CN110691408B - Information transmission method, network equipment and terminal - Google Patents

Information transmission method, network equipment and terminal Download PDF

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CN110691408B
CN110691408B CN201810739665.2A CN201810739665A CN110691408B CN 110691408 B CN110691408 B CN 110691408B CN 201810739665 A CN201810739665 A CN 201810739665A CN 110691408 B CN110691408 B CN 110691408B
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signal sequence
sequence
node
ssb
sequences
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CN110691408A (en
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吴凯
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms

Abstract

The invention discloses an information transmission method, network equipment and a terminal, wherein the method comprises the following steps: broadcasting at least one signal sequence through frequency domain resources on both sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB. The embodiment of the invention can reduce the detection complexity of the broadcast information.

Description

Information transmission method, network equipment and terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a network device, and a terminal.
Background
In a 5th Generation (5G) mobile communication system, or referred to as a New Radio (NR) system, a network device needs to send a Synchronization Signal Block (SSB) for a terminal to perform Synchronization, system information acquisition, measurement, and the like. Wherein, a plurality of SSBs form an SSB burst set (SS burst set), the maximum number of SSBs contained in an SS burst set is related to the carrier frequency used by the system, wherein:
when the frequency is less than 3GHz, one SS burst set can contain 4 SSBs at most;
when the carrier frequency ranges from 3GHz to 6GHz, one SS burst set can contain 8 SSBs at most;
In the carrier frequency range of more than 6GHz, one SS burst set can contain 64 SSBs at most.
No matter how many SSBs are included in an SS burst set, it needs to be transmitted within a 5ms time window.
The NR system supports different value settings (Numerology), different numerologies correspond to different signal subcarrier spacings, and the SSB symbols and other symbols may employ different numerologies and be multiplexed. Wherein, other symbols refer to symbols that can be multiplexed with SSB symbols, such as: an uplink control symbol, a downlink control symbol, a guard interval symbol, a symbol for data transmission, and the like. Under different numerologies, the SSB may have different positions in one slot (slot), and the SSB may have different positions in the slot within the 5ms transmission window.
The SSB includes a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH), and if Broadcast information is transmitted through the PBCH, the terminal needs to perform processing such as channel estimation, detection, and decoding when receiving the Broadcast information, and the detection complexity of the Broadcast information is high.
Disclosure of Invention
The embodiment of the invention provides an information transmission method, network equipment and a terminal, aiming at solving the problem of high complexity of broadcast information detection when broadcasting is carried out through a broadcast channel.
In a first aspect, an embodiment of the present invention provides an information transmission method, applied to a network device side, including:
broadcasting at least one signal sequence through frequency domain resources on both sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB.
In a second aspect, an embodiment of the present invention further provides a network device, including:
and the broadcasting module is used for broadcasting at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB.
In a third aspect, an embodiment of the present invention provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps of the information transmission method when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides an information transmission method, applied to a terminal side, including:
receiving at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB;
Determining a target transmission position of the SSB according to the signal sequence; or, according to the signal sequence, determining the hop count information from the current broadcasting node to the host node.
In a fifth aspect, an embodiment of the present invention provides a terminal, including:
a receiving module, configured to receive at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB;
the processing module is used for determining the target transmission position of the SSB according to the signal sequence; or, according to the signal sequence, determining hop count information from the current broadcast node to the host node.
In a sixth aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the computer program is executed by the processor, the steps of the information transmission method are implemented.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the information transmission method of the network device or implements the steps of the information transmission method of the terminal.
Therefore, by adopting the technical scheme, the embodiment of the invention can directly detect the broadcasted signal sequence, reduces the processing procedures of channel estimation and the like and reduces the detection complexity of the broadcast information.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a block diagram of a mobile communication system to which an embodiment of the present invention is applicable;
fig. 2 is a schematic flowchart illustrating a method for transmitting information on a network device side according to an embodiment of the present invention;
fig. 3 is a schematic resource mapping diagram of candidate transmission locations of an SSB according to an embodiment of the present invention;
FIG. 4 is a schematic resource mapping diagram of a target transmission location of an SSB according to an embodiment of the present invention;
fig. 5 is a schematic network architecture diagram of a relay network according to a second scenario of the embodiment of the present invention;
FIG. 6 is a block diagram of a network device according to an embodiment of the present invention;
FIG. 7 is a block diagram of a network device of an embodiment of the invention;
fig. 8 is a flowchart illustrating a terminal-side information transmission method according to an embodiment of the present invention;
fig. 9 is a schematic block diagram of a terminal according to an embodiment of the present invention;
fig. 10 shows a block diagram of a terminal according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The techniques described herein are not limited to Long Time Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples, and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Referring to fig. 1, fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 11 is not limited in the embodiment of the present invention. The network device 12 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station and the terminal in the NR system are taken as an example, but does not limit the specific types of base stations and terminals.
The base stations may communicate with the terminals 11 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.
The base station may communicate wirelessly with the terminal 11 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include base stations of different types (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.
The communication links in a wireless communication system may comprise an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 11 to network device 12) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 12 to terminal 11). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.
An embodiment of the present invention provides an information transmission method, which is applied to a network device side, and as shown in fig. 2, the method includes the following steps:
step 21: broadcasting at least one signal sequence through frequency domain resources on both sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB.
After determining the transmission location of the SSB, a synchronization signal block is transmitted at the transmission location. Frequency domain resources on both sides of the Secondary Synchronization Signal (SSS) of the SSB include, but are not limited to, Resource Elements (REs) in regions on both sides of the frequency domain where the SSS is located on the mth OFDM symbol of the SSB, for example, REs numbered {48, 49, …, 55, 183, 184, …, 191} on the third OFDM symbol of the SSB. Wherein, RE numbered 48, 49, …, 55 is located at one side of SSS, RE numbered 183, 184, …, 191 is located at the other side of SSS. Therefore, at least one signal sequence is broadcasted through the frequency domain resources on two sides of the SSS, the terminal only needs to detect the sequence when receiving, and compared with the method that target information is transmitted in the PBCH, the terminal reduces the processes of receiving processing such as channel estimation, detection and decoding of the PBCH, and the complexity of receiving broadcast information in the broadcast signal can be reduced. Wherein, at least one signal sequence can carry one or more different broadcast information.
Wherein the SSB may have at least one of the following effects: as an initial timing synchronization; as measures for radio link detection, beam failure detection, radio resource management, such as Reference Signal Received Power (RSRP) including the upper layer 3(Level 3, L3), Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Reference Signal Strength Indicator (RSSI), etc.; the RSRP used for layer 1(Level 1, L1) is measured and reported; time-frequency resource location reference used for random access message one (MSG1) transmission; and is used as a reference for power control of uplink transmission, such as the terminal determining the power of uplink transmission according to the received power of the SSB.
In the licensed band, SSB is transmitted in one half frame (5ms), and the symbol index of the first OFDM symbol of SSB is related to the subcarrier spacing of SSB, where the OFDM symbol numbered 0 is the first OFDM symbol of the 1 st slot in the 5ms half frame. The SSBs are sent in the following locations:
CASE A: 15kHz subcarrier spacing, the symbol number of the first OFDM symbol transmitting SSB is {2, 8} +14 x n. When the carrier frequency is less than or equal to 3GHz, n is 0 or 1; when the carrier frequency is greater than 3GHz and less than or equal to 6GHz, n is 0, 1, 2 or 3.
CASE B: 30kHz subcarrier spacing, the first OFDM symbol to transmit SSB is numbered 4, 8, 16, 20, +28 n. When the carrier frequency is less than or equal to 3GHz, n is 0; when the carrier frequency is greater than 3GHz and less than or equal to 6GHz, n is 0 or 1.
CASE C: the 30kHz subcarrier spacing and the first OFDM symbol in which the SSB is transmitted is numbered 2, 8 +14 x n. When the carrier frequency is less than or equal to 3GHz, n is 0 or 1; when the carrier frequency is greater than 3GHz and less than or equal to 6GHz, n is 0, 1, 2 or 3.
CASE D: 120kHz subcarrier spacing, the first OFDM symbol to transmit SSB is numbered 4, 8, 16, 20 +28 n. When the carrier frequency is greater than 6GHz, n is 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17 or 18.
CASE E E: the 240kHz subcarrier spacing, the first OFDM symbol to transmit SSB is numbered {8, 12, 16, 20, 32, 36, 40, 44} +56 x n. When the carrier frequency is greater than 6GHz, n is 0, 1, 2, 3, 5, 6, 7, or 8.
It is worth noting that in a half frame in 5ms, the SSB indexes are always numbered from 0 to L-1 in ascending order in the time direction. The default time domain transmission position of the first synchronization signal block is the same as the time domain transmission position of the first synchronization signal block in the above scenario. For example, the carrier frequency is less than or equal to 3GHz, the subcarrier spacing is 15kHz, the first synchronization signal block is SSB0, and the first OFDM symbol of the default time domain transmission position of the first synchronization signal block is 2.
The indication sequences broadcast on the frequency domain resources on both sides of the SSS may be the same, for example, the network device broadcasts the same complete indication sequence through the frequency domain resources on both sides of the SSS, or the network device broadcasts the same multiple indication sequences through the frequency domain resources on both sides of the SSS.
In addition, the indication sequences broadcast on the frequency domain resources on both sides of the SSS may also be different, that is, the network device may broadcast different indication sequences through the frequency domain resources on both sides of the SSS of the SSB. It should be noted that the indication sequence of the broadcast according to the embodiment of the present invention includes, but is not limited to, the following scenarios:
the network equipment broadcasts different parts of the same signal sequence respectively through frequency domain resources on two sides of the SSS, namely, the different parts of the same signal sequence are broadcast on the frequency domain resources on two sides of the SSS;
or, the network device broadcasts at least two different signal sequences respectively through the frequency domain resources on both sides of the SSS, that is, broadcasts completely different signal sequences on the frequency domain resources on both sides of the SSS.
Further, the signal sequence according to the embodiment of the present invention is: a Gold sequence, a ZC sequence, an m sequence, an orthogonal sequence, or a pseudo-random sequence.
In the above embodiments, it is indicated that one or more different broadcast messages may be carried in the at least one signal sequence. The information transmission method according to the embodiment of the present invention will be further described with reference to examples in which signal sequences carry different broadcast information in different application scenarios.
Scene one,
In an unlicensed frequency band transmission scenario, a network device needs to listen in a corresponding frequency range, and may listen that a channel is not empty in a certain time period, which may cause that downlink transmission cannot be performed in a corresponding subsequent time period, and may cause that possible transmission positions of some SSBs have been missed. If the network device does not get a transmission opportunity at the first transmission location corresponding to a certain SSB index number, the network device may send the SSB after other candidate locations (which may be predefined locations) or a certain time delay. However, the terminal cannot determine the target transmission location (or referred to as an actual transmission location) of the SSB, and if the terminal continuously detects the SSB, unnecessary power consumption of the terminal will inevitably occur.
In order to solve the above problem, the network device may indicate a target transmission location of the SSB through the signal sequence, that is, the signal sequence transmitted through the frequency domain resources on both sides of the SSS is used to indicate the target transmission location of the SSB, wherein the sequence parameter of the signal sequence is determined according to the target transmission location.
Wherein the target transmission location is one of at least two candidate transmission locations of the SSB. The SSBs have at least two candidate transmission positions, that is, each SSB index synchronization signal block may have at least two candidate transmission positions, for example, N, where the number of candidate transmission positions of the synchronization signal block of different SSB indexes may be the same or different, but the number N of candidate transmission positions of each SSB index synchronization signal block does not exceed the maximum number L of SSBs transmissions supported by one SS burst set in the current operating frequency band. For example, when the carrier frequency is less than 3GHz, L ═ 4 SSBs can be transmitted in one SS burst set at most; when the carrier frequency ranges from 3GHz to 6GHz, at most 8 SSBs can be transmitted in one SS burst set; when the carrier frequency range is above 6GHz, a maximum of 64 SSBs can be transmitted in one SS burst set.
The network equipment selects one of the at least two candidate transmission positions as a target transmission position of the SSB in the downlink signal sending time, and the SSB is sent more flexibly due to the fact that a plurality of candidate transmission positions can be selected.
The candidate transmission positions of the SSB in the embodiment of the present invention include, but are not limited to: a default transmission location, and at least one additional transmission location. The default transmission position is the same as the transmission position of the SSB in the authorized frequency band, such as the above-mentioned cases a to E, and therefore will not be described herein again. Where for NR systems above 6GHz a subcarrier spacing of 60/120/240kHz is supported, NR below 6GHz supports a subcarrier spacing of 15/30/60 kHz. SSB can be transmitted when the subcarrier interval is 15/30/60/120/240kHz, data can be transmitted when the subcarrier interval is 15/30/60/120kHz, and data cannot be transmitted when the subcarrier interval is 240 kHz.
In this scenario, the signal sequence is used to indicate a target transmission position of the SSB, specifically, the signal sequence is used to indicate an index number of the target transmission position, or indicate a time offset of the target transmission position from a default transmission position.
Taking the index number of the target transmission position indicated by the signal sequence as an example, as shown in fig. 3, there are 4 positions that can support transmission of each SSB index, and then C is the timeSSBHas a value range of 0,1,2,3, namely 2bit information, when CSSBWhen the target transmission position of the SSB is equal to 0, the target transmission position of the SSB is a default transmission position, and when the target transmission position of the SSB is equal to CSSBWhen not equal to 0, the target transmission position of the SSB is one of the additional transmission positions, and the specific target transmission position is which additional transmission position can pass through CSSBThe value of (2) is determined.
A time offset of the target transmission location from the default transmission location is indicated in the signal sequence, the offset comprising a time domain offset value and/or a synchronization signal chunk index offset value. That is, the signal sequence is used to indicate how many OFDM symbols, slots, subframes, half-frames, or frames the SSB actual transmission position is offset from the default transmission position, or a transmission position indicating how many SSB indexes the SSB actual transmission position is offset from the default transmission position. Assuming that the Maximum duration of Channel Occupancy (MCOT) is 4 slots, as shown in fig. 4, the target transmission position of the SSB is shifted by one slot from the default transmission position, which may be C SSBA time offset representing the offset of the target transmission location of the SSB from the default transmission location.
In this scenario, a signal sequence indicating a target transmission position of the SSB is transmitted on a specific RE resource in the SSB, preferably, on frequency domain resources on both sides of the SSS, such as REs with number {48,49, …,55,183,184, …,191} on the third OFDM symbol of the SSB. The signal sequence may be a Gold sequence, a ZC sequence, an m sequence, an orthogonal sequence, or a pseudo-random sequence. In addition, these REs may jointly transmit one signal sequence, or may separately transmit a plurality of identical or different signal sequences.
For example: on an OFDM symbol where SSS is transmitted, the signal sequence is carried on REs (up to 17 REs) on idle (not allocated to other signals) frequency domain resources between SSS and PBCH, and the sequence parameters of the signal sequence are determined according to the target transmission location.
1. If the signal sequence is a Gold sequence, the Gold sequence uses CSSBCarry out an initialization, e.g. Cinit＝CSSB。
2. If the signal sequence is a ZC sequence, generating a root sequence or a cyclic shift value and C of the ZC sequenceSSBIt is related.
3. The signal sequence being an orthogonal sequence, e.g. a walsh sequence, with different orthogonal sequences corresponding to different C' s SSBCarrying the target transmission location. The orthogonal sequence may be a length-16 orthogonal sequence, or multiple length-8 orthogonal sequences, for example, two length-8 orthogonal sequences, where two length-8 signal sequences are transmitted on the idle resources on both sides of the SSS, for example, on the RE with the number {48,49, …,55} on the third OFDM symbol of the SSB, and on the RE with the number {183,184, …,190} or } {184,185, …,191}, respectively. The length-8 orthogonal sequences may be from the set shown in table 1 below:
TABLE 1
0 [+1 +1 +1 +1 +1 +1 +1 +1]
1 [+1 -1 +1 -1 +1 -1 +1 -1]
2 [+1 +1 -1 -1 +1 +1 -1 -1]
3 [+1 -1 -1 +1 +1 -1 -1 +1]
4 [+1 +1 +1 +1 -1 -1 -1 -1]
5 [+1 -1 +1 -1 -1 +1 -1 +1]
6 [+1 +1 -1 -1 -1 -1 +1 +1]
7 [+1 -1 -1 +1 -1 +1 +1 -1]
When a plurality of signal sequences are used to indicate a target transmission position, this may be indicated by:
mode 1, multiple different signal sequences jointly indicate a target transmission location. For example, two sequences with a length of 8 are divided, and each sequence corresponds to a set of transmitted sequences that includes 8 possible sequences, in which case there are at most 64 combinations, that is, at most 6 bits of information can be indicated.
Mode 2, multiple identical signal sequences jointly indicate the target transmission location. For example, the sequence is divided into two sequences with the length of 8, a transmission sequence set corresponding to each sequence includes 2 possible sequences, and two identical sequences are used to jointly indicate 2-bit information.
4. The signal sequence may also be a set of pseudo-random sequences, the set comprising a plurality of sequences, preferably a plurality of sequencesThe same sequence corresponds to different CSSB。
In addition, in addition to broadcasting the Signal sequence on the RE on the idle frequency domain resource between the SSS and the PBCH on the OFDM symbol transmitting the SSS, the Signal sequence may also be broadcast on the first OFDM symbol of the SSB, i.e. the OFDM symbol of the Primary Synchronization Signal (PSS), except for the resource occupied by the PSS.
In the information transmission method according to scenario one of the embodiments of the present invention, the network device broadcasts the signal sequence for indicating the actual transmission position of the SSB through the frequency domain resources on both sides of the SSS, so that the terminal can know the actual transmission position of the SSB without continuously detecting the SSB, which is beneficial to saving power of the terminal.
Scene two,
In Relay (Relay) technology in a wireless communication system, one or more Relay nodes are added between a base station and a terminal and are responsible for forwarding wireless signals one or more times. The wireless relay technology can be used for expanding cell coverage and making up cell coverage blind spots, and can also improve cell capacity through spatial resource multiplexing. For indoor coverage, the Relay technology can also play a role in overcoming the penetration loss and improving the indoor coverage quality. Taking a simpler two-hop relay as an example, the wireless relay divides a link from a base station to a terminal into two links from the base station to a relay node and from the relay node to the terminal, so that a link with poor quality is replaced by two links with better quality, thereby obtaining higher link capacity and better coverage. The signal is transferred from the donor base station (donor gNB) to the final terminal via a plurality of wireless relays. The number of radio links in between is also known as the "hop count". The link as in fig. 5 is a 4-hop wireless relay link. Usually, the most common is two relay links, that is, a scenario in which a signal is forwarded from a donor base station (donor gNB) to a final terminal (UE) via one wireless relay node.
In a network architecture composed of multihop relay, in order to avoid that radio resources (time-frequency resources) in the network architecture are multiplexed by different radio relay nodes, which may cause interference, for example: uplink and downlink interference, cell co-directional interference and the like can simply divide the wireless resources into one according to the hop number of the relay. Such partitioning includes orthogonal partitioning of pilot or measurement signal resources, orthogonal partitioning of radio transmission resources, orthogonal partitioning of synchronization signal resources, and so forth. The relay node can effectively reduce interference and improve the utilization efficiency of network resources by obtaining the hop count information.
Further, in order to meet the effectiveness and robustness of communication, the relay node may change the host of the previous hop at any time during the communication, and the host may be a base station or a relay node. Because the node with better link quality is dynamically selected, or the node with the shortest time delay, namely the node with the least hop count is selected, the hop count of the relay node is continuously changed. If the hop count of the current location cannot be obtained, the allocation of the network resources cannot be determined.
In order to solve the above problem, the network device may indicate hop count information of a current broadcasting node (a network device broadcasting the signal sequence) to the host node through the signal sequence, wherein a sequence parameter of the signal sequence is determined according to the hop count information of the current broadcasting node to the host node.
In this scenario, before step 21, the method further includes: and determining hop count information from the network equipment to the host node according to the hop count of the node at the upper stage. That is, the hop count information from the current broadcasting node to the host node is determined according to the hop count broadcasted by the previous node. As shown in fig. 5, when the relay node 5 maintains connection with the relay nodes 3 and 4 at the same time, and the hop counts of the relay nodes 3 and 4 to the host node are different, the hop count of the relay node 5 may be determined based on the hop counts of the relay nodes 3 and 4. For example:
the hop count of the relay node 5 is min (the hop count of the relay node 3, the hop count of the relay node 4);
the hop count of the relay node 5 is max (the hop count of the relay node 3, the hop count of the relay node 4);
the hop count of the relay node 5 is floor ((hop count of the relay node 3 + hop count of the relay node 4)/2) + 1.
In this scenario, the signal sequence is used to indicate hop count information C from the current broadcasting node to the host nodeHop countIn this scenario, a signal sequence indicating hop count information of the current broadcasting node to the donor node is transmitted on a specific RE resource in the SSB, preferably, on frequency domain resources on both sides of the SSS, such as REs numbered {48,49, …,55,183,184, …,191} on the third OFDM symbol of the SSB. The signal sequence may be a Gold sequence, a ZC sequence, an m sequence, an orthogonal sequence, or a pseudo-random sequence. In addition, these REs may jointly transmit one signal sequence, or may separately transmit a plurality of identical or different signal sequences.
For example: on an OFDM symbol transmitting SSS, the signal sequence is carried on REs (at most 17 REs) on the free (not allocated to other signals) frequency domain resources between SSS and PBCH, and the sequence parameters of the signal sequence are according to CHop countAnd (4) determining.
1. If the signal sequence is a Gold sequence, the Gold sequence uses CHop countCarry out an initialization, e.g. Cinit＝CHop count。
2. If the signal sequence is a ZC sequence, generating a root sequence or a cyclic shift value and C of the ZC sequenceHop countIt is related.
3. The signal sequence being an orthogonal sequence, e.g. a walsh sequence, with different orthogonal sequences corresponding to different C' sHop countCarrying hop count information from the current broadcast node to the host node. The orthogonal sequence may be an orthogonal sequence with a length of 16, or multiple orthogonal sequences, for example, two orthogonal sequences with a length of 8, where two signal sequences with a length of 8 are transmitted on the free resources on both sides of the SSS, respectively, such as the RE with the number {48,49, …,55} on the third OFDM symbol of the SSB, and the RE with the number {183,184, …,190} or } {184,185, …,191 }. The length-8 orthogonal sequence may be from the set shown in table 2 below:
TABLE 2
0 [+1 +1 +1 +1 +1 +1 +1 +1]
1 [+1 -1 +1 -1 +1 -1 +1 -1]
2 [+1 +1 -1 -1 +1 +1 -1 -1]
3 [+1 -1 -1 +1 +1 -1 -1 +1]
4 [+1 +1 +1 +1 -1 -1 -1 -1]
5 [+1 -1 +1 -1 -1 +1 -1 +1]
6 [+1 +1 -1 -1 -1 -1 +1 +1]
7 [+1 -1 -1 +1 -1 +1 +1 -1]
When the hop count information of the current broadcasting node to the host node is indicated using a plurality of signal sequences, it can be indicated by:
Mode 1, multiple different signal sequences jointly indicate hop count information from a current broadcast node to a host node. For example, the sequence is divided into two sequences with the length of 8, each sequence corresponds to a transmission sequence set containing 8 possible sequences, in this case, there are at most 64 combinations, that is, at most 6 bits of information can be indicated.
Mode 2, multiple identical signal sequences jointly indicate hop count information from the current broadcasting node to the host node. For example, the information is divided into two sequences with the length of 8, a transmission sequence set corresponding to each sequence contains 2 possible sequences, and two identical sequences are used for jointly indicating 2-bit information.
4. The signal sequence may also be a pseudo-random sequence set, the set comprising a plurality of sequences, different sequences corresponding to different C' sHop count。
In addition, in addition to broadcasting the Signal sequence on the RE on the idle frequency domain resource between the SSS and the PBCH on the OFDM symbol transmitting the SSS, the Signal sequence may also be broadcast on the first OFDM symbol of the SSB, i.e. the OFDM symbol of the Primary Synchronization Signal (PSS), except for the resource occupied by the PSS.
Furthermore, in this scenario, the signal sequence is further configured to indicate at least one of: whether Integrated Access and Backhaul (IAB) node Access is supported; whether it is a dedicated node for the IAB node access.
In the information transmission method in the second scenario of the embodiment of the present invention, the network device broadcasts the hop count information from the current broadcast node to the host node through the signal sequence, so that interference can be effectively reduced, and the utilization rate of network resources can be improved. In addition, the continuous change condition of the hop count can be dynamically broadcasted, and the terminal can select a better access node.
The above embodiments respectively describe in detail the information transmission methods in different scenarios, and the following embodiments further describe the corresponding network devices with reference to the accompanying drawings.
As shown in fig. 6, a network device 600 according to an embodiment of the present invention can implement details of a method for broadcasting at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB in the foregoing embodiment, and achieve the same effect, where the network device 600 specifically includes the following functional modules:
a broadcasting module 610, configured to broadcast at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB.
The indication sequences broadcasted on the frequency domain resources on two sides of the SSS are different.
Wherein, the signal sequence is: a Gold sequence, a ZC sequence, an m sequence, an orthogonal sequence, or a pseudo-random sequence.
Wherein, the signal sequence is used for indicating the target transmission position of the SSB, and the sequence parameter of the signal sequence is determined according to the target transmission position.
Wherein the target transmission location is one of at least two candidate transmission locations of the SSB.
Wherein the candidate transmission locations include a default transmission location and at least one additional transmission location.
Wherein the indication sequence is used for indicating an index number of the target transmission position or indicating a time offset of the target transmission position from a default transmission position.
The signal sequence is used for indicating hop count information from the network equipment to the host node, and the sequence parameter of the signal sequence is determined according to the hop count information from the network equipment to the host node.
Wherein, the network device 600 further includes:
and the first determining module is used for determining the hop count information from the network equipment to the host node according to the hop count of the node at the upper stage.
Wherein the signal sequence is further for indicating at least one of:
whether integrated access and backhaul IAB node access are supported;
whether it is a dedicated node for the IAB node access.
It is worth pointing out that, by adopting the above technical solution, the network device in the embodiment of the present invention can enable the terminal to reduce the processes of receiving processing such as channel estimation, detection, and decoding of the broadcast channel and reduce the complexity of receiving the broadcast information in the broadcast signal, compared with receiving the broadcast information transmitted through the broadcast channel.
In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps in the information transmission method described above are implemented. Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information transmission method as described above.
Specifically, the embodiment of the invention also provides a network device. As shown in fig. 7, the network device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the rf device 72 receives information via the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted and transmits the information to the rf device 72, and the rf device 72 processes the received information and transmits the processed information through the antenna 71.
The above-mentioned band processing means may be located in the baseband means 73, and the method performed by the network device in the above embodiment may be implemented in the baseband means 73, where the baseband means 73 includes a processor 74 and a memory 75.
The baseband device 73 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, wherein one of the chips, for example, the processor 74, is connected to the memory 75 to call up the program in the memory 75 to perform the network device operation shown in the above method embodiment.
The baseband device 73 may further include a network Interface 76, such as Common Public Radio Interface (CPRI), for exchanging information with the Radio frequency device 72.
The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.
The memory 75 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 75 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
Specifically, the network device of the embodiment of the present invention further includes: a computer program stored on the memory 75 and executable on the processor 74, the processor 74 calling the computer program in the memory 75 to execute the method performed by each module shown in fig. 6.
In particular, the computer program when invoked by the processor 74 is operable to perform: broadcasting at least one signal sequence through frequency domain resources on both sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB.
The network device in the embodiment of the invention can enable the terminal to directly detect the signal sequence by broadcasting the signal sequence on the frequency domain resources at two sides of the SSS of the SSB, thereby reducing the processes of receiving and processing such as channel estimation, detection and decoding of a broadcast channel and reducing the complexity of receiving broadcast information in the broadcast signal.
The above embodiment describes the information transmission method of the present invention from the network device side, and the following embodiment further describes the information transmission method at the terminal side with reference to the drawings.
As shown in fig. 8, the information transmission method according to the embodiment of the present invention is applied to a terminal side, and includes the following steps:
step 81: and receiving at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB.
The frequency domain resources on both sides of the SSS of the SSB include, but are not limited to, REs in regions on both sides of the frequency domain where the SSS is located on the mth OFDM symbol of the SSB, for example, REs numbered {48, 49, …, 55, 183, 184, …, 191} on the third OFDM symbol of the SSB. Wherein, RE numbered 48, 49, …, 55 is located at one side of SSS, RE numbered 183, 184, …, 191 is located at the other side of SSS. The network equipment can broadcast at least one signal sequence through frequency domain resources on two sides of the SSS, so that the terminal only needs to detect the corresponding signal sequence when receiving, the process of channel estimation of the PBCH is reduced, and the detection complexity of broadcast signals can be reduced. Wherein, at least one signal sequence can carry one or more different broadcast information.
Step 82: determining a target transmission position of the SSB according to the signal sequence; or, according to the signal sequence, determining hop count information from the current broadcast node to the host node.
When the broadcast information carried by the signal sequence is the target transmission position of the SSB, the sequence parameter of the signal sequence is associated with the target transmission position. The scenario corresponds to the scenario one, and various implementation manners of the scenario one are applicable to the embodiment at the terminal side, so that details are not described herein.
And when the broadcast information carried by the signal sequence is hop count information from the current broadcast node to the host node, the sequence parameter of the signal sequence is associated with the hop count information from the current broadcast node to the host node. The scene corresponds to the scene two, and various implementation manners of the scene two are applicable to the embodiment at the terminal side, so that details are not described herein.
In addition, after step 81, the method may further include: determining whether the current sending node supports integrated access and backhaul IAB node access or not according to the signal sequence; and/or determining whether the current broadcasting node is a special node accessed by the IAB node according to the signal sequence.
It is to be noted that the indication sequences broadcast on the frequency domain resources on both sides of the SSS may be the same, for example, the network device broadcasts the same complete indication sequence through the frequency domain resources on both sides of the SSS, or the network device broadcasts the same multiple indication sequences through the frequency domain resources on both sides of the SSS.
In addition, the indication sequences broadcast on the frequency domain resources on both sides of the SSS may also be different, that is, the network device may broadcast different indication sequences through the frequency domain resources on both sides of the SSS of the SSB.
Similar to the above embodiments, the signal sequence referred to here is: gold, ZC, m, orthogonal or pseudo-random sequences, examples of which are applicable to the terminal-side embodiments.
The terminal of the embodiment of the invention receives the signal sequence broadcasted by the network equipment, reduces the processes of receiving processing such as channel estimation, detection, decoding and the like of the broadcast channel, namely, the broadcast information can be detected, and the complexity of receiving the broadcast information is reduced.
The above embodiments describe information transmission methods in different scenarios, and a terminal corresponding to the method will be further described with reference to the accompanying drawings.
As shown in fig. 9, a terminal 900 according to an embodiment of the present invention can receive at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB in the foregoing embodiment; determining a target transmission position of the SSB according to the signal sequence; or, according to the signal sequence, the details of the hop count information method from the current broadcast node to the host node are determined, and the same effect is achieved, the terminal 900 specifically includes the following functional modules:
a receiving module 910, configured to receive at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB;
A processing module 920, configured to determine a target transmission location of the SSB according to the signal sequence; or, according to the signal sequence, determining the hop count information from the current broadcasting node to the host node.
The indication sequences broadcast on the frequency domain resources on both sides of the SSS are different.
Wherein, the signal sequence is: a Gold sequence, a ZC sequence, an m sequence, an orthogonal sequence, or a pseudo-random sequence.
Wherein the sequence parameters of the signal sequence are associated with the target transmission position.
Wherein the sequence parameter of the signal sequence is associated with the hop count information from the current broadcasting node to the host node.
Wherein, the terminal 900 further comprises:
a second determining module, configured to determine whether a current sending node supports integrated access and backhaul IAB node access according to the signal sequence;
and/or the presence of a gas in the gas,
and the third determining module is used for determining whether the current sending node is a special node accessed by the IAB node according to the signal sequence.
It is worth pointing out that, the terminal according to the embodiment of the present invention receives the signal sequence broadcasted by the network device, and reduces the processes of receiving processing such as channel estimation, detection, decoding, and the like of the broadcast channel, that is, the broadcast information can be detected, and the complexity of detecting the broadcast information is reduced.
It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can invoke the program code. As another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).
To better achieve the above object, further, fig. 10 is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention, where the terminal 100 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 1010, and power supply 1011. Those skilled in the art will appreciate that the terminal configuration shown in fig. 10 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The radio frequency unit 101 is configured to receive at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB;
a processor 1010 configured to determine a target transmission location of the SSB based on the signal sequence; or, according to the signal sequence, determining hop count information from the current broadcast node to the host node;
the terminal of the embodiment of the invention receives the signal sequence broadcasted by the network equipment, reduces the processes of receiving processing such as channel estimation, detection, decoding and the like of the broadcast channel, namely, the broadcast information can be detected, and the receiving complexity of the broadcast information is reduced.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1010; in addition, uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user through the network module 102, such as helping the user send and receive e-mails, browse web pages, access streaming media, and the like.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.
The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.
The terminal 100 also includes at least one sensor 105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, the other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation on or near the touch panel, the touch panel is transmitted to the processor 1010 to determine the type of the touch event, and then the processor 1010 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 10, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.
The interface unit 108 is an interface through which an external device is connected to the terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 100 or may be used to transmit data between the terminal 100 and an external device.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, etc. Further, memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 1010 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the terminal. Processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
The terminal 100 can also include a power supply 1011 (e.g., a battery) for supplying power to various components, and preferably, the power supply 1011 can be logically coupled to the processor 1010 via a power management system, such that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the terminal 100 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides a terminal, including a processor 1010, a memory 109, and a computer program stored in the memory 109 and capable of running on the processor 1010, where the computer program is executed by the processor 1010 to implement the processes of the information transmission method embodiment, and can achieve the same technical effects, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which 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) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims (15)

1. An information transmission method is applied to a network device side, and is characterized by comprising the following steps:
broadcasting at least one signal sequence through frequency domain resources on both sides of a secondary synchronization signal SSS in a synchronization signal block SSB,
wherein, the indication sequences broadcasted on the frequency domain resources at both sides of the SSS are different;
the signal sequence is used for indicating a target transmission position of the SSB, and the sequence parameter of the signal sequence is determined according to the target transmission position;
or
The signal sequence is used for indicating hop count information from the network equipment to the host node, and the sequence parameter of the signal sequence is determined according to the hop count information from the network equipment to the host node.
2. The information transmission method according to claim 1, wherein the signal sequence is any one of: gold sequences, ZC sequences, m sequences, orthogonal sequences and pseudo-random sequences.
3. The information transmission method of claim 1, wherein the target transmission location is one of at least two candidate transmission locations of the SSB.
4. The method of claim 3, wherein the candidate transmission locations comprise a default transmission location and at least one additional transmission location.
5. The information transmission method according to claim 4, wherein the indication sequence is used to indicate an index number of the target transmission position or a time offset between the target transmission position and the default transmission position.
6. The information transmission method according to claim 1, wherein the step of broadcasting at least one signal sequence through the target area of the time-frequency resource in which the synchronization signal block SSB is located further comprises:
and determining the hop count information from the network equipment to the host node according to the hop count of the node at the upper stage.
7. The information transmission method according to claim 1, wherein the signal sequence is further configured to indicate at least one of:
whether integrated access and backhaul IAB node access are supported;
whether it is a dedicated node accessed by the IAB node.
8. A network device, comprising:
a broadcasting module, configured to broadcast at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB, where indication sequences broadcast on the frequency domain resources on the two sides of the SSS are different;
wherein, the signal sequence is used for indicating the target transmission position of the SSB, and the sequence parameter of the signal sequence is determined according to the target transmission position;
Or
The signal sequence is used for indicating hop count information of the network device to the host node, and the sequence parameter of the signal sequence is determined according to the hop count information of the network device to the host node.
9. A network device comprising a processor, a memory, and a computer program stored on the memory and running on the processor, the processor implementing the steps of the information transmission method according to any one of claims 1 to 7 when executing the computer program.
10. An information transmission method applied to a terminal side, comprising:
receiving at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB;
determining a target transmission position of the SSB according to the signal sequence; or, according to the signal sequence, determining hop count information from the current broadcast node to the host node;
wherein, the indication sequences broadcasted on the frequency domain resources at both sides of the SSS are different;
sequence parameters of the signal sequence are associated with the target transmission location;
or
And the sequence parameter of the signal sequence is associated with the hop count information from the current broadcasting node to the host node.
11. The information transmission method according to claim 10, wherein the signal sequence is any one of: gold sequences, ZC sequences, m sequences, orthogonal sequences and pseudo-random sequences.
12. The information transmission method according to claim 10, wherein the step of receiving at least one signal sequence through frequency domain resources on both sides of a secondary synchronization signal SSS in a synchronization signal block SSB further comprises:
determining whether the current sending node supports integrated access and backhaul IAB node access according to the signal sequence;
and/or the presence of a gas in the gas,
and determining whether the current broadcast node is a special node accessed by the IAB node or not according to the signal sequence.
13. A terminal, comprising:
a receiving module, configured to receive at least one signal sequence through frequency domain resources on two sides of an auxiliary synchronization signal SSS in a synchronization signal block SSB;
the processing module is used for determining the target transmission position of the SSB according to the signal sequence; or, according to the signal sequence, determining hop count information from the current broadcast node to the host node;
wherein, the indication sequences broadcasted on the frequency domain resources at both sides of the SSS are different;
sequence parameters of the signal sequence are associated with the target transmission location;
Or
And the sequence parameter of the signal sequence is associated with the hop count information from the current broadcasting node to the host node.
14. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and running on the processor, which computer program, when executed by the processor, carries out the steps of the information transmission method according to any one of claims 10 to 12.
15. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of an information transmission method according to one of claims 1 to 7 or carries out the steps of an information transmission method according to one of claims 10 to 12.
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