CN109845168A - Accidental access method and relevant apparatus - Google Patents

Abstract

This application discloses accidental access methods and relevant apparatus, wherein, the described method includes: the first equipment sends the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate second equipment and receives the signal that first equipment is sent in the target sub-band or send signal to first equipment；First equipment sends signal to second equipment in the target sub-band or receives the signal of the second equipment transmission.Using the technical solution of the application, the sub-band communicated between base station and terminal device can be adjusted in time, keep the load balancing of sub-band.

Description

Accidental access method and relevant apparatus Technical field

This application involves wireless communication field more particularly to accidental access methods and relevant apparatus.

Background technique

Random access is a very important process in mobile communication system, it is the last one step that communication link is established in terminal device and base station, random access procedure refers to the process of that sending random access lead code from user begins trying access network to before setting up basic signaling connection network.Terminal device carries out random access by random access channel (random access channel, RACH).

In long term evolution (long term evolution, LTE) system, the maximum band bandwidth that base station and terminal device can be supported is 20MHZ, has a RACH on a frequency band；In (new radio, NR) system of newly eating dishes without rice or wine, the maximum band bandwidth that base station can be supported can achieve 80MHZ even 160MHZ, and terminal device because cost limitation and technique limitation etc. factors, the maximum band bandwidth that can be supported still is 20MHZ.Therefore, terminal device can only work on the partial-band of base station, i.e. terminal device and base station are transmitted on a sub-band of base station, it will appear following situations at this time: accessing great amount of terminals equipment on a part of sub-band of base station and be constantly in busy state, non- access terminal equipment on another part sub-band and be constantly in idle state, load imbalance between each sub-band.

Summary of the invention

To solve the above-mentioned problems, the application provides accidental access method and relevant apparatus, can adjust the sub-band communicated between base station and terminal device in time, keep the load balancing of sub-band.

First aspect, the application provides a kind of accidental access method, it can be applied to terminal equipment side or network equipment side, including: the first equipment sends the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate the second equipment and receives the signal that the first equipment is sent in the target sub-band or send signal to the first equipment；First equipment sends signal to the second equipment in the target sub-band or receives the signal of the second equipment transmission.

Wherein, the first equipment can be terminal device, and the second equipment can be the network equipment；First equipment may be the network equipment, and the second equipment may be terminal device.

In this application, first equipment is by sending the first instruction message to the second equipment, sub-band instruction corresponding with target sub-band is carried in first instruction message, it is communicated so that the second equipment switches or accesses on target sub-band with the first equipment, the sub-band communicated between the first equipment and the second equipment can be adjusted in time, realize the load balancing between sub-band.

In a kind of possible design, the first instruction message can be random access response；First instruction message may be contention resolved response；First instruction message can also be downlink control command；First instruction message can also be device identification reporting message；First instruction message can also be leader sequence reporting message.Wherein, the first instruction message can be the message in random access scene competition-based, or, can also be for based on the message in quick random access scene based on the message in non-competing random access scene.

In a kind of possible design, target sub-band can be the sub-band in multiple sub-bands, and the first equipment is sent to the second equipment before the first instruction message further include: the first equipment receives the first information that the second equipment is sent, the first information Including the corresponding leader sequence of each sub-band in the multiple sub-band.Wherein, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, i.e., the set of multiple leader sequences；It may be the corresponding leader sequence Serial Number Range of each sub-band, i.e., the set of the number of multiple leader sequences.

In a kind of possible design, in the case where the first equipment is terminal device and second equipment is the network equipment, first instruction message be also used to indicate the target sub-band be the first equipment active sub-bands, i.e., target sub-band be terminal device active sub-bands.

In a kind of possible design, target sub-band is the sub-band in multiple sub-bands, first equipment is sent to the second equipment before the first instruction message further include: the first equipment receives the second information that the second equipment is sent, and second information includes the sub-band information of the multiple sub-band.

In a kind of possible design, sub-band information can be at least one of bandwidth, frequency domain position, frequency domain or channel loading parameter information.

In a kind of possible design, channel loading parameter can be the access probability of sub-band；Channel loading parameter may be the load instruction of sub-band；Channel loading parameter may be the access probability of the corresponding random access channel of sub-band；Channel loading parameter can also indicate for the load of the corresponding random access channel of sub-band.

In a kind of possible design, channel loading parameter can be the ratio of the quantity for the first equipment that the quantity for the first equipment that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the first equipment that the quantity for the first equipment that sub-band is currently accessed allows to access with the second equipment；Channel loading parameter can also be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter can also be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range；The numerical value that channel loading parameter obtains after being weighted with above-mentioned several numerical value；Channel loading parameter can above-mentioned several numerical value are obtained using modes such as sequences according to sequence number.

In a kind of possible design, target sub-band is the sub-band in multiple sub-bands, first equipment is sent to the second equipment before the first instruction message further include: the first equipment receives the third information that the second equipment is sent, and the third information includes the channel indicating information of the random access channel of multiple sub-bands；First equipment to the second equipment sends the first instruction message, and to include: the first equipment send the first instruction message to the second equipment in the corresponding random access channel of the target sub-band.Wherein, the corresponding random access channel of target sub-band can have one or more, and when the corresponding random access channel of target sub-band has multiple, the first equipment can send the first instruction message to the second equipment in any one random access channel.

In a kind of possible design, channel indicating information includes starting frequency domain position or frequency domain coverage area.

In a kind of possible design, sub-band instruction includes sub-band mark, frequency domain coverage area or leader sequence.In the case where the first instruction message is leader sequence reporting message, sub-band instruction can be leader sequence；In the case where the first instruction message is contention resolved response, downlink control command, random access response or device identification reporting message, sub-band instruction can be sub-band mark or frequency domain coverage area.

Second aspect, the application provide a kind of equipment, and the equipment has the function of realizing the first equipment described in first aspect, and the function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.

In a kind of possible design, the equipment includes transmission unit, for sending the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate the second equipment and receives the signal that the equipment is sent in the target sub-band or send signal to the equipment；The transmission unit is also For sending signal to the second equipment in the target sub-band；Receiving unit, for receiving the signal that the second equipment is sent in the target sub-band.

In a kind of possible design, the equipment includes processor and transceiver, and the processor is used to indicate the transceiver and receives or sends data；The transceiver, for sending the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate second equipment and receives the signal that the equipment is sent in the target sub-band or send signal to the equipment；The transceiver is also used to send signal to the second equipment in the target sub-band or receives the signal that the second equipment is sent.

Based on the same inventive concept, the principle and beneficial effect that the equipment solves the problems, such as may refer to method described in first aspect and brought beneficial effect, and the implementation of the equipment may refer to the implementation of first aspect the method, and overlaps will not be repeated.

The third aspect, the application provide a kind of accidental access method, are applied to network equipment side or terminal equipment side, comprising: the second equipment receives the first instruction message that the first equipment is sent, and first instruction message carries sub-band instruction corresponding with target sub-band；Second equipment receives the signal that first equipment is sent in the target sub-band or sends signal to first equipment.

In the application, the second equipment indicates to be communicated on target sub-band with the first equipment according to the sub-band in the first instruction message, can adjust the sub-band communicated between the first equipment and the second equipment in time, realizes the load balancing between sub-band.

In a kind of possible design, the first instruction message can be random access response；First instruction message may be contention resolved response；First instruction message can also be downlink control command；First instruction message can also be device identification reporting message；First instruction message can also be leader sequence reporting message.Wherein, the first instruction message can be the message in random access scene competition-based, or, can also be for based on the message in quick random access scene based on the message in non-competing random access scene.

In a kind of possible design, target sub-band can be the sub-band in multiple sub-bands, second equipment receives before the first instruction information that the first equipment is sent further include: the second equipment sends the first information to the first equipment, wherein, the first information includes the corresponding leader sequence of each sub-band in multiple sub-bands.Wherein, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, i.e., the set of multiple leader sequences；It may be the corresponding leader sequence Serial Number Range of each sub-band, i.e., the set of the number of multiple leader sequences.

In a kind of possible design, in the case where the second equipment is the network equipment and the first equipment is terminal device, first instruction message be also used to indicate the target sub-band be the first equipment active sub-bands, i.e., target sub-band be terminal device active sub-bands.

In a kind of possible design, target sub-band is the sub-band in multiple sub-bands, second equipment receives before the first instruction message that the first equipment is sent further include: the second equipment sends the second information to the first equipment, and second information includes the sub-band information of each sub-band in the multiple sub-band.

In a kind of possible design, sub-band information can be at least one of bandwidth, frequency domain position, frequency domain or channel loading parameter information.

In a kind of possible design, channel loading parameter can be the access probability of sub-band；Channel loading parameter may be the load instruction of sub-band；Channel loading parameter may be the access probability of the corresponding random access channel of sub-band；Channel loading parameter can also indicate for the load of the corresponding random access channel of sub-band.

In a kind of possible design, channel loading parameter can be the ratio of the quantity for the first equipment that the quantity for the first equipment that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the first equipment that the quantity for the first equipment that sub-band is currently accessed allows to access with the second equipment；Channel loading parameter can also be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter can also be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range；The numerical value that channel loading parameter obtains after being weighted with above-mentioned several numerical value；Channel loading parameter can above-mentioned several numerical value are obtained using modes such as sequences according to sequence number.

In a kind of possible design, target sub-band is the sub-band in multiple sub-bands, second equipment receives before the first instruction information that the first equipment is sent further include: the second equipment sends third information to the first equipment, and the third information includes the channel indicating information of the random access channel of multiple sub-bands；It includes: the first instruction message that the second equipment receives the transmission of the first equipment in the corresponding random access channel of the target sub-band that second equipment, which receives the first instruction message that the first equipment is sent,.

In a kind of possible design, channel indicating information includes starting frequency domain position or frequency domain coverage area.

In a kind of possible design, sub-band instruction includes sub-band mark, frequency domain coverage area or leader sequence.In the case where the first instruction message is leader sequence reporting message, sub-band instruction can be leader sequence；In the case where the first instruction message is contention resolved response, downlink control command, random access response or device identification reporting message, sub-band instruction can be sub-band mark or frequency domain coverage area.

Fourth aspect, the application provide a kind of equipment, and the equipment has the function of realizing the second equipment described in the third aspect, and the function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.

In a kind of possible design, the equipment includes receiving unit, and for receiving the first instruction message of the first equipment transmission, first instruction message carries sub-band instruction corresponding with target sub-band；The receiving unit is also used to receive the signal that first equipment is sent in the target sub-band；Transmission unit, for sending signal to first equipment in the target sub-band.

In a kind of possible design, the equipment includes processor and transceiver, and the processor is used to indicate the transceiver and receives or sends data；The transceiver, for receiving the first instruction message of the first equipment transmission, first instruction message carries sub-band instruction corresponding with target sub-band；The transceiver is also used to receive the signal that the first equipment is sent in the target sub-band or sends signal to the first equipment.

Based on the same inventive concept, the principle and beneficial effect that the equipment solves the problems, such as may refer to method described in the third aspect and brought beneficial effect, and the implementation of the equipment may refer to the implementation of third aspect the method, and overlaps will not be repeated.

5th aspect, the application provides a kind of accidental access method, applied to network equipment side, it include: the network equipment to terminal device the 4th information of transmission, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；The network equipment listens to the random access request of terminal device transmission in the corresponding random access channel of each sub-band at least one described sub-band.

Wherein, the 4th information can be above-mentioned first aspect or the first information, the second information or the third information of the third aspect.

In this application, the network equipment can send the various information of multiple sub-bands to terminal device, so that terminal device can be accessed in more appropriate sub-band.

In a kind of possible design, channel loading parameter can be the access probability of sub-band；Channel loading parameter may be the load instruction of sub-band；Channel loading parameter may be the access probability of the corresponding random access channel of sub-band；Channel loading parameter can also indicate for the load of the corresponding random access channel of sub-band.

In a kind of possible design, channel loading parameter can be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the network equipment；Channel loading parameter may be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter can also be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range；The numerical value that channel loading parameter obtains after being weighted with above-mentioned several numerical value；Channel loading parameter can also be the sequence number obtained to above-mentioned several numerical value using modes such as sequences.

In a kind of possible design, channel indicating information includes starting frequency domain position or frequency domain coverage area.

In a kind of possible design, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, i.e., the set of multiple leader sequences；It may be the corresponding leader sequence Serial Number Range of each sub-band, i.e., the set of the number of multiple leader sequences.

6th aspect, the application provide a kind of network equipment, and the equipment has the function of realizing the 5th aspect network equipment, and the function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.

In a kind of possible design, the equipment includes transmission unit, for sending the 4th information to terminal device, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；Receiving unit, for listening to the random access request of terminal device transmission in the corresponding random access channel of each sub-band at least one described sub-band.

In a kind of possible design, the equipment includes processor and transceiver, and the processor is used to indicate the transceiver and receives or sends data；The transceiver, for sending the 4th information to terminal device, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；The transceiver is also used to listen to the random access request of terminal device transmission in the corresponding random access channel of each sub-band at least one described sub-band.

Based on the same inventive concept, the principle and beneficial effect that the network equipment solves the problems, such as may refer to method and brought beneficial effect described in the 5th aspect, the implementation of the equipment may refer to the implementation of the 5th aspect the method, and overlaps will not be repeated.

7th aspect, the application provides a kind of accidental access method, applied to terminal equipment side, it include: that terminal device receives the 4th information that the network equipment is sent, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；Terminal device accesses target sub-band, wherein the target sub-band is the sub-band at least one described sub-band.

In this application, the various information for multiple sub-bands that terminal device can be sent according to the network equipment, can be accessed from multiple sub-bands in more appropriate sub-band.

Wherein, the 4th information can be above-mentioned first aspect or the first information, the second information or the third information of the third aspect.

In a kind of possible design, channel loading parameter can be the access probability of sub-band；Channel loading parameter may be the load instruction of sub-band；Channel loading parameter may be the access probability of the corresponding random access channel of sub-band；Letter Road load parameter can also indicate for the load of the corresponding random access channel of sub-band.

In a kind of possible design, channel loading parameter can be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the network equipment；Channel loading parameter can also be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter can also be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range；The numerical value that channel loading parameter obtains after can also being weighted for above-mentioned several numerical value；Channel loading parameter can also be the sequence number obtained to above-mentioned several numerical value using modes such as sequences.

In a kind of possible design, channel indicating information includes starting frequency domain position or frequency domain coverage area.

In a kind of possible design, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, i.e., the set of multiple leader sequences；It may be the corresponding leader sequence Serial Number Range of each sub-band, i.e., the set of the number of multiple leader sequences.

In a kind of possible design, terminal device access target sub-band includes: terminal device in the corresponding random access channel progress random access of target sub-band.In one embodiment, if the corresponding random access channel of target sub-band have it is multiple, terminal device can any one random access channel carry out random access.

In a kind of possible design, terminal device carries out random access in the corresponding random access channel of target sub-band and includes:

Terminal device sends random access request to the network equipment in the corresponding random access channel of target sub-band.

Eighth aspect, the application provide a kind of terminal device, and the equipment has the function of realizing the 7th aspect terminal device, and the function can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more modules corresponding with above-mentioned function.

In a kind of possible design, the terminal device includes receiving unit, for receiving the 4th information of network equipment transmission, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；Processing unit, for accessing target sub-band, wherein the target sub-band is the sub-band at least one described sub-band.

In a kind of possible design, the equipment includes processor and transceiver, and the processor is used to indicate the transceiver and receives or sends data；The transceiver, for receiving the 4th information of network equipment transmission, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；The processor is also used to access target sub-band by the transceiver, wherein the target sub-band is the sub-band at least one described sub-band.

Based on the same inventive concept, the principle and beneficial effect that the equipment solves the problems, such as may refer to method and brought beneficial effect described in the 7th aspect, the implementation of the terminal device may refer to the implementation of the 7th aspect the method, and overlaps will not be repeated.

9th aspect, the application provides a kind of computer storage medium, and for being stored as computer program instructions used in computer, it includes for executing program involved in above-mentioned first aspect.

Tenth aspect, the application provides a kind of computer storage medium, and for being stored as computer program instructions used in computer, it includes for executing program involved in the above-mentioned third aspect.

Tenth on the one hand, and the application provides a kind of computer storage medium, and for being stored as computer program instructions used in computer, it includes for executing program involved in above-mentioned 5th aspect.

12nd aspect, the application provides a kind of computer storage medium, and for being stored as computer program instructions used in computer, it includes for executing program involved in above-mentioned 7th aspect.

13rd aspect, the application provide a kind of computer program, the various methods provided for executing above-mentioned first aspect.

Fourteenth aspect, the application provide a kind of computer program, the various methods provided for executing the above-mentioned third aspect.

15th aspect, the application provide a kind of computer program, the various methods provided for executing above-mentioned 5th aspect.

16th aspect, the application provide a kind of computer program, the various methods provided for executing above-mentioned 7th aspect.

Detailed description of the invention

In order to illustrate more clearly of the technical solution in the application, the drawings to be used in the embodiments are briefly described below.

Fig. 1 is a kind of wireless communication system architecture figure provided by the present application；

Fig. 2 is random access procedure schematic diagram competition-based；

Fig. 3 is based on non-competing random access procedure schematic diagram；

Fig. 4 is the flow diagram based on quick random access；

Fig. 5 a is the corresponding relationship of a kind of RACH and sub-band provided by the present application and the schematic diagram of sub-band division；

Fig. 5 b is the corresponding relationship of another kind RACH and sub-band provided by the present application and the schematic diagram of sub-band division；

Fig. 6 a is the corresponding relationship of another kind RACH and sub-band provided by the present application and the schematic diagram of sub-band division；

Fig. 6 b is the corresponding relationship of another RACH and sub-band provided by the present application and the schematic diagram of sub-band division；

Fig. 7 a is the corresponding relationship of another RACH and sub-band provided by the present application and the schematic diagram of sub-band division；

Fig. 7 b is the corresponding relationship of another RACH and sub-band provided by the present application and the schematic diagram of sub-band division；

Fig. 8 is a kind of flow diagram of accidental access method provided by the embodiments of the present application；

Fig. 9 is the flow diagram of another accidental access method provided by the embodiments of the present application；

Figure 10 a is the contrast schematic diagram of sub-band variation provided by the present application；

Figure 10 b is the contrast schematic diagram of another sub-band variation provided by the present application；

Figure 10 c is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 11 is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 12 a is the contrast schematic diagram of another sub-band variation provided by the present application；

Figure 12 b is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 13 a is the contrast schematic diagram of another sub-band variation provided by the present application；

Figure 13 b is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 13 c is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 14 a is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 14 b is the contrast schematic diagram of the variation of another sub-band provided by the present application；

Figure 15 is the structural schematic diagram of the system of the first equipment and the second equipment composition provided by the embodiments of the present application；

Figure 16 is the structural schematic diagram of the system of the first equipment and the second equipment composition provided by the embodiments of the present application；

Figure 17 is a kind of hardware structural diagram of network equipment provided by the embodiments of the present application；

Figure 18 is a kind of structural block diagram of implementation of terminal device provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with the attached drawing in the application, the technical solution in the application is described.

The embodiment of the present application can be applied to terminal device wireless communication systems different or with multiple sub-bands from the maximum band bandwidth that base station is supported, wireless communication system is usually made of cell, each cell includes a base station (base station, BS), base station provides communication service to multiple terminal devices, wherein base station is connected to equipment of the core network, as shown in Figure 1.Wherein, base station includes Base Band Unit (baseband unit, BBU) and remote radio unit (RRU) (remoteradio unit, RRU).BBU and RRU can be placed on different places, such as: RRU is zoomed out, and is placed in the open area from high traffic, and BBU is placed in central machine room.BBU and RRU can also be placed on same computer room.BBU and RRU may be the different components under a rack.

It should be noted that, the wireless communication system that the embodiment of the present application refers to includes but is not limited to: narrowband Internet of things system (narrow band-internet of things, NB-IoT), global system for mobile communications (global system for mobile communications, GSM), enhanced data rates for gsm evolution system (enhanced data rate for GSM evolution, EDGE), broadband CDMA system (wideband code division multiple access, WCDMA), CDMA 2000 system (co De division multiple access, CDMA2000), TDS-CDMA system (time division-synchronization code division multiple access, TD-SCDMA), LTE system, 5G system and future mobile communication system.

In the embodiment of the present application, the base station is a kind of is deployed in wireless access network to provide the device of wireless communication function for terminal device.The base station may include various forms of macro base stations, micro-base station (also referred to as small station), relay station, access point, transmission access point (Transmission Receiver point, TRP) etc..In the system using different wireless access technologys, the title for having the equipment of base station functions may be different, such as, in 5G system, referred to as a new generation node B (generationNodeB, gNB), in a kind of optinal plan, referred to as node B (the evolved NodeB of evolution, eNB or eNodeB), in the third generation (3rd Generation, 3G) system, referred to as node B (Node B, NB) etc..For convenience of description, in all embodiments of the application, the above-mentioned device for providing wireless communication function for terminal device is referred to as the network equipment.

Involved terminal device may include the various handheld devices with wireless communication function, mobile unit, wearable device, calculate equipment or be connected to other processing equipments of radio modem in the embodiment of the present application.The terminal device is referred to as mobile station (mobilestation, MS), terminal (terminal), can also include subscriber unit (subscriber unit), cellular phone (cellular phone), smart phone (smart phone), wireless data card, personal digital assistant (personal digital assistant, PDA) computer, plate computer, radio modem (modem), handheld device (handset), laptop computer (laptop computer), machine type communication (machine type communication, MTC) eventually End etc..For convenience of description, in all embodiments of the application, apparatus mentioned above is referred to as terminal device.

For the technical solution convenient for preferably introducing the application, several scenes that terminal device carries out random access are introduced first.

The first scene, terminal device mode competition-based carry out random access, and referring to fig. 2, Fig. 2 is random access procedure schematic diagram competition-based.

Step S101, terminal device send leader sequence reporting message Msg1 to the network equipment, wherein carry leader sequence in leader sequence reporting message Msg1.

In the case where switching over or initial access network, terminal device is in Physical Downlink Control Channel (physical downlink control channel, PDCCH it) listens to the broadcast message of network equipment transmission and gets RACH and Physical Random Access Channel (physical random channel, PRACH (configuration parameter includes leader sequence resources to configuration parameter), running time-frequency resource, power resource etc.) after, random access request is initiated to the network equipment.After terminal device determines leader sequence and relevant running time-frequency resource and power resource, the leader sequence reporting message Msg1 for carrying the leader sequence is sent to the network equipment on RACH.

Step S102, the network equipment send random access response (random access response, RAR) Msg2 to terminal device.

For the network equipment after receiving and being correctly decoded the leader sequence of terminal device transmission, the network equipment sends random access response Msg2 to terminal device.

Step S103, terminal device identify reporting message Msg3 to network equipment sending device, wherein the device identification of device identification reporting message Msg3 carried terminal equipment.

Terminal device monitors PDCCH in the time window of random access feedback after sending leader sequence reporting message to the network equipment, to receive the random access response Msg2 of network equipment transmission；After terminal device receives random access response Msg2 in the time window that random access is fed back, obtain the time synchronization and ascending resource of uplink, but terminal device does not know whether random access response Msg2 is that the network equipment is sent to the terminal device, the resource (resource here includes leader sequence resources and running time-frequency resource) currently selected is not known whether selected by other terminal devices yet yet, then terminal device identifies reporting message Msg3 to network equipment sending device, in order to which the network equipment determines the identity of terminal device.

Step S104, the network equipment send contention resolved to terminal device and respond (contention resolution) Msg4.

When carrying out random access, there may be multiple terminal devices that identical leader sequence and running time-frequency resource is selected to carry out random access, when these equipment carry out random access using identical leader sequence and running time-frequency resource, conflict is formed between the device identification reporting message Msg3 for selecting the terminal device of same resource to send each other, the network equipment may can only receive and be correctly decoded the device identification reporting message Msg3 of one of them or the transmission of several equipment at this time, for the corresponding terminal device of the successful device identification reporting message Msg3 of reception, the network equipment sends contention resolved response Msg4 to this section terminating equipment to inform the success of this section terminating equipment contention access.

After terminal device receives contention resolved response Msg4, this random access success competition-based is determined.

By step S101~S104, terminal device is completed based on the process that competitive way carries out random access.

Second of scene, terminal device are based on non-competing carry out random access, are based on non-competing random access procedure schematic diagram referring to Fig. 3, Fig. 3.

Step S201, terminal device send leader sequence reporting message Msg1 to the network equipment, wherein carry leader sequence in leader sequence reporting message Msg1.

In losing uplink synchronous or handoff procedure, the network equipment can distribute a leader sequence and specific running time-frequency resource in advance and carry out random access to terminal device；Terminal device sends leader sequence reporting message Msg1 to the network equipment on corresponding running time-frequency resource after receiving leader sequence.

Step S201, the network equipment send random access response Msg2 to terminal device.

For the network equipment after the leader sequence for having correctly received terminal device transmission, terminal device sends random access response Msg2.

Terminal device monitors object in the time window of random access feedback after sending leader sequence reporting message to the network equipment It manages down control channel (physical downlink control channel, PDCCH), to receive the random access response Msg2 of network equipment transmission；When terminal device receives random access response Msg2 in the time window that random access is fed back, obtain the time synchronization and ascending resource of uplink, simultaneously as leader sequence and running time-frequency resource are all that the network equipment is sent to the terminal device, terminal device determines that random access response Msg2 is that the network equipment is sent to the terminal device, that is, determines local based on non-competing random access success.

By step S201~S202, terminal device is completed based on the process that non-competing mode carries out random access.

The third scene, terminal device lose uplink synchronous, and network equipment triggering base station equipment re-starts random access.

After terminal device loses synchronous with the network equipment, the network equipment actively can send downlink control command PDCCH order notice base station to terminal device and re-start random access, after base station receives downlink control command PDCCH order, re-initiate random access procedure, detailed process can be found in the description of above-mentioned the first or second of random access scene.

4th kind of scene, terminal device carry out quick random access, and quick random access is a kind of possible scheme that low time delay is realized in NR standard, and referring to fig. 4, Fig. 4 is the flow diagram based on quick random access.

Step S301, terminal device send leader sequence reporting message Msg1 to the network equipment, wherein carry leader sequence in leader sequence reporting message Msg1.

Step S302, terminal device identify reporting message Msg3 to network equipment sending device, wherein the device identification of device identification reporting message Msg3 carried terminal equipment.

Terminal device is after having sent leader sequence reporting message Msg1, show the identity of oneself to network equipment sending device mark reporting message Msg3 immediately again, as long as receiving the random access response Msg2 of network equipment transmission, then terminal device can determine that random access response Msg2 is that the network equipment is sent to oneself, further then determine that this is successfully accessed, and saves the time.In alternate embodiments, leader sequence reporting message Msg1 and device identification reporting message Msg3 can be the message continuously transmitted in the time domain, or the message of discontinuous transmission in the time domain.

Terminal is after identifying reporting message Msg3 to network equipment sending device, Physical Downlink Control Channel (physical downlink control channel is monitored in the time window of random access feedback, PDCCH), so as to receive the network equipment transmission random access response Msg2.

Step S303, the network equipment send random access response (random access response, RAR) Msg2 to terminal device.

For the network equipment after the leader sequence reporting message Msg1 and mark reporting message Msg3 for being successfully received terminal device transmission, sending random access response Msg2 mark to terminal device indicates that the terminal device is successfully accessed.

By step S301~S303, terminal device is completed based on the process of quick random access.

In NR system, the bandwidth of the frequency band of base station is wider, and more terminal devices can be supported to access, and terminal can carry out random access according to communication requirement and be worked on the partial-band of NR system.Frequency band can be divided into multiple sub-bands by the characteristics of based on NR system, and the splitting scheme of several sub-bands of the application and the corresponding scheme of sub-band and RACH is described below.

The first scheme, and the quantity of sub-band is identical and RACH is one-to-one relationship with sub-band for the quantity of RACH.

In the case where a kind of possible, the sub-band of NR system is divided into A frequency domain sub-band of same size, and it includes a RACH in each sub-band that A, which is the positive integer more than or equal to 1, and each sub-band in A sub-band is not overlapped mutually.

Such as A=4, referring to Fig. 5 a, Fig. 5 a is the corresponding relationship of a kind of RACH and sub-band provided by the present application and the schematic diagram of sub-band division.As shown, the frequency band of NR system is divided into 4 sub-bands, respectively sub-band 1, sub-band 2, sub-band 3 and sub-band 4, it is not overlapped mutually between each sub-band, includes a RACH in each sub-band.

In the case where alternatively possible, the sub-band of NR system is divided into B frequency domain sub-band of different size, and B is the positive integer more than or equal to 1, and each sub-band of B sub-band is not overlapped mutually, includes a RACH in each sub-band.

Such as B=4, referring to Fig. 5 b, Fig. 5 b is the corresponding relationship of another kind RACH and sub-band provided by the present application and the schematic diagram of sub-band division.As shown, NR system is divided into 4 frequency domain sub-bands of different size, respectively sub-band 1, sub-band 2, sub-band 3 and sub-band 4, it is not overlapped mutually between each sub-band, includes a RACH in each sub-band.

Second scheme, RACH only have one, and the quantity of sub-band has multiple, and RACH and sub-band are one-to-many relationship.

In the case where a kind of possible, the sub-band of NR system can be divided into C sub-band, and it includes a RACH in only one of them sub-band that C, which is the positive integer more than or equal to 1, and each sub-band in C sub-band is not overlapped mutually.

Such as C=4, referring to Fig. 6 a, Fig. 6 a is the corresponding relationship of another kind RACH and sub-band provided by the present application and the schematic diagram of sub-band division, as shown, the frequency band of NR system is divided into 4 frequency bands, respectively sub-band 1, sub-band 2, sub-band 3 and sub-band 4 are not overlapped mutually between each sub-band, wherein, the frequency domain of RACH is in the frequency domain of sub-band 1.

In the case where alternatively possible, there is the sub-band of D kind frequency domain width in the frequency band of NR system, wherein, frequency domain width be Fi (i=1,2, ..., D sub-band) has M/Fi, and M is the frequency domain width of entire frequency band, is not overlapped mutually between the sub-band that frequency domain width is Fi, wherein, only one sub-band includes RACH in the sub-band of identical frequency domain width.

Such as D=3, referring to Fig. 6 b, Fig. 6 b is the corresponding relationship of another RACH and sub-band provided by the present application and the schematic diagram of sub-band division, as shown, the frequency band of NR system is divided into 7 sub-bands, respectively sub-band 1, sub-band 2, sub-band 3, sub-band 4, sub-band 5, sub-band 6 and sub-band 7.Wherein, the frequency domain of sub-band 1, sub-band 2, sub-band 3 and sub-band 4 is of same size, is F1, sub-band 1, and sub-band 2 is not overlapped mutually between sub-band 3 and sub-band 4；The frequency domain of sub-band 5, sub-band 6 is of same size, is F2, F2=2F1, is not overlapped mutually between sub-band 5 and sub-band 6；The frequency domain width of sub-band 7 is F3, and F3 is the frequency domain width of entire frequency band, F3=2F2=4F1.It include RACH only in sub-band 1 in the sub-band that frequency domain width is F1；It include RACH only in sub-band 5 in the sub-band that frequency domain width is F2.

The third scheme, RACH has multiple, the quantity of sub-band has multiple, the relationship of RACH and sub-band is the relationship of multi-to-multi, the sub-band that RACH and the relationship of sub-band meet the frequency domain where frequency domain covering RACH is corresponding with the RACH, and the frequency domain where one RACH of frequency domain covering of even one sub-band, then the RACH is the RACH in the sub-band, the RACH is corresponding with the sub-band, which can be used for accessing the sub-band.

There is the sub-band of E kind frequency domain width in the frequency band of NR system, wherein frequency domain width is that the sub-band of Fj (j=1,2 ..., E) there are M/Fj, and M is the frequency domain width of entire frequency band, and frequency domain width is not overlapped mutually between Fj sub-band.

In one possible implementation, the quantity of RACH is equal to the quantity of the smallest sub-band of frequency domain width, it is assumed that frequency domain width F1 is minimum, then frequency domain width is in each sub-band of F1 comprising a RACH.If frequency domain width is big Frequency domain where the frequency domain covering RACH of the sub-band of F1, then the RACH is also contained in sub-band of these frequency domain width greater than F1, the RACH can be used for accessing the sub-band that these frequency domain width are greater than F1, and sub-band of the frequency domain width greater than F1 may include at least one RACH.

Such as E=3, referring to Fig. 7 a, Fig. 7 a is the corresponding relationship of another RACH and sub-band provided by the present application and the schematic diagram of sub-band division, as shown, the frequency band of NR system is divided into 7 sub-bands, respectively sub-band 1, sub-band 2, sub-band 3, sub-band 4, sub-band 5, sub-band 6 and sub-band 7.Wherein, the frequency domain of sub-band 1, sub-band 2, sub-band 3 and sub-band 4 is of same size, is F1, sub-band 1, and sub-band 2 is not overlapped mutually between sub-band 3 and sub-band 4；The frequency domain of sub-band 5, sub-band 6 is of same size, is F2, F2=2F1, is not overlapped mutually between sub-band 5 and sub-band 6；The frequency domain width of sub-band 7 is F3, and F3 is the frequency domain width of entire frequency band, F3=2F2=4F1.Wherein, frequency domain width is the sub-band of F1, i.e. sub-band 1, sub-band 2, includes a RACH in sub-band 3 and sub-band 4；Sub-band of the frequency domain width greater than F1 includes multiple RACH, i.e. sub-band 5, and sub-band 6 includes two RACH, and sub-band 7 includes 4 RACH.

In alternatively possible implementation, the quantity of RACH is less than the quantity for the sub-band that frequency domain width is Fj, i.e. frequency domain width is that only part sub-band includes RACH in the sub-band of Fj.If the frequency domain where the frequency domain covering RACH of sub-band of the frequency domain width greater than Fj, then the RACH is also contained in sub-band of these frequency domain width greater than F1, the RACH can be used for accessing the sub-band that these frequency domain width are greater than Fj, and sub-band of the frequency domain width greater than Fj may include at least one RACH.

Such as E=3, j=1, referring to Fig. 7 b, Fig. 7 b is the corresponding relationship of another RACH and sub-band provided by the present application and the schematic diagram of sub-band division, as shown in the figure, the frequency band of NR system is divided into 7 sub-bands, respectively sub-band 1, sub-band 2, sub-band 3, sub-band 4, sub-band 5, sub-band 6 and sub-band 7.Wherein, the frequency domain of sub-band 1, sub-band 2, sub-band 3 and sub-band 4 is of same size, is F1, sub-band 1, and sub-band 2 is not overlapped mutually between sub-band 3 and sub-band 4；The frequency domain of sub-band 5, sub-band 6 is of same size, is F2, F2=2F1, is not overlapped mutually between sub-band 5 and sub-band 6；The frequency domain width of sub-band 7 is F3, and F3 is the frequency domain width of entire frequency band, F3=2F2=4F1.Wherein, in the sub-band that frequency domain width is F1, only sub-band 1 and sub-band 3 include RACH；In the sub-band that frequency domain width is F2, sub-band 5 and sub-band 6 include RACH, and sub-band 7 includes two RACH.

It is limited it should be understood that the above-mentioned several schemes enumerated should not be constituted the application, in alternate embodiments, frequency band is there are also other division modes, for example, can also partially overlap between frequency domain sub-band of same size；There are also other corresponding relationships for the corresponding relationship of RACH and sub-band.

Above describe the corresponding relationships of the scene of random access, frequency band splitting scheme and RACH and sub-band, and next the present processes are introduced.

A kind of flow diagram of accidental access method provided by the embodiments of the present application referring to Fig. 8, Fig. 8, the application be embodiment be applicable to it is above-mentioned the first for sub-band division and sub-band scheme corresponding with RACH's, as shown in the figure, which comprises

Step S401, the network equipment sends the 4th information to terminal device, terminal device receives the 4th information, wherein, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band.

Optionally, 4th information can be broadcast message, 4th information can be carried at main information block (master information block, MIB), be sent to terminal device in system information block (system information block, SIB)；Further, SIB can be SIB1, or SIB2.

Optionally, sub-band information may include one or more of information in bandwidth, frequency domain position, frequency domain and channel loading parameter.

Wherein, channel loading parameter can be used for characterizing the busy extent of sub-band, can be used for the success rate that characterization terminal device accesses the sub-band by the RACH on the sub-band.

Optionally, channel loading parameter can be the access probability of sub-band, or the access probability of the corresponding RACH of the sub-band, it can also be indicated for the load of sub-band, it can also be indicated for the load of the corresponding RACH of the sub-band, can also be the combination of several parameters in the load instruction of access probability, sub-band and the load instruction of the corresponding RACH of sub-band of the corresponding RACH of access probability, sub-band of sub-band.

Wherein, the busy extent that the load instruction of sub-band can be used for characterizing sub-band indicates that sub-band is in idle condition with 0 for example, indicating that sub-band is in a busy state with 1；The busy extent that the load instruction of RACH can be used for characterizing the RACH on sub-band indicates that the RACH on sub-band is in idle condition with 1 for example, indicating that the RACH on sub-band is in a busy state with 0；Optionally, the busy extent of sub-band or the busy extent of the RACH on sub-band can also be indicated with numerical value, for example, the busy extent that can indicate sub-band with 1~10, wherein, numerical value is bigger, then busy extent is higher, such as, the busy extent that can also indicate sub-band with 0~1, wherein, numerical value is smaller, then busy extent is higher.The case where channel loading parameter indicates for the load of sub-band or the corresponding RACH of sub-band can be used by assessing channel loading parameter because usually determining specifically load indicates no longer be enumerated herein come the busy extent for characterizing sub-band with which kind of.

Wherein, the access probability of sub-band or the access probability of RACH can be used for characterizing the success rate that terminal device carries out random access by the RACH on the sub-band, access probability is bigger, then it represents that terminal device is higher by the success rate that the RACH on the sub-band carries out random access.

Such as, the corresponding relationship of current sub-band and RACH are as shown in Fig. 5 a or Fig. 5 b, wherein, the access probability of sub-band 1 is 0.5, the access probability of sub-band 2 is 0.4, the access probability of sub-band 3 is 0.6, the access probability of sub-band 4 is 0.2, can then use respectively 0.5,0.4,0.6,0.2 as sub-band 1, sub-band 2, sub-band 3 and sub-band 4 channel loading parameter, according to probability theory, terminal device carries out the successful probability maximum of random access on sub-band 3, and it is minimum that terminal device carries out the successful probability of random access on sub-band 4.

It is alternatively possible to determine channel loading parameter according to the terminal device quantity that connects on sub-band, the sub-band information such as occupied time that are averaged.

Optionally, if channel loading parameter is the access probability of sub-band or the access probability of the RACH on sub-band, channel loading parameter can be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the network equipment.If channel loading parameter is the load instruction or the load of the RACH on sub-band instruction of sub-band, channel loading parameter can be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter may be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range, wherein, duty ratio refers within past a period of time, the ratio for the time that sub-band occupied time and sub-band are in idle condition.

Citing is below to be illustrated several channel loading parameters, it is assumed that the case where sub-band is as shown in Figure 5 a.

1) channel loading parameter is the access probability of sub-band, and channel loading parameter is bigger, then the success rate that terminal device is accessed by the RACH on sub-band is higher.

Assuming that the terminal device quantity that each sub-band allows to access is 100, the quantity for the terminal device that sub-band 1 is currently accessed is 30, the quantity for the terminal device that sub-band 2 is currently accessed is 20, the quantity for the terminal device that sub-band 3 is currently accessed is 40, and the quantity for the terminal device that sub-band 4 is currently accessed is 50.

In a kind of possible embodiment, the channel loading parameter of sub-band 1 is 0.3, and the channel loading parameter of sub-band 2 is 0.35, and the channel loading parameter of sub-band is 0.2, and the channel loading parameter of sub-band 3 is 0.4, and the channel loading parameter of sub-band 4 is 0.5.

In alternatively possible embodiment, the channel loading parameter of sub-band 1 is 0.075, the channel loading parameter 0.05 of sub-band 2, and the channel loading parameter of sub-band 3 is 0.1, and the channel loading parameter of sub-band 4 is 0.125.

2) channel loading parameter is the access probability of the corresponding RACH of sub-band, and channel loading parameter is bigger, then the success rate that terminal device is accessed by the RACH on sub-band is higher.

The access probability of the corresponding RACH of sub-band can be set to identical as the access probability of sub-band.

3) channel loading parameter is that the load of sub-band indicates.

Assuming that the duty ratio of sub-band 1 is 0.1 within past a period of time, the duty ratio of sub-band 2 is 0.2, and the duty ratio of sub-band 3 is 0.3, and the duty ratio of sub-band 4 is 0.4.

According to the setting rule of " channel loading parameter is smaller; the busy extent of sub-band is higher ", then in one implementation, the channel loading parameter of sub-band 1 is 0.1, the channel loading parameter of sub-band 2 is 0.2, the channel loading parameter of sub-band is 0.3, and the channel loading parameter of sub-band is 0.4；In another implementation, the channel loading parameter of sub-band 1 is 0.25, and the channel loading parameter of sub-band 2 is 0.5, and the channel loading parameter of sub-band 3 is 0.75, and the channel loading parameter of sub-band 4 is 1.

According to the setting rule of " channel loading parameter is bigger; the busy extent of sub-band is higher ", then the channel loading parameter of sub-band 1 can be 16, and the channel loading parameter of sub-band 2 can be 8, the channel loading parameter of sub-band 3 can be 4, and the channel loading parameter of sub-band 4 can be 2.

4) load that channel loading parameter is the corresponding RACH of sub-band indicates.

The load instruction that the load instruction of the corresponding RACH of sub-band can be set to sub-band is identical.

Optionally, channel indicating information can be starting frequency domain position or frequency domain coverage area.

In one possible implementation, RACH is fixed in the position of sub-band, the bandwidth of RACH is also fixed, it can then indicate that specific location of the RACH on frequency domain, terminal device can determine the specific location on frequency domain of RACH according to the position of sub-band or the starting frequency domain position of RACH with the starting frequency domain position of RACH.

In alternatively possible implementation, specific location of the RACH on frequency domain is indicated with frequency domain coverage area, such as the frequency domain coverage area of RACH is 100MHZ~105MHZ, terminal device can determine specific location of the RACH on frequency domain according to frequency domain coverage area.

Optionally, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, or the sequence number range of the corresponding leader sequence group of each sub-band.It wherein, is the set of multiple leader sequences in leader sequence group, the leader sequence in same leading group corresponds to the same sub-band；The sequence number range of leader sequence group is the set of multiple leader sequences number, the corresponding same sub-band of leader sequence number of the same sequence number range.

Such as, the case where sub-band, is as shown in Figure 5 a, 4 sub-bands correspond to 64 leader sequences in total, then the leader sequence that number is 1~16 can be distributed into sub-band 1, the leader sequence of number 17~32 is distributed into sub-band 2, the leader sequence of number 33~48 is distributed into sub-band 3, the leader sequence of number 49~64 is distributed into sub-band 4.Include in the corresponding leader sequence group of sub-band 1 is then the leader sequence that number is 1~number 16, include in the sequence number range of the corresponding leader sequence group of sub-band 1 is then 1~number of number 16, for number with leader sequence there are one-to-one relationship, terminal device can determine the corresponding leader sequence of sub-band by number.

Step S402, terminal device access target sub-band, wherein target sub-band is the sub-band at least one sub-band.

Optionally, terminal device can determine the concrete condition of each sub-band according to the 4th information that the network equipment is sent, it is accessed in target sub-band, wherein, terminal device carries out random access in the corresponding RACH of target sub-band, the detailed process of access can refer to the description of above-mentioned four kinds of random access scenes according to specific scene, such as, terminal device is first access network, it then can be according to access target sub-band the step of the first above-mentioned scene, such as, terminal device is to lose uplink synchronous to need to access network, it then can be according to access target sub-band the step of above-mentioned second of scene, details are not described herein.

Optionally, terminal device can will be comparatively idle in multiple sub-bands or be successfully accessed the higher sub-band of rate as target sub-band according to the 4th information that the network equipment is sent.

In the application implementation, RACH is one-to-one relationship with sub-band, the network equipment is by sending the 4th information to terminal device, inform the information of the multiple sub-bands of terminal device, terminal device is after the case where each sub-band has been determined, it can be accessed in more idle target sub-band, all terminal devices can avoid by the relevant information for sending sub-band to terminal device and concentrate on a sub-band carrying out random access, help to realize the load balancing of sub-band.

It is the flow diagram of another accidental access method provided by the embodiments of the present application referring to Fig. 9, Fig. 9, the embodiment of the present application is applicable to above-mentioned second for sub-band division and sub-band scheme corresponding with RACH's, as shown in the figure, which comprises

Step S501, the first equipment send the first instruction message to the second equipment, and the second equipment receives the first instruction message, wherein the first instruction message carries sub-band instruction corresponding with target sub-band.

Wherein, target sub-band is the sub-band in multiple sub-bands.

Wherein, sub-band instruction can identify for sub-band, sub-band instruction or frequency domain coverage area, sub-band instruction or leader sequence.

In one possible implementation, each sub-band can be distinguished with a unique mark, for example, the division of sub-band is as shown in Figure 6 b, then the mark of sub-band 1 can be 001, the mark of sub-band 2 can be 010, the mark of sub-band 3 can be 011, and the mark of sub-band 4 can be 100, and the mark of sub-band 5 can be 101, the mark of sub-band 6 can be 110, and the mark of sub-band 7 can be 111.

In alternatively possible implementation, each sub-band can be directly distinguished with the frequency domain coverage area of sub-band, such as, the division of sub-band is as shown in Figure 6, then the frequency domain coverage area of sub-band 1 is a~a+F1, the frequency domain coverage area of sub-band 2 is a+F1~a+2F1, the frequency domain coverage area of sub-band 3 is a+2F1~a+3F1, the frequency domain coverage area of sub-band 4 is a+3F1~a+4F1, the frequency domain coverage area of sub-band 5 is a~a+F2, the frequency domain coverage area of sub-band 6 is a+~a+2F2, the frequency domain coverage area of sub-band 7 is a~a+F3, wherein, a is the corresponding wireless frequency in initial position of entire frequency band.

In another possible implementation, as described in first method implementation of the application, different leader sequences or leader sequence component are assigned to different sub-bands, there are corresponding relationships with sub-band for leader sequence, it can then use leader sequence to indicate as sub-band, distinguish each sub-band with the corresponding leader sequence of sub-band.

Step S502, the second equipment are communicated in target sub-band with the first equipment.

Wherein, the first equipment can be the network equipment, and the first equipment may be terminal device.When the first equipment is the network equipment, the second equipment is terminal device, and when the first equipment is terminal device, the second equipment is the network equipment.Introducing the first equipment separately below is terminal device and the case where the first equipment is the network equipment.

Optionally, it includes: that the second equipment sends signal to the first equipment on target sub-band that the second equipment communicate with the first equipment in target sub-band；Or second equipment receive the first equipment send signal.

1) the first equipment is the network equipment, and the second equipment is terminal device.

First instruction message can be random access response Msg2, sub-band instruction can be sub-band mark or frequency domain coverage area, wherein, first instruction message be random access response Msg2 be suitable for it is above-mentioned the first, the scene of second and the 4th kind random access, terminal device, which receives, to be switched to sub-band after random access response Msg2 and indicates to work on corresponding target sub-band, that is, is switched to sending device on target sub-band and is identified reporting message Msg3.

Citing comes in three kinds of random access scenes below, sub-band variation in the case that first instruction message is random access response Msg2 is illustrated, referring to Figure 10 a- Figure 10 b, assuming that being communicated on the first sub-band when the network equipment and initial terminal device, target sub-band same RACH corresponding with the first sub-band, the RACH does not have RACH on target sub-band on the first sub-band.

Figure 10 a is the contrast schematic diagram for being directed to the variation of sub-band of the first random access scene, as shown in the figure, in a kind of optinal plan, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 are transmitted on the RACH on a frequency band；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 on the RACH of the first sub-band, the network equipment sends random access response Msg2 to terminal device on the RACH channel, random access response Msg2 carries sub-band instruction, after terminal device receives random access response Msg2, sending device on target sub-band, which is switched to, according to sub-band instruction identifies reporting message Msg3, the network equipment sends contention resolved response Msg4 on target sub-band, optionally, terminal device is after receiving contention resolved response Msg4, the scheduling informations such as the PDCCH of network equipment transmission can be also listened on the target sub-band.

Figure 10 b is the contrast schematic diagram for being directed to the variation of sub-band of second of random access scene, as shown, leader sequence reporting message Msg1, random access response Msg2 are transmitted on the RACH on a frequency band in a kind of optinal plan；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 on the RACH of the first sub-band, the network equipment sends random access response Msg2 to terminal device on the RACH channel, random access response Msg2 carries sub-band instruction, after terminal device receives random access response Msg2, it is switched on target sub-band and is worked according to sub-band instruction, for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

Figure 10 c is the contrast schematic diagram for being directed to the variation of sub-band of the 4th kind of random access scene, as shown in the figure, in a kind of optinal plan, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3 are transmitted on the RACH on the first sub-band；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 and device identification reporting message Msg3 on the RACH of the first sub-band, and the network equipment is in the RACH On to terminal device send random access response Msg2, after terminal device receives random access response Msg2, it is switched on target sub-band and is worked according to sub-band instruction, for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

First instruction message may be contention resolved response Msg4, sub-band instruction can be sub-band mark or frequency domain coverage area, wherein, first instruction message is the scene that contention resolved responds that Msg4 is suitable for the first above-mentioned random access, terminal device, which receives, to be switched to sub-band after contention resolved response Msg4 and indicates to work on corresponding target sub-band, such as be switched to target sub-band transmitting data etc..

Sub-band variation in the case that citing below comes to the first instruction message responds Msg4 for contention resolved in the first random access scene is illustrated, referring to Figure 11.As shown, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 are transmitted on the RACH on a frequency band in a kind of optinal plan；Using the scheme of the embodiment of the present application, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 is transmitted on the first sub-band, after terminal device receives contention resolved response Msg4, it is switched on target sub-band and is worked according to sub-band instruction, for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

First instruction message can also be downlink control command PDCCH order, and sub-band instruction can be sub-band mark or frequency domain coverage area, wherein the first instruction message is downlink control command PDCCH order, the scene suitable for the third above-mentioned random access.Terminal device is switched to sub-band after receiving downlink control command PDCCH order and indicates to work on corresponding target sub-band, carries out random access competition-based or based on non-competing random access.

In alternate embodiments, it can use original Downlink Control Information (downlink control information, DCI) the partial information bit in format indicates to carry sub-band, can modify the partial content in a kind of original DCI format at this time；A kind of DCI format can also be defined newly to carry sub-band instruction, such as partial content can be increased newly on the basis of a kind of original DCI format.

Sub-band variation in the case that citing below comes to the first instruction message is downlink control command PDCCH order in the third random access scene is illustrated, referring to Figure 12 a and Figure 12 b.As figure 12 a shows, in a kind of optinal plan, downlink control command PDCCH order, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 are transmitted on the RACH on a frequency band；Using the scheme of the embodiment of the present application, the network equipment sends downlink control command PDCCH order to terminal device on the RACH of the first sub-band, after terminal device receives downlink control command PDCCH order, it is switched on target sub-band and carries out random access competition-based, that is leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 are transmitted on target sub-band.As shown in Figure 12b, in the prior art, downlink control command PDCCH order, leader sequence reporting message Msg1, random access response Msg2 are transmitted on the RACH on the first sub-band；Using the scheme of the embodiment of the present application, the network equipment sends downlink control command PDCCH order to terminal device on the RACH of the first sub-band, after terminal device receives downlink control command PDCCH order, it is switched on target sub-band and carries out based on non-competing random access, that is leader sequence reporting message Msg1, random access response Msg2 are transmitted on target sub-band.

It should be understood that, in the third random access scene, it is being carried out on target sub-band in terminal device based on competition or during non-competing random access, the network equipment is because of the reasons such as underloading of target sub-band, the first instruction message that above two format also can be used informs that terminal device is switched to next target sub-band, handoff procedure sub-bands Variation can be found in the associated description that aforementioned first instruction message is random access response, the first instruction message is contention resolved response, and details are not described herein.

2) the first equipment is terminal device, and the second equipment is the network equipment.

Optionally, it is terminal device in the first equipment, in the case that second equipment is the network equipment, terminal device can also include: the network equipment to terminal device the second information of transmission before sending the first instruction message to the network equipment, and the second information includes the corresponding leader sequence of each sub-band in multiple sub-bands.

Wherein, it has been introduced in first embodiment of the method for the application about the corresponding leader sequence of each sub-band in multiple sub-bands, has specifically referred to relevant description in above-mentioned steps S401, details are not described herein.

Optionally, it is terminal device in the first equipment, in the case that second equipment is the network equipment, it can also include: the network equipment to the terminal device transmission first information that terminal device, which sends the first instruction message before to the network equipment, and the first information includes the sub-band information of multiple sub-bands.

Wherein, it has been introduced in first embodiment of the method for the application about the sub-band information in multiple sub-bands, has specifically referred to relevant description in above-mentioned steps S401, details are not described herein.

After terminal device receives the sub-band information of multiple sub-bands, it can determine target sub-band from multiple sub-bands according to sub-band information, and progress random access is wished on the target sub-band by the first instruction message informing network equipment terminal device or is worked on the target sub-band.

Optionally, it is terminal device in the first equipment, in the case that second equipment is the network equipment, terminal device can also include: the network equipment to terminal device transmission third information before sending the first instruction message to the network equipment, and third information includes the channel indicating information of the random access channel of multiple sub-bands.

Wherein, it has been introduced in first embodiment of the method for the application about channel indicating information, has specifically referred to relevant description in above-mentioned steps S401, details are not described herein.

After the channel indicating information for getting the random access channel of multiple sub-bands, terminal device sends the first instruction message in the corresponding random access channel of target sub-band.

In one possible implementation, RACH only has one, and all sub-bands correspond to a RACH, then terminal device sends the first instruction message on the RACH.

In alternatively possible implementation, RACH has multiple, and target sub-band corresponds to multiple RACH, such as target sub-band is the sub-band 5 in Fig. 7 a, then terminal device can send the first instruction message on any one corresponding RACH of target sub-band.

In optional way, the above-mentioned first information, the second information, third information can be broadcast message, are carried in MIB, SIB1 or SIB2 and are sent to terminal device.

First instruction message can be leader sequence reporting message Msg1, sub-band instruction can be leader sequence, wherein, first instruction message be leader sequence reporting message Msg1 be suitable for it is above-mentioned the first, the scene of second and the 4th kind random access, there are corresponding relationships before leader sequence and sub-band, the network equipment is after receiving preamble sequences reporting message Msg1, it determines that target sub-band is the active sub-bands of terminal device, is switched on target sub-band to terminal device and sends random access response Msg2.

Sub-band variation in the case that citing below comes to the first instruction message is leader sequence reporting message Msg1 in three kinds of random access scenes is illustrated, referring to Figure 13 a- Figure 13 c.

Figure 13 a is the contrast schematic diagram for being directed to the variation of sub-band of the first random access scene, as shown, one In kind optinal plan, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 are transmitted on the RACH on a frequency band；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 on the RACH of the first sub-band, leader sequence corresponding with target sub-band is carried in leader sequence reporting message Msg1, after the network equipment receives leader sequence reporting message Msg1, target sub-band is determined according to leader sequence, the network equipment sends random access response Msg2 to terminal device on target sub-band, terminal device sending device on target sub-band identifies reporting message Msg3, and the network equipment sends contention resolved response Msg4 on target sub-band.

Figure 13 b is the contrast schematic diagram for being directed to the variation of sub-band of second of random access scene, as shown, leader sequence reporting message Msg1, random access response Msg2 are transmitted on the RACH on a frequency band in a kind of optinal plan；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 on the RACH of the first sub-band, after the network equipment receives leader sequence reporting message Msg1, target sub-band is determined according to leader sequence, the network equipment sends random access response Msg2 to terminal device on target sub-band, terminal device works on the target sub-band, for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

Figure 13 c is the contrast schematic diagram for being directed to the variation of sub-band of the 4th kind of random access scene, as shown in the figure, in a kind of optinal plan, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3 are transmitted on the RACH on a frequency band；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 and device identification reporting message Msg3 on the RACH of the first sub-band, after the network equipment receives leader sequence reporting message Msg1, target sub-band is determined according to leader sequence, the network equipment sends random access response Msg2 to terminal device on target sub-band, terminal device works on the target sub-band, for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

First instruction message may be device identification reporting message Msg3, sub-band instruction can be sub-band mark or frequency domain coverage area, wherein, first instruction message is the scene that device identification reporting message Msg3 is suitable for above-mentioned the first and the 4th kind of random access, and the network equipment determines that target sub-band is the active sub-bands of terminal device after receiving device identification reporting message Msg3.

Sub-band variation in the case that citing below comes to the first instruction message is device identification reporting message Msg3 in the first and the 4th kind of random access scene is illustrated, referring to Figure 14 a and Figure 14 b.

Figure 14 a is the contrast schematic diagram for being directed to the variation of sub-band of the first random access scene, as shown in the figure, in a kind of optinal plan, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3, contention resolved response Msg4 are transmitted on the RACH on a frequency band；Using the scheme of the embodiment of the present application, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3 are transmitted on the first sub-band, after the network equipment receives device identification reporting message Msg3, it is indicated to determine target sub-band according to sub-band, the network equipment sends contention resolved to terminal device on target sub-band and responds Msg4, terminal device works on the target sub-band for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

Figure 14 b is the contrast schematic diagram for being directed to the variation of sub-band of the 4th kind of random access scene, as shown in the figure, in a kind of optinal plan, leader sequence reporting message Msg1, random access response Msg2, device identification reporting message Msg3 are transmitted on the RACH on a sub-band；Using the scheme of the embodiment of the present application, terminal device sends leader sequence reporting message Msg1 and device identification reporting message Msg3 on the RACH of the first sub-band, and the network equipment, which receives, to be set After standby mark reporting message Msg3, it is indicated to determine target sub-band according to sub-band, the network equipment sends random access response Msg2 to terminal device on target sub-band, terminal device works on the target sub-band, for example, terminal device monitors the scheduling informations such as the PDCCH of network equipment transmission on the target sub-band.

In alternate embodiments, first instruction message is that leader sequence reporting message or device identification reporting message apply also for the third random access scene, the PDCCH order of network equipment transmission and determining is received in terminal device to re-start based on competition or when non-competing random access, terminal device, which needs to be switched to, carries out random access on another sub-band, then terminal device can be by sending the first instruction message to the network equipment, the network equipment is told to be communicated on target sub-band with terminal device, wherein, it is leader sequence reporting message that the variation of handoff procedure sub-bands, which can be found in aforementioned first instruction message, first instruction message is the associated description of device identification reporting message, details are not described herein.

It is in the case that the second equipment of terminal device is the network equipment in the first equipment, the method for the embodiment of the present application applies also for above-mentioned the third and is directed to sub-band division and sub-band scheme corresponding with RACH's.

In alternative embodiments, the first information that terminal device can be sent according to the network equipment, the case where second information and third information determine each sub-band, using comparatively idle or access the higher sub-band of success rate as target sub-band, then determine that the RACH of target sub-band carries out random access, in the third above-mentioned scheme, the corresponding RACH of target sub-band also corresponds to other sub-bands, then terminal device sends the first instruction message on the corresponding RACH of target sub-band, sub-band instruction is carried in first instruction message, the network equipment can be made to know the active sub-bands of the target sub-band terminal device.During subsequent communications, terminal device is communicated with the network equipment by the target sub-band, and terminal device can refer to the schematic diagram of the scheme using application embodiment in above-mentioned Figure 13 a~Figure 13 c or Figure 14 to scene, that is, sub-band variation that the network equipment sends the first instruction message.

In the embodiment of the present application, in the case where only one RACH, first equipment sends the first instruction message to the second equipment, sub-band instruction is carried in first instruction message, second equipment is after receiving sub-band instruction, it is above communicated with the first equipment in sub-band instruction, RACH can be occupied for a long time to avoid terminal device by switching sub-band in time；The first instruction message of the application can be PDCCH order, when terminal device loses synchronous needs progress random access again with the network equipment, the sub-band of access can be switched, can make the load balancing of each sub-band to a certain extent.In the case where there is multiple RACH, the first equipment is terminal device, and the second equipment is the network equipment, and the first equipment, which sends the first instruction message to the second equipment, can make the first equipment know the active sub-bands of the second equipment, help to realize the reasonable distribution to resource.

It is above-mentioned to illustrate the method for the embodiment of the present application, the device of the embodiment of the present application is provided below.

Referring to Figure 15, Figure 15 is the structural schematic diagram of the system of the first equipment and the second equipment composition provided by the embodiments of the present application, as shown in the figure, there is communication connection mutually between the two in the first equipment 70, the second equipment 80, such as wifi connection, mobile data cube computation etc., it can be achieved that the two mutual data communication.The unit of first equipment and the second equipment can implement application scheme by the combination of hardware, software or hardware and software.Those skilled in the art will appreciate that unit described in figure can be combined or be separated into several subelements to implement application scheme.Therefore, descriptions above can be supported to following single-ended any possible combinations or separation or further definition in the application.

Wherein, the first equipment can be with terminal device, or the network equipment；In the case where the first equipment is terminal device, the second equipment is the network equipment；In the case where the first equipment is the network equipment, the first equipment is terminal device.

As shown, first equipment 70 can include:

Transmission unit 710, for sending the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate the second equipment and receives the signal that first equipment is sent in the target sub-band or send signal to first equipment；

The transmission unit 710 is also used to send signal to second equipment in the target sub-band；

Receiving unit 720, for receiving the signal that second equipment is sent in the target sub-band.

Optionally, target sub-band can be the sub-band in multiple sub-bands, if the first equipment is terminal device, the receiving unit 720, it is also used to receive the first information of the second equipment transmission, the first information includes the corresponding leader sequence of each sub-band in the multiple sub-band.

Optionally, the target sub-band is the sub-band in multiple sub-bands, if the first equipment is terminal device, the receiving unit 720 is also used to: receiving the second information that the second equipment is sent, second information includes the sub-band information of the multiple sub-band.

Optionally, target sub-band is the sub-band in multiple sub-bands, if the first equipment is terminal device, the receiving unit 720 is also used to: receiving the third information that the second equipment is sent, the third information includes the channel indicating information of the random access channel of multiple sub-bands；First equipment to the second equipment sends the first instruction message, and to include: the first equipment send the first instruction message to the second equipment in the corresponding random access channel of the target sub-band.

As shown in figure 15, the second equipment 80 can include:

Receiving unit 810, receives the first instruction message that the first equipment is sent, and first instruction message carries sub-band instruction corresponding with target sub-band；

The receiving unit 810 is also used to receive the signal that first equipment is sent in target sub-band；

Transmission unit 820, for sending signal to first equipment in target sub-band.

Optionally, target sub-band can be the sub-band in multiple sub-bands, if the second equipment is the network equipment, the then transmission unit 820, it is also used to send the first information to the first equipment, wherein the first information includes the corresponding leader sequence of each sub-band in multiple sub-bands.

Optionally, target sub-band is the sub-band in multiple sub-bands, if the second equipment is the network equipment, the transmission unit 820 is also used to: the first equipment sends the second information, and second information includes the sub-band information of each sub-band in the multiple sub-band.

Optionally, target sub-band is the sub-band in multiple sub-bands, if the second equipment is the network equipment, the transmission unit 820 is also used to: sending third information to the first equipment, the third information includes the channel indicating information of the random access channel of multiple sub-bands；Receiving unit 810 is specifically used for: receiving the first instruction message that the first equipment is sent in the corresponding random access channel of the target sub-band.

Optionally, when the first equipment is terminal device and second equipment is the network equipment, first instruction message be also used to indicate the target sub-band be the first equipment active sub-bands, i.e., target sub-band be terminal device active sub-bands.

Optionally, the first equipment is the network equipment and when the second equipment is terminal device, and the first instruction message can be random access response；First instruction message may be contention resolved response；First instruction message may be downlink control command.When first equipment is terminal device and the second equipment is the network equipment, the first instruction message can be device identification reporting message；First instruction message can also be leader sequence reporting message.

Optionally, sub-band information can be at least one of bandwidth, frequency domain position, frequency domain or channel loading parameter Information.

Optionally, channel loading parameter can be the access probability of sub-band；Channel loading parameter may be the load instruction of sub-band；Channel loading parameter may be the access probability of the corresponding random access channel of sub-band；Channel loading parameter can also indicate for the load of the corresponding random access channel of sub-band.

Optionally, channel loading parameter can be the ratio of the quantity for the first equipment that the quantity for the first equipment that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the first equipment that the quantity for the second equipment that sub-band is currently accessed allows to access with the second equipment；Channel loading parameter may be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter can also be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range；The numerical value that channel loading parameter obtains after can also being weighted for above-mentioned several numerical value；Channel loading parameter can also be the sequence number obtained to above-mentioned several numerical value using modes such as sequences.

Optionally, channel indicating information includes starting frequency domain position or frequency domain coverage area.

Optionally, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, i.e., the set of multiple leader sequences；It may be the corresponding leader sequence Serial Number Range of each sub-band, i.e., the set of the number of multiple leader sequences.

Optionally, sub-band instruction includes sub-band mark, frequency domain coverage area or leader sequence.In the case where the first instruction message is leader sequence reporting message, sub-band instruction can be leader sequence；In the case where the first instruction message is contention resolved response, downlink control command, random access response or device identification reporting message, sub-band instruction can be sub-band mark or frequency domain coverage area.

It is to be appreciated that in the corresponding embodiment of Figure 15 unmentioned content and each unit specific implementation, please refer to embodiment in method shown in Fig. 9, which is not described herein again.

In system described in Figure 15, first equipment is by sending the first instruction message to the second equipment, sub-band instruction corresponding with target sub-band is carried in first instruction message, it is communicated so that the second equipment switches or accesses on target sub-band with the first equipment, the sub-band communicated between the first equipment and the second equipment can be adjusted in time, realize the load balancing between sub-band.

Referring to Figure 16, Figure 16 is the structural schematic diagram of the system of the network equipment and terminal device composition provided by the embodiments of the present application, as shown in the figure, there is communication connection mutually between the two in the network equipment 90, terminal device 100, such as wifi connection, mobile data cube computation etc., it can be achieved that the two mutual data communication.The unit of the network equipment and terminal device can implement application scheme by the combination of hardware, software or hardware and software.Those skilled in the art will appreciate that unit described in figure can be combined or be separated into several subelements to implement application scheme.Therefore, descriptions above can be supported to following single-ended any possible combinations or separation or further definition in the application.

As shown in figure 16, the network equipment 90 can include:

Transmission unit 910, the 4th information is sent to terminal device, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；

Receiving unit 920, the random access request sent for listening to the terminal device in the corresponding random access channel of each sub-band at least one described sub-band.

As shown in figure 16, the terminal device 100 can include:

Receiving unit 1010, for receiving the 4th information of network equipment transmission, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；

Processing unit 1020, for accessing target sub-band, wherein the target sub-band is the sub-band at least one described sub-band.

Optionally, channel loading parameter can be the access probability of sub-band；Channel loading parameter may be the load instruction of sub-band；Channel loading parameter can also be the access probability of the corresponding random access channel of sub-band；Channel loading parameter can also indicate for the load of the corresponding random access channel of sub-band.

Optionally, channel loading parameter can be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the sub-band；Channel loading parameter may be the ratio of the quantity for the terminal device that the quantity for the terminal device that sub-band is currently accessed allows to access with the network equipment；Channel loading parameter can also be duty ratio of the sub-band in past one section of preset time range；Channel loading parameter can also be sub-band in the duty ratio and the ratio of the sub-band of largest duty cycle in past one section of preset time range in past one section of preset time range；The numerical value that channel loading parameter obtains after can also being weighted for above-mentioned several numerical value；Channel loading parameter can also be the sequence number obtained to above-mentioned several numerical value using modes such as sequences.

Optionally, channel indicating information includes starting frequency domain position or frequency domain coverage area.

Optionally, sub-band instruction includes sub-band mark, frequency domain coverage area or leader sequence.

Optionally, the corresponding leader sequence of each sub-band can be the corresponding leader sequence group of each sub-band, i.e., the set of multiple leader sequences；It may be the corresponding leader sequence Serial Number Range of each sub-band, i.e., the set of the number of multiple leader sequences.

It is to be appreciated that in the corresponding embodiment of Figure 16 unmentioned content and each unit specific implementation, please refer to embodiment in method shown in Fig. 8, which is not described herein again.

In system described in Figure 16, the network equipment can send the various information of multiple sub-bands to terminal device, and terminal device can be accessed from multiple sub-bands in more appropriate target sub-band, can guarantee the load balancing of each sub-band to a certain extent.

A kind of implementation of the network equipment involved in the system of Figure 15 or 16 is described below, referring to Figure 17, Figure 17 is a kind of hardware structural diagram of network equipment provided by the present application, wherein, the network equipment 110 includes processor 1101, memory 1102, transceiver 1102, and the processor 1101, the memory 1102, the transceiver 1102 pass through one or more communication bus 1104 and connect.

Processor 1101 is configured as the corresponding function of supporting the network equipment to execute Fig. 8 or Fig. 9 the method.The processor 1101 can be central processing unit (central processing unit, CPU), network processing unit (network processor, NP), hardware chip or any combination thereof.Above-mentioned hardware chip can be specific integrated circuit (application-specific integrated circuit, ASIC), programmable logic device (programmable logic device, PLD) or combinations thereof.Above-mentioned PLD can be Complex Programmable Logic Devices (complex programmable logic device, CPLD), field programmable gate array (field-programmable gate array, FPGA), Universal Array Logic (generic array logic, GAL) or any combination thereof.

Memory 1102 is for storing program code etc..Memory 1102 may include volatile memory (volatile memory), such as random access memory (random access memory, RAM)；Memory 1102 also may include nonvolatile memory (non-volatile memory), such as read-only memory (read-only memory, ROM), flash memory (flash memory), hard disk (hard disk drive,) or solid state hard disk (solid-state drive, SSD) HDD；Memory 1102 can also include the combination of the memory of mentioned kind.

Transceiver 1103 is for sending and receiving data.

Processor 1101 can call said program code to execute following operation:

The first instruction message is sent to terminal device by transceiver 1103, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate the terminal device and receives the signal that the network equipment is sent in the target sub-band or send signal to the network equipment；

Signal is sent to the terminal device in the target sub-band by transceiver 1103 or receives the signal of the terminal device transmission.

The processor 1101 may call upon program code to execute following operation:

The 4th information is sent to terminal device by transceiver 1103, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；The random access request of terminal device transmission is listened in the corresponding random access channel of each sub-band at least one described sub-band by transceiver 1103.

It should be noted that the processor 1101 can also be performed referring to the operation that the network equipment executes in Fig. 8 or method shown in Fig. 9.

The embodiment of the present application also provides a kind of computer storage medium, the computer storage medium is stored with computer program, the computer program includes program instruction, described program instruction makes the computer execute the method as described in the corresponding embodiment of Fig. 8 or Fig. 9 when executed by a computer, and the computer can be a part of the network equipment mentioned above.

The embodiment of the present application also provides a kind of computer program, including program instruction, when executed by a computer for executing the method as described in the corresponding embodiment of Fig. 8 or Fig. 9, the computer program can be a part in the program of the storage of memory 1102 mentioned above for described program instruction.

A kind of implementation of terminal device involved in the system of Figure 15 or 16 is described below, referring to Figure 18, Figure 18 is a kind of structural block diagram of implementation of terminal device provided by the present application, as shown in figure 18, terminal device 130 can include: baseband chip 1310, memory 1315 (one or more computer readable storage mediums), radio frequency (RF) module 1316, peripheral system 1317.These components can communicate on one or more communication bus 1313.

Peripheral system 1317 is mainly used for realizing the interactive function between terminal device 130 and user/external environment, and main includes the input/output unit of terminal device 130.In the specific implementation, peripheral system 1317 can include: camera controller 1318, Audio Controller 1319 and sensor management module 1320.Wherein, each controller can be coupled with corresponding peripheral equipment (such as camera 1321, voicefrequency circuit 1322 and sensor 1323).In some embodiments, camera 1321 can be 3D camera.In some embodiments, sensor 1323 can be infrared sensor, fingerprint sensor, displacement sensor, energy consumption sensor, temperature sensor, humidity sensor, optical sensor etc..It should be noted that, peripheral system 1317 can also include other I/O peripheral hardwares, for example, peripheral system 1317 further includes radio frequency identification (Radio Frequency Identification, RFID) read-write controller 1324, wherein, RFID read-write controller and RFID read-write Device 1325 couples.

It includes: processor 1311, clock module 1312 and power management module 1313 that baseband chip 1310, which can integrate,.The clock module 1312 being integrated in baseband chip 1310 is mainly used for generating clock required for data transmission and timing control for processor 1311.The power management module 1313 being integrated in baseband chip 1310 is mainly used for providing stable, pinpoint accuracy voltage for processor 1311, radio-frequency module 1316 and peripheral system 1317.In some embodiments, the processor/can be central processing unit (Center Processor Unit, CPU), embedded microcontroller (Micro Controller Unit, MCU), embedded microprocessor (Micro Processor Unit, MPU), Embedded SoC (System on Chip, SoC) etc..

Radio frequency (RF) module 1316 is mainly integrated with the receiver and transmitter of terminal device 130 for sending and receiving radiofrequency signal.Radio frequency (RF) module 1316 passes through radiofrequency signal and communication network and other communication apparatus communications.In the specific implementation, radio frequency (RF) module 1316 may include but be not limited to: at least one eUICC, antenna system, RF transceiver, one or more amplifiers, tuner, one or more oscillators, digital signal processor, CODEC chip, storage medium etc..In some embodiments, radio frequency (RF) module 1316 can be realized on a separate chip, in the application, radio-frequency module is used to send the first instruction message to the network equipment under the instruction of processor.

Memory 1315 is coupled with processor 1311, for storing various software programs and/or multiple groups order.In the specific implementation, memory 1315 may include the memory of high random access, and it may also comprise nonvolatile memory, such as one or more disk storage equipments, flash memory device or other non-volatile solid-state memory devices.Memory 1315 can store an operating system (following abbreviation systems), such as the embedded OSs such as ANDROID, IOS, WINDOWS or LINUX.Memory 1315 can also store network communication program, which can be used for and one or more optional equipments, one or more terminal devices, one or more network equipments are communicated.Memory 1315 can also store user interface program, the user interface program can be shown by patterned operation interface by the content image of application program is true to nature, and received user by input controls such as menu, dialog box and keys and operated to the control of application program.Memory 1315 can also be stored including one or more application program.

The embodiment of the present application also provides a kind of computer storage medium, the computer storage medium is stored with computer program, the computer program includes program instruction, described program instruction makes the computer execute the method as described in the corresponding embodiment of Fig. 8, Fig. 9 when executed by a computer, and the computer can be a part of terminal device mentioned above.

The embodiment of the present application also provides a kind of computer program, including program instruction, when executed by a computer for executing the method as described in the corresponding embodiment of 8 or Fig. 9, the computer program can be a part in the program of the storage of memory 1315 mentioned above for described program instruction.

Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, it is that relevant hardware can be instructed to complete by computer program, the program can be stored in a computer-readable storage medium, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM) etc..

The step of method in conjunction with described in the disclosure of invention or algorithm, can be realized in a manner of hardware, be also possible to execute the mode of software instruction by processor to realize.Software instruction can be made of corresponding software module, and software module can be stored in the storage medium of RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, mobile hard disk, CD-ROM or any other form well known in the art.It is a kind of Illustrative storage medium is coupled to processor, to enable a processor to from the read information, and information can be written to the storage medium.Certainly, storage medium is also possible to the component part of processor.Pocessor and storage media can be located in ASIC.In addition, the ASIC can be located in user equipment.Certainly, pocessor and storage media can also be used as discrete assembly and be present in user equipment.

It will be appreciated that in said one or multiple examples, function described in the invention can be realized those skilled in the art with hardware, software, firmware or their any combination.When implemented in software, these functions can be stored in computer-readable medium or as on computer-readable medium one or more instructions or code transmit.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to any medium of another place transmission computer program.Storage medium can be any usable medium that general or specialized computer can access.

Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effects are had been further described; it should be understood that; the foregoing is merely a specific embodiment of the invention; it is not intended to limit the scope of protection of the present invention; all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done should all include within protection scope of the present invention.

Claims (28)

1. A kind of accidental access method characterized by comprising

   First equipment sends the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate second equipment and receives the signal that first equipment is sent in the target sub-band or send signal to first equipment；

   First equipment sends signal to second equipment in the target sub-band or receives the signal of the second equipment transmission.
2. The method as described in claim 1, which is characterized in that first instruction message is random access response；Or

   First instruction message is contention resolved response；Or

   First instruction message is downlink control command；Or

   First instruction message is device identification reporting message；Or

   First instruction message is leader sequence reporting message.
3. It is method according to claim 1 or 2, which is characterized in that the target sub-band is the sub-band in multiple sub-bands, and first equipment is sent to the second equipment before the first instruction message further include:

   First equipment receives the first information that second equipment is sent, and the first information includes the corresponding leader sequence of each sub-band in the multiple sub-band.
4. The method according to claim 1, which is characterized in that first equipment is terminal device, and second equipment is the network equipment, and first instruction message is also used to indicate that the target sub-band is the active sub-bands of first equipment.
5. Method according to any of claims 1-4, which is characterized in that the target sub-band is the sub-band in multiple sub-bands, and first equipment is sent to the second equipment before the first instruction message further include:

   First equipment receives the second information that second equipment is sent, and second information includes the sub-band information of the multiple sub-band.
6. The method according to claim 1 to 5, which is characterized in that the target sub-band is the sub-band in multiple sub-bands, and first equipment is sent to the second equipment before the first instruction message further include:

   First equipment receives the third information that second equipment is sent, and the third information includes the channel indicating information of the random access channel of multiple sub-bands；

   First equipment sends the first instruction message to the second equipment

   First equipment sends the first instruction message to second equipment in the corresponding random access channel of the target sub-band.
7. Method as claimed in claim 6, which is characterized in that the channel indicating information includes starting frequency domain position or frequency domain coverage area.
8. Such as the described in any item methods of claim 5-7, which is characterized in that the sub-band information includes:

   Bandwidth, frequency domain position, frequency domain or channel loading parameter.
9. Method according to claim 8, which is characterized in that the channel loading parameter includes:

   The access probability of sub-band；Or

   The load of sub-band indicates；Or

   The access probability of the corresponding random access channel of sub-band；Or

   The load of the corresponding random access channel of sub-band indicates.
10. Such as the described in any item methods of claim 1-9, which is characterized in that the sub-band instruction includes sub-band mark, frequency domain coverage area or leader sequence.
11. A kind of accidental access method characterized by comprising

    Second equipment receives the first instruction message that the first equipment is sent, and first instruction message carries sub-band instruction corresponding with target sub-band；

    Second equipment receives the signal that first equipment is sent in the target sub-band or sends signal to first equipment.
12. Method as claimed in claim 11, which is characterized in that first instruction message is random access response；Or

    First instruction message is contention resolved response；Or

    First instruction message is downlink control command；Or

    First instruction message is device identification reporting message；Or

    First instruction message is leader sequence reporting message.
13. Method as described in claim 11 or 12, which is characterized in that the target sub-band is the sub-band in multiple sub-bands, and second equipment receives before the first instruction information that the first equipment is sent further include:

    Second equipment sends the first information to first equipment, wherein the first information includes the corresponding leader sequence of each sub-band in multiple sub-bands.
14. Such as the described in any item methods of claim 11-13, which is characterized in that the target sub-band is the sub-band in multiple sub-bands, and second equipment receives before the first instruction message that the first equipment is sent further include:

    Second equipment sends the second information to first equipment, and second information includes the sub-band information of each sub-band in the multiple sub-band.
15. Such as the described in any item methods of claim 12-14, which is characterized in that the target sub-band is the sub-band in multiple sub-bands, and second equipment receives before the first instruction information that first equipment is sent further include:

    Second equipment sends third information to first equipment, and the third information includes the channel indicating information of the random access channel of multiple sub-bands；

    Second equipment receives the first instruction message that first equipment is sent

    Second equipment receives the first instruction message that first equipment is sent in the corresponding random access channel of the target sub-band.
16. A kind of accidental access method characterized by comprising

    The network equipment sends the 4th information to terminal device, and the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；

    The network equipment listens to the random access request that the terminal device is sent in the corresponding random access channel of each sub-band at least one described sub-band.
17. The method described in claim 16, which is characterized in that the sub-band information includes:

    Bandwidth, frequency domain position, frequency domain or channel loading parameter.
18. Method as claimed in claim 17, which is characterized in that the channel loading parameter includes:

    The access probability of sub-band；Or

    The load of sub-band indicates；Or

    The access probability of the corresponding random access channel of sub-band；Or

    The load of the corresponding random access channel of sub-band indicates.
19. A kind of accidental access method characterized by comprising

    Terminal device receives the 4th information that the network equipment is sent, and the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the leader sequence at least one sub-band or at least one sub-band；

    The terminal device accesses target sub-band, wherein the target sub-band is the sub-band at least one described sub-band.
20. Method as claimed in claim 19, which is characterized in that the terminal device accesses target sub-band and includes:

    The terminal device carries out random access in the corresponding random access channel of the target sub-band.
21. A kind of equipment, which is characterized in that including processor and transceiver,

    The processor is used to indicate the transceiver and receives or sends data；

    The transceiver, for sending the first instruction message to the second equipment, first instruction message carries sub-band instruction corresponding with target sub-band, and first instruction message is used to indicate second equipment and receives the signal that the equipment is sent in the target sub-band or send signal to the equipment；

    The transceiver is also used to send signal to second equipment in the target sub-band or receives the signal that second equipment is sent.
22. A kind of equipment, which is characterized in that including processor and transceiver,

    The processor is used to indicate the transceiver and receives or sends data；

    The transceiver, for receiving the first instruction message of the first equipment transmission, first instruction message carries sub-band instruction corresponding with target sub-band；

    The transceiver is also used to receive the signal that first equipment is sent in the target sub-band or sends signal to the first equipment.
23. A kind of network equipment, which is characterized in that including processor and transceiver,

    The processor is used to indicate the transceiver and receives or sends data；

    The transceiver, for sending the 4th information to terminal device, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；

    The transceiver is also used to listen to the random access request that the terminal device is sent in the corresponding random access channel of each sub-band at least one described sub-band.
24. A kind of terminal device, which is characterized in that including processor and transceiver,

    The processor is used to indicate the transceiver and receives or sends data；

    The transceiver, for receiving the 4th information of network equipment transmission, the 4th information includes the channel indicating information of the random access channel of the sub-band information of at least one sub-band, the corresponding leader sequence of each sub-band at least one sub-band or at least one sub-band；

    The processor is also used to access target sub-band by the transceiver, wherein the target sub-band is the sub-band at least one described sub-band.
25. A kind of computer storage medium, it is characterized in that, the computer storage medium is stored with computer program, and the computer program includes program instruction, and described program instruction makes the computer execute such as the described in any item methods of claim 1-10 when executed by a computer.
26. A kind of computer storage medium, it is characterized in that, the computer storage medium is stored with computer program, and the computer program includes program instruction, and described program instruction makes the computer execute such as the described in any item methods of claim 11-15 when executed by a computer.
27. A kind of computer storage medium, it is characterized in that, the computer storage medium is stored with computer program, and the computer program includes program instruction, and described program instruction makes the computer execute such as the described in any item methods of claim 16-18 when executed by a computer.
28. A kind of computer storage medium, it is characterized in that, the computer storage medium is stored with computer program, and the computer program includes program instruction, and described program instruction makes the computer execute the method as described in claim 19 or 20 when executed by a computer.