WO2019196689A1

WO2019196689A1 - Communication method and communication apparatus

Info

Publication number: WO2019196689A1
Application number: PCT/CN2019/080755
Authority: WO
Inventors: 刘建琴; 沈祖康; 罗俊; 黎超
Original assignee: 华为技术有限公司
Priority date: 2018-04-13
Filing date: 2019-04-01
Publication date: 2019-10-17
Also published as: CN110381588A; CN110381588B

Abstract

The present application provides a communication method and a communication apparatus. The method comprises: a terminal device receives indication information, the indication information being used for indicating that an SSB pattern is a first pattern or a second pattern; the terminal device determines the SSB pattern according to the indication information. Embodiments of the present application can improve the efficiency of accessing a network by the terminal device.

Description

Communication method and communication device

The present application claims priority to Chinese Patent Application Serial No. 20 181 033 393 8.3, filed on Apr.

Technical field

The present application relates to the field of communications and, more particularly, to a method and communication device for communication.

Background technique

A 5th Generation (5G) communication system, such as a New Radio (NR), defines a Synchronous Signal/Physical Broadcast Channel (PBCH) block (SSB). One SSB occupies four orthogonal frequency division multiplexing (OFDM) symbols, wherein the SSB includes a new radio-primary synchronization signal (NPSS) and a new radio-secondary synchronization signal (New radio-secondary synchronization signal). , NR-SSS) and New radio-physical broadcast channel (NR-PBCH).

To access the network, the terminal device needs to perform cell search and acquire cell system information. For example, the terminal device can obtain downlink synchronization with the cell by searching for the above SSB. After that, the terminal device needs to acquire system information of the cell, establish a connection with the cell through a random access procedure, and obtain uplink synchronization.

The SSB detection window (SSB detection window) is a time window defined in NR with a duration of 5 ms. In the 5 ms SSB detection window, up to L SSBs (L>1, equivalent to the maximum number of SSBs) can be transmitted.

In the NR, at each seed carrier interval, one carrier frequency band corresponds to one SSB pattern, and the network device can transmit the SSB according to an SSB pattern corresponding to the carrier frequency band. However, the existing SSB pattern may be configured with the NR. There is a conflict between the uplink and downlink resource locations, which causes the network device to send fewer SSBs in the SSB detection window according to the SSB pattern, which affects the efficiency of the terminal device accessing the network.

Therefore, how to transmit the SSB and improve the efficiency of the terminal device accessing the network becomes an urgent problem to be solved.

Summary of the invention

The present application provides a communication method and a communication device, which can improve the efficiency of a terminal device accessing a network.

In a first aspect, a method of communication is provided, the method comprising:

The terminal device receives the indication information, where the indication information is used to indicate that the SSB pattern is the first pattern or the second pattern; and the terminal device determines the SSB pattern according to the indication information.

Specifically, the SSB patterns in the prior art are fixed, which is difficult to meet the requirements of different scenarios, and affects the efficiency of the terminal device accessing the network. The embodiment of the present application may set the SSB pattern to one of the plurality of patterns, such as the first pattern and the second pattern, and the network device may determine one SSB pattern from the plurality of SSB patterns according to different scenarios, and indicate by using the indication information. The SSB pattern, in the embodiment of the present application, the network device can send the SSB according to the determined SSB pattern, so that the maximum number of SSBs that can be sent in one SSB detection window can be reached. Therefore, the embodiment of the present application can reduce the access delay, thereby improving the efficiency of the terminal device accessing the network.

In a second aspect, a method of communication is provided, the method comprising:

The network device determines the SSB pattern;

The network device sends indication information, where the indication information is used to indicate that the SSB pattern is a first pattern or a second pattern.

It should be understood that, in the embodiment of the present application, the SSB pattern may represent a mapping pattern of the SSB, and the SSB pattern may also be referred to as an SSB mapping pattern or an SSB resource mapping pattern, etc., and the embodiment of the present application is not limited thereto.

With reference to the first aspect or the second aspect, in a possible implementation manner, the subcarrier spacing SCS of the SSB corresponding to the SSB pattern is 30 kHz.

In combination with the first aspect or the second aspect, in a possible implementation manner, the SSB pattern is a pattern of an SSB transmitted on a carrier frequency band.

In combination with the first aspect or the second aspect, in a possible implementation manner, the one carrier frequency band is one of a frequency band of download frequency:

Carrier frequency band n5, carrier frequency band n6, carrier frequency band n41, carrier frequency band n77, carrier frequency band n78 and carrier frequency band n79.

In the embodiment of the present application, the SSB pattern is not fixed for the one carrier frequency band, and the network device can select the SSB pattern. For example, the network device can select the SSB pattern as the first pattern or the second pattern to avoid the prior art. The pattern corresponding to the one carrier frequency band is fixed as a resource conflict problem caused by the second pattern. Therefore, the embodiment of the present application can reduce the access delay, thereby improving the efficiency of the terminal device accessing the network.

In combination with the first aspect or the second aspect, in a possible implementation manner,

The indication information includes a first information or a sequence of information.

It should be understood that the “first information” and the “information sequence” in the embodiment of the present application only represent two forms of the first information, and the “first information” and the “information sequence” may also be called other names, for example, “the first information”. "It may be referred to as bit information, at least one bit, a set of bits, and the like. The "information sequence" may also be referred to as an information set, a sequence information, a signal set, a character string, etc., and the embodiment of the present application is not limited thereto.

The first information is carried on a bit, wherein the bit is 0 indicating a first pattern, and the bit is 1 indicating a second pattern.

With reference to the first aspect or the second aspect, in a possible implementation manner, the first information is carried in a reserved bit or a newly added bit.

In other words, the 1 bit carrying the first information may be an existing signal or an existing bit in the message, such as a reserved bit. Alternatively, the 1 bit is a newly added 1 bit in an existing message or signaling.

The receiving, by the terminal device, the indication information, that the terminal device receives the first information carried in a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control (RRC) signaling.

The network device sends the indication information, where the network device sends the first information by using a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control RRC signaling.

With reference to the first aspect or the second aspect, in a possible implementation manner, the first information is carried on a reserved bit of the PBCH.

With reference to the first aspect or the second aspect, in a possible implementation, the reserved bit is a last bit or a second last bit in a time domain indication bit of the PBCH.

Therefore, the embodiment of the present application can be compatible with the prior art by using the reserved bit bearer indication information without adding extra bits, and can reduce the implementation difficulty.

With reference to the first aspect or the second aspect, in a possible implementation manner, the first information is carried on a new one bit in the remaining minimum system information RMSI carried by the PDSCH.

Therefore, the embodiment of the present application carries the indication information by adding a single bit, and does not need to modify the bits of the existing signaling, and the number of bits of the indication information is small, for example, only 1 bit, which can be easily implemented.

With reference to the first aspect or the second aspect, in a possible implementation manner, the first information is carried on a new one bit in the measurement target MO in the RRC signaling.

With reference to the first aspect or the second aspect, in a possible implementation manner, the receiving, by the terminal device, the indication information includes: the terminal device receiving the information sequence of the PBCH.

With reference to the first aspect or the second aspect, in a possible implementation manner, the sending, by the network device, the indication information includes: sending, by the network device, the information sequence of the PBCH.

Therefore, the embodiment of the present application indicates the SSB pattern by using the existing information sequence, and does not need to send an additional signaling to indicate the SSB pattern, which can reduce signaling overhead and save network resources.

With reference to the first aspect or the second aspect, in a possible implementation manner, the information sequence includes a scrambling code sequence of a PBCH or a sequence of a demodulation reference signal DMRS of a PBCH.

The sequence of the DMRS includes a sequence obtained according to a first initialization value, and a sequence obtained according to a second initialization value, where the first initialization value corresponds to the first pattern, and the second initialization value corresponds to the second pattern ;

or,

The sequence of the DMRS includes a sequence obtained according to a first cyclic shift value, and a sequence obtained according to a second cyclic shift value, the first cyclic shift value corresponding to the first pattern, and the second cyclic shift The bit value corresponds to the second pattern.

In a third aspect, a method of transmitting is provided, the method comprising:

The terminal device determines an SSB pattern on a carrier frequency band, and the SSB pattern is a first pattern or a second pattern. The terminal device receives the first SSB according to the SSB pattern.

In the embodiment of the present application, when a plurality of SSB patterns are configured for one carrier frequency band, when an SSB pattern in one carrier frequency band conflicts with the uplink and downlink resources configured in the NR, the embodiment of the present application may adopt another one of the carrier frequency bands. An SSB pattern that does not conflict with the configured uplink and downlink resources sends an SSB. Furthermore, the embodiments of the present application can reduce or avoid the occurrence of the above conflict situation. Therefore, in the embodiment of the present application, the maximum number of SSBs that can be sent in one SSB detection window can be reduced, thereby reducing the access delay, thereby improving the efficiency of accessing the network of the terminal device.

In a fourth aspect, a method of transmitting is provided, the method comprising:

The network device determines an SSB pattern on a carrier frequency band, and the SSB pattern is a first pattern or a second pattern. The terminal device sends the first SSB according to the SSB pattern.

It should be understood that the method of the third aspect corresponds to the first method, and the method of the fourth method corresponds to the second aspect. The specific implementation manner and beneficial effects of the third aspect or the fourth aspect may be referred to the description above, and are omitted as appropriate herein. A detailed description.

In combination with the third aspect or the fourth aspect, in a possible implementation manner, the first pattern is different from the second pattern.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the terminal device determines an SSB pattern on a carrier frequency band, including:

The terminal device determines the SSB pattern according to the first information.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the first information carries a reserved bit in a broadcast channel PBCH.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the reserved bit is a last bit in the time domain indication bit of the PBCH, or a second last bit.

In combination with the third aspect or the fourth aspect, in a possible implementation, the first bit of the last bit is the a6 bit, and the second last bit is the a7 bit.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the first information is information in remaining minimum system information RMSI carried by the downlink shared channel PDSCH.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the first information is information in a measurement target MO in the radio resource control RRC signaling.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the first information is newly added 1-bit information.

With reference to the third aspect or the fourth aspect, in a possible implementation, the determining, by the terminal device, the SSB pattern on a carrier frequency band, includes: determining, by the terminal device, the SSB pattern according to the information sequence.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the information sequence is a scrambling code sequence of a PBCH in an SSB or a sequence of a DMRS.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the information sequence is a scrambling code sequence of a PBCH, where:

With reference to the third aspect or the fourth aspect, the scrambling code sequence of the PBCH is a first scrambling code sequence, and the SSB pattern is the first pattern, or

The scrambling code sequence of the PBCH is a second scrambling code sequence, and the SSB pattern is the second pattern.

In a possible implementation manner, the information sequence is a sequence of a demodulation reference signal DMRS of the PBCH, where:

With reference to the third aspect or the fourth aspect, in a possible implementation, the sequence of the DMRS is a first sequence, the SSB pattern is the first pattern, or the sequence of the DMRS is a second sequence. The SSB pattern is the second pattern.

With reference to the third aspect or the fourth aspect, in a possible implementation, the first sequence is a sequence obtained according to a first initialization value, and the second sequence is a sequence obtained according to a second initialization value, The first initialization value is a value obtained according to the first pattern, and the second initialization value is a value obtained according to the second pattern;

or,

The first sequence is a sequence obtained according to a first cyclic shift value, the second sequence is a sequence obtained according to a second cyclic shift value, and the first cyclic shift value is obtained according to the first pattern The value of the second cyclic shift value is a value obtained according to the second pattern.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the sequence of the DMRS includes a sequence obtained according to the first initialization value, and a sequence obtained according to the second initialization value, where the first initialization value is And according to the value obtained by the first pattern, the second initialization value is a value obtained according to the second pattern;

or,

The sequence of the DMRS includes a sequence obtained according to a first cyclic shift value, and a sequence obtained according to a second cyclic shift value, the first cyclic shift value being a value obtained according to the first pattern, The second cyclic shift value is a value obtained according to the second pattern.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the method further includes that the terminal device receives the second SSB.

In combination with the third aspect or the fourth aspect, in a possible implementation manner, the second SSB is different from the first SSB.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the terminal device receives the second SSB before receiving the first SSB

In combination with the third aspect or the fourth aspect, in a possible implementation manner, the second SSB is the same as the first SSB.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the terminal device determines the SSB pattern while receiving the first SSB, or the terminal device determines, after receiving the second SSB, SSB pattern.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the SSB pattern is determined according to one or more of the following ones carried in the second SSB, a reserved bit in the PBCH, and a PBCH The scrambling sequence, and the sequence of the DMRS of the PBCH.

In combination with the third aspect or the fourth aspect, in a possible implementation manner, the method further includes receiving, by the terminal device, the RMSI.

With reference to the third aspect or the fourth aspect, in a possible implementation, before the terminal device receives the first SSB according to the SSB pattern, the method further includes the terminal device receiving the RMSI.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the method further includes that the terminal device receives RRC signaling.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, before the terminal device receives the first SSB according to the SSB pattern, the method further includes the terminal device receiving the RRC signaling.

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the subcarrier spacing SCS of the first SSB is 30 KHz, or the subcarrier spacing SCS of the second SSB is 30 KHz.

In combination with the third aspect or the fourth aspect, in a possible implementation manner, the one carrier frequency band is one of a download frequency band:

With reference to the third aspect or the fourth aspect, in a possible implementation manner, the one carrier frequency band is a continuous spectrum resource.

A fifth aspect, a communication device is provided, comprising: a module for performing the first aspect or any of the possible implementations of the first aspect, or the method of the method of any of the third or third aspect, or unit.

In one implementation, the communication device is a terminal device.

In a sixth aspect, a communication device is provided, comprising: a module or a unit for performing the method of any one of the second aspect or the second aspect, or the method of any of the fourth or fourth aspect.

In one implementation, the communication device is a network device.

In a seventh aspect, a communication device is provided, including a transceiver, a processor, and a memory. The processor is for controlling a transceiver transceiver signal for storing a computer program for calling and running the computer program from the memory such that the communication device performs the first aspect and its possible implementation, or the third aspect Or a method in its possible implementation.

In one implementation, the communication device is a terminal device.

In an eighth aspect, a communication device is provided comprising a transceiver, a processor and a memory. The processor is for controlling a transceiver transceiving signal, the memory for storing a computer program for calling and running the computer program from the memory, such that the communication device performs the second aspect and its possible implementation, or the fourth aspect Or a method in its possible implementation.

In one implementation, the communication device is a network device.

According to a ninth aspect, there is provided a computer readable medium having stored thereon a computer program, which when executed by a computer, implements any of the possible implementations of the first aspect or the first aspect, or the third aspect or The method in any of the possible implementations of the three aspects.

According to a tenth aspect, there is provided a computer readable medium having stored thereon a computer program, which when executed by a computer, implements any of the possible implementations of the second aspect or the second aspect, or the fourth aspect or Any of the four possible approaches in a possible implementation.

According to an eleventh aspect, a computer program product is provided, which is implemented by a computer to implement any one of the possible implementations of the first aspect or the first aspect, or the third aspect or the third aspect The method in the implementation.

According to a twelfth aspect, there is provided a computer program product, which when executed by a computer, implements any of the possible implementations of the second aspect or the second aspect or any of the fourth or fourth aspects The method in the way.

In a thirteenth aspect, a processing apparatus is provided, including a processor and an interface;

The processor, for performing the method as an execution body of the method in any of the first aspect, the second aspect, the first aspect, or the second aspect, wherein the related data interaction process (for example, Or receive data transmission) is done through the above interface. In the specific implementation process, the foregoing interface may further complete the data interaction process by using a transceiver.

It should be understood that the processing device in the thirteenth aspect may be a chip, and the processor may be implemented by using hardware or by software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; When implemented by software, the processor can be a general purpose processor implemented by reading software code stored in a memory, which can be integrated in the processor and can exist independently of the processor. The memory and processor can communicate by wire or wirelessly.

In a fourteenth aspect, a communication system is provided, including the aforementioned network device and terminal device.

DRAWINGS

FIG. 1 is a schematic diagram of a scenario applicable to an embodiment of the present application.

2 is a schematic diagram of an SSB pattern in accordance with an embodiment of the present application.

FIG. 3 is a schematic diagram of an SSB pattern according to another embodiment of the present application.

4 is a schematic diagram of an SSB pattern according to another embodiment of the present application.

FIG. 5 is a schematic diagram of resource configuration according to an embodiment of the present application.

FIG. 6 is a schematic diagram of an SSB pattern according to another embodiment of the present application.

FIG. 7 is a schematic diagram of an SSB pattern according to another embodiment of the present application.

FIG. 8 is a schematic diagram of a communication method according to an embodiment of the present application.

FIG. 9 is a schematic diagram of a communication method according to another embodiment of the present application.

Figure 10 is a schematic diagram of a communication device in accordance with one embodiment of the present application.

FIG. 11 is a schematic diagram of a terminal device according to an embodiment of the present application.

FIG. 12 is a schematic diagram of a communication device according to another embodiment of the present application.

FIG. 13 is a schematic diagram of a network device according to an embodiment of the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The embodiments of the present application are applicable to various communication systems, and therefore, the following description is not limited to a specific communication system. The next generation communication system, that is, a fifth generation (5th generation, 5G) communication system, for example, a new radio (NR) system.

In the embodiment of the present application, the network device may be a network side device in a future 5G network, for example, a transmission point (TRP or TP) in the NR system, a base station (gNB) in the NR system, and a radio frequency unit in the NR system, such as a far A radio frequency unit, one or a group of base stations (including a plurality of antenna panels), and the like in a 5G system. Different network devices may be located in the same cell or in different cells, and are not limited herein.

In some deployments, a gNB may include a centralized unit (CU) and a distributed unit (DU). The gNB may also include a radio unit (RU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU implements radio resource control (RRC), the function of the packet data convergence protocol (PDCP) layer, and the DU implements the wireless chain. The functions of the radio link control (RLC), the media access control (MAC), and the physical (PHY) layer. Since the information of the RRC layer eventually becomes information of the PHY layer or is transformed by the information of the PHY layer, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used in this architecture. It is considered to be sent by the DU or sent by the DU+RU. It can be understood that the network device can be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into network devices in the access network RAN, and the CU may be divided into network devices in the core network CN, which is not limited herein.

In the embodiment of the present application, the terminal device may also be referred to as a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal. , a wireless communication device, a user agent, or a user device. The access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, drone devices, and terminal devices in future 5G networks or public land mobile networks in the future (public land mobile network) The terminal device and the like in the PLMN) are not limited in this embodiment of the present application.

By way of example and not limitation, in the embodiment of the present invention, the terminal device may also be a wearable device. A wearable device, which can also be called a wearable smart device, is a general term for applying wearable technology to intelligently design and wear wearable devices such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.

The embodiments of the present application can be applied to any of the foregoing communication systems. For example, the embodiment of the present application can be applied to an LTE system and a subsequent evolved system, such as 5G, or other wireless communication systems that use various radio access technologies, such as using code points. A system of multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access and other access technologies, especially suitable for scenes requiring channel information feedback and/or applying secondary precoding technology For example, a wireless network using Massive Multiple-Input Multiple-Output (Massive MIMO) technology, a wireless network using distributed antenna technology, and the like.

FIG. 1 is a schematic diagram of a scenario of a communication system applicable to an embodiment of the present application. As shown in FIG. 1, the communication system 100 includes a network side device 102, and a plurality of terminal devices (for example, a terminal device 116 and a terminal device 122). The network device 102 can provide communication services for the terminal device and access the core network, and the terminal device Communication with the network is performed by searching for a synchronization signal, a broadcast signal, or the like transmitted by the network device to access the network. For example, perform uplink/downlink transmission.

Specifically, the network side device 102 may include multiple antenna groups. Each antenna group may include multiple antennas, for example, one antenna group may include

antennas

104 and 106, another antenna group may include

antennas

106 and 110, and an additional group may include

antennas

112 and 114. Two antennas are shown in Figure 1 for each antenna group, although more or fewer antennas may be used for each group. Network side device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include various components associated with signal transmission and reception (eg, processors, modulators, multiplexers, Demodulator, demultiplexer or antenna, etc.).

The network side device 102 can communicate with a plurality of terminal devices (e.g., the terminal device 116 and the terminal device 122). However, it will be appreciated that the network side device 102 can communicate with any number of terminal devices similar to the

terminal device

116 or 122.

As shown in FIG. 1, terminal device 116 is in communication with

antennas

112 and 114, wherein

antennas

112 and 114 transmit information to terminal device 116 over forward link 116 and receive information from terminal device 116 over reverse link 120. In addition, terminal device 122 is in communication with

antennas

104 and 106, wherein

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

For example, in a frequency division duplex (FDD) system, for example, the forward link 116 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize the reverse link. 126 different frequency bands used.

As another example, in a time division duplex (TDD) system and a full duplex system, the forward link 116 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link. Link 126 can use a common frequency band.

Each set of antennas and/or areas designed for communication is referred to as a sector of the network side device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network side device 102 coverage area. In the process in which the network side device 102 communicates with the

terminal devices

116 and 122 through the

forward links

116 and 124, respectively, the transmit antenna of the network side device 102 can utilize beamforming to improve the signal to noise ratio of the

forward links

116 and 124. . In addition, when the network side device 102 uses beamforming to transmit signals to the randomly dispersed

terminal devices

116 and 122 in the relevant coverage area, the neighboring cell is compared with the manner in which the network side device transmits a signal to all of its terminal devices through a single antenna. Mobile devices in the middle are subject to less interference.

At a given time, the network side device 102, the terminal device 116, or the terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.

In addition, the communication system 100 may be a public land mobile network PLMN network or a device to device (D2D) network or a machine to machine (M2M) network or other network, and FIG. 1 is merely an example for convenience of understanding. A simplified schematic diagram of the network may also include other network devices, which are not shown in FIG.

As described above, when the terminal device needs to access the network (for example, after the terminal device is powered on, or the terminal device needs to be reconnected after the connection with the network device is disconnected), the terminal device can first complete the downlink synchronization by searching the SSB, and then acquire the system. The message may be followed by the terminal device initiating a random access procedure by establishing a random access preamble to establish a connection with the cell and obtain uplink synchronization.

Currently, in the NR, at each seed carrier interval, one carrier frequency band corresponds to one SSB pattern, and the network device can send the SSB according to the one SSB pattern corresponding to the carrier frequency band. In the NR, the mapping of the SSB is affected by the uplink and downlink configuration information, and the SSB can only be transmitted on the downlink symbols of the semi-static (down) (DL) resources and the unknown resources. An existing SSB pattern of a carrier frequency band may conflict with the uplink and downlink resources configured in the NR, and the network device sends fewer SSBs in the SSB detection window of the carrier frequency band according to the SSB pattern. The coverage requirement on the carrier frequency band cannot be met, or the maximum number of SSBs transmitted in the SSB detection window cannot be reached. As a result, the prior art needs to transmit the maximum number of SSBs through multiple rounds of transmission, resulting in access. The delay is longer, which affects the efficiency of the terminal device accessing the network.

In view of the above problem, the embodiment of the present application provides a method for communication. In the embodiment of the present application, one carrier frequency band may correspond to multiple SSB patterns, for example, corresponding to two SSB patterns, and the network device may be flexible according to different scenarios. An SSB pattern is determined from a plurality of SSB patterns, and the network device can send the SSB according to the determined SSB pattern, and the maximum number of SSBs sent in one SSB detection window can be reached. Therefore, the embodiment of the present application can reduce the access delay, thereby improving the efficiency of the terminal device accessing the network.

In other words, in the embodiment of the present application, multiple SSB patterns may be configured for one carrier frequency band. When an SSB pattern in one carrier frequency band conflicts with the uplink and downlink resources configured in the NR, the embodiment may adopt the one. Another SSB pattern of the carrier frequency band that does not conflict with the configured uplink and downlink resources transmits the SSB. Furthermore, the embodiments of the present application can reduce or avoid the occurrence of the above conflict situation. Therefore, in the embodiment of the present application, the maximum number of SSBs that can be sent in an SSB detection window can be reduced, thereby reducing the access delay, thereby improving the efficiency of the terminal device accessing the network.

Hereinafter, for ease of understanding and explanation, the execution process and actions of the communication method of the present application in the communication system will be described by way of example and not limitation.

First, in order to make the method of the embodiment of the present application easier to understand, some concepts involved in the embodiments of the present application are described below.

In the embodiment of the present application, the term "carrier frequency band" may also be referred to as an operating band, and the carrier frequency band refers to a continuous spectrum resource that the operator can use.

Table 1

For example, as shown in Table 1, a continuous spectrum of resources is 1920MHz - 1980MHz, 3300MHz - 4200MHz or 3300MHz - 3800MHz. This application does not limit this. For example, it is not limited to the spectrum resources shown in Table 1. The current 3GPP standards TS38.101 and TS38.104 define a variety of carrier frequency bands, as shown in Table 1 below. Table 1 can be the standard 5.2-1 (NR operating bands in FR1), for the same carrier frequency. In the FDD mode, the uplink corresponding spectrum resource and the downlink corresponding spectrum resource are different. In the TDD mode, the uplink corresponding spectrum resource and the downlink corresponding spectrum resource are the same. Taking the operating frequency band n41 as an example, the lower limit of the spectrum resource corresponding to the downlink is F _{DL — low} = 2496 MHz, and the upper limit F _{DL — high} = 2690 MHz. The spectrum resource corresponding to band n77 is 3300MHz–4200MHz, the spectrum resource corresponding to band n78 is 3300MHz–3800MHz, and the spectrum resource corresponding to band n79 is 4400MHz–5000MHz.

In this embodiment of the present application, one SSB occupies four consecutive orthogonal frequency division multiplexing (OFDM) symbols. The SSB detection window (burst set) is a time window defined in NR with a duration of 5 ms. In the 5 ms SSB detection window, the maximum number of LSBs can be transmitted. For different frequency ranges, the values of L are as follows:

(1) Band below 3 GHz, L=4.

(2) 3 GHz to 6 GHz band, L = 8 or 16.

(3) 6 GHz to 52.6 GHz band, L = 64.

It should be understood that the value of L in the embodiment of the present application is not limited to the above enumerated values, for example, the frequency band below 3 GHz, L may be equal to 8, or may take other values.

In NR, the SSB supports 15 kHz, 30 kHz, 120 kHz, and 240 kHz subcarrier spacing. For different subcarrier spacings, the mapping pattern of the SSB in the time domain configuration (ie, the SSB pattern) is different in one SSB detection window. In an SSB detection window in the current NR, the SSB has five different mapping patterns in the time domain. Three mapping patterns at 15 kHz and 30 kHz are given below: SSB pattern corresponding to Case A (Case A), SSB pattern corresponding to Case B (Case B), and SSB pattern corresponding to Case C (Case C).

Case A: As shown in Figure 2, for a 15 kHz subcarrier spacing, the OFDM symbol number corresponding to the optional time domain position of the first symbol of the SSB in an SSB detection window (5 ms) is {2, 8} + 14* n. For bands below 3 GHz (L = 4), n = 0, 1. For the 3 GHz to 6 GHz band (L=8), n=0, 1, 2, 3. The specific mapping mode of the SSB selectable time domain location is shown in Figure 2. When L=4, the SSB is distributed in the first slot (slot) and the second slot (slot). When L=8, SSB The slots are distributed from the first slot to the fourth slot, wherein the slot corresponding to the 15 kHz subcarrier interval is 1 ms.

For Case A, the distribution of SSBs in a 1ms (one slot) resource is shown in Figure 2, where there are two SSBs in each slot, as shown in Figure 2, in the two SSBs. One SSB occupies OFDM symbols (hereinafter referred to as symbols) 2 to 5, and the other SSB occupies symbols 8 through 11.

Case B: As shown in FIG. 3, for the 30 kHz subcarrier interval, the OFDM symbol number corresponding to the optional time domain position of the first symbol of the SSB in one SSB detection window (5 ms) is {4, 8, 16, 20 }+28*n. For bands below 3 GHz (L=4), n=0. For the 3 GHz to 6 GHz band (L=8), n=0,1. The specific mapping mode of the SSB selectable time domain location is shown in Figure 3. When L=4, the SSB is distributed in the first slot and the second slot. When L=8, SSB Distributed in the first slot to the fourth slot, wherein the 30 kHz subcarrier spacing corresponds to a slot of 0.5 ms.

For Case B, the distribution of SSBs in 1ms (two slots) resources is shown in Figure 3, where there are two SSBs in each slot, as shown in Figure 3, at the first Within the slot, one of the two SSBs occupies symbols 4 through 7, and the other SSB occupies symbols 8 through 11; in another time slot, one of the two SSBs occupies symbols 2 through 5, and the other The SSB occupies symbols 6 through 9.

Case C: As shown in FIG. 4, for a 30 kHz subcarrier interval, the OFDM symbol number corresponding to the optional time domain position of the first symbol of the SSB in one SSB detection window (5 ms) is {2, 8} + 14* n. For bands below 3 GHz (L = 4), n = 0, 1. For the 3 GHz to 6 GHz band (L=8), n=0, 1, 2, 3. The specific mapping mode of the SSB selectable time domain location is shown in Figure 4. When L=4, the SSB is distributed in the first slot (slot) and the second slot (slot). When L=8, SSB Distributed in the first slot to the fourth slot, wherein the slot corresponding to the 30 kHz subcarrier spacing is 0.5 ms.

For Case C, the distribution of SSBs in 1ms (two slots) resources is shown in Figure 4, where there are two SSBs in each slot, as shown in Figure 4, in one slot, two One SSB in the SSB occupies symbol 2 to symbol 5, and the other SSB occupies symbol 8 to symbol 11; in another slot, one SSB of the two SSBs occupies symbol 2 to symbol 5, and the other SSB occupies symbol 8 to Symbol 11.

It should be understood that the slots involved in the present invention may also be TTIs and/or time units and/or subframes and/or mini-slots, etc., and embodiments of the present application are not limited thereto.

It should be understood that, in the embodiment of the present application, the symbol between the first symbol (corresponding to OFDM symbol sequence number 0) and the first OFDM symbol of the first SSB selectable position is generally used for the downlink control channel in one time slot. . In one time slot, the symbol between the last OFDM symbol and the last symbol (corresponding to OFDM symbol number 13) of the last SSB selectable position is generally used for guard interval and uplink transmission, and the embodiment of the present application is not limited thereto.

As shown in Table 2 below, in NR, one carrier frequency band corresponds to one SSB pattern at each seed carrier interval, and Table 2 can be a standard table (Table) 5.4.3.3-1 (Applicable SS raster) Entries per operating band (FR1)). As shown in Table 2, the SSB pattern corresponding to the NR carrier frequency band (SS Block SCD) 15 kHz, such as the carrier frequency band n1, is the SSB corresponding to the Case A in the above. pattern. In the carrier frequency band supporting 30 kHz, such as the operating band n5, the carrier frequency band n6, the carrier frequency band n41, the carrier frequency band n77, the carrier frequency band n78 and the carrier frequency band n79, the corresponding SSB pattern (pattern) is the SSB pattern corresponding to Case C in the above, that is, the SSB pattern in FIG. For another example, in a carrier frequency band supporting 30 kHz, the SSB pattern corresponding to the carrier frequency band n5 is the SSB pattern corresponding to Case B in the above.

Table 2

For the subcarrier spacing of 30 kHz, in an SSB detection window, the time domain of the SSB is configured with two different mapping patterns as shown in FIG. 3 and FIG. 4, namely, the SSB pattern corresponding to Case B and the SSB pattern corresponding to Case C. The SSB pattern corresponding to the Case B (hereinafter referred to as the mapping pattern 1 or the pattern 1 for convenience of description) is mainly used in the scenario where the NR carrier and the LTE carrier coexist, and the 15 kHz CRS on the LTE carrier can be prevented from being interfered. The SSB pattern corresponding to Case C (hereinafter referred to as mapping pattern 2 or pattern 2 for convenience of description) is mainly used for other scenes other than coexistence, and mainly considers the compatibility problem between the 30 kHz SSB mapping pattern and the 15 kHz SSB mapping pattern.

Since the mapping of the SSB is affected by the uplink and downlink configuration information, the SSB can only transmit on the downlink symbols in semi-static DL and unknown resources. Therefore, the semi-static uplink and downlink configuration of the embodiment of the present application is described below.

In terms of semi-static uplink and downlink configuration, NR supports a very flexible configuration method. The uplink and downlink configuration resources of the NR include downlink (DL) resources, uplink (UL) resources, and unknown resources. The semi-static uplink and downlink configuration may be configured to the UE by using the cell-specific RRC signaling or the system information, or may be configured by the UE-specific RRC signaling. The embodiment of the present application is not limited thereto. For various subcarrier spacings (eg, 15 kHz, 30 kHz, 120 kHz, 240 kHz), the semi-static UL/DL configuration cycle supports 0.125 ms, 0.25 ms, 0.5 ms, 1 ms, 2 ms, 5 ms, and 10 ms. In addition, the subcarrier spacing above 30kHz (>=30KHz SCS) supports a 2.5ms semi-static UL/DL configuration cycle. Subcarrier spacing above 60kHz (>=60KHz SCS), supporting 1.25ms semi-static UL/DL configuration period. For a 120kHz subcarrier spacing, a 0.625ms semi-static UL/DL configuration period is supported.

For example, FIG. 5 shows a pattern of a semi-static uplink and downlink configuration with a semi-static uplink and downlink configuration period of 5 ms and a time slot of 0.5 ms. The resource distribution in the pattern is a downlink resource-an unknown resource-DL (unknown-UL), and the network device can indicate the pattern of the uplink and downlink configuration of the terminal device by using parameters (x1, x2, y1, y2). Where x1 represents the number of slots of the downlink resource, x2 represents the number of symbols of the downlink resource, y2 represents the number of symbols of the uplink resource, and y1 represents the number of slots of the uplink resource. As shown in FIG. 5, the value of x1 may be 3, the value of x2 may be 7, the value of y2 may be 7, and the value of y1 may be 3. The resource in the middle of the downlink resource and the uplink resource in the configuration period represents an unkow resource.

It should be understood that the uplink and downlink configuration patterns shown in FIG. 5 are only schematic. The period of the uplink and downlink configuration and the size of the time slot may vary according to actual conditions. For example, the configuration period may be 2.5 ms, corresponding to five 0.5 ms. The embodiment of the present application is not limited thereto.

For example, taking the period of 5 slots as an example, some uplink and downlink configuration options that are typical in actual product implementation may include: DDDSU, where each uppercase letter in the DDDSU represents one slot. The time slot indicated by D is a downlink resource, the time slot indicated by S is a special time slot, and the time slot indicated by U is an uplink resource. The special time slot may include a symbol as a downlink resource, an unknown symbol, and a symbol as a downlink resource. The uplink and downlink symbol configuration in one of the typical special time slots includes: ddddddddddxxuu. Each lowercase letter represents a symbol, the symbol represented by the letter d is a downlink resource, the symbol represented by x is an unknown symbol, and the symbol represented by u is an uplink resource. At least one of the two symbols of the resource type x is used for a guard interval between upstream and downstream resources.

Corresponding to the SSB mapping pattern 2 mentioned above (the SSB pattern corresponding to Case C), when L=8, in some typical uplink and downlink configurations, the uplink and downlink configuration of the five time slots mentioned above is DDDSU. When S is ddddddddddxxuu, it is impossible to transmit the maximum number of SSBs in the 5ms time window. Specifically, as shown in FIG. 4, in the 5 ms time window of the mapping pattern 2, the SSBs are distributed in the first 4 slots. According to the uplink and downlink configuration shown in FIG. 5, the patterns in the first four time slots shown in FIG. 6 can be obtained. Specifically, as shown in FIG. 6, the eight candidate SSBs are mapped in four slots according to the mapping pattern 2, and the tenth in the fourth slot (the slot of the resource type S) due to the uplink and downlink configuration. The resource type of the 11-symbol and the 11-symbol is x, and since at least one of the symbols of the two resource types is used for the guard interval (gap) between the uplink and downlink resources, the symbols of the two resource types of x cannot be used. All are used for downlink transmission. Therefore, the uplink and downlink configuration conflicts with the resource of the last SSB of the mapping pattern 2, causing the last SSB in the mapping pattern 2 to be destroyed. In this uplink and downlink configuration, if the SSB is transmitted according to the pattern 2 Will result in a maximum of 7 SSBs in a time detection window (5ms). As a result, the SSB coverage under the sub-carrier spacing of 30 kHz is deteriorated, which affects the efficiency of the terminal device accessing the network.

In the embodiment of the present application, in the case of the above-mentioned uplink and downlink configuration, the SSB is not used to transmit the SSB, but the SBB is transmitted by using the pattern 1. Since the SSB is not used to transmit the SSB, the embodiment of the present application can ensure that The maximum number of SSBs transmitted in a time window is 8. Therefore, the embodiment of the present application can improve the access network efficiency of the terminal device.

Specifically, in the uplink and downlink configuration of the uplink and downlink configuration, that is, the uplink and downlink of the five slots are DDDSU, and when S is ddddddddddxxuu, the pattern 1 (the SSB pattern corresponding to Case B) does not exist when L=8. The above conflicts. Specifically, as shown in FIG. 7, the eight candidate SSBs are mapped in four time slots according to the pattern 1, because the resources of the eight SSBs are optionally mapped to the downlink resources, where the resource type is S. Within the time slot, both SSBs are located on the symbol of the resource type d in the time slot, which avoids the conflict of the SSD on the symbol of the resource type x. Therefore, if the SSB is transmitted according to the pattern 1 in the embodiment of the present application, the conflict problem of sending the SSB according to the pattern 2 is avoided, and the efficiency of the terminal device accessing the network can be improved.

By way of example and not limitation, the method of the specific communication of the embodiments of the present application is described below with reference to FIG.

Figure 8 is a schematic flow diagram of a method of communication in accordance with one embodiment of the present invention. The method as shown in FIG. 8 can be applied to any of the above communication systems. Figure 8 depicts a method of communication of an embodiment of the present application from a system perspective. Specifically, the method 800 shown in FIG. 8 includes:

810. The network device determines the SSB pattern.

Specifically, the SSB pattern in the embodiment of the present application may be the first pattern or the second pattern.

For example, in the embodiment of the present application, the first pattern may be the pattern 1, that is, the map corresponding to L=8 and Case B in the above; the second pattern may be the pattern 2, that is, the pattern corresponding to L=8 and Case C in the above, The embodiment of the present application is not limited to this. In the embodiment of the present application, the first pattern may also be referred to as a first SSB mapping pattern, a first SSB pattern, or a first SSB resource mapping pattern, etc. The second pattern may also be referred to as The embodiment of the present application is not limited to this, and is a second SSB mapping pattern, a second SSB pattern, or a second SSB resource mapping pattern.

It should be understood that in 810, the SSB pattern may correspond to a mapping pattern of SSBs within a time window of 5 ms.

Optionally, as an embodiment, the SSB pattern is a mapping pattern of an SSB transmitted on a carrier frequency band.

Optionally, the one carrier frequency band may be one of the downloaded frequency bands:

Optionally, the subcarrier spacing SCS of the SSB corresponding to the SSB pattern is 30 kHz.

Specifically, as shown in Table 1, when the SCS is 30 kHz, the carrier frequency band n5, the carrier frequency band n6, the carrier frequency band n41, the carrier frequency band n77, the carrier frequency band n78, and the carrier frequency band n79 are at L= The corresponding pattern of 8 is the pattern corresponding to Case 3, that is, the second pattern. In other words, the SSB pattern corresponding to one of the above carrier frequency bands is uniquely fixed. According to the above description, in the normal uplink and downlink configuration, for example, the uplink and downlink configuration of the five time slots is DDDSU, and when S is ddddddddddxxuu, the second pattern conflicts with the uplink and downlink configuration, affecting the terminal device accessing the network. s efficiency.

In the embodiment of the present application, the SSB pattern is not fixed for the one carrier frequency band, and the network device can select the SSB pattern. For example, the network device can select the SSB pattern as the first pattern or the second pattern, thereby avoiding the existing In the technology, the pattern corresponding to the one carrier frequency band is fixed as a resource conflict problem caused by the second pattern.

Specifically, the network device can select the SSB pattern as the first pattern or the second pattern according to the needs of the actual scene.

For example, in a cell or scenario where the coverage is not limited, the network device may determine that the SSB pattern is the second pattern; in a cell or scenario with limited coverage, the network device may determine that the SSB pattern is the first pattern.

For example, in a scenario where the NR carrier and the LTE carrier coexist, the network device may determine that the SSB pattern is the first pattern; in a scenario where only the NR carrier is used, or in a scenario where the NR carrier does not coexist with the LTE carrier, the network device may determine the scenario The SSB pattern is the second pattern.

It should be understood that the above-mentioned scenario for determining the SSB pattern is only schematic, and the network device may also determine the SSB pattern according to other conditions in other scenarios, and the embodiment of the present application is not limited thereto.

It should be understood that only the case where the SSB pattern is determined from one of the two patterns is listed above, but the embodiment of the present application is not limited thereto. For example, the SSB pattern may be one determined by the network device from multiple patterns. The pattern, the plurality of patterns is, for example, 3 patterns, 4 patterns, or more patterns.

It should be understood that only an example of determining an SSB pattern in a carrier frequency band when the SCS is 30 kHz and L=8 is mentioned herein, but the embodiment of the present application is not limited thereto, and those skilled in the art according to the above embodiment Various variants can be implemented. For example, the SCS can be 15 kHz, 60 kHz, 120 kHz, or 240 kHz; the size of the uplink and downlink configuration period corresponding to the SSB pattern is not limited to 5 ms, for example, 0.125 ms, 0.25 ms, 0.5 ms, 1 ms, 2ms, 5ms or 10ms, etc., for example, L can also take 4, 16 or other values, and embodiments of the present application are not limited thereto.

820. The network device sends the indication information.

Correspondingly, the terminal device receives the indication information.

The indication information is used to indicate that the SSB pattern is a first pattern or a second pattern.

The indication information in the embodiment of the present application may have various forms, which will be respectively described below by way of example.

Optionally, in an implementation manner, the indication information includes a first information or a sequence of information.

Optionally, the first information is carried on one bit. Wherein the bit is 0 to indicate the first pattern, the bit is 1 to indicate the second pattern; or the bit is 0 to indicate the second pattern, the bit being 1 indicates the first pattern.

Optionally, the first information is carried in a reserved bit or a newly added bit.

Optionally, the first information may be information carried in a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control RRC signaling.

Correspondingly, as an embodiment, in 820, the network device sends the indication information, including:

The network device sends the first information by using a broadcast channel PBCH, a downlink shared channel PDSCH, or a radio resource control RRC signaling.

Correspondingly, the receiving, by the terminal device, the indication information includes:

The terminal device receives the first information carried in a broadcast channel PBCH, a downlink shared channel PDSCH, or a radio resource control RRC signal.

By way of example and not limitation, several specific implementations of the first information are described below in conjunction with specific examples.

method one:

The first information is carried on the reserved bits.

For example, the first information is carried in a reserved bit of the PBCH.

Optionally, the reserved bit is a last bit or a second last bit in the time domain indication bit of the PBCH.

For example, the reserved bits are bits A6 or A7 that are reserved in the PBCH payload.

Specifically, the time domain indication bits in the PBCH include: a0, a1, a2, a3, a4, a5, a6, a7, . Wherein, the bits a0, a1, a2, a3 are the lower 4 bits of the system frame number (SFN), and a4 is the field instruction bit. When the maximum number of SSBs is equal to 64, a5, a6, a7 are SSBs. The time domain index indicates the 4th, 5th, and 6th bit in the bit. Otherwise, when the maximum number of SSBs is not equal to 64 (eg, 4, 8, 16), for example, when the maximum number of SSBs is equal to 8, a5 is used. For other uses, a6, a7 are reserved bits.

In other words, in the low frequency band, there are at least 2 unused idle bits in the information bits of the broadcast channel, for example, bits A6 and A7. Therefore, the embodiment of the present application can indicate the terminal device SSB pattern by using the reserved bit A6 or A7.

For example, if the reserved bit is 0, the first pattern is indicated by 1 to indicate the second pattern; or when the reserved bit is 0, the second pattern is indicated, and 1 indicates the first pattern.

Specifically, after the network device determines the SSB pattern, the SSB pattern is indicated by a reserved bit of the PBCH, and the terminal device determines the SSB pattern according to the value of the reserved bit after acquiring the PBCH.

Method 2:

The first information is carried on the newly added bits.

For example, the first information is carried on a new 1-bit in the remaining minimum system information RMSI carried by the PDSCH.

For example, when the newly added 1 bit is 0, the first pattern is indicated, and 1 is the second pattern; or the newly added 1 bit is 0 to indicate the second pattern, and 1 is the first pattern.

Specifically, after the network device determines the SSB pattern, the SSB pattern is indicated by a new 1 bit in the RMSI, and the terminal device determines the SSB pattern according to the value of the newly added 1 bit after acquiring the RMSI.

Specifically, the network device may indicate the downlink control channel PDCCH resource through the PBCH, and indicate the PDSCH resource in the downlink control information DCI carried in the PDCCH, and the terminal device may detect the RMSI in the PDSCH, and according to the RMSI (also called the system information block) The value of the new 1-bit in 1 (System Information Block 1, SIB1) determines the SSB pattern.

Method three:

The first information is carried on the newly added bits.

For example, the first information is carried on a new 1 bit in a measurement object (MO) in RRC signaling.

The NR indicates the information of the actually transmitted SSB in the MO through a full bit map, which represents the set of locations of all the SSBs in the neighboring cell. When the location set of the SSB is located in one of the above carrier frequency bands, since the SSB position in the one carrier frequency band is not fixed, the terminal device cannot determine the time domain position of the SSB when measuring the SSB of the neighboring cell, which is difficult to obtain. Accurate reference signal receiving power (RSRP) value. Therefore, the embodiment of the present application adds a 1 bit in the MO to indicate the pattern of the SSB in a carrier frequency band.

In other words, the MO includes configuration parameters required for the terminal device to perform mobility measurement, when two carrier frequency bands appear in the cell list in the configuration parameter, and one of the above carrier frequency bands is included, the network The device needs to indicate the SSB pattern in the carrier frequency band of the terminal device, so that the terminal device can perform accurate mobility measurement according to the SSB pattern. Specifically, the network device may indicate the SSB pattern by adding 1 bit to the MO.

It should be understood that the one carrier frequency band may be a carrier frequency band in the local cell where the terminal device is located, or may be a carrier frequency band in the neighboring cell, and the embodiment of the present application is not limited thereto.

Specifically, after the network device determines the SSB pattern, the MO is sent by using RRC signaling, and a new bit is added to the MO to indicate the SSB pattern, and the terminal device obtains the MO according to the added 1 bit. The value determines the SSB pattern. Furthermore, the terminal device can know the resource location of the SSB according to the SSB pattern, and thus can perform accurate mobility measurement.

Specific implementations in which the indication information is the first information are described above.

Some implementations in which the indication information is a sequence of information are described below.

Optionally, the information sequence is a sequence of information of a PBCH.

The network device transmits the information sequence of the PBCH.

The terminal device receives the information sequence of the PBCH.

By way of example and not limitation, several specific implementations of the information sequence are described below in conjunction with specific examples.

Method 4:

The information sequence includes a scrambling code sequence of the PBCH.

Specifically, the network device may indicate the SSB pattern by using a scrambling code sequence. For example, the network device may indicate the SSB pattern by using the information u carried in the scrambling code sequence. For example, u is the first value indicating the first pattern, where u is the first The binary value indicates the second pattern. Optionally, u is 1 bit, u is 0 to indicate the first pattern, 1 is to indicate the second pattern; or u is 0 to indicate the second pattern, and 1 is 1 to indicate the first pattern. It should be understood that the number of bits of u in the embodiment of the present application is not limited to 1, and the value of u may be any other two different values different from 0 or 1. The embodiment of the present application is not limited thereto.

Specifically, the network device can perform PBCH scrambling by the following formula:

B (i) = (b ( i) + c (i + vM bit + LuM bit)) mod 2

Wherein, B (i) is the information bit stream scrambled, b (i) is the MIB information bit stream before _{scrambling, c (i + vM bit +} LuM bit) entry for the scrambling sequence, M _bit information bit The length of the stream, v, is related to the information value corresponding to the inverse 2 bits or 3 bits of the SFN. The value of i is 0 to M _bit -1. L represents the maximum number of SSBs included in the SSB detection window, and L is 8 or, alternatively, L may be 4, 16, or 64.

Specifically, after the network device determines the SSB pattern, the SSB pattern is indicated by the u in the scrambling code sequence of the PBCH, and after acquiring the PBCH, the terminal device determines the value of u according to the scrambling code sequence, and according to the value of u. Determine the SSB pattern.

It should be understood that the above formula for scrambling is merely illustrative, and those skilled in the art can perform various possible modifications, for example, increase or decrease some parameters, for example, the above formula can be transformed into:

B(i)=(b(i)+c(i+uM _bit ))mod 2

Or, in the above formula, some coefficients, linear scaling, and the like may be set, or the above formula is not limited to the form of the multiple sums described above, for example, may be in the form of a multiplicative product, etc., and the embodiment of the present application is not limited thereto.

Method 5:

The sequence of information includes a sequence of demodulation reference signals DMRS of the PBCH.

In a possible implementation manner, the sequence of the DMRS includes a sequence obtained according to a first initialization value, and a sequence obtained according to a second initialization value, where the first initialization value corresponds to the first pattern, where The second initialization value corresponds to the second pattern.

It should be understood that the first/second initialization value corresponds to the first/second pattern, and may also be expressed as the first/second initialization value indicating the first/second pattern, or the first/second initialization value is determined according to the first/second pattern. The embodiment of the present application is not limited thereto.

For example, the initialization value representation of the sequence of DMRS is as follows:

c _init =2 ¹² (i _SSB +1)(N _cell /4+1)+2 ⁷ (i _SSB +1)+2(N _cell mod 4)+u

Where c _init is the initialization value of the PBCH DMRS sequence, i _SSB is the index value of the SSB, and N _cell is the cell identifier.

Wherein, when u is the first value, c _init represents the first initialization value, the first initialization value indicates the first pattern, c _init represents the second initialization value when u is the second value, and the second initialization value indicates the second pattern.

Optionally, u is 1 bit, u is 0 to indicate the first pattern, 1 is to indicate the second pattern; or u is 0 to indicate the second pattern, and 1 is 1 to indicate the first pattern. It should be understood that the number of bits of u in the embodiment of the present application is not limited to one bit, and the value of u may be any other two different values different from 0 or 1. The embodiment of the present application is not limited thereto.

Specifically, after the network device determines the SSB pattern, the SSB pattern is indicated by the u in the formula of the initialization value, and after acquiring the DMRS sequence, the terminal device can obtain the initialization value according to the received DMRS sequence, thereby being able to determine The value of u is determined, and the SSB pattern is determined according to the value of u.

It should be understood that the method for initializing the above sequence is only an example, and the embodiment of the present application does not exclude that there may be other sequence generation formulas. In other words, the formula of the above initialization value is only illustrative, and those skilled in the art can perform various possible modifications, for example, increase or decrease some parameters, or set some coefficients or factors in the above formula to perform linear scaling. Etc. For example, the above formula can be transformed into:

c _init =2 ¹² (i _SSB +1)(N _cell /4+1)+2 ⁷ (i _SSB +1)+2(N _cell mod 4)+a u

Where a represents a scaling factor and may be a constant that is not equal to zero.

Or the above formula is not limited to the above-described form of multiple sums, for example, may be in the form of a multiplicative product, etc., and the embodiment of the present application is not limited thereto.

Alternatively, in another possible implementation manner, the sequence of the DMRS includes a sequence obtained according to the first cyclic shift value, and a sequence obtained according to the second cyclic shift value, the first cyclic shift The value corresponds to the first pattern, and the second cyclic shift value corresponds to the second pattern.

It should be understood that the first/second cyclic shift value corresponds to the first/second pattern, and may also be expressed as the first/second cyclic shift value indicating the first/second pattern, or the first/second cyclic shift value is according to the first The value determined by the second pattern is not limited to this embodiment.

Specifically, after the network device determines the SSB pattern, the SSB pattern is indicated by a cyclic shift value, and after acquiring the DMRS sequence, the terminal device can obtain the cyclic shift value according to the received DMRS sequence, and thus can be according to the loop. The shift value determines the SSB pattern.

It should be understood that, for the foregoing manners 1 to 3, the indication information is required to directly indicate the SSB pattern. Therefore, the three manners may also be collectively referred to as an explicit indication manner. For the fourth and fifth modes, the SSB pattern is indirectly indicated by the information sequence. Therefore, the two methods may also be referred to as an implicit indication. The embodiment of the present application is not limited thereto.

According to the above description, the indication information in the manners of the first mode, the mode 4, the mode 4, and the mode 5 are all the information in the SSB, for example, in the SSB: the reservation in the PBCH. The bit, the scrambling sequence of the PBCH and the scrambling sequence of the DMRS of the PBCH.

Therefore, for the first mode, the fourth mode, and the fifth mode, the embodiment of the present application may be uniformly described as determining the SSB pattern according to the SSB. For the network device, the embodiment of the present application may also be uniformly described as indicating the SSB pattern by using the SSB.

For the second mode, for the terminal device, the embodiment of the present application may also be uniformly described as determining the SSB pattern according to the PDSCH. For the network device, the embodiment of the present application may also be uniformly described as indicating the SSB pattern by using the PDSCH.

For the third mode, for the terminal device, the embodiment of the present application may also be uniformly described as determining the SSB pattern according to the RRC signaling. For the network device, the embodiment of the present application may also be uniformly described as indicating the SSB pattern by using RRC signaling.

A person skilled in the art may perform various modifications according to the solution of the present application, and may combine a plurality of different implementation manners to perform a superordinate overview or the like, and the embodiment of the present application is not limited thereto.

Optionally, as an embodiment, after the network device determines the SSB pattern, the method of the embodiment of the present application further includes: the network device sending the first SSB according to the SSB pattern.

Correspondingly, the terminal device detects the first SSB according to the SSB pattern.

Optionally, as another embodiment, the method further includes: the network device sends the second SSB.

Correspondingly, the terminal device detects the second SSB.

The first SSB and the second SSB may be the same SSB or different SSBs. The embodiment itself is not limited to this.

It should be understood that, for the first mode, the fourth mode, and the fifth mode, the indication information (for example, the reserved bit in the PBCH, the scrambling sequence of the PBCH, and the scrambling sequence of the DMRS of the PBCH) may be located in the first SSB. It can also be located in the second SSB above.

Optionally, for the first mode, the fourth mode, and the fifth mode, the indication information (for example, the reserved bit in the PBCH, the scrambling sequence of the PBCH, and the scrambling sequence of the DMRS of the PBCH) are located in the second SSB. In the time domain resource dimension, the second SSB is transmitted on the time domain resource before the first SSB. That is, the terminal device determines the SSB pattern after receiving the second SSB.

Optionally, for the first mode, the fourth mode, and the fifth mode, the indication information (for example, the reserved bit in the PBCH, the scrambling sequence of the PBCH, and the scrambling sequence of the DMRS of the PBCH) are located in the first SSB. And the terminal device determines the SSB pattern while receiving the first SSB. Specifically, the first SSB may be any one of the SSB time windows corresponding to the SSB pattern except the last SSB.

Optionally, in a possible implementation, the method further includes the network device sending the RMSI. Accordingly, the terminal device receives the RMSI.

For the above two methods,

In a possible implementation, the RMSI is sent before the network device sends the first SSB. Correspondingly, the terminal device receives the RMSI before receiving the first SSB according to the SSB pattern.

Optionally, in a possible implementation, the method further includes the network device sending the RRC signaling. Correspondingly, the terminal device receives RRC signaling.

For the third mode,

In a possible implementation manner, the RRC signaling is sent before the network device sends the first SSB. Correspondingly, the RRC signaling is received before the terminal device receives the first SSB according to the SSB pattern.

It should be understood that, in the foregoing embodiment, only the example in which the SSB pattern indicated by the indication information is one of the two patterns, that is, the second pattern in the second pattern, is listed, but the embodiment of the present application is not limited thereto.

For example, the SSB pattern can be an SSB pattern in a set of SSB patterns composed of multiple patterns. Correspondingly, the indication information indicating the SSB pattern can be correspondingly modified. For example, when the SSB pattern set includes n kinds of SSB patterns, the number of bits of the indication information may be an integer greater than or equal to y, where the value of ^{y is} a minimum integer satisfying 2 ^y >= n.

830. The terminal device determines the SSB pattern according to the indication information.

Specifically, the terminal device determines, according to the indication information, that the SSB pattern is the first pattern or the second pattern.

After the terminal device determines the SSB pattern, the terminal device may detect, according to the SSB pattern, the first SSB sent by the network device to perform random access according to the first SSB.

Specifically, after determining the SSB pattern, how does the network device send the first SSB, and how the terminal device detects the first SSB according to the SSB pattern after determining the SSB pattern, and how to perform random access according to the first SSB, Refer to the description in the existing standards, and details are not described here.

It will be apparent to those skilled in the art that the number of the first, the second, and the like in the present application are only for the convenience of the description, and are not intended to limit the embodiments of the present application.

9 is a schematic diagram of a communication method in accordance with another implementation of the present application. The method as shown in FIG. 9 can be applied to any of the above communication systems. Figure 9 depicts a method of communication of an embodiment of the present application from a system perspective. Specifically, the method 900 shown in FIG. 9 includes:

910. The network device determines the SSB pattern.

Specifically, the SSB pattern is the first pattern or the second pattern.

Specifically, for the manner in which the network device determines the SSB pattern, refer to the description in 810. To avoid repetition, details are not described herein again.

920. The network device sends the first SSB according to the SSB pattern.

Correspondingly, the terminal device determines the SSB pattern and detects the first SSB according to the SSB pattern.

In a possible implementation, the terminal device determines the SSB pattern, including:

The terminal device determines the SSB pattern according to a sequence of information.

It should be understood that the manner in which the terminal device determines the SSB pattern according to the first information or the information sequence may be referred to the description in FIG. 8 above. To avoid repetition, details are not described herein again.

It should be understood that the above examples of FIG. 1 to FIG. 9 are merely for facilitating the understanding of the embodiments of the present invention, and the embodiments of the present invention are not limited to the specific numerical values or specific examples illustrated. A person skilled in the art will be able to make various modifications and changes in the embodiments according to the examples of FIG. 1 to FIG. 9 which are within the scope of the embodiments of the present invention.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application. The implementation process constitutes any limitation.

In the above, the data transmission method of the embodiment of the present invention is described in detail with reference to FIG. 1 to FIG. 9, and the apparatus of the embodiment of the present application is described below with reference to FIG. 10 to FIG.

FIG. 10 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure. The communication apparatus 1000 may include:

Processing unit 1010 and transceiver unit 1020.

Specifically, the transceiver unit is configured to receive indication information, where the indication information is used to indicate that the SSB pattern is the first pattern or the second pattern;

And a processing unit, configured to determine the SSB pattern according to the indication information.

Optionally, the indication information includes a first information or a sequence of information.

Optionally, the first information is carried on one bit, wherein the bit is 0 indicating a first pattern, and the bit is 1 indicating a second pattern.

Optionally, the transceiver unit is specifically configured to receive the first information carried in a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control (RRC) signaling.

Optionally, the first information is carried on a reserved bit of the PBCH.

Optionally, the first information is carried on a new one bit in the remaining minimum system information RMSI carried by the PDSCH.

Optionally, the first information is carried on a new one bit in the measurement target MO in the RRC signaling.

Optionally, the transceiver unit is specifically configured to receive the information sequence carried in the PBCH.

Optionally, the information sequence includes a scrambling code sequence of the PBCH or a sequence of the demodulation reference signal DMRS of the PBCH.

Optionally, the sequence of the DMRS includes a sequence obtained according to the first initialization value, and a sequence obtained according to the second initialization value, where the first initialization value corresponds to the first pattern, and the second initialization value corresponds to Said second pattern;

or,

Optionally, the SSB pattern is a pattern of SSBs transmitted on a carrier frequency band.

Optionally, the one carrier frequency band is one of the downloaded frequency bands:

The communication device 1000 provided by the present application corresponds to the process performed by the terminal device in the foregoing method embodiment of FIG. 8 or 9. The function of each unit/module in the communication device can be referred to the description above, and details are not described herein again.

It should be understood that the communication device described in FIG. 10 may be a terminal device or a chip or an integrated circuit installed in the terminal device.

For example, the communication device is used as the terminal device. FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application, which is convenient for understanding and illustration. In FIG. 11, the terminal device uses a mobile phone as an example. Fig. 11 shows only the main components of the terminal device. The terminal device 1100 shown in FIG. 11 includes a processor, a memory, a control circuit, an antenna, and an input/output device. The processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal device, executing the software program, and processing the data of the software program, for example, for supporting the terminal device to perform the actions described in the foregoing method embodiments. Memory is primarily used to store software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The control circuit together with the antenna can also be called a transceiver, and is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.

When the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When the data needs to be transmitted by wireless, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves. When data is transmitted to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that FIG. 11 shows only one memory and processor for ease of illustration. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like.

As an optional implementation manner, the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used to control and execute the entire terminal device. A software program that processes data from a software program. The processor in FIG. 11 can integrate the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network standards, and the terminal device may include a plurality of central processors to enhance its processing capabilities, and various components of the terminal devices may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

In the embodiment of the present invention, the antenna and the control circuit having the transceiving function can be regarded as the transceiving unit 111 of the terminal device 1100, for example, for supporting the terminal device to perform the transceiving function performed by the terminal device in the method implementation in FIG. 8 or 9. The processor having the processing function is regarded as the processing unit 112 of the terminal device 1100, which corresponds to the processing unit 1010 in FIG. As shown in FIG. 11, the terminal device 1100 includes a transceiver unit 111 and a processing unit 112. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, etc., and the transceiver unit corresponds to the transceiver unit 1020 in FIG. Optionally, the device for implementing the receiving function in the transceiver unit 111 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 111 is regarded as a sending unit, that is, the transceiver unit 111 includes a receiving unit and a sending unit. The receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.

The processing unit 112 can be configured to execute the instructions stored in the memory to control the transceiver unit 111 to receive signals and/or transmit signals to complete the functions of the terminal device in the foregoing method embodiment. As an implementation manner, the function of the transceiver unit 111 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.

It should be understood that the terminal device 1100 shown in FIG. 11 can implement various processes related to the terminal device in the method embodiment of FIG. 8 or 9. The operations and/or functions of the respective modules in the terminal device 1100 are respectively implemented in order to implement the corresponding processes in the foregoing method embodiments. For details, refer to the description in the foregoing method embodiments. To avoid repetition, the detailed description is omitted here.

FIG. 12 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure. The apparatus 1200 may include:

Processing unit 1210 and transceiver unit 1220.

Specifically, the processing unit is configured to determine the SSB pattern;

And a sending unit, configured to send indication information, where the indication information is used to indicate that the SSB pattern is a first pattern or a second pattern.

Optionally, the transceiver unit is specifically configured to send the first information by using a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control RRC signaling.

Optionally, the first information is carried on a reserved bit of the PBCH.

Optionally, the transceiver unit is specifically configured to send the information sequence of the PBCH.

or,

The communication device provided by the present application is a process performed by the network device in the foregoing method embodiment of FIG. 8 or 9. The function of each unit/module in the communication device can be referred to the description above, and details are not described herein again.

It should be understood that the communication device described in FIG. 12 may be a network device or a chip or an integrated circuit installed in the network device.

Taking a communication device as a network device as an example, FIG. 13 is a schematic structural diagram of a network device according to an embodiment of the present application, and may be, for example, a schematic structural diagram of a base station. As shown in FIG. 13, the network device 1300 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.

The network device 1300 may include one or more radio frequency units, such as a remote radio unit (RRU) 131 and one or more baseband units (BBUs) (also referred to as digital units, digital units, DUs). ) 132. The RRU 131 may be referred to as a transceiver unit 131, corresponding to the transceiver unit 1220 in FIG. 12. Alternatively, the transceiver unit may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1311. And RF unit 1312. The RRU 131 part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for transmitting precoding matrix information to a terminal device. The BBU 132 portion is mainly used for performing baseband processing, controlling a base station, and the like. The RRU 131 and the BBU 132 may be physically disposed together or physically separated, that is, distributed base stations.

The BBU 132 is a control center of the base station, and may also be referred to as a processing unit 132. It may correspond to the processing unit 1210 in FIG. 12, and is mainly used to perform baseband processing functions, such as channel coding, multiplexing, modulation, spreading, and the like. For example, the BBU (processing unit) can be used to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.

In an example, the BBU 132 may be configured by one or more boards, and multiple boards may jointly support a single access standard radio access network (such as an LTE network), or may separately support different access technologies. Access network (such as LTE network, 5G network or other network). The BBU 132 also includes a memory 1321 and a processor 1322. The memory 1321 is used to store necessary instructions and data. The processor 1322 is configured to control the base station to perform necessary actions, for example, to control the base station to perform an operation procedure about the network device in the foregoing method embodiment. The memory 1321 and the processor 1322 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.

It should be understood that the network device 1300 shown in FIG. 13 can implement the various processes involved in the network device in the method embodiment of FIG. 8 or 9. The operations and/or functions of the various modules in the network device 1300 are respectively implemented in order to implement the corresponding processes in the foregoing method embodiments. For details, refer to the description in the foregoing method embodiments. To avoid repetition, the detailed description is omitted here.

The embodiment of the present application further provides a processing apparatus, including a processor and an interface, and a processor, which is used to perform the communication in any of the foregoing method embodiments.

It should be understood that the above processing device may be a chip. For example, the processing device may be a Field-Programmable Gate Array (FPGA), may be an Application Specific Integrated Circuit (ASIC), or may be a System on Chip (SoC). It can be a Central Processor Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), or a Micro Controller (Micro Controller). Unit, MCU), can also be a Programmable Logic Device (PLD) or other integrated chip.

In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

It should be noted that the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated crucit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

It is to be understood that the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory. The volatile memory can be a random access memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronously connected dynamic random access memory (synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the present application further provides a communication system, which includes the foregoing network device and terminal device.

The embodiment of the present application further provides a computer readable medium having stored thereon a computer program, the method of implementing the communication in any of the foregoing method embodiments when the computer program is executed by a computer.

The embodiment of the present application further provides a computer program product, which is implemented by a computer to implement the method of communication in any of the foregoing method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk, SSD)) and so on.

It should be understood that the method for communication in the downlink transmission in the communication system is described above, but the application is not limited thereto. Alternatively, the above similar scheme may also be adopted in the uplink transmission. Narration.

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an" Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention. The implementation process constitutes any limitation.

The terms "component," "module," "system," and the like, as used in this specification, are used to mean a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and a computing device can be a component. One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers. Moreover, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.

It is also to be understood that the first, second, third, fourth, and various reference numerals are in the

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. achieve. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A method of communication, comprising:

The terminal device receives the indication information, where the indication information is used to indicate that the SSB pattern is the first pattern or the second pattern;

The terminal device determines the SSB pattern according to the indication information.
A method of communication, comprising:

The network device determines the SSB pattern;

The network device sends indication information, where the indication information is used to indicate that the SSB pattern is a first pattern or a second pattern.
Method according to claim 1 or 2, characterized in that

The indication information includes a first information or a sequence of information.
The method of claim 3 wherein:

The first information is carried on a bit, wherein the bit is 0 indicating a first pattern, and the bit is 1 indicating a second pattern.
The method according to claim 3 or 4, wherein the first information is carried on a reserved bit or a newly added bit.
The method according to any one of claims 3 to 5, characterized in that

The receiving, by the terminal device, the indication information, that the terminal device receives the first information carried in a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control (RRC) signaling.
The method according to any one of claims 3 to 5, characterized in that

The network device sends the indication information, where the network device sends the first information by using a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control RRC signaling.
A method according to any one of claims 3 to 7, wherein

The first information is carried on a reserved bit of the PBCH.
The method of claim 8 wherein:

The reserved bit is the last bit or the second to last bit of the time domain indication bit of the PBCH.
A method according to any one of claims 3 to 7, wherein

The first information is carried on a new 1 bit in the remaining minimum system information RMSI carried by the PDSCH.
A method according to any one of claims 3 to 7, wherein

The first information is carried on a new 1-bit in the measurement target MO in the RRC signaling.
The method according to any one of claims 3 to 5, characterized in that

The receiving, by the terminal device, the indication information includes: the terminal device receiving the information sequence of the PBCH.
The method according to any one of claims 3 to 5, characterized in that

The sending, by the network device, the indication information includes: sending, by the network device, the information sequence of the PBCH.
Method according to claim 12 or 13, characterized in that

The information sequence includes a scrambling code sequence of the PBCH or a sequence of the demodulation reference signal DMRS of the PBCH.
The method of claim 14 wherein:

The sequence of the DMRS includes a sequence obtained according to a first initialization value, and a sequence obtained according to a second initialization value, where the first initialization value corresponds to the first pattern, and the second initialization value corresponds to the second pattern ;

or,

The sequence of the DMRS includes a sequence obtained according to a first cyclic shift value, and a sequence obtained according to a second cyclic shift value, the first cyclic shift value corresponding to the first pattern, and the second cyclic shift The bit value corresponds to the second pattern.
A method according to any one of claims 1 to 15, wherein

The subcarrier spacing SCS of the SSB corresponding to the SSB pattern is 30 kHz.
The method according to any one of claims 1 to 16, wherein

The SSB pattern is a pattern of SSBs transmitted on a carrier frequency band.
The method according to any one of claims 1 to 17, wherein the one carrier frequency band is one of the downloaded frequency bands:

Carrier frequency band n5, carrier frequency band n6, carrier frequency band n41, carrier frequency band n77, carrier frequency band n78 and carrier frequency band n79.
A communication device, comprising:

a transceiver unit, configured to receive indication information, where the indication information is used to indicate that the SSB pattern is the first pattern or the second pattern;

And a processing unit, configured to determine the SSB pattern according to the indication information.
A communication device, comprising:

a processing unit for determining an SSB pattern;

And a sending unit, configured to send indication information, where the indication information is used to indicate that the SSB pattern is a first pattern or a second pattern.
Communication device according to claim 19 or 20, characterized in that

The indication information includes a first information or a sequence of information.
The communication device according to claim 21, wherein

The first information is carried on a bit, wherein the bit is 0 indicating a first pattern, and the bit is 1 indicating a second pattern.
The communication device according to claim 21 or 22, wherein the first information is carried in a reserved bit or a newly added bit.
A communication device according to any one of claims 21 to 23, characterized in that

The transceiver unit is specifically configured to receive the first information carried in a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control (RRC) signaling.
A communication device according to any one of claims 21 to 23, characterized in that

The transceiver unit is specifically configured to send the first information by using a broadcast channel PBCH, a downlink shared channel (PDSCH), or a radio resource control RRC signaling.
A communication device according to any one of claims 21 to 25, characterized in that

The first information is carried on a reserved bit of the PBCH.
The communication device according to claim 26, characterized in that

The reserved bit is the last bit or the second to last bit of the time domain indication bit of the PBCH.
A communication device according to any one of claims 21 to 25, characterized in that

The first information is carried on a new 1 bit in the remaining minimum system information RMSI carried by the PDSCH.
A communication device according to any one of claims 21 to 25, characterized in that

The first information is carried on a new 1-bit in the measurement target MO in the RRC signaling.
A communication device according to any one of claims 21 to 23, characterized in that

The transceiver unit is specifically configured to receive the information sequence carried in the PBCH.
A communication device according to any one of claims 21 to 23, characterized in that

The transceiver unit is specifically configured to send the information sequence of the PBCH.
A communication device according to claim 30 or 31, wherein

The information sequence includes a scrambling code sequence of the PBCH or a sequence of the demodulation reference signal DMRS of the PBCH.
A communication device according to claim 32, wherein

The sequence of the DMRS includes a sequence obtained according to a first initialization value, and a sequence obtained according to a second initialization value, where the first initialization value corresponds to the first pattern, and the second initialization value corresponds to the second pattern ;

or,

The sequence of the DMRS includes a sequence obtained according to a first cyclic shift value, and a sequence obtained according to a second cyclic shift value, the first cyclic shift value corresponding to the first pattern, and the second cyclic shift The bit value corresponds to the second pattern.
A communication device according to any one of claims 19 to 33, characterized in that

The subcarrier spacing SCS of the SSB corresponding to the SSB pattern is 30 KHz.
A communication device according to any one of claims 19 to 34, characterized in that

The SSB pattern is a pattern of SSBs transmitted on a carrier frequency band.
The communication device according to any one of claims 19 to 35, wherein said one carrier frequency band is one of a frequency band to be downloaded:

Carrier frequency band n5, carrier frequency band n6, carrier frequency band n41, carrier frequency band n77, carrier frequency band n78 and carrier frequency band n79.
A computer readable storage medium, comprising a computer program, when the computer program is run on a computer, causing the computer to perform the method of any one of claims 1 to 18.
A communication device for performing the method of any of claims 1-18.
A communication device, comprising: a processor coupled to a memory;

a memory for storing a computer program;

A processor for executing a computer program stored in the memory to cause the apparatus to perform the method of any of claims 1-18.
A communication device, comprising: a processor, a memory and a transceiver;

The memory for storing a computer program;

The processor is configured to execute a computer program stored in the memory to cause the apparatus to perform the method of any one of claims 1-18.
A processor, comprising: at least one circuit for performing the method of any of claims 1-18.
A readable storage medium, comprising a program or an instruction, the method of any one of claims 1-18 being executed when the program or instruction is run on a computer.
A computer program, comprising a program or an instruction, the method of any one of claims 1-18 being executed when the program or instruction is run on a computer.
A system, characterized in that the system comprises the above-mentioned terminal device and network device.