  • the starting position of the common control channel in the time domain is an arbitrary transmission time interval.
  • a starting position of the common control channel in the time domain is a designated transmission time interval.
  • the specified transmission time interval refers to a transmission time interval whose index is a multiple of a common control channel duration.
  • the processor 81 is further configured to acquire a control channel by using the input/output interface 83; The common control channel and the control channel determine the scheduling information of the data channel.
  • the embodiment of the present application provides a terminal, for a non-authorized frequency band communication system, to introduce a common control channel to determine scheduling information of a data channel through resource configuration, and can repeatedly transmit the public in time and frequency through interaction between the base station and the terminal.
  • the control channel realizes coverage enhancement of the control channel in the unlicensed band communication system.
  • the base station includes a processor 91, a memory 92, and an input/output interface 93; the processor 91, the memory 92, and an input/output interface. 93 communicates via a bus; the memory 92 is configured with computer code, and the processor 91 can call the code to control the input and output interface 93.
  • the processor 91 is configured to send broadcast information and a common control channel to the terminal through the input/output interface 93, where the broadcast information is used to carry resource allocation information of a common control channel.
  • the processor 91 is further configured to send broadcast information to the terminal by using the input/output interface 93, where the broadcast information is used to carry resource allocation information indicating a common control channel transmission, where the resource allocation
  • the information includes the number of sets of common control channels and/or the total frequency domain resource size of the common control channel and/or the frequency domain resource size of each common control channel set and/or the location and/or common of the common control channel in the frequency domain. The starting position of the control channel in one transmission time interval and/or the position of the common control channel in the time domain.
  • the type of the broadcast information includes primary information and/or system information.
  • the starting position of the common control channel in a transmission time interval is not less than a control format indication value.
  • the starting position of the common control channel in the time domain is an arbitrary transmission time interval.
  • a starting position of the common control channel in the time domain is a designated transmission time interval.
  • the specified transmission time interval refers to a transmission time interval whose index is a multiple of a common control channel duration.
  • the processor 91 is further configured to send a control channel to the terminal by using the input/output interface 93.
  • the embodiment of the present application provides a base station, for a non-authorized frequency band communication system, by using a resource configuration, introducing a common control channel to determine scheduling information of a data channel, and repeatedly transmitting the public at a time-frequency through interaction between the base station and the terminal.
  • the control channel realizes coverage enhancement of the control channel in the unlicensed band communication system.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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

Abstract

La présente invention se rapporte au domaine technique des communications. Un mode de réalisation de la présente invention concerne un procédé de configuration de ressources, un terminal et une station de base aptes à introduire un canal de commande commun, ce qui permet d'améliorer la couverture d'un canal de commande de bande sans licence. Le procédé est applicable à un terminal de bande sans licence, et comprend les étapes suivantes : un terminal acquiert des informations d'attribution de ressources d'un canal de commande commun, les informations d'attribution de ressources comprenant une quantité d'ensembles de canaux de commande communs, une taille de ressources de domaine de fréquence totale des canaux de commande communs, une taille de ressources de domaine de fréquence de chaque ensemble de canal de commande commun, une position du canal de commande commun dans un domaine de fréquence, une position de départ du canal de commande commun dans un intervalle de temps de transmission, et une position du canal de commande commun dans un domaine temporel ; le terminal acquiert, conformément aux informations de configuration de ressource, un canal de commande commun transmis par une station de base ; et le terminal détermine, conformément au canal de commande commun acquis, des informations de programmation d'un canal de données. La solution technique fournie dans le mode de réalisation de la présente invention est applicable à un procédé de transmission d'un canal de commande commun.
PCT/CN2018/080941 2017-03-28 2018-03-28 Procédé de configuration de ressource, terminal, et station de base Ceased WO2018177331A1 (fr)

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CN106937390A (zh) * 2017-03-28 2017-07-07 北京佰才邦技术有限公司 一种资源配置的方法及终端、基站
CN107396446A (zh) * 2017-07-14 2017-11-24 北京佰才邦技术有限公司 一种信息处理的方法及装置
CN109275190B (zh) * 2017-07-17 2021-10-26 华为技术有限公司 一种通信方法及装置
US11012922B2 (en) * 2017-09-18 2021-05-18 Qualcomm Incorporated Common search space design for coverage enhancement in wireless communications
CN109644099B (zh) * 2017-09-25 2021-01-12 Oppo广东移动通信有限公司 无线通信方法、网络设备和终端
CN109302746B (zh) * 2017-11-17 2019-11-01 华为技术有限公司 检测窗指示方法及装置
CN111656838B (zh) * 2018-02-14 2023-11-03 华为技术有限公司 一种频域资源的分配方法及装置
TWI719725B (zh) * 2019-01-11 2021-02-21 財團法人資訊工業策進會 用於行動通訊系統之基地台

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