RU2776677C2 - Communication method and communication device - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: invention relates to communication means. The method includes: determination of a number of a system frame of a radio system frame, in which the first broadcasting channel (hereinafter – PBCH) to be sent is located, wherein the first PBCH is included in the first SS package set of a synchronization signal (hereinafter – SS) package set, and a period of the first SS package set is one of a set of periods; processing of the first system information block (hereinafter – MIB) by the first processing method to obtain the first transport block, wherein the first processing block is used for the indication of some bits of the number of the system frame of the radio system frame, in which the first PBCH is located, and the first MIB includes remaining bits different from some bits of the number of the system frame of the radio system frame, in which the first PBCH is located; and sending, using the first PBCH, of the first transport block in the radio system frame, in which the first PBCH is located.

EFFECT: possibility of SFN transmission in different periods of SS package set installed using PBCH.

48 cl, 9 dwg

Description

[0001] The present application claims priority on the basis of Chinese Patent Application No. 201710314110.9 filed with the China Patent Office on May 5, 2017 and entitled "COMMUNICATION METHOD AND COMMUNICATION DEVICE", which is hereby incorporated by reference in its entirety.

Technical field

[0002] The present application relates to the field of communication and, more specifically, to a communication method and a communication device in the field of communication.

State of the art

[0003] As mobile services are constantly evolving, people are placing higher demands on data rates over wireless communications. In a Long Term Evolution (LTE) communication system, before accessing a network device, the user equipment (user equipment, UE) needs to obtain system information (SI) of the network device in order to know how the network device is configured, so that to work properly in a network device.

[0004] In LTE, a network device sends a master information block (MIB) to all UEs in the coverage area of the network device using a broadcast channel (eg, a physical broadcast channel, PBCH). The MIB information includes the upper 8 bits of the 10-bit system frame number (SFN), and the upper 8 bits are used to perform time alignment between the UE and the network device. In the LTE communication system, the PBCH transmission time interval (TTI) is 40 ms, the PBCH period is 10 ms, and the base station repeatedly transmits the PBCH four times in the TTI of each PBCH.

[0005] However, in the communication system of the new radio (new radio, NR) synchronization signal (synchronous signal, SS) includes: the primary synchronization signal (primary synchronous signal, PSS) and the secondary synchronization signal (secondary synchronous signal, SSS). The primary synchronous signal and the secondary synchronous signal, as well as the PBCH, constitute a synchronization signal block (SS block). At least one SS block constitutes one SS packet, and at least one SS packet constitutes one set of SS packets.

[0006] Since the TTI of the PBCH in the NR communication system is 80 ms, the SS packet set has many different periods. For example, the SS packet set period may be 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms. Currently, there is still no single way to transmit SFN in different periods of a set of SS packets established using PBCH.

The essence of the invention

[0007] The present application provides a communication method and a communication apparatus such that an SFN can be transmitted in different SS burst periods using a PBCH.

[0008] According to a first aspect, the present application provides a communication method, the method including the steps of:

determining a system frame number of a radio system frame in which the first PBCH to be sent is located, wherein the first PBCH is included in the first set of synchronization signal packets (SS packet set), and the period of the first SS packet set is one of the plurality of periods;

processing the first system information block (MIB) with a first processing method to obtain a first transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the first PBCH is located, and the first MIB includes the remaining bits other than some bits, the system frame number of the radio system frame in which the first PBCH is located; and

sending, using the first PBCH, the first transport block in the frame of the radio system in which the first PBCH is located.

[0009] Optionally, that the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the first PBCH is located can be understood as that the first processing method is used to indicate, implicitly, some bits of the system frame number of the radio system frame in which the first PBCH is located, or can be understood that the first processing method is used to implicitly indicate some bits of the system frame number of the radio system frame in which the First PBCH is located. This is not limited in this embodiment of the present application.

[0010] The present application provides a communication method and a communication apparatus such that an SFN can be transmitted in different SS burst periods using a PBCH.

[0011] In an exemplary implementation, the first PBCH is sent in a first transmission time interval (TTI), the period of the first set of SS packets is the first period of a plurality of periods in the first TTI, and the method further includes: determining a system frame number of a radio system frame , in which the second PBCH to be sent in the second TTI is located, the second PBCH is included in the second set of SS packets, and the period of the second set of SS packets is the second period of the plurality of periods; processing the second MIB with a first processing method to obtain a second transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the second PBCH is located, and the second MIB includes the remaining bits other than some bits of the system frame number a radio frame frame in which the second PBCH is located; and sent using the second PBCH, the second transport block in the frame of the radio system in which the second PBCH is located.

[0012] Optionally, the first processing method is further used to indicate some bits of the system frame number of the radio system frame in which the first PBCH is located.

[0013] In an exemplary implementation, the method further includes: determining the system frame number of the radio system frame in which the third PBCH to be sent in the third TTI is located, the third PBCH being included in the third SS packet set, and the period of the third packet set SS is the third period of the plurality of periods; processing the third MIB with a first processing method to obtain a third transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the third PBCH is located, and the third MIB includes the remaining bits other than some bits of the system frame number a radio frame frame in which the third PBCH is located; and sent using the third PBCH, the third transport block in the frame of the radio system in which the third PBCH is located.

[0014] In an exemplary implementation, the method further includes determining the system frame number of the radio system frame in which the fourth PBCH to be sent in the fourth TTI is located, the fourth PBCH being included in the fourth SS packet set, and the period of the fourth packet set SS is the fourth period of the plurality of periods; processing the fourth MIB with a first processing method to obtain a fourth transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the fourth PBCH is located, and the fourth MIB includes the remaining bits other than some bits of the system frame number a radio frame frame in which the fourth PBCH is located; and sending, using the fourth PBCH, the fourth transport block in the frame of the radio system in which the fourth PBCH is located.

[0015] In an exemplary implementation, the method further includes determining the system frame number of the radio system frame in which the fifth PBCH to be sent in the fifth TTI is located, the fifth PBCH being included in the fifth SS packet set, and the period of the fifth packet set SS is the fifth period of the plurality of periods; processing the fifth MIB with a first processing method to obtain a fifth transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the fifth PBCH is located, and the fifth MIB includes the remaining bits other than some bits of the system frame number a radio frame frame in which the fifth PBCH is located; and sending, using the fifth PBCH, the fifth transport block in the frame of the radio system in which the fifth PBCH is located.

[0016] In an exemplary implementation, the method further includes determining the system frame number of the radio system frame in which the sixth PBCH to be sent in the sixth TTI is located, where the sixth PBCH is included in the sixth packet set SS, and the period of the sixth packet set SS is the sixth period of the plurality of periods; processing the sixth MIB with a first processing method to obtain a sixth transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the sixth PBCH is located, and the sixth MIB includes the remaining bits other than some bits of the system frame number a radio frame frame in which the sixth PBCH is located; and sending, using the sixth PBCH, the sixth transport block in the frame of the radio system in which the sixth PBCH is located.

[0017] In the communication method provided in this embodiment of the present application, in two or more different SS Packet Set periods, the base station does not require an appropriate SFN transmission method in each SS Packet Set period, but transmits the remaining bits of the system frame number using the first MIB, and the first processing method used to process the first MIB implicitly specifies some bits of the system frame number. Therefore, the computational complexity of the base station and the UE can be reduced, and the complexity of SFN detection by the UE is reduced.

[0018] In an exemplary implementation, some bits include the 2nd least significant bit (eg, 2nd least significant bit) and the 3rd least significant bit (eg, 3rd least significant bit).

[0019] In an exemplary implementation, some bits include 3 least significant bits (eg, 3 least significant bits).

[0020] In an exemplary implementation, the first processing method includes at least one of cyclic redundancy check (CRC), cyclic shift, and scrambling.

[0021] According to a second aspect, the present application provides a communication method, the method including the steps of:

receiving a transport block sent by the network device using the PBCH, wherein the PBCH is included in a synchronization signal packet set (SS packet set), and the period of the SS packet set is one of a plurality of periods;

processing the transport block in a processing manner to obtain a system information block (MIB); and obtain, in a processing method, some bit positions of the system frame number of the radio system frame in which the PBCH is located, and bits in some bit positions (hereinafter referred to as some bits), wherein the MIB includes the remaining bits other than some bits, the numbers a system frame of a radio system frame in which the PBCH is located; and

determining, based on some bits and the remaining bits, the system frame number of the radio system frame in which the PBCH is located.

[0022] In the communication method provided in this embodiment of the present application, in two or more different SS Packet Set periods, the base station does not require the corresponding SFN transmission method in each SS Packet Set period, but receives some bit positions and bits in some positions bits in the way of blind detection processing in the transport block. The MIB is also obtained by a processing method, the MIB including the remaining bits. Based on some bits and the remaining bits, the system frame number of the radio system frame in which the PBCH is located is then obtained. Therefore, the computational complexity of the base station and the UE can be reduced, and the complexity of SFN detection by the UE is reduced.

[0023] In an exemplary implementation, some bits include the 2nd and 3rd least significant bits.

[0024] In a possible implementation, some bits include the 3 least significant bits.

[0025] In an exemplary implementation, the processing method includes at least one of cyclic redundancy check (CRC), cyclic shift, and descrambling.

[0026] According to a third aspect, the present application provides a communication device for data communication, configured to perform the method in accordance with the first aspect, or any possible implementation of the first aspect.

[0027] According to a fourth aspect, the present application provides a communication device for data communication, configured to perform the method according to the second aspect, or any possible implementation of the second aspect.

[0028] According to a fifth aspect, the present application provides a communication device for data transmission, where the communication device includes: a memory, a processor, a transceiver, and a computer program that is stored in the memory and can be run on the processor. When executing a computer program, the processor executes the method in accordance with the first aspect, or any possible implementation of the first aspect.

[0029] Optionally, the processor and memory that are included in the device may be further implemented using chips.

[0030] According to a sixth aspect, the present application provides a communication device for transmitting data, the communication device including: a memory, a processor, a transceiver, and a computer program that is stored in the memory and can be run on the processor, and when the computer program is executed, the processor executes the method according to the second aspect or any possible implementation of the second aspect.

[0031] Optionally, the processor and memory that are included in the device may be further implemented using chips.

[0032] According to a seventh aspect, the present application provides a computer-readable medium configured to store a computer program, where the computer program includes an instruction used to perform the method in accordance with the first aspect, or any possible implementation of the first aspect.

[0033] According to an eighth aspect, the present application provides a computer-readable medium configured to store a computer program, where the computer program includes an instruction used to perform the method according to the second aspect, or any possible implementation of the second aspect.

[0034] According to a ninth aspect, the present application provides a computer program product including an instruction where, when the computer program product is run on the computer, the computer executes the method according to the first aspect or any possible implementation of the first aspect.

[0035] According to a tenth aspect, the present application provides a computer program product including an instruction, wherein when the computer program product is run on the computer, the computer executes the method according to the second aspect or any possible implementation of the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG. 1 is a structure diagram of a wireless communication system according to an embodiment of the present application;

[0037] FIG. 2 is a flowchart of a communication method according to an embodiment of the present application;

[0038] FIG. 3 is a flowchart of another communication method according to an embodiment of the present application;

[0039] FIG. 4 is a flowchart of another communication method according to an embodiment of the present application;

[0040] FIG. 5 is a schematic diagram of each frame of a radio system included in an SS burst set period including an SS burst according to an embodiment of the present application;

[0041] FIG. 6 is a block diagram of a communication device for data transmission according to an embodiment of the present application;

[0042] FIG. 7 is a block diagram of another communication device for data transmission in accordance with an embodiment of the present application;

[0043] FIG. 8 is a block diagram of another communication device for data transmission in accordance with an embodiment of the present application; and

[0044] FIG. 9 is a block diagram of yet another communication device for data transmission in accordance with an embodiment of the present application.

Description of Embodiments

[0045] The technical solutions of the present application will now be described with reference to the accompanying drawings.

[0046] FIG. 1 shows a wireless communication system 100 in accordance with an embodiment of the present application. Wireless communication system 100 may include at least one network device. Fig. 1 shows a network device 110. The network device 110 may provide communication coverage for a particular geographic area and may communicate with a terminal device located in the coverage area. The network device 110 may be a network device (eg: base transceiver station, BTS) in a GSM system or a CDMA system, may be a network device (eg: NodeB, NB) in a WCDMA system, may be an evolved network device (eg: evolved Node B, eNB or eNodeB) in an LTE system, or may be a radio controller in a cloud radio access network (CRAN). Alternatively, the network device may be a core network, a relay node, an access point, a vehicle-embedded device, a wearable device, a network side device in the future 5G network, a network device in the future public land mobile network , PLMN) or the like.

[0047] The wireless communication system 100 further includes at least one terminal device located within the coverage area of the network device 110. FIG. 1 shows user equipment 120 and user equipment 130.

[0048] FIG. 1 shows an example of one network device and two terminal devices. Optionally, wireless communication system 100 may include a plurality of network devices, each of which may span a different number of terminal devices. This is not limited in this embodiment of the present application. Optionally, the wireless communication system 100 may further include another network entity, such as a network controller or a mobility management entity. This embodiment of the present application is not limited thereto.

[0049] It should be understood that the user equipment (user equipment, UE) may be mobile or stationary. The UE may be a terminal device, an access terminal, a user equipment, a subscriber station, a mobile station, a mobile console, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a subscriber service, a user communication device, or the like. The UE may be a cellular telephone, a wireless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a portable device having the function a wireless communication device, a computing device, another processing device connected to a wireless modem, a vehicle-embedded device, a wearable device, a terminal device in a future 5G network, a terminal device in a future advanced PLMN, or the like.

[0050] FIG. 2 is a flowchart of a communication method 200 according to an embodiment of the present application. Method 200 may be applied to the wireless communication system shown in FIG. 1. The network device may be a base station, for example, may be a hundredth base station. However, this is not limited in this embodiment of the present application.

[0051] S210: Determination of the system frame number of the radio system frame in which the first PBCH to be sent is located, where the first PBCH is included in the first set of synchronization signal packets (SS packet set), and the period of the first set of SS packets is one of the plurality of periods.

[0052] It should be understood that in an NR communication system, the synchronization signal includes a PSS and an SSS. The PSS and SSS as well as the PBCH form one SS block. At least one SS block forms one SS packet, and at least one SS packet forms one set of SS packets.

[0053] For example, one PSS, one SSS, and two PBCHs may form one SS block, four SS blocks may form one SS packet, and two SS packets may form one set of SS packets.

[0054] In addition, it should be understood that the base station can configure a plurality of SS burst periods for the UE. For example, the SS packet set period may be 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms. A set of SS packets has one period in one TTI. However, this embodiment of the present application is not limited thereto.

[0055] S220: Processing the first system information block (MIB) with the first processing method to obtain the first transport block, where the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the first PBCH is located, and the first MIB includes the remaining bits, other than some bits, are the system frame number of the radio system frame in which the first PBCH is located.

[0056] It should be understood that the system frame number of a radio system frame may be indicated using N consecutive bits. Each bit can be 0 or 1. The N bit position of each bit is called the bit position. The system frame number value can loop from 0 to 2 ^N .

[0057] For example, when the length of the system frame number is 10 bits, the system frame number 0000000010 indicates frame 2 of the radio system. The bit in the 9th bit position, which is 1, can be understood as the 9th bit, which is 1.

[0058] Optionally, the first processing method used by the base station may include at least one of CRC, cyclic shift, and scrambling. It should be understood that the first processing method is used to indicate some bits.

[0059] Optionally, the UE and the base station may agree, according to the protocol, that the first processing method is scrambling and some bits are implicitly indicated by scrambling. Alternatively, the base station may indicate, using higher layer signaling, to the UE that the first processing method is scrambling, and may indicate to the UE some bits implicitly indicated in the scrambling method. This is not limited in this embodiment of the present application.

[0060] In an optional embodiment, the base station may scramble the first MIB to obtain the first transport block. The scrambling method is used to implicitly specify some bits.

[0061] It should be understood that for scrambling, an XOR (or multiplication) operation at the bit level is performed on a pseudo-random sequence formed by the initialization seed and information bits (the remaining bits of the system frame number of the radio system frame in which the first PBCH is located), and the seed initialization is used to implicitly indicate some bits of the system frame number of the radio system frame in which the first PBCH is located. Alternatively, for scrambling, a PN sequence generated using a single initialization seed is divided into a plurality of segments, and information bits are scrambled using a plurality of PN segments.

[0062] Optionally, the UE and the base station may agree, according to the protocol, that the first processing method is CRC and some bits implicitly indicated using CRC. Alternatively, the base station may indicate, using higher layer signaling, to the UE that the first processing method is CRC, and may indicate to the UE some bits implicitly indicated using the CRC. This is not limited in this embodiment of the present application.

[0063] In an optional embodiment, the base station may perform encoding after adding the CRC bit to the first bit segment in the first MIB using the CRC mask to obtain the first transport block. The CRC mask is used to implicitly specify some bits.

[0064] It should be understood that different CRC masks used for the first MIB may generate different CRC bits. More specifically, one CRC mask may generate a unique CRC bit. It should also be understood that a unique CRC mask corresponds to different information bits.

[0065] For example, some bits may be implicitly indicated using CRC mask 0, or some bits may be implicitly indicated using CRC mask 1.

, а также упоминается как маска CRC. Информационные биты <b₀, …, …, и b_n> (более конкретно, биты, включенные в первый битовый сегмент) вводятся в регистр для генерации битов CRC. Биты CRC размещаются за исходными информационными битами, чтобы сформировать часть полной информации MIB. Базовая станция дополнительно повторяет и кодирует полную информацию MIB, чтобы получить первый транспортный блок. [0066] For example, the initial sequence a _ini of the n-bit CRC register that generates the cyclic redundancy check (CRC) bit is denoted

, and is also referred to as the CRC mask. Information bits <b ₀ , ..., ..., and b _n > (more specifically, the bits included in the first bit segment) are input into a register to generate CRC bits. The CRC bits are placed behind the original information bits to form part of the complete MIB information. The base station further repeats and encodes the complete MIB information to obtain the first transport block.

[0067] Optionally, the UE and the base station may agree, according to the protocol, that the first processing method is cyclic shift and some bits implicitly indicated using cyclic shift. Alternatively, the base station may indicate, using higher layer signaling, to the UE that the first processing method is cyclic shift, and may indicate to the UE some bits implicitly indicated using cyclic shift. This is not limited in this embodiment of the present application.

[0068] In an optional embodiment, the first processing method may be a cyclic shift. The base station may perform precoding rotation or postcoding rotation on the first bit segment in the first MIB to obtain the first transport block. The length of the cyclic shift is used to implicitly specify some bits.

[0069] For example, the cyclic shift is performed in two cases. In one case, the rotation is performed prior to encoding the information bits. Otherwise, the rotation is performed after the encoding of the information bits. It is assumed that the data to be rotated is 10010011. To perform the data rotation, the data is divided into four parts, and the length of each part is two bits (in particular, the data is divided into 10, 01, 00, and 11). After the data is rotated by one part (in other words, the length of the rotation is two bits), 11100100 (more specifically, the last part of 10010011 is rotated from the last end to the leading end) can be obtained. After the data is rotated in two parts (the length of the rotation is four bits), 00111001 is obtained. After the data is rotated in three parts (in other words, the length of the rotation is six bits), the result is 01001110.

[0070] Optionally, the first processing method may include CRC and scrambling, or the first processing method may include cyclic shift and scrambling, or the first processing method may include CRC and cyclic shift, or the first processing method may include CRC, cyclic shift and scrambling. This is not limited in this embodiment of the present application. For example, when the first processing method includes cyclic shifting and scrambling, the base station may perform precoding cyclic shifting on the remaining bits of the first MIB, then encode the first MIB, and scramble the encoded first MIB to obtain the first transport block. The cyclic shift length and the scrambling method are used together to implicitly indicate some bits.

[0071] S230: Sending, using the first PBCH, the first transport block in the frame of the radio system in which the first PBCH is located. Accordingly, the UE in the coverage area of the base station receives the first transport block sent by the network device using the first PBCH. The first PBCH is included in the first sync burst set (SS burst set), and the period of the first SS burst set is one of the plurality of periods.

[0072] Optionally, if the first PBCH is sent in the first TTI and the period of the first set of SS bursts is the first period of the plurality of periods in the first TTI, the base station may further determine the system frame number of the radio system frame in which the second PBCH to be sent in the second is located. TTI, where the second PBCH is included in the second set of SS bursts, and the period of the second set of SS bursts is the second period of the plurality of periods; process the second MIB with a first processing method to obtain a second transport block, where the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the second PBCH is located, more specifically, some bits that are implicitly indicated in the first processing method, the system frame number frame frame of the radio system frame in which the first PBCH is located are the same as some of the bits that are implicitly specified in the first processing method, the system frame number of the radio system frame in which the second PBCH is located, and the second MIB includes the remaining bits other than some bits, the system frame number of the radio system frame in which the second PBCH is located; and sent using the second PBCH, the second transport block in the frame of the radio system in which the second PBCH is located.

[0073] It should be understood that the system frame number of the radio system frame in which the first PBCH is located may be the same or may be different from the system frame number of the radio system frame in which the second PBCH is located. This is not limited in this embodiment of the present application.

[0074] Specifically, at different SS packet set periods, the system frame number of the radio system frame in which the PBCH is located is transmitted in a uniform processing manner.

[0075] S240: The UE processes the first transport block with the first processing method to obtain the first system information block (MIB); and obtains, in the first processing method, some bit positions of the system frame number of the radio system frame in which the first PBCH is located, and bits in some bit positions (hereinafter referred to as some bits), where the first MIB includes the remaining bits other than some bits, the system frame number of the radio system frame in which the first PBCH is located.

[0076] It should be understood that the first processing method used by the UE corresponds to the first processing method used by the base station. More specifically, the first processing method used by the UE and the first processing method used by the base station are reverse processes to each other.

[0077] S250: Determining, based on some bits and the remaining bits, the system frame number of the radio system frame in which the first PBCH is located.

[0078] Optionally, some bits in this embodiment of the present application may be the 2nd and 3rd least significant bits. When the length of the system frame number of the radio system frame is 10 bits, the base station may process the first MIB with the first processing method to obtain the first transport block. The first processing method is used to implicitly indicate some bits (more specifically, the 2nd and 3rd least significant bits) of the system frame number of the radio system frame. The first MIB includes the remaining bits (in particular, the most significant 7 bits and the least significant 1 bit) other than some bits of the system frame number of the radio system frame.

[0079] Accordingly, the most significant 7 bits (eg, the most significant 7 bits of the SFN) and the least significant 1 bit (eg, the least significant bit of the SFN) of the system frame number of the radio system frame are indicated by the UE on the PBCH. The 2nd and 3rd least significant bits (eg, 2nd and 3rd least significant bits of the SFN) of the system frame number of the radio system frame are implicitly indicated to the UE by the first PBCH decoding processing method.

[0080] For convenience of description, in this embodiment of the present application, bits in some bit positions are collectively referred to as some bits, and bits other than some bits of the system frame number are collectively referred to as remaining bits.

[0081] A method for transmitting an SFN by a base station with the same processing method (2nd and 3rd least significant bits implicitly indicated in the first processing method) in different SS packet set periods using PBCH is described in detail below with reference to FIG. 3.

[0082] FIG. 3 shows 6 PBCH TTIs (such as TTI 1, TTI 2, TTI 3, TTI 4, TTI 5 and TTI 6 which are shown in FIG. 3). Each TTI is 80 ms long and includes 8 radio frames (eg, radio frame 0 for radio frame 7 shown in FIG. 3). For example, the SS burst period in TTI 1 is 5 ms, the SS burst period in TTI 2 is 10 ms, the SS burst period in TTI 3 is 20 ms, the SS burst period in TTI 4 is 40 ms, the burst period is The SS in TTI 5 is 80 ms, and the burst period of the SS in TTI 6 is 160 ms.

[0083] It should be understood that each of TTI 1, TTI 2, TTI 3, TTI 4, TTI 5, and TTI 6 in this embodiment of the present application is a PBCH TTI. The base station transmits the SFN in each TTI using a different set of SS packets using the PBCH. The TTI sequence number is only used to distinguish the TTI in which the SFN is transmitted in different SS packet set periods. The sequence from TTI 1 to TTI 6 is not limited in this embodiment of the present application.

[0084] It should be understood that when each TTI includes 8 radio system frames, in each TTI, a radio system frame whose system frame number n _f corresponds to n _f mod 8=0 is used as the initial radio frame of the SS packet set period in TSI .

[0085] A method for transmitting SFNs at different SS packet set periods using PBCH is described in detail below.

[0086] (1) In TTI 2, the SS packet set period is 10 ms, and the base station separately transmits the system frame number of the radio system frame in radio frames 0 to 7 by sending PBCH.

[0087] For example, the system frame number of radio frame 0 is 0000000000, the system frame number of radio frame 1 is 0000000001, the system frame number of radio frame 2 is 0000000010, the system frame number of radio frame 3 is 0000000011, the system frame number of radio frame 4 is 000000 the system frame number of radio frame 5 is 0000000101, the system frame number of radio frame 6 is 0000000110, and the system frame number of radio frame 7 is 0000000111.

[0088] The lower 1 bit is the same as 0, and the upper 7 bits are also the same among the system frame numbers of radio frame 0, radio frame 2, radio frame 4, and radio frame 6. Therefore, the base station transmits the remaining bits (lower 1 bit and upper 7 bits) of the system frame number using the first MIB to ensure that the same first MIB is transmitted in every frame of the radio system. The first processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0089] The least significant bit is the same as 1, and the most significant 7 bits are also the same among the system frame numbers of radio frame 1, radio frame 3, radio frame 5, and radio frame 7. Therefore, the base station transmits the remaining bits (lower bit and upper 7 bits) of the system frame number using the second MIB to ensure that the same second MIB is transmitted in every frame of the radio system. The first processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0090] In an optional embodiment, the base station may separately process the first MIB with different processing methods to obtain a transport block (such as transport block 0, transport block 2, transport block 4, or transport block 6 in FIG. 3) corresponding to each processing method. . The first MIB includes the remaining bits (the remaining bits are the most significant 7 bits and the least significant bit, and the least significant bit is 0) of the system frame number. The processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0091] In an optional embodiment, the base station may separately process the second MIB with different processing methods to obtain a transport block (such as transport block 1, transport block 3, transport block 5, or transport block 7 in FIG. 3) corresponding to each processing method. The second MIB includes the remaining bits (the remaining bits are the most significant 7 bits and the least significant bit, and the least significant bit is 1) of the system frame number. The processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0092] In particular, based on the least significant bit that is transmitted using the first MIB, the system frame number, the least significant bit that is transmitted using the second MIB, the system frame number, and the 2nd and 3rd least significant bits of the system frame number, which implicitly indicated in the first processing method, the base station can determine the low 3 bits of the system frame number of the radio system frame and the mapping relationship between the low 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0093] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; the least significant 3 bits of the system frame number of frame 1 of the radio system are 001 and correspond to transport block 1; the least significant 3 bits of the system frame number of frame 2 of the radio system are 010 and correspond to transport block 2; the least significant 3 bits of the system frame number of frame 3 of the radio system are 011 and correspond to transport block 3; the least significant 3 bits of the system frame number of frame 4 of the radio system are 100 and correspond to transport block 4; the least significant 3 bits of the system frame number of frame 5 of the radio system are 101 and correspond to transport block 5; the least significant 3 bits of the system frame number of frame 6 of the radio system are 110 and correspond to transport block 6; and the least significant 3 bits of the system frame number of frame 7 of the radio system are 111 and correspond to transport block 7.

[0094] Therefore, the base station sends transport block 0 in radio frame 0 using PBCH, transport block 1 in radio frame 1 using PBCH, transport block 2 in radio frame 2 using PBCH, transport block 3 in radio frame 3 using PBCH , transport block 4 in PBCH radio frame 4, transport block 5 in PBCH radio frame 5, transport block 6 in PBCH radio frame 6, and transport block 7 in PBCH radio frame 7.

[0095] (2) In TTI 3, the SS burst period is 20 ms, and the base station separately transmits SFN in radio system frame 0, radio system frame 2, radio system frame 4, and radio system frame 6 using PBCH.

[0096] In particular, based on the least significant bit that is transmitted using the first MIB, the system frame number, and the 2nd and 3rd least significant bits of the system frame number, which are implicitly indicated in various ways included in the first processing method, the base station can determine the low 3 bits of the system frame number of the radio system frame and the mapping relationship between the low 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0097] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; the least significant 3 bits of the system frame number of frame 2 of the radio system are 010 and correspond to transport block 2; the least significant 3 bits of the system frame number of frame 4 of the radio system are 100 and correspond to transport block 4; and the least significant 3 bits of the system frame number of frame 6 of the radio system are 110 and correspond to transport block 6.

[0098] Therefore, the base station sends transport block 0 in radio frame 0 using PBCH, transport block 2 in radio frame 2 using PBCH, transport block 4 in radio frame 4 using PBCH, and transport block 6 in radio frame 6 using PBCH .

[0099] It should be understood that when the SS burst period is 20 ms, the method for transmitting the SFN in radio frame 0, radio system frame 2, radio system frame 4, and radio system frame 6 using PBCH is the same as the method for transmitting SFN in radio system frame 0, radio frame 2, radio frame 4, and radio frame 6 using PBCH when the SS burst period is 10 ms.

[0100] It is assumed that in TTI 2, the packet set period SS is the first period (eg, 10 ms). If the system frame number of the radio system frame in which the first PBCH is located is 0011010 00 1 (more specifically, radio system frame 1 in TTI 2), the base station processes the first MIB in the first processing method to obtain the first transport block. The first processing method is used to indicate the 2nd and 3rd least significant bits (eg, underlined two bits) of the system frame number of the radio system frame in which the first PBCH is located. The first MIB includes 00110101 (most significant 7 bits and least significant bit) of the system frame number of the radio system frame in which the first PBCH is located.

[0101] In TTI 3, the SS Packet Set Period is assumed to be the second period (eg, 20 ms). If the system frame number of the radio system frame in which the second PBCH is located is 0110110 00 1 (specifically, radio system frame 1 in TTI 3), the base station processes the second MIB with a second processing method to obtain a second transport block. The second processing method is used to indicate the 2nd and 3rd least significant bits (eg, underlined two bits) of the system frame number of the radio system frame in which the second PBCH is located. The second MIB includes 01101101 (most 7 bits and least significant bit) of the system frame number of the radio system frame in which the second PBCH is located. If the system frame number of the radio frame in which the second PBCH is located is 0110110 01 0 (specifically, radio frame 2 in TTI 3), the base station processes the second MIB with a second processing method to obtain a second transport block. The second processing method is used to indicate the 2nd and 3rd least significant bits (eg, underlined two bits) of the system frame number of the radio system frame in which the second PBCH is located. The second MIB includes 01101100 (the most significant 7 bits and the least significant bit) of the system frame number of the radio system frame in which the second PBCH is located.

[0102] Therefore, regardless of whether the system frame numbers transmitted using the PBCH in different periods are the same or different, the base station can transmit the SFN using the PBCH using a uniform method. Therefore, the complexity of the base station and the UE can be reduced.

[0103] (3) In TTI 4, the SS burst period is 40 ms, and the base station separately transmits SFN in radio frame 0 and radio frame 4 using PBCH.

[0104] In particular, based on the least significant bit that is transmitted using the first MIB, the system frame number, and the 2nd and 3rd least significant bits of the system frame number, which are implicitly indicated in different ways included in the first processing method, the base station can determine the low 3 bits of the system frame number of the radio system frame and the mapping relationship between the low 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0105] For example, the lower 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; and the least significant 3 bits of the system frame number of frame 4 of the radio system are 100, and correspond to transport block 4.

[0106] Thus, the base station sends transport block 0 in radio frame 0 using PBCH, and transport block 4 in radio frame 4 using PBCH.

[0107] It should be understood that the method of transmitting SFN in radio system frame 0 and radio system frame 4 using PBCH when the SS packet set period is 40 ms is the same as the method of transmitting SFN in radio system frame 0 and radio system frame 4 using PBCH, when the SS packet set period is 10 ms. To avoid repetition, the details are again not described here.

[0108] (4) In TTI 5, the burst period of the SS is 80 ms, and the base station transmits the SFN in frame 0 of the radio system using the PBCH.

[0109] In particular, based on the least significant bit that is transmitted using the first MIB, the system frame number, and the 2nd and 3rd least significant bits of the system frame number, which are implicitly indicated in different ways included in the first processing method, the base station can determine the low 3 bits of the system frame number of the radio system frame and the mapping relationship between the low 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0110] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0. The base station sends transport block 0 in frame 0 of the radio system using PBCH.

[0111] (5) In TTI 6, the burst period of the SS is 160 ms, and the base station transmits the SFN in frame 0 of the radio system using the PBCH, and the next SFN, using the PBCH, to another subsequent TTI that is separated from the TTI 6 by another TTI.

[0112] In particular, based on the least significant bit that is transmitted using the first MIB, the system frame number, and the 2nd and 3rd least significant bits of the system frame number, which are implicitly indicated in different ways included in the first processing method, the base station can determine the low 3 bits of the system frame number of the radio system frame and the mapping relationship between the low 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0113] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0. The base station sends transport block 0 in frame 0 of the radio system using PBCH.

[0114] It should be understood that the method of transmitting SFN in frame 0 of the radio system using PBCH when the burst period of SS is 160 ms is the same as the method of transmitting SFN in frame 0 of the radio system using PBCH when the burst period of SS is 10 ms . To avoid repetition, the details are again not described here.

[0115] (6) In TTI 1, the SS burst period is 5 ms, and the base station transmits SFN in radio system frames 0 to 7 using PBCH, and transmits two SS blocks in each radio frame. More specifically, two SS blocks are respectively transmitted in the first half frame and the second half frame. Both SS units transmitted in the first half frame and the second half frame may include a PBCH, or only one SS unit includes a PBCH. Since both the first half-frame and the second half-frame are located in the same frame of the radio system, the SFN in the SS block transmitted in the first half-frame is the same as the SFN in the SS block transmitted in the second half-frame.

[0116] It should be understood that the method of transmitting SFN in radio system frames 0 to 7 using PBCH when the SS packet set period is 5 ms is the same as the method of transmitting SFN in radio system frames 0 to 7 using PBCH when the period packet set SS is 10 ms. To avoid repetition, the details are again not described here.

[0117] It should be understood that the base station can configure a plurality of SS burst periods. In other words, different SS burst periods are used in different TTIs. The plurality of SS burst periods may be, for example, two or more SS burst periods of 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, and 160 ms. This is not limited in this embodiment of the present application.

[0118] In the communication method provided in this embodiment of the present application, in two or more different SS packet set periods, the base station does not require an appropriate SFN transmission method in each SS packet set period, but transmits the upper 7 bits and the lower bit of the system number. frame using the first MIB, and the first processing method used to process the first MIB implicitly indicates the 2nd and 3rd least significant bits of the system frame number. Therefore, the computational complexity of the base station and the UE can be reduced, and the complexity of SFN detection by the UE is reduced.

[0119] Optionally, the first processing method may indicate some bit positions and bits in some bit positions.

[0120] In an optional embodiment, as shown in FIG. 3, in TTI 2, the SS burst period is 10 ms, and the base station separately transmits the system frame number of the radio system frame in radio frames 0 to 7 by sending PBCH.

[0121] For example, the system frame number of radio frame 0 is 0000000000, the system frame number of radio frame 1 is 0000000001, the system frame number of radio frame 2 is 0000000010, the system frame number of radio frame 3 is -0000000011, the system frame number of radio frame 4 is 000.00 the system frame number of radio frame 5 is 0000000101, the system frame number of radio frame 6 is 0000000110, and the system frame number of radio frame 7 is 0000000111.

[0122] The least significant bit is the same as 0, and the most significant 7 bits are also the same among the system frame numbers of radio frame 0, radio frame 2, radio frame 4, and radio frame 6. Therefore, the base station transmits the remaining bits (least significant bit and most significant 7 bits) of the system frame number using the first MIB to ensure that the same first MIB is transmitted in every frame of the radio system. The first processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0123] The least significant bit is the same as 1, and the most significant 7 bits are also the same among the system frame numbers of radio frame 1, radio frame 3, radio frame 5, and radio frame 7. Therefore, the base station transmits the remaining bits (lower bit and upper 7 bits) of the system frame number using the second MIB to ensure that the same second MIB is transmitted in every frame of the radio system. The first processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0124] In an optional embodiment, the base station may separately process the first MIB 4 with different processing methods to obtain a transport block (such as transport block 0, transport block 2, transport block 4, or transport block 6 in FIG. 3) corresponding to each method. processing. The first MIB carries the remaining bits (the remaining bits are the most significant 7 bits and the least significant bit, and the least significant bit is 0) of the system frame number. The processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0125] For example, some bits implicitly indicated by processing method 0 used by transport block 0 are 00, some bits implicitly indicated by processing method 2 used by transport block 2 are 01, some bits implicitly indicated by processing method 4 used by transport block 4 is equal to 10, and some bits implicitly indicated by the processing method 6 used by transport block 6 are equal to 11.

[0126] In an optional embodiment, the base station may separately process the second MIB 4 with different processing methods to obtain a transport block (such as transport block 1, transport block 3, transport block 5, or transport block 7 in FIG. 3) corresponding to each processing method. . The second MIB carries the remaining bits (the remaining bits are the most significant 7 bits and the least significant bit, and the least significant bit is 1) of the system frame number. The processing method is used to implicitly specify some bits (2nd and 3rd least significant bits) of the system frame number.

[0127] For example, some bits implicitly indicated in processing method 1 used by transport block 1 are 00, some bits implicitly indicated in processing method 3 used by transport block 3 are 01, some bits implicitly indicated in processing method 5, used transport block 5 is 10, and some bits implicitly indicated by the processing method 7 used by transport block 7 are 11.

[0128] Optionally, since both the processing methods used by transport block 0 and transport block 1 implicitly indicate that some bits of the system frame numbers are 00, the processing method 0 used by transport block 0 may be the same as the processing method 1 is used by transport block 1. Similarly, processing method 2 used by transport block 2 may be the same as processing method 3 used by transport block 3, processing method 4 used by transport block 4 may be the same as processing method 5, the transport block 5 used and the processing method 6 used by the transport block 6 may be the same as the processing method 7 used by the transport block 7.

[0129] For example, when the first processing method is scrambling, the base station may scramble the first MIB with scrambling method 1 to obtain transport block 0, and scramble the second MIB with scrambling method 1 to obtain transport block 1, where scrambling method 1 is used to implicitly indicate that some bits are 00; the base station may scramble the first MIB with scrambling method 2 to obtain transport block 2, and scramble the second MIB with scrambling method 2 to obtain transport block 3, where scrambling method 3 is used to implicitly indicate that some bits are 01; the base station may scramble the first MIB with scrambling method 3 to obtain transport block 4, and scramble the second MIB with scrambling method 3 to obtain transport block 5, where scrambling method 3 is used to implicitly indicate that some bits are 10; and the base station may scramble the first MIB with scramble method 4 to obtain transport block 6, and scramble the second MIB with scramble method 4 to obtain transport block 7, where scramble method 4 is used to implicitly indicate that some bits are 11.

[0130] Thus, the base station processes the first MIB with 4 processing methods to obtain transport block 0, transport block 2, transport block 4, and transport block 6, and processes the second MIB with the same 4 processing methods. To obtain transport block 1, transport block 3, transport block 5, and transport block 7. Therefore, the computational complexity of the base station is reduced.

[0131] Accordingly, the UE must perform blind detection on the received transport block with only 4 scrambling methods. If the transport block is found to be using processing method 0, it may be determined that some bits are 00. If it is found that the transport block is using processing method 2, it may be determined that some bits are 01. If it is found that the transport block is using processing method 4 , it may be determined that some bits are 10. If it is detected that the transport block uses the processing method 6, it may be determined that some bits are 11. Therefore, the UE detection difficulty is reduced.

[0132] Specifically, based on the least significant bit that is transmitted using the first MIB, the system frame number, the low byte that is transmitted using the second MIB, the system frame number, and the 2nd and 3rd least significant bits of the system frame number, which implicitly indicated in the first processing method, the base station can determine the low 3 bits of the system frame number of the radio system frame and the mapping relationship between the low 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0133] For example, the lower 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; the least significant 3 bits of the system frame number of frame 1 of the radio system are 001 and correspond to transport block 1; the least significant 3 bits of the system frame number of frame 2 of the radio system are 010 and correspond to transport block 2; the least significant 3 bits of the system frame number of frame 3 of the radio system are 011 and correspond to transport block 3; the least significant 3 bits of the system frame number of frame 4 of the radio system are 100 and correspond to transport block 4; the least significant 3 bits of the system frame number of frame 5 of the radio system are 101 and correspond to transport block 5; the least significant 3 bits of the system frame number of frame 6 of the radio system are 110 and correspond to transport block 6; and the least significant 3 bits of the system frame number of frame 7 of the radio system are 111, and correspond to transport block 7.

[0134] Thus, the base station sends transport block 0 in radio system frame 0 using PBCH, transport block 1 in radio system frame 1 using PBCH, transport block 2 in radio system frame 2 using PBCH, transport block 3 in radio system frame 3 using using PBCH, transport block 4 in radio frame 4 using PBCH, transport block 5 in radio frame 5 using PBCH, transport block 6 in radio frame 6 using PBCH, and transport block 7 in radio frame 7 using PBCH.

[0135] Optionally, some bits in this embodiment of the present application may be the least significant 3 bits. When the length of the system frame number of the radio system frame is 10 bits, the base station may process the first MIB in the first processing method to obtain the first transport block. The first processing method is used to implicitly indicate some bits (more specifically, the least significant 3 bits) of the system frame number of the radio system frame. The first MIB includes the remaining bits (more specifically, the upper 7 bits) other than some bits of the system frame number of the radio system frame.

[0136] Accordingly, the upper 7 bits (for example, the upper 7 bits of the SFN) of the system frame number of the radio system frame are indicated by the UE on the PBCH, and the lower 3 bits (for example, the lower 3 bits of the SFN) of the system frame number of the radio system frame are implicitly indicated in the UE by decoding the first PBCH processing method.

[0137] For convenience of description, in this embodiment of the present application, bits in some bit positions are collectively called some bits, and bits other than some bits of the system frame number are collectively called the remaining bit.

[0138] The method of transmitting SFN by the base station in the same processing method (lower 3 bits of the system frame number is implicitly indicated in the first processing method) in different SS packet set periods using PBCH is described in detail with reference to FIG. four.

[0139] FIG. 4 shows 6 PBCH TTIs (eg, TTI 1, TTI 2, TTI 3, TTI 4, TTI 5, and TTI 6 which are shown in FIG. 4). Each TTI is 80 ms long, and includes 8 radio frames (eg, radio frame 0 to radio frame 7, as shown in FIG. 4). For example, the SS burst period in TTI 1 is 5 ms, the SS burst period in TTI 2 is 10 ms, the SS burst period in TTI 3 is 20 ms, the SS burst period in TTI 4 is 40 ms, the SS burst period is in TTI 5 is 80 ms, and the burst period SS in TTI 6 is 160 ms.

[0140] It should be understood that each of TTI 1, TTI 2, TTI 3, TTI 4, TTI 5, and TTI 6 in this embodiment of the present application is a TTI of any PBCH. The base station transmits the SFN in each TTI using a different set of SS packets using the PBCH. The TTI sequence number is only used to distinguish the TTI in which the SFN is transmitted in different SS packet set periods. The sequence of TTI 1 to TTI 6 is not limited in this embodiment of the present application.

[0141] It should be understood that when each TTI includes 8 radio system frames, in each TTI, the radio system frame whose system frame number n _f corresponds to n _f mod 8=0 is used as the initial radio system frame the SS packet set period in TTI.

[0142] The method for transmitting SFNs at different SS packet set periods using PBCH is described in detail below.

[0143] (1) In TTI 2, the SS burst period is 10 ms, and the base station separately transmits the system frame number of the radio system frame in radio frames 0 to 7 by sending PBCH.

[0144] For example, the system frame number of radio system frame 0 is 0000000000, the system frame number of radio system frame 1 is 0000000001, the system frame number of radio system frame 2 is 0000000010, the system frame number of radio system frame 3 is 0000000011, the system frame number of radio system frame 4 is 00000, the system frame number is 500100 radio system frame number 0000000101, radio frame 6 system frame number 0000000110, and radio frame 7 system frame number 0000000111.

[0145] In the system frame numbers from radio system frame 0 to radio system frame 7, the upper 7 bits are the same. Thus, the base station transmits the remaining bits (most significant 7 bits) of the system frame number using the first MIB to ensure that the same first MIB is transmitted in every frame of the radio system. The first processing method is used to implicitly specify some bits (lower 3 bits) of the system frame number.

[0146] In an optional embodiment, the base station may separately process the first MIB in 8 different processing methods to obtain a transport block (eg, transport block 0 to transport block 7 in FIG. 4) corresponding to each processing method. The first MIB includes the remaining bits (most significant 7 bits) of the system frame number. The processing method is used to implicitly specify some bits (lower 3 bits) of the system frame number.

[0147] In particular, based on the lower 3 bits of the system frame number that are implicitly indicated in the first processing method, the base station can determine the mapping relationship between the lower 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0148] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; the least significant 3 bits of the system frame number of frame 1 of the radio system are 001 and correspond to transport block 1; the least significant 3 bits of the system frame number of frame 2 of the radio system are 010 and correspond to transport block 2; the least significant 3 bits of the system frame number of frame 3 of the radio system are 011 and correspond to transport block 3; the least significant 3 bits of the system frame number of frame 4 of the radio system are 100 and correspond to transport block 4; the least significant 3 bits of the system frame number of frame 5 of the radio system are 101 and correspond to transport block 5; the least significant 3 bits of the system frame number of frame 6 of the radio system are 110, and correspond to transport block 6; and the least significant 3 bits of the system frame number of frame 7 of the radio system are 111, and correspond to transport block 0.

[0149] Thus, the base station sends transport block 0 in radio system frame 0 using PBCH, transport block 1 in radio system frame 1 using PBCH, transport block 2 in radio system frame 2 using PBCH, transport block 3 in radio system frame 3 using using PBCH, transport block 4 in radio frame 4 using PBCH, transport block 5 in radio frame 5 using PBCH, transport block 6 in radio frame 6 using PBCH, and transport block 7 in radio frame 7 using PBCH.

[0150] In the communication method presented in this embodiment of the present application, the lower 3 bits of the frame system number are implicitly indicated in the first processing method. Thus, the amount of data to be transmitted can be reduced and the transmission efficiency is improved.

[0151] (2) In TTI 3, the SS burst period is 20 ms, and the base station separately transmits the SFN in radio system frame 0, radio system frame 2, radio system frame 4, and radio system frame 6 using PBCH.

[0152] In particular, based on the lower 3 bits of the system frame number that are implicitly indicated in the first processing method, the base station can determine the mapping relationship between the lower 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0153] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; the least significant 3 bits of the system frame number of frame 2 of the radio system 010 and correspond to transport block 2; the least significant 3 bits of the system frame number of frame 4 of the radio system are 100 and correspond to transport block 4; and the least significant 3 bits of the system frame number of frame 6 of the radio system are 110, and correspond to transport block 6.

[0154] Thus, the base station sends transport block 0 in radio frame 0 using PBCH, transport block 2 in radio frame 2 using PBCH, transport block 4 in radio frame 4 using PBCH, and transport block 6 in radio frame 6 using PBCH.

[0155] It should be understood that the method of transmitting SFN in radio system frame 0, radio frame 2, radio system frame 4, and radio system frame 6 using PBCH when the SS packet set period is 20 ms is the same as the method of transmitting SFN in radio system frame 0 , radio frame 2, radio frame 4, and radio frame 6 using the PBCH when the SS packet set period is 10 ms.

[0156] It is assumed that in TTI 2, the SS packet set period is the first period (eg, 10 ms). If the system frame number of the radio system frame in which the first PBCH is located is 0011010 001 (more specifically, radio system frame 1 in TTI 2), the base station processes the first MIB with the first processing method to obtain the first transport block. The first processing method is used to indicate the least significant 3 bits (eg, underlined 3 bits) of the system frame number of the radio system frame in which the first PBCH is located. The first MIB includes 0011010 (most significant 7 bits) of the system frame number of the radio system frame in which the first PBCH is located.

[0157] It is assumed that in TTI 3, the packet set period SS is the second period (eg, 20 ms). If the system frame number of the radio system frame in which the second PBCH is located is 0110110 001 (more specifically, radio system frame 1 in TTI 3), the base station processes the second MIB with a second processing method to obtain a second transport block. The second processing method is used to indicate the least significant 3 bits (eg, underlined 3 bits) of the system frame number of the radio system frame in which the second PBCH is located. The second MIB includes 0110110 (most significant 7 bits) of the system frame number of the radio system frame in which the second PBCH is located. If the system frame number of the radio frame in which the second PBCH is located is 0110110 010 (more specifically, radio frame 2 in TTI 3), then the base station processes the second MIB in the second processing method to obtain a second transport block. The second processing method is used to indicate the least significant 3 bits (eg, underlined 3 bits) of the system frame number of the radio system frame in which the second PBCH is located. The second MIB includes 0110110 (most significant 7 bits) of the system frame number of the radio system frame in which the second PBCH is located.

[0158] Therefore, regardless of whether the system frame numbers transmitted using the PBCH in different periods are the same or different, the base station can transmit a plurality of SFNs using the PBCH using a uniform method. Thus, the complexity of the base station and the UE can be reduced.

[0159] (3) In TTI 4, the burst period of the SS is 40 ms, and the base station separately transmits SFN in radio frame 0 and radio frame 4 using PBCH.

[0160] In particular, based on the lower 3 bits of the system frame number that are implicitly indicated in the first processing method, the base station can determine the mapping relationship between the lower 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0161] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0; and the least significant 3 bits of the system frame number of frame 4 of the radio system are 100, and correspond to transport block 4.

[0162] Thus, the base station sends transport block 0 in radio frame 0 using PBCH, and transport block 4 in radio frame 4 using PBCH.

[0163] It should be understood that the method of transmitting SFN in radio system frame 0 and radio system frame 4 using PBCH when the SS packet set period is 40 ms is the same as the method of transmitting SFN in radio system frame 0 and radio system frame 4 using PBCH, when the SS packet set period is 10 ms. To avoid repetition, the details are again not described here.

[0164] (4) In TTI 5, the burst period of the SS is 80 ms, and the base station transmits the SFN in frame 0 of the radio system using the PBCH.

[0165] In particular, based on the lower 3 bits of the system frame number that are implicitly indicated in the first processing method, the base station can determine the mapping relationship between the lower 3 bits of the system frame number of the radio system frame and the transport block sent in the radio system frame.

[0166] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0. The base station sends transport block 0 in frame 0 of the radio system using PBCH.

[0167] It should be understood that the method of transmitting SFN in frame 0 of the radio system using PBCH when the burst period of SS is 80 ms is the same as the method of transmitting SFN in frame 0 of the radio system using PBCH when the burst period of SS is 10 ms . To avoid repetition, the details are again not described here.

[0168] (5) In TTI 6, the SS burst period is 160 ms, and the base station transmits the SFN in frame 0 of the radio system using the PBCH, and the next SFN using the PBCH, to another subsequent TTI that is separated from TTI 6 by another TTI.

[0169] In particular, the base station may process the first MIB with the first processing method to obtain the first transport block. The first processing method implicitly points to the PBCH.

[0170] For example, the least significant 3 bits of the system frame number of frame 0 of the radio system are 000 and correspond to transport block 0. The base station sends transport block 0 in frame 0 of the radio system using PBCH.

[0171] It should be understood that the method of transmitting SFN in frame 0 of the radio system using PBCH when the burst period of SS is 160 ms is the same as the method of transmitting SFN in frame 0 of the radio system using PBCH when the burst period of SS is 10 ms . To avoid repetition, the details are again not described here.

[0172] (6) In TTI 1, the SS packet set period is 5 ms, and the base station transmits SFN in radio system frames 0 to 7 using PBCH, and transmits SS blocks in each radio system frame. More specifically, SS blocks are transmitted in the first half-frame and the second half-frame, respectively. Both SS blocks are transmitted in the first half frame and the SS block transmitted in the second half frame may include a PBCH, or only one SS block includes a PBCH. Since both the first half-frame and the second half-frame are located in the same frame of the radio system, the SFN in the SS block transmitted in the first half-frame is the same as the SFN in the SS block transmitted in the second half-frame.

[0173] It should be understood that the transmission method of SFN in radio system frames 0 to 7 using PBCH when the SS packet set period is 5ms is the same as the transmission method in radio system frames 0 to 7 using PBCH when the set period of SS packets is SS packets is 10 ms. To avoid repetition, the details are again not described here.

[0174] In the communication method provided in this embodiment of the present application, in two or more different SS Packet Set periods, the base station does not require an appropriate SFN transmission method in each SS Packet Set period, but transmits the upper 7 bits of the system frame number using the first MIB, and the first processing method used to process the first MIB implicitly points to the lower 3 bits of the system frame number. Thus, the computational complexity of the base station and the UE can be reduced, and the complexity of SFN detection by the UE is reduced.

[0175] Optionally, when the period of the SS packet set is equal to half the length of the frame of the radio system in which the SS packet set is located, the base station should send two SS blocks in one radio frame, more specifically, send one SS block in the first half frame and / or one block SS in the second half-frame. Therefore, the base station must indicate the half-frame information of the SS block to the UE. The half frame information is used to indicate that the SS block is sent in the first half frame or in the second half frame.

[0176] Optionally, the base station may indicate half-frame information in a variety of ways. This is not limited in this embodiment of the present application.

[0177] In an optional embodiment, the base station may add 1-bit indication information to the transport block obtained by processing the first MIB in the first processing method to indicate half-frame information.

[0178] For example, the bit value of 1 bit is 0, and the SS block is accordingly sent in the first half frame. The bit value of 1 bit is 1, and the SS block is accordingly sent in the second half-frame.

[0179] In an optional embodiment, the base station may indicate the half-frame information using different demodulation reference signal (DMRS) sequences, or indicate the half-frame information using different frequency offsets of the DMRS sequences.

[0180] For example, the base station and the UE may agree in advance to indicate, using the first DMRS sequence, that the SS block is sent in the first half frame, and indicate, using the second DMRS sequence, that the SS block is sent in the second half frame.

[0181] In another example, the base station and the UE may agree in advance to indicate, using the first frequency offset of the first DMRS sequence, that the SS block is sent in the first half frame, and indicate, using the second frequency offset of the first DMRS sequence, that the SS block is sent in the second half frame.

[0182] Optionally, the UE and the base station may negotiate, according to the protocol, the correspondence between the half-frame information and the DMRS sequence and/or the frequency offset of the DMRS sequence. In addition, the base station may indicate the correspondence between the half-frame information and the DMRS sequence and/or the frequency offset of the DMRS sequence with the UE using higher layer signaling. This is not limited in this embodiment of the present application.

[0183] In an optional embodiment, the base station may indicate half-frame information using the positions of the first symbol and the second symbol occupied by the PBCH that is included in the SS block.

[0184] In an optional embodiment, the base station may indicate half-frame information using the content included in the SS block.

[0185] For example, the base station and the UE may agree in advance on an indication, based on whether the SS block includes a PBCH, whether the SS block is sent in the first half frame or the second half frame.

[0186] In an optional embodiment, the base station may use a reserved bit in the first MIB to indicate half-frame information. In addition, the base station may reuse a bit in the first MIB to indicate half-frame information. For example, the base station may reuse the bit used to indicate the SS block in the first MIB or the bit used to indicate the SS packet set period in the first MIB. This is not limited in this embodiment of the present application.

[0187] In the communication method presented in this embodiment of the present application, the base station indicates the half-frame information of the SS block in a plurality of different ways, so that the UE can obtain the system frame number in finer detail.

[0188] Optionally, in each SS packet set period, the base station may send an SS packet in only one radio frame, and even in each half frame of the radio frame. For example, each PBCH shown in FIG. 5 and FIG. 4 can be included in one SS package.

[0189] It should also be understood that in each SS packet set period, the base station may send an SS packet in each radio frame, and even in each half frame of each radio frame. All SS packets in an SS packet set period form an SS packet set.

[0190] For example, FIG. 5 is a schematic diagram of each radio frame included in an SS burst set period including an SS burst. As shown in FIG. 5, the SS burst period in TTI 1 is 20 ms, and the SS burst set includes two SS bursts (in other words, a 1st SS burst and a 2nd SS burst). The 1st SS packet is sent in the first 10 ms radio frame in a 20 ms period, and the 2nd SS packet is sent in the second 10 ms radio frame in a 20 ms period. The SS packet set period in TTI 2 is 20 ms. The SS package set includes 4 SS packages (in other words, 1st SS package, 2nd SS package, 3rd SS package, and 4th SS package). The 1st SS packet is sent in the first half frame of the first 10 ms radio frame in the 20 ms period, the 2nd SS packet is sent in the second half frame of the first 10 ms radio frame in the 20 ms period, the 3rd SS packet is sent in the first half frame of the second 10 ms radio frame in the 20 ms period. period of 20 ms, and the 4th SS burst is sent in the second half-frame of the second 10 ms radio frame in the 20 ms period.

[0191] It should be understood that the system frame numbers transmitted in an SS packet in one radio frame are the same, and the method for transmitting an SFN using an SS packet in each frame of a radio system is similar to the methods for transmitting an SFN in each radio frame using a PBCH described in FIG. 2 to 4. To avoid repetition, details are not described here again.

[0192] FIG. 6 is a block diagram of a communication device 600 for data transmission in accordance with an embodiment of the present application. Communication device 600 includes:

a determining unit 610, configured to determine a system frame number of a radio system frame on which a first physical broadcast channel (PBCH) to be sent is located, where the first PBCH is included in the first set of synchronization signal packets (SS packet set), and the period of the first set of SS packets is one of many periods;

a processing unit 620, configured to process the first system information block (MIB) with the first processing method to obtain the first transport block, where the first processing method is used to indicate some bits of the system frame number, which is determined by the determination block 610, of the radio system frame in which the first PBCH is located, and the first MIB includes the remaining bits, other than some bits, of the system frame number of the radio system frame in which the first PBCH is located; as well as

a sender 630, configured to send, using the first PBCH in the frame of the radio system in which the first PBCH is located, the first transport block obtained by processing by the processor 620 .

[0193] Optionally, the first PBCH is sent in the first transmission time interval (TTI), the period of the first set of SS packets is the first period of the plurality of periods in the first TTI, and the determiner is further configured to determine the system frame number of the radio system frame in which the second is located. The PBCH to be sent in the second TTI, where the second PBCH is included in the second set of SS packets, and the period of the second set of SS packets is the second period of the plurality of periods. The processing unit is further configured to process the second MIB with the first processing method to obtain a second transport block, where the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the second PBCH is located, and the second MIB includes the remaining bits other than from some bits, the system frame number of the radio system frame in which the second PBCH is located. The sender is further configured to send, using the second PBCH, the second transport block in the radio frame in which the second PBCH is located.

[0194] Optionally, some bits include the 2nd and 3rd least significant bits.

[0195] Optionally, some bits include 3 least significant bits.

[0196] Optionally, the first processing method includes at least one of CRC, cyclic shift, and scrambling.

[0197] The present application provides a communication method and a communication apparatus such that an SFN can be transmitted in different SS burst periods using a PBCH.

[0198] In addition, in two or more different SS Packet Set periods, the base station does not require the corresponding SFN transmission method in each SS Packet Set period, but transmits the remaining bits of the system frame number using the first MIB, and the first processing method used for processing the first MIB, implicitly specifies some bits of the system frame number. Therefore, the computational complexity of the base station and the UE can be reduced, and the complexity of SFN detection by the UE is reduced.

[0199] In an optional example, a person skilled in the art can understand that the communication device 600, in particular, can be a network device in the above embodiment of the method. The communication device 600 may be configured to perform procedures and/or steps corresponding to the network device in the above method embodiment. To avoid repetition, the details are again not described here.

[0200] It should be understood that the communication device 600 herein may be in the form of a functional block. The term "unit" in this document may represent an ASIC, an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor) and memory that are used to execute one or more programs or firmware, a combined logic circuit, and/or other a suitable component that supports the described function.

[0201] FIG. 7 is a block diagram of another communication device 700 for data transmission in accordance with an embodiment of the present application. Communication device 700 includes:

an acquisition unit 710, configured to receive a transport block sent by the network device using a physical broadcast channel (PBCH), where the PBCH is included in a synchronization signal packet set (SS packet set), and the SS packet set period is one of the plurality of periods;

a processing unit 720, configured to process the transport block received by the acquisition unit 710 by the first processing method to obtain a system information block (MIB); and obtaining, by a processing method, some bit positions of the system frame number of the radio system frame in which the PBCH is located, and bits in some bit positions, where the MIB includes remaining bits other than some bits of the system frame number of the radio system frame in which the PBCH is located ; and

a determining unit 730, configured to determine, based on some bits obtained by processing by the processing unit 720 and the remaining bits, a system frame number of a radio system frame in which the PBCH is located.

[0202] Optionally, some bits include the 2nd and 3rd least significant bits.

[0203] Optionally, some bits include 3 least significant bits.

[0204] Optionally, the processing method includes at least one of CRC, cyclic shift, and descrambling.

[0205] The present application provides a communication method and a communication apparatus such that an SFN can be transmitted in different SS burst periods using a PBCH.

[0206] In addition, in two or more different SS Packet Set periods, the base station does not require the corresponding SFN transmission method in each SS Packet Set period, but transmits the remaining bits of the system frame number using the MIB, and the processing method used to process the MIB , implicitly specifies some bits of the system frame number. Therefore, the computational complexity of the base station and the UE can be reduced, and the complexity of SFN detection by the UE is reduced.

[0207] In an optional example, a person skilled in the art can understand that the communication device 700 may be, in particular, a UE in the above embodiment of the method. The communication device 700 may be configured to perform procedures and/or steps corresponding to the UE in the above method embodiment. To avoid repetition, the details are again not described here.

[0208] It should be understood that the communication device 700 herein may be in the form of a functional block. The term "unit" in this document may represent an ASIC, an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor) and memory that are used to execute one or more programs or firmware, a combined logic circuit, and/or other a suitable component that supports the described function.

[0209] FIG. 8 is a block diagram of yet another communication device 800 for data transmission according to an embodiment of the present application. The communication device 800 includes a processor 810, a transceiver 820, and a memory 830. The processor 810, the transceiver 820, and the memory 830 communicate with each other using an internal communication channel. The memory 830 is configured to store the instruction. The processor 810 is configured to execute an instruction stored in the memory 830 to control the transceiver 820 to send and/or receive a signal. Optionally, the processor and memory that are included in the device may be further implemented using chips.

[0210] The processor 810 is specifically configured to: determine the system frame number of the radio system frame in which the first broadcast PBCH to be sent is located, the first PBCH being included in the first set of synchronization signal packets (SS packet set) and the first period the first set of packets SS is one of the plurality of periods; processing the first system information block (MIB) by the first processing method to obtain the first transport block, wherein the first processing method is used to indicate some bits of the system frame number of the radio system frame in which the first PBCH is located, and the first MIB includes the remaining bits other than some bits, the system frame number of the radio system frame in which the first PBCH is located; and controlling the transceiver 820 to send, using the first PBCH, the first transport block in the frame of the radio system in which the first PBCH is located.

[0211] It should be understood that the communication device 800 may be specifically the network device in the above embodiment, and may be configured to perform the steps and/or procedures corresponding to the network device in the above method. Optionally, memory 820 may include read only memory and random access memory, and provide instruction and data to the processor. The memory portion may include non-volatile random access memory. For example, the memory may further store device type information. The processor 810 may be configured to execute an instruction stored in memory. When executing an instruction stored in memory, the processor 810 is configured to perform the steps and/or procedures corresponding to the network device in the above embodiment.

[0212] It should be understood that in this embodiment of the present application, the processor of the communication device may be a central processing unit (CPU). In addition, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable a logic device, a discrete circuit, or a transistorized logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.

[0213] FIG. 9 is a block diagram of another communication device 900 for data transmission in accordance with an embodiment of the present application. The communication device 900 includes a processor 910, a transceiver 920, and a memory 930. The processor 910, the transceiver 920, and the memory 930 communicate with each other using an internal communication channel. The memory 930 is configured to store the instruction. The processor 910 is configured to execute an instruction stored in the memory 930 to control the transceiver 920 to send and/or receive a signal.

[0214] Optionally, the processor and memory that are included in the device may be further implemented using chips.

[0215] The processor 910 is specifically configured to: control the transceiver 920 to receive a transport block sent by a network device using a physical broadcast channel (PBCH), wherein the PBCH is included in a synchronization signal packet set (SS packet set), and a period the SS packet set is one of the plurality of periods; processing the transport block by a processing method to obtain a system information block (MIB) and obtain, by the processing method, some bit positions of the system frame number of the radio system frame in which the PBCH is located, and bits in some bit positions (hereinafter referred to as some bits), wherein the MIB includes including the remaining bits, other than some bits, of the system frame number of the radio system frame in which the PBCH is located; and determining, based on some bits and the remaining bits, the system frame number of the radio system frame in which the PBCH is located.

[0216] It should be understood that the communication device 900 may be, in particular, the UE in the above embodiment, and may be configured to perform steps and/or procedures corresponding to the UE in the above method. Optionally, memory 930 may include read only memory and random access memory and provide instruction and data to the processor. The memory portion may further include a non-volatile random access memory. For example, the memory may additionally store device type information. The processor 910 may be configured to execute an instruction stored in memory. When executing an instruction stored in memory, the processor 910 is configured to perform steps and/or procedures corresponding to the UE in the above embodiment.

[0217] It should be understood that in this embodiment of the present application, the processor may be a central processing unit (CPU) or the processor may be another general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA ) or other programmable logic device, discrete circuit or transistorized logic device, discrete hardware component, or the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor or the like.

[0218] One skilled in the art may be aware that, in combination with the examples described in the embodiments disclosed in this specification, the blocks and steps of an algorithm may be implemented using electronic hardware or a combination of computer software and electronic hardware. The performance of functions by hardware or software depends on specific applications and conditions of design constraints of technical solutions. A person skilled in the art can use different methods to implement the described functions for each particular application, but such an implementation should not be considered outside the scope of this application.

[0219] A person skilled in the art can clearly understand that, for simplicity and brevity, the descriptions for the detailed workflow of the above system, communication device, and unit refer to the corresponding process in the above method embodiments. The details are again not described here.

[0220] In several embodiments presented in this application, it should be understood that the disclosed system, communication device and method can be implemented in other ways. For example, the described embodiment of the communication device is merely an example. For example, the division into blocks is simply a logical division of functions and may be another division in the actual implementation. For example, many blocks or components may be combined or integrated into another system, or certain functions may be ignored or not performed. In addition, displayed or discussed reciprocal links or direct links or link connections can be implemented through some interfaces. Indirect connections or communication connections between devices or communication units can be implemented in electronic, mechanical or other forms.

[0221] Blocks described as separate parts may or may not be physically separated from each other, and parts displayed as blocks may or may not be physical blocks, may be located in the same position, or may be distributed over multiple networks. blocks. Some or all of the blocks may be selected according to actual requirements to achieve the goals of the solutions of the embodiments.

[0222] In addition, the functional blocks in the embodiments of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units are integrated into one unit.

[0223] When the functions are implemented in the form of a software functional block and sold or used as an independent product, the functions may be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of the present application as such, or a portion contributing to the prior art, or some of the technical solutions may be implemented in the form of a software product. The software product is stored on a storage medium and includes several instructions for instructing a computing device (which may be a personal computer, a server, a network device, or the like) to perform all or some of the steps of the described methods in embodiments of the present application. The above storage medium includes any medium that can store program code, such as a USB flash drive, a removable hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory) magnetic disk or optical disc.

[0224] The above descriptions are merely specific implementations of the present application, but are not intended to limit the scope of protection of the present application. Any change or substitution readily detectable by a person skilled in the art within the technical scope disclosed in this application should fall within the protection scope of this application. Therefore, the scope of the present application should be subject to the scope of the claims.

Claims (83)

1. A communication method, comprising the steps of: receiving a physical broadcast channel (PBCH) from the network device; and processing the transport block carried by the PBCH by descrambling to obtain information bits of the PBCH, wherein the descrambling is performed using one of the plurality of pseudo-random sequence segments, wherein said one of the plurality of pseudo-random sequence segments implicitly indicates the bit part of the system frame number of the radio system frame in which the PBCH is located , while said part of the bits includes only the 2nd and 3rd least significant bits of the system frame number; the length of the system frame number is 10 bits. 2. The communication method according to claim 1, wherein the information bits of the PBCH contain bits other than the 2nd and 3rd least significant bits of the system frame number of the radio system frame in which the PBCH is located. 3. The communication method of claim 1, wherein said one of the plurality of PN segments is one of four PR segments that correspond to the 2nd and 3rd least significant bits of the system frame number. 4. The communication method of claim 3, wherein said four PN segments are based on a single initialization seed to initialize the PN. 5. The communication method according to claim 3 or 4, wherein the four PN segments comprise a first PN segment, a second PN segment, a third PN segment, and a fourth PN segment, wherein: said 2nd and 3rd least significant bits implicitly indicated by the first segment of the pseudorandom sequence are equal to 00, mentioned 2nd and 3rd least significant bits implicitly indicated by the second segment of the pseudorandom sequence are equal to 01, mentioned 2nd and 3 The th least significant bits implicitly indicated by the third segment of the pseudorandom sequence are equal to 10 and the mentioned 2nd and 3rd least significant bits implicitly indicated by the fourth segment of the pseudorandom sequence are equal to 11. 6. Communication method according to any one of paragraphs. 1-5, in which The PBCH corresponding to the system frame number is received in the first half frame and/or the second half frame of the radio system frame. 7. Communication method according to claim 6, in which: the first half-frame or the second half-frame in which the PBCH is received is indicated using a demodulation reference signal sequence (DMRS). 8. Communication method according to claim 6 or 7, in which: the first half-frame or the second half-frame in which the PBCH is received is indicated by one bit in the information bits of the PBCH. 9. Communication method according to any one of paragraphs. 1-8, in which the PBCH is contained in a synchronization signal block. 10. Communication method according to any one of paragraphs. 1-9, in which the PBCH information bits include System Information Block (MIB) information bits. 11. The communication method of claim 1, wherein processing a transport block carried by the PBCH by descrambling to obtain PBCH information bits comprises: decoding the transport block carried by the PBCH to obtain the PBCH information bits and a cyclic redundancy code (CRC) bit. 12. Communication device, comprising: a transceiver configured to receive a physical broadcast channel (PBCH) from the network device; and a processor configured to process a transport block carried by the PBCH by descrambling to obtain information bits of the PBCH, wherein the descrambling is performed using one of a plurality of pseudo-random sequence segments, said one of the plurality of pseudo-random sequence segments implicitly indicating a bit part of the system frame number of the radio system frame , in which the PBCH is located, while said part of the bits includes only the 2nd and 3rd least significant bits of the system frame number; the length of the system frame number is 10 bits. 13. The apparatus of claim 12, wherein the information bits of the PBCH contain bits other than said 2nd and 3rd least significant bits of the system frame number of the radio system frame in which the PBCH is located. 14. The apparatus of claim 12, wherein said one of the plurality of PN segments is one of four PN segments that correspond to the 2nd and 3rd least significant bits of the system frame number. 15. The apparatus of claim 14, wherein the four segments of the pseudo-random sequence are based on a single initialization seed to initialize the pseudo-random sequence. 16. The apparatus of claim. 14 or 15, wherein the four segments of the pseudo-random sequence comprise a first segment of the pseudo-random sequence, a second segment of the pseudo-random sequence, a third segment of the pseudo-random sequence, and a fourth segment of the pseudo-random sequence, wherein: said 2nd and 3rd least significant bits implicitly indicated by the first segment of the pseudorandom sequence are equal to 00, mentioned 2nd and 3rd least significant bits implicitly indicated by the second segment of the pseudorandom sequence are equal to 01, mentioned 2nd and 3 The -th least significant bits implicitly indicated by the third segment of the pseudorandom sequence are equal to 10 and the mentioned 2nd and 3rd least significant bits implicitly indicated by the fourth segment of the pseudorandom sequence are equal to 11. 17. The device according to any one of paragraphs. 12-16, in which The PBCH corresponding to the system frame number is received in the first half frame and/or the second half frame of the radio system frame. 18. The device according to claim 17, in which: the first half-frame or the second half-frame in which the PBCH is received is indicated using a demodulation reference signal sequence (DMRS). 19. The device according to claim 17 or 18, in which: the first half-frame or the second half-frame in which the PBCH is received is indicated by one bit in the information bits of the PBCH. 20. The device according to any one of paragraphs. 12-19, in which the PBCH is contained in a synchronization signal block. 21. The device according to any one of paragraphs. 12-20, in which the PBCH information bits include System Information Block (MIB) information bits. 22. The communications apparatus of claim 12, wherein the processor is further configured to decode a transport block carried by the PBCH to obtain PBCH information bits and a cyclic redundancy code (CRC) bit. 23. A communication method, comprising the steps of: the information bits of the physical broadcast channel (PBCH) are scrambled using one of the plurality of pseudo-random sequence segments to obtain a transport block, wherein said one of the plurality of pseudo-random sequence segments implicitly indicates a part of the bits of the system frame number of the radio system frame in which the PBCH is located, while the mentioned part of the bits includes only the 2nd and 3rd least significant bits of the system frame number; and sending a transport block using the PBCH; the length of the system frame number is 10 bits. 24. The communication method of claim 23, wherein the information bits of the PBCH contain bits other than the 2nd and 3rd least significant bits of the system frame number of the radio system frame in which the PBCH is located. 25. The communication method according to claim 23 or 24, wherein said one of the plurality of PN segments is one of four PN segments that correspond to the 2nd and 3rd least significant bits of the system frame number. 26. The communication method of claim 25, wherein the four segments of the PN sequence are based on a single initialization seed to initialize the PN sequence. 27. The communication method according to claim 25 or 26, wherein the four PN segments comprise a first PN segment, a second PN segment, a third PN segment, and a fourth PN segment, wherein: said 2nd and 3rd least significant bits implicitly indicated by the first segment of the pseudorandom sequence are equal to 00, mentioned 2nd and 3rd least significant bits implicitly indicated by the second segment of the pseudorandom sequence are equal to 01, mentioned 2nd and 3 The -th least significant bits implicitly indicated by the third segment of the pseudorandom sequence are equal to 10 and the mentioned 2nd and 3rd least significant bits implicitly indicated by the fourth segment of the pseudorandom sequence are equal to 11. 28. Communication method according to any one of paragraphs. 23-27, in which The PBCH corresponding to the system frame number is sent in the first half frame and/or the second half frame of the radio system frame. 29. The communication method according to claim 28, in which: the first half-frame or the second half-frame in which the PBCH is sent is indicated using a demodulation reference signal sequence (DMRS). 30. The communication method according to claim 28 or 29, in which: the first half-frame or the second half-frame in which the PBCH is sent is indicated by one bit in the information bits of the PBCH. 31. Communication method according to any one of paragraphs. 23-30, in which the PBCH is contained in a sync block. 32. Communication method according to any one of paragraphs. 23-31, in which the PBCH information bits include System Information Block (MIB) information bits. 33. Communication device, containing: a processor configured to scramble the information bits of a physical broadcast channel (PBCH) using one of a plurality of pseudo-random sequence segments to obtain a transport block, wherein said one of the plurality of pseudo-random sequence segments implicitly indicates a part of the bits of the system frame number of the radio system frame in which the PBCH is located, wherein said part of the bits includes only the 2nd and 3rd least significant bits of the system frame number; and a transceiver configured to send a transport block using the PBCH; the length of the system frame number is 10 bits. 34. The communications apparatus of claim 33, wherein the information bits of the PBCH contain bits other than said 2nd and 3rd least significant bits of the system frame number of the radio system frame in which the PBCH is located. 35. The communications apparatus of claim 33 or 34, wherein said one of the plurality of PN segments is one of four PR segments that correspond to the 2nd and 3rd least significant bits of the system frame number. 36. The communications apparatus of claim 35, wherein said four segments of the PN sequence are based on a single initialization seed to initialize the PN sequence. 37. The communication device according to claim 35 or 36, wherein said four segments of the pseudo-random sequence comprise a first segment of the pseudo-random sequence, a second segment of the pseudo-random sequence, a third segment of the pseudo-random sequence, and a fourth segment of the pseudo-random sequence, and: said 2nd and 3rd least significant bits implicitly indicated by the first segment of the pseudorandom sequence are equal to 00, mentioned 2nd and 3rd least significant bits implicitly indicated by the second segment of the pseudorandom sequence are equal to 01, mentioned 2nd and 3 The -th least significant bits implicitly indicated by the third segment of the pseudorandom sequence are equal to 10 and the mentioned 2nd and 3rd least significant bits implicitly indicated by the fourth segment of the pseudorandom sequence are equal to 11. 38. Communication device according to any one of paragraphs. 33-37, in which The PBCH corresponding to the system frame number is sent in the first half frame and/or the second half frame of the radio system frame. 39. Communication device according to claim 38, in which: the first half-frame or the second half-frame in which the PBCH is sent is indicated using a demodulation reference signal sequence (DMRS). 40. Communication device according to claim 38 or 39, in which: the first half-frame or the second half-frame in which the PBCH is sent is indicated by one bit in the information bits of the PBCH. 41. Communication device according to any one of paragraphs. 33-40, in which the PBCH is contained in a sync block. 42. Communication device according to any one of paragraphs. 33-41, in which the PBCH information bits include System Information Block (MIB) information bits. 43. Communication device, characterized in that it contains: a storage device containing a computer program; and a processor configured to execute said computer program to cause the communications device to perform the method of any one of claims. 1-11. 44. A computer-readable storage medium, characterized in that the computer storage medium contains a computer program, which executes the method according to any one of claims. 1-11. 45. Communication device, characterized in that it contains: a processor configured to execute a computer program of the storage device for implementing the method according to any one of paragraphs. 1-11. 46. Communication device, characterized in that it contains: a storage device containing a computer program; and a processor configured to execute said computer program to cause the communications device to perform the method of any one of claims. 23-32. 47. A computer-readable storage medium, characterized in that the computer-readable storage medium contains a computer program, when executed, the method according to any one of claims. 23-32. 48. Communication device, characterized in that it contains: a processor configured to execute a computer program of the storage device for implementing the method according to any one of paragraphs. 23-32.

Images