CN111526590B - Indication method and device - Google Patents
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- CN111526590B CN111526590B CN201910108683.5A CN201910108683A CN111526590B CN 111526590 B CN111526590 B CN 111526590B CN 201910108683 A CN201910108683 A CN 201910108683A CN 111526590 B CN111526590 B CN 111526590B
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/0012—Hopping in multicarrier systems
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention provides an indication method and equipment, wherein the method comprises the following steps: the network device sends a first message to the terminal, the first message including an indication field, the indication field being used to indicate a manner in which the terminal hops. In the embodiment of the invention, the network equipment avoids the interference between the GSM frequency point and the eMTC SIB1-BR and Paging messages when the GL frequency spectrum sharing technology and the eMTC are started simultaneously in a mode that the indication field indicates the terminal to hop frequencies.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an indication method and indication equipment.
Background
Under the condition that global mobile communication (Global System For Mobile Communications, GSM) frequency-back cannot exit from a standard bandwidth, but long term evolution (Long Term Evolution, LTE) frequency division duplex (Frequency Division Duplexing, FDD) standard bandwidth configuration, GSM shares partial frequency resources within the spectrum range of LTE to transmit GSM signals, so that the frequency spectrum utilization efficiency of FDD (frequency division duplex) can be effectively improved, namely GL frequency spectrum sharing technology is adopted, wherein GSM shared frequency points are positioned on two sides of the FDD bandwidth.
The third generation partnership project (3rd Generation Partnership Project,3GPP) specifies that enhanced machine type communication (Enhancement Machine Type Communication, eMTC) system information block-bandwidth reduction (System Information Block-Bandwidth Reduction, SIB 1-BR) must follow a frequency hopping principle, and a unique Narrowband (NB) resource block cannot be used fixedly, and the frequency hopping pattern (pattern) is based on a physical cell identity (Physical Cell Identifier, PCI), and for different PCI cells of the whole network, SIB1-BR of a part of cells may coincide with a shared GSM frequency point, resulting in a reduced SIB1-BR demodulation performance.
The 3GPP specifies that NB resource blocks used for machine type communication physical downlink control channels (Machine type communication Physical Downlink Control Channel, MPDCCH) of paging (paging) messages are PCI-based predetermined and cannot be configured based on the operator.
See tables 1 and 2, where table 1 is NB resource blocks used by SIB1-BR under different PCIs and table 2 is NB resource blocks used by paging under different PCIs.
TABLE 1
TABLE 2
In the prior art, GSM frequency points located in a shared bandwidth interfere eMTC SIB1-BR and paging messages in corresponding positions, referring to fig. 1, for example, 10MHz is shared by 10MHz and 4.4MHz is configured by LTE FDD, 50 Resource Blocks (RBs) are shared by GSM and 4.4MHz, GSM shared frequency points are symmetrically distributed on two sides of LTE bandwidth, where NB0 and NB7 all fall in the shared bandwidth, NB1 and NB6 partially fall in the shared bandwidth, and according to a test result, one GSM shared frequency point is used, and 2 to 3 RBs are respectively unavailable on two sides, i.e., NB1 and NB6 are also interfered by GSM.
SIB1-BR hops on three pairs of NB0 and NB5, NB1 and NB6, NB2 and NB7, respectively, the current solution is to reduce interference by PCI planning, PCI mod6 is not available for use with PCIs equal to 1 and 4 since NB1 and NB6 are both interfered, only 2/3 of PCI is available, and NB0 and NB5, NB2 and NB7 will be interfered in half, and demodulation performance of the terminal will be reduced.
Although MPDCCH paging may turn off or turn on hopping, since its hopping NB combination is the same as SIB1-BR, part of the paging message may still be interfered.
Disclosure of Invention
The embodiment of the invention provides an indication method and equipment, which solve the problem of interference between a GSM frequency point and eMTC SIB1-BR and Paging messages when a GL frequency spectrum sharing technology and eMTC are started simultaneously.
According to a first aspect of an embodiment of the present invention, there is provided an indication method applied to a network device, the method including: and sending a first message to the terminal, wherein the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal.
Optionally, the frequency hopping manner of the terminal includes: and when the value of the indication field is null, the terminal hops on the NB resource block corresponding to the PCI.
Optionally, when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set; the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
Optionally, when the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is an even number, the number of NB resource blocks available for frequency hopping is the same as the total number of NB resource blocks in the non-overlapping portion; when the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is an odd number, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
Optionally, the terminal hops on the target frequency hopping NB resource block set, including: and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
Optionally, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1; when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2; when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
Optionally, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits.
Optionally, the first message is an eMTC MIB message.
According to a second aspect of the embodiment of the present invention, there is provided an indication method, applied to a terminal, the method including: a first message is received from a network device, the first message including an indication field for indicating a manner in which the terminal hops to send the message.
Optionally, the method for sending the message by the terminal in a frequency hopping manner includes: and when the value of the indication field is null, the terminal hops and sends a message on the NB resource block corresponding to the PCI.
Optionally, when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set; the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
Optionally, when the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is an even number, the number of NB resource blocks available for frequency hopping is the same as the total number of NB resource blocks in the non-overlapping portion; when the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is an odd number, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
Optionally, the terminal hops on the target frequency hopping NB resource block set, including: and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
Optionally, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1; when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2; when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
Optionally, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits.
Optionally, the first message is an eMTC MIB message.
According to a third aspect of an embodiment of the present invention, there is provided a network device, comprising: a first transceiver and a first processor;
the first transceiver is configured to send a first message to a terminal, where the first message includes an indication field, and the indication field is configured to indicate a frequency hopping manner of the terminal.
Optionally, the method for sending the message by the terminal in a frequency hopping manner includes: and when the value of the indication field is null, the terminal hops on the NB resource block corresponding to the PCI.
Optionally, when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set; the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
Optionally, when the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is an even number, the number of NB resource blocks available for frequency hopping is the same as the total number of NB resource blocks in the non-overlapping portion; when the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is an odd number, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
Optionally, the terminal hops on the target frequency hopping NB resource block set, including: and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
Optionally, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1; when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2; when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
Optionally, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits.
Optionally, the first message is an eMTC MIB message.
According to a fourth aspect of an embodiment of the present invention, there is provided a terminal including: a second transceiver and a second processor;
the method comprises the steps of receiving a first message from network equipment, wherein the first message comprises an indication field, and the indication field is used for indicating the mode of the terminal for transmitting the message in a frequency hopping mode.
Optionally, the frequency hopping manner of the terminal includes: and when the value of the indication field is null, the terminal hops on the NB resource block corresponding to the PCI.
Optionally, when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set; the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
Optionally, when the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is an even number, the number of NB resource blocks available for frequency hopping is the same as the total number of NB resource blocks in the non-overlapping portion; when the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is an odd number, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
Optionally, the terminal hops on the target frequency hopping NB resource block set, including: and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
Optionally, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1; when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2; when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
Optionally, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits.
Optionally, the first message is an eMTC MIB message.
According to a fifth aspect of embodiments of the present invention, there is provided a communication device comprising a processor, a memory and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the indication method as described in the first aspect or the steps of the indication method as described in the second aspect.
According to a sixth aspect of embodiments of the present invention, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of indicating as described in the first aspect, or the steps of the method of indicating as described in the second aspect.
In the embodiment of the invention, the network equipment sends a first message to the terminal, wherein the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal. And the mode of indicating the terminal to hop frequencies by the indication field is adopted, so that the interference between the GSM frequency point and the eMTC SIB1-BR and Paging messages is avoided when the GL frequency spectrum sharing technology and the eMTC are started simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a GL shared band;
fig. 2 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of an indication method according to an embodiment of the present invention;
FIG. 4 is a second flow chart of an indication method according to an embodiment of the invention;
FIG. 5 is a second schematic diagram of GL shared frequency band;
fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The techniques described herein are also not limited to LTE/LTE evolution (LTE-Advanced, LTE-a) systems and may also be used for various wireless communication systems such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems.
The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, universal terrestrial radio access (Universal Terrestrial Radio Access, UTRA), and the like. UTRA includes wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as the global system for mobile communications (Global System for Mobile Communication, GSM). OFDMA systems may implement radio technologies such as ultra mobile broadband (Ultra Mobile Broadband, UMB), evolved UTRA (E-UTRA), IEEE 802.11 ((Wi-Fi)), IEEE 802.16 ((WiMAX)), IEEE 802.20, flash-OFDM, etc. UTRA and E-UTRA are parts of the universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS). LTE and higher LTE (e.g., LTE-a) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-a and GSM are described in the literature from an organization named "third generation partnership project" (3rd Generation Partnership Project,3GPP). CDMA2000 and UMB are described in the literature from an organization named "third generation partnership project 2" (3 GPP 2). The techniques described herein may be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies.
Embodiments of the present invention are described below with reference to the accompanying drawings. The indication method and the indication device provided by the embodiment of the invention can be applied to a wireless communication system. Referring to fig. 2, an architecture diagram of a wireless communication system according to an embodiment of the present invention is provided. As shown in fig. 2, the wireless communication system may include: a network device 20 and a terminal, denoted User Equipment (UE) 21, the UE 21 may communicate (transmit signaling or transmit data) with the network device 20. In practical application, the connection between the devices may be wireless connection, and for convenience and intuitionistic representation of the connection relationship between the devices, a solid line is used for illustration in fig. 2. It should be noted that the communication system may include a plurality of UEs 21, and the network device 20 may communicate with the plurality of UEs 21.
The terminal provided by the embodiment of the invention can be a Mobile phone, a tablet personal computer, a notebook computer, an Ultra-Mobile personal computer (PersonalComputer, UMPC), a netbook or a personal digital assistant (PersonalDigital Assistant, PDA), a Mobile internet Device (Mobile Internet Device, MID), a Wearable Device or a vehicle-mounted Device, and the like.
The network device 20 provided in the embodiment of the present invention may be a base station, which may be a commonly used base station, an evolved node b (evolved node base station, eNB), or a network device in a 5G system (for example, a next generation base station (next generation node base station, gNB) or a transmitting and receiving point (transmission and reception point, TRP)) and the like.
Referring to fig. 3, an embodiment of the present invention provides an indication method, where an execution body of the method is a network device, and specific steps of the method are as follows:
step 301: sending a first message to a terminal;
in the embodiment of the invention, the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal.
Optionally, the first message is an enhanced machine type communication master information block (Enhancement Machine Type Communication Master Information Block, eMTC MIB) message.
Optionally, the indication field is "SIB1 orpanghopingpattern", by which the terminal is indicated whether to transmit SIB1-BR and Paging messages using the new frequency hopping pattern.
Further, when the value of the indication field is null, it indicates that the cell does not start the GL spectrum sharing function, and the terminal hops on the NB resource block corresponding to the PCI, that is, hops according to the frequency hopping pattern corresponding to the original PCI, and sends SIB1-BR and a Paging message.
When the value of the indication field is not null, the cell is indicated to start the GL spectrum sharing function, the terminal carries out frequency hopping according to the frequency hopping pattern reconfigured by the network equipment, and the new frequency hopping pattern is used for transmitting SIB1-BR and Paging information in a frequency hopping mode on the target NB resource block.
Specifically, the terminal hops on a set of target frequency hopping NB resource blocks.
In the embodiment of the invention, the NB resource blocks with available frequency hopping are determined according to the NB resource blocks of the non-coincident part of the GSM frequency band and the LTE frequency band.
If the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is even, the number of the NB resource blocks in the frequency hopping available is the same as the total number of the NB resource blocks in the non-overlapping portion, namely the NB resource blocks in the non-overlapping portion are all the NB resource blocks in the frequency hopping available.
If the total number of NB resource blocks in the non-overlapping part of the GSM frequency band and the LTE frequency band is odd, the number of the NB resource blocks available for frequency hopping is equal to the total number of NB resource blocks in the non-overlapping part minus 1, namely one NB resource block is removed from the NB resource blocks in the non-overlapping part, and the rest NB resource blocks are the NB resource blocks available for frequency hopping. Further, one NB resource block is removed from the non-overlapping portion of the band end.
A plurality of sets of frequency hopping NB resource blocks are determined from the frequency hopping available NB resource blocks. The target set of frequency-hopping NB resource blocks is any one of the plurality of sets of frequency-hopping NB resource blocks.
Alternatively, the cell may randomly select one set from the plurality of sets of frequency-hopping NB resource blocks as the target set of frequency-hopping NB resource blocks, and the cell may select one set with less interference from the plurality of sets of frequency-hopping NB resource blocks as the target set of frequency-hopping NB resource blocks.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of available frequency hopping NB resource blocks, and taking GL shared frequency bands in fig. 1 as an example, where the available frequency hopping NB resource blocks are NB2 and NB5, there are two sets of frequency hopping NB resource blocks, respectively, (NB 2, NB 5) and (NB 5, NB 2), where (NB 2, NB 5) indicates that the frequency hopping start position in the set is NB2, and where (NB 5, NB 2) indicates that the frequency hopping start position in the set is NB5.
Further, the terminal may start interval 0 from the frequency hopping start position in the set of target frequency hopping NB resource blocks, for example: the number of NB resource blocks in the target frequency hopping NB resource block set is 2, and the two NB resource blocks are adjacent; the terminal may also start to hop at interval 1 from the hop-start position in the target hop-NB resource block set, and take the GL shared band in fig. 1 as an example, since NB3 and NB4 cannot be used in this scenario, the interval between NB2 and NB5 may be regarded as 1.
It should be noted that, the terminal may cycle frequency hopping on NB resource blocks in the target set of frequency hopping NB resource blocks, for example: the NB resource blocks in the target frequency hopping NB resource block set are NB1, NB3 and NB5, frequency hopping is carried out at intervals 1 from NB1, and when the terminal hops to NB5, the terminal returns to NB1 again to start frequency hopping, so that cyclic frequency hopping is realized.
It will be appreciated that the above example of cyclic frequency hopping is only one possible example, and the embodiment of the present invention is not limited to the specific case of cyclic frequency hopping of a terminal.
Optionally, the number of NB resource blocks in each target set of frequency hopping NB resource blocks is m;
that is, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the set of frequency hopping NB resource blocks is 1;
when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of NB resource blocks in the frequency hopping NB resource block set is 2;
when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the set of frequency hopping NB resource blocks is 4.
Further, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits, and since each group of frequency hopping NB resource blocks is at most 4 NB resource blocks in the set of NB resource blocks, the 4-bit hexadecimal number is sufficient for indication. Wherein each digit indicates that the NB resource block at the corresponding position can be used in frequency hopping, and the terminal is informed of the specific position of SIB1-BR and Paging message transmission.
In the embodiment of the invention, the network equipment sends a first message to the terminal, wherein the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal. And the mode of indicating the terminal to hop frequencies by the indication field is adopted, so that the interference between the GSM frequency point and the eMTC SIB1-BR and Paging messages is avoided when the GL frequency spectrum sharing technology and the eMTC are started simultaneously.
Referring to fig. 4, an embodiment of the present invention provides another indication method, where an execution body of the method is a terminal, and specific steps of the method are as follows:
step 401: receiving a first message from a network device;
in the embodiment of the invention, the first message is an eMTC MIB message, and the first message includes an indication field, where the indication field is used to indicate a frequency hopping manner of the terminal.
Optionally, the first message is an eMTC MIB message.
Optionally, the indication field is "SIB1 orpanghopingpattern", by which the terminal is indicated whether to transmit SIB1-BR and Paging messages using the new frequency hopping pattern.
Further, when the value of the indication field is (null), it indicates that the cell does not start the GL spectrum sharing function, and the terminal hops on the NB resource block corresponding to the PCI, that is, hops according to the hopping pattern corresponding to the original PCI, and sends SIB1-BR and Paging messages.
When the value of the indication field is not null, the cell is indicated to start the GL spectrum sharing function, the terminal carries out frequency hopping according to the frequency hopping pattern reconfigured by the network equipment, and the new frequency hopping pattern is used for transmitting SIB1-BR and Paging information in a frequency hopping mode on the target NB resource block.
Specifically, the terminal hops on a set of target frequency hopping NB resource blocks.
In the embodiment of the invention, the NB resource blocks with available frequency hopping are determined according to the NB resource blocks of the non-coincident part of the GSM frequency band and the LTE frequency band.
If the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is even, the number of the NB resource blocks in the frequency hopping available is the same as the total number of the NB resource blocks in the non-overlapping portion, namely the NB resource blocks in the non-overlapping portion are all the NB resource blocks in the frequency hopping available.
If the total number of NB resource blocks in the non-overlapping part of the GSM frequency band and the LTE frequency band is odd, the number of the NB resource blocks available for frequency hopping is equal to the total number of NB resource blocks in the non-overlapping part minus 1, namely one NB resource block is removed from the NB resource blocks in the non-overlapping part, and the rest NB resource blocks are the NB resource blocks available for frequency hopping. Further, one NB resource block is removed from the non-overlapping portion of the band end.
A plurality of sets of frequency hopping NB resource blocks are determined from the frequency hopping available NB resource blocks. The target set of frequency-hopping NB resource blocks is any one of the plurality of sets of frequency-hopping NB resource blocks.
Alternatively, the cell may randomly select one set from the plurality of sets of frequency-hopping NB resource blocks as the target set of frequency-hopping NB resource blocks, and the cell may select one set with less interference from the plurality of sets of frequency-hopping NB resource blocks as the target set of frequency-hopping NB resource blocks.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of available frequency hopping NB resource blocks, and taking GL shared frequency bands in fig. 1 as an example, where the available frequency hopping NB resource blocks are NB2 and NB5, there are two sets of frequency hopping NB resource blocks, respectively, (NB 2, NB 5) and (NB 5, NB 2), where (NB 2, NB 5) indicates that the frequency hopping start position in the set is NB2, and where (NB 5, NB 2) indicates that the frequency hopping start position in the set is NB5.
Further, the terminal may start interval 0 from the frequency hopping start position in the set of target frequency hopping NB resource blocks, for example: the number of NB resource blocks in the target frequency hopping NB resource block set is 2, and the two NB resource blocks are adjacent; the terminal may also start to hop at interval 1 from the hop-start position in the target hop-NB resource block set, and take the GL shared band in fig. 1 as an example, since NB3 and NB4 cannot be used in this scenario, the interval between NB2 and NB5 may be regarded as 1.
It should be noted that, the terminal may cycle frequency hopping on NB resource blocks in the target set of frequency hopping NB resource blocks, for example: the NB resource blocks in the target frequency hopping NB resource block set are NB1, NB3 and NB5, frequency hopping is carried out at intervals 1 from NB1, and when the terminal hops to NB5, the terminal returns to NB1 again to start frequency hopping, so that cyclic frequency hopping is realized.
It will be appreciated that the above example of cyclic frequency hopping is only one possible example, and the embodiment of the present invention is not limited to the specific case of cyclic frequency hopping of a terminal.
Optionally, the number of NB resource blocks in each target set of frequency hopping NB resource blocks is m;
that is, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the set of frequency hopping NB resource blocks is 1;
when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of NB resource blocks in the frequency hopping NB resource block set is 2;
when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the set of frequency hopping NB resource blocks is 4.
Further, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits, and since each group of frequency hopping NB resource blocks is at most 4 NB resource blocks in the set of NB resource blocks, the 4-bit hexadecimal number is sufficient for indication. Wherein each digit indicates that the NB resource block at the corresponding position can be used in frequency hopping, and the terminal is informed of the specific position of SIB1-BR and Paging message transmission.
In the embodiment of the invention, the network equipment sends a first message to the terminal, wherein the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal. And the mode of indicating the terminal to hop frequencies by the indication field is adopted, so that the interference between the GSM frequency point and the eMTC SIB1-BR and Paging messages is avoided when the GL frequency spectrum sharing technology and the eMTC are started simultaneously.
For example, referring to fig. 1, an LTE FDD is used to configure a 10MHz bandwidth, 50 RBs, 4.4MHz is shared with GSM, and GSM shared frequency points are symmetrically distributed on both sides of the LTE bandwidth. If the NB resource blocks of the GL shared frequency band, which are not coincident, are NB2 and NB5, the frequency hopping NB resource block sets (NB 2, NB 5) and (NB 5, NB 2) may be determined, and the indication field SIB1 orpnaginghopingern may be 0X25 or 0X52, which indicates that the terminal may hop in the target frequency hopping NB resource block set (NB 2, NB 5) or (NB 5, NB 2), respectively.
For example, referring to fig. 5, an LTE FDD is used to configure a 10MHz bandwidth, 50 RBs, 4.4MHz is shared with GSM, and GSM shared frequency points are asymmetrically distributed on both sides of the LTE bandwidth. The non-coincident NB of the GL shared frequency bands is NB5, NB6, and NB7, and since NB6 is unavailable, the sets of frequency hopping NB (NB 5, NB 7) and (NB 7, NB 5) may be determined, and the indication field SIB1 orpanghopingpattern may be 0X57 or 0X75, which indicates that the terminal may hop in the target frequency hopping NB resource block set (NB 5, NB 7) or the two frequency hopping sets (NB 7, NB 5), respectively.
Referring to fig. 6, an embodiment of the present invention provides a network device 500, including: a first transceiver 501 and a processor 602;
the first transceiver 601 is configured to send a first message to a terminal, where the first message includes an indication field, and the indication field is configured to indicate a frequency hopping manner of the terminal.
Optionally, the frequency hopping manner of the terminal includes:
when the value of the indication field is null, the terminal hops frequency on the NB resource block corresponding to the PCI;
when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set;
the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
Optionally, if the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is an even number, the number of NB resource blocks available for frequency hopping is the same as the total number of NB resource blocks in the non-overlapping portion;
if the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is odd, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
Optionally, the terminal hops on the target frequency hopping NB resource block set, including:
and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
Optionally, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1;
when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2;
when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
Optionally, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits.
Optionally, the first message is an eMTC MIB message.
In the embodiment of the invention, the network equipment sends a first message to the terminal, wherein the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal. And the mode of indicating the terminal to hop frequencies by the indication field is adopted, so that the interference between the GSM frequency point and the eMTC SIB1-BR and Paging messages is avoided when the GL frequency spectrum sharing technology and the eMTC are started simultaneously.
Referring to fig. 7, an embodiment of the present invention provides a terminal 700, including: a second transceiver 701 and a second processor 702;
wherein the second transceiver 701 is configured to receive a first message from a network device, where the first message includes an indication field, where the indication field is used to indicate a manner in which the terminal hops.
Optionally, the method for sending the message by the terminal in a frequency hopping manner includes:
when the value of the indication field is null, the terminal hops to send a message on the NB resource block corresponding to the PCI;
when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set;
the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
Optionally, if the total number of NB resource blocks in the non-overlapping portion of the GSM frequency band and the LTE frequency band is an even number, the number of NB resource blocks available for frequency hopping is the same as the total number of NB resource blocks in the non-overlapping portion;
if the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is odd, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
Optionally, the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
Optionally, the terminal hops on the target frequency hopping NB resource block set, including:
and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
Optionally, when the total number of downlink resource blocks is less than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1;
when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2;
when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
Optionally, the indication field is a hexadecimal number with a bit number less than or equal to 4 bits.
Optionally, the first message is an eMTC MIB message.
In the embodiment of the invention, the network equipment sends a first message to the terminal, wherein the first message comprises an indication field, and the indication field is used for indicating the frequency hopping mode of the terminal. And the mode of indicating the terminal to hop frequencies by the indication field is adopted, so that the interference between the GSM frequency point and the eMTC SIB1-BR and Paging messages is avoided when the GL frequency spectrum sharing technology and the eMTC are started simultaneously.
Referring to fig. 8, an embodiment of the present invention provides a communication device 800 including: a processor 801, a transceiver 802, a memory 803, and a bus interface.
Among other things, the processor 801 may be responsible for managing the bus architecture and general processing. The memory 803 may store data used by the processor 801 in performing operations.
In an embodiment of the present invention, the communication device 800 may further include: a program stored on the memory 803 and executable on the processor 801, which when executed by the processor 801, implements the steps of the method provided by embodiments of the present invention.
In fig. 8, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular, one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 803. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., all as are well known in the art and, therefore, further description of embodiments of the present invention will not be provided. The bus interface provides an interface. The transceiver 802 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the above method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (20)
1. An indication method applied to a network device, the method comprising:
a first message is sent to a terminal, wherein the first message comprises an indication field, and the indication field is used for indicating a frequency hopping mode of the terminal;
the frequency hopping mode of the terminal comprises the following steps:
when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set;
the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, wherein the plurality of frequency hopping NB resource block sets are sets determined by frequency hopping available NB resource blocks, and the frequency hopping available NB resource blocks are NB resource blocks in non-overlapping portions of a global system for mobile communication GSM frequency band and a long term evolution LTE frequency band.
2. The method according to claim 1, wherein the frequency hopping manner of the terminal comprises:
and when the value of the indication field is null, the terminal hops on the narrowband NB resource block corresponding to the physical cell identifier PCI.
3. The method of claim 1, wherein the step of determining the position of the substrate comprises,
when the total number of NB resource blocks of the non-overlapping part of the GSM frequency band and the LTE frequency band is even, the number of the NB resource blocks which are available for frequency hopping is the same as the total number of NB resource blocks of the non-overlapping part;
when the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is an odd number, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
4. The method of claim 3, wherein the step of,
the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
5. The method of claim 1, wherein the terminal hopping over the set of target frequency hopping NB resource blocks comprises:
and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
6. The method of claim 1, wherein the step of determining the position of the substrate comprises,
when the total number of the downlink resource blocks is smaller than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1;
when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2;
when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
7. The method according to any one of claims 1 to 6, wherein the indication field is a hexadecimal number having a number of bits of 4 bits or less.
8. The method of any of claims 1 to 6, wherein the first message is an enhanced machine type communication master information block eMTC MIB message.
9. An indication method applied to a terminal, the method comprising:
receiving a first message from a network device, wherein the first message comprises an indication field, and the indication field is used for indicating the mode of the terminal for transmitting the message in a frequency hopping manner;
the method for the terminal to send the message in a frequency hopping manner comprises the following steps:
when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set;
the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
10. The method according to claim 9, wherein the manner in which the terminal hops to send the message comprises:
and when the value of the indication field is null, the terminal hops and sends a message on the NB resource block corresponding to the PCI.
11. The method of claim 9, wherein the step of determining the position of the substrate comprises,
when the total number of NB resource blocks of the non-overlapping part of the GSM frequency band and the LTE frequency band is even, the number of the NB resource blocks which are available for frequency hopping is the same as the total number of NB resource blocks of the non-overlapping part;
when the total number of NB resource blocks of the non-overlapping portion of the GSM frequency band and the LTE frequency band is an odd number, the number of the NB resource blocks used for frequency hopping is equal to the total number of NB resource blocks of the non-overlapping portion minus 1.
12. The method of claim 11, wherein the step of determining the position of the probe is performed,
the number of the plurality of sets of frequency hopping NB resource blocks is the same as the number of frequency hopping available NB resource blocks.
13. The method of claim 9, wherein the terminal hopping over the set of target frequency hopping NB resource blocks comprises:
and the terminal starts to hop frequency from a frequency hopping starting position in the target frequency hopping NB resource block set at interval 0 or 1.
14. The method of claim 9, wherein the step of determining the position of the substrate comprises,
when the total number of the downlink resource blocks is smaller than 12, the number of NB resource blocks in the target frequency hopping NB resource block set is 1;
when the total number of the downlink resource blocks is more than or equal to 12 and less than or equal to 50, the number of the NB resource blocks in the target frequency hopping NB resource block set is 2;
when the total number of downlink resource blocks is greater than 50, the number of NB resource blocks in the target set of frequency hopping NB resource blocks is 4.
15. The method according to any one of claims 9 to 14, wherein the indication field is a hexadecimal number with a number of bits equal to or less than 4 bits.
16. The method according to any of claims 9 to 14, wherein the first message is an eMTC MIB message.
17. A network device, comprising: a first transceiver and a first processor, wherein,
the first transceiver is configured to send a first message to a terminal, where the first message includes an indication field, where the indication field is configured to indicate a frequency hopping manner of the terminal;
the method for the terminal to send the message in a frequency hopping manner comprises the following steps:
when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set;
the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
18. A terminal, comprising: a second transceiver and a second processor, wherein,
receiving a first message from a network device, wherein the first message comprises an indication field, and the indication field is used for indicating the mode of the terminal for transmitting the message in a frequency hopping manner;
the method for the terminal to send the message in a frequency hopping manner comprises the following steps:
when the value of the indication field is not null, the terminal hops on the target frequency hopping NB resource block set;
the target frequency hopping NB resource block set is any one set of a plurality of frequency hopping NB resource block sets, the plurality of frequency hopping NB resource block sets are determined by available frequency hopping NB resource blocks, and the available frequency hopping NB resource blocks are NB resource blocks in non-overlapping portions of a GSM frequency band and an LTE frequency band.
19. A communication device comprising a processor, a memory and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the indication method of any one of claims 1 to 8 or the steps of the indication method of any one of claims 9 to 14.
20. A computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the indication method of any one of claims 1 to 8, or the steps of the indication method of any one of claims 9 to 14.
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