CN107969034B

CN107969034B - UE, method and device for random access in base station

Info

Publication number: CN107969034B
Application number: CN201610916731.XA
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-10-20
Filing date: 2016-10-20
Publication date: 2020-02-18
Anticipated expiration: 2036-10-20
Also published as: CN107969034A; WO2018072605A1

Abstract

The invention discloses a method and a device for random access in UE (user equipment) and a base station. The UE firstly sends a first wireless signal; then receiving a first signaling; the second wireless signal is then transmitted. Wherein the first wireless signal comprises X1 first sub-signals and the second wireless signal comprises X2 second sub-signals. The first sub-signals are generated by a signature sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information includes at least one of { RRC connection request, tracking area update, scheduling request, ID of the UE, random number, and downlink antenna port group }. The first signaling is used to determine X2 first sub-signals of the X1 first sub-signals, the time-frequency resources and antenna port groups of the X2 second sub-signals being related to the X2 first sub-signals. The method disclosed by the invention can support spatial multiplexing of uplink random access, can avoid the problem of random access ambiguity and improve the random access performance.

Description

UE, method and device for random access in base station

Technical Field

The present application relates to transmission schemes in wireless communication systems, and more particularly, to methods and apparatus for random access.

Background

In the future, the application scenes of the wireless communication system are more and more diversified, and different application scenes put different performance requirements on the system. In order to meet different performance requirements of various application scenarios, research on a New air interface technology (NR, New Radio) is decided in #72 global meetings of 3GPP (3rd Generation partnership project) RAN (Radio Access Network).

Large-scale (Massive) MIMO becomes a research hotspot of the next generation mobile communication system NR. In massive MIMO, multiple antennas form a narrow beam pointing in a specific direction by beamforming to improve communication quality. The beam formed by multi-antenna beamforming is generally narrow, and both communication parties need to obtain partial channel information of the other party to enable the formed beam to point to the correct direction. Before both communication parties obtain partial channel information of the other party, or when the previously obtained partial channel information has failed, the transmitting end and the receiving end need to use a larger redundancy to ensure correct reception of the transmitted signal, for example, a Beam Sweeping (Beam Sweeping) scheme, in which the transmitting end transmits the same signal multiple times in a TDM (time division multiplexing) manner, each time transmits a Beam for a different direction, and the receiving end uses a different receiving Beam to select an appropriate signal from the repeated signals. In a process of initiating an initial random access by a user equipment (for example, a random access based on collision), when there is no mutual benefit (reliability) between uplink and downlink beams, that is, a transmit beam cannot be determined by a receive beam, or a receive beam is determined by a transmit beam, both the user equipment and a base station equipment need to adopt beam sweeping to ensure correct reception of a random access channel.

Disclosure of Invention

In the process of initial random access, two (or more) different User Equipments (UEs) initiate a random access request to a base station in a contention manner, and if at least two UEs select the same Preamble sequence (Preamble) and in the process of beam sweeping for Preamble transmission, the base station may receive the same Preamble from two or more different times, which may cause that the base station cannot determine whether the same Preamble is from the same user equipment or different user equipments, thereby causing a deviation or ambiguity of information carried by a random access response (Msg2), Msg3 and a collision resolution (Msg4) in subsequent steps of random access. Especially, when the base station receives a plurality of identical preambles on different beams, the user equipments sending the preambles may all be successfully accessed because the spatial multiplexing does not collide, but only one of the user equipments sending the identical preambles in the same time-frequency resource may be successfully accessed finally based on the existing random access mode, such as the random access mode in LTE (Long Term Evolution). If the existing (e.g. LTE) random access method is used, the base station makes an incorrect collision resolution decision due to the above ambiguity, or the resource waste and the increase of the random access delay are caused.

The method and the device solve the problems of collision ambiguity and resource waste caused by adopting beam sweeping in the random access process. By adopting the solution of the application, the ambiguity caused by beam sweeping is solved by supporting multi-beam transmission of Msg2, Msg3 or Msg4 in the random access process and associating the beam information of each step, and the random access multiplexing of the space is supported, so that the performance of the random access is improved. It should be noted that, without conflict, the embodiments and features in the embodiments in the UE (User Equipment) of the present application may be applied to the base station, and vice versa. Further, the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.

The application discloses a method used in UE of random access, wherein, comprising the following steps:

-step a. transmitting a first wireless signal;

-step b. receiving a first signalling;

-step c.

Wherein the first wireless signal comprises X1 first sub-signals and the second wireless signal comprises X2 second sub-signals. The X1 is an integer greater than or equal to the X2, and the X2 is a positive integer. The first sub-signals are generated by a signature sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information includes at least one of { RRC connection request, tracking area update, scheduling request, ID of the UE, random number, and downlink antenna port group }. The first signaling is used to determine X2 first sub-signals from the X1 first sub-signals, the configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of { occupied time domain resource, occupied frequency domain resource, corresponding antenna port group }, the antenna port group includes 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port group.

As an embodiment, the transmission of the X2 second sub-signals in different uplink beams (beams) may solve the collision problem caused by different UEs all transmitting the same signature sequence. And furthermore, a plurality of UEs in different uplink beams can successfully complete the random access request at the same time.

As an embodiment, the ID of the UE is an integer.

As an embodiment, the ID of the UE is TMSI (Temporary Mobile subscriber identity).

As an embodiment, the ID of the UE is an IMSI (International Mobile subscriber identity).

As an embodiment, the random number is an integer of P bits, and P is a positive integer. As a sub-embodiment, P is equal to 40.

As one embodiment, the RRC is Radio Resource Control (Radio Resource Control).

As an embodiment, the downlink antenna port group corresponds to an antenna port group detected by the UE and used for transmitting a downlink synchronization signal. As a sub embodiment, the downlink Synchronization Signal is PSS (Primary Synchronization Signal) or SSS (Secondary Synchronization Signal).

As an embodiment, the downlink antenna port group corresponds to an antenna port group detected by the UE to transmit a downlink broadcast signal. As a sub-embodiment, the transmission channel corresponding to the downlink broadcast signal is BCH (broadcast channel). As another sub-embodiment, the Physical Channel corresponding to the downlink Broadcast signal is a PBCH (Physical Broadcast Channel).

As one embodiment, the X1 is greater than the X2.

As one example, the X2 is greater than 1.

As an embodiment, the transmission channel corresponding to the first wireless signal is a Random Access Channel (RACH).

As an embodiment, the Physical Channel of the first wireless signal is a PRACH (Physical random access Channel).

As an example, the signature sequence is a leader sequence (Preamble).

In one embodiment, the signature sequence includes at least one of a { Zadoff-Chu sequence, a pseudo-random sequence }.

As an embodiment, the X1 first sub-signals correspond to the same signature sequence.

As an embodiment, at least two of the X1 first sub-signals correspond to different signature sequences.

As an embodiment, the X1 first sub-signals respectively occupy X1 time intervals, and the X1 time intervals are orthogonal.

As an embodiment, the X1 first sub-signals occupy the same frequency domain resource.

As an embodiment, two first sub-signals of the X1 first sub-signals occupy different frequency domain resources.

As an embodiment, any one of the X1 first sub-signals is generated by the same preamble sequence.

As an embodiment, two wireless sub-signals of the X1 first sub-signals are generated by different preamble sequences.

As an embodiment, the first sub-signal carries downlink antenna port group information.

As an embodiment, the first sub-signal carries the ID of the UE or partial information of the ID of the UE.

As an embodiment, the transmission end time of the first wireless signal is earlier than the transmission start time of the second wireless signal.

As an embodiment, the second sub-signal carries all or part of the information in Msg3(Message 3).

As an embodiment, the first sub-message is Msg 3.

As an embodiment, the first sub information is higher layer information.

As an embodiment, the first sub information is MAC (Media Access Control) layer information.

As an embodiment, the transmission channel corresponding to the second wireless signal is an UL-SCH (Uplink shared channel).

As an embodiment, the Physical Channel of the second wireless signal is a PUSCH (Physical uplink shared Channel).

As an embodiment, the X2 second sub-signals are generated from the same block of bits.

As an embodiment, at least two of the X2 second sub-signals are generated by different bit blocks.

As an embodiment, each of the antenna ports corresponds to an antenna Beam (Beam).

For one embodiment, each of the antenna port groups corresponds to an antenna Beam (Beam).

As an embodiment, any two antenna port groups in the antenna port groups corresponding to the X1 first sub-signals cannot be assumed to be the same.

As an embodiment, any two antenna port groups in the antenna port groups corresponding to the X2 second sub-signals cannot be assumed to be the same.

As an embodiment, the number of antenna ports included in any two antenna port groups of the antenna port groups corresponding to the X1 first sub-signals is the same.

As an embodiment, the number of antenna ports included in any two antenna port groups of the antenna port groups corresponding to the X2 second sub-signals is the same.

As an embodiment, the first signaling includes all or part of information in RAR (Random Access Response).

As an embodiment, the first signaling is MAC layer signaling.

For one embodiment, the correlation means that all or part of the configuration information of one signal can be inferred from the configuration information of another signal.

In particular, according to one aspect of the application, the above method is characterized in that the first subsignal and the associated second subsignal are transmitted by the same antenna port group.

In particular, according to one aspect of the present application, the above method is characterized in that the time domain resources occupied by the first sub-signal are used to determine the time domain resources occupied by the related second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

As an embodiment, the time domain or frequency domain resource occupied by the first sub-signal is associated with the time domain or frequency domain resource occupied by the second sub-signal, so that antenna port groups (i.e., uplink beams) can be distinguished through the resources, and introduction of explicit signaling is avoided.

As an embodiment, the time domain resource occupied by the first sub-signal is delayed by k milliseconds and then is the time domain resource occupied by the second sub-signal, where k is a rational number, and k is a default or configured by higher layer signaling.

As an embodiment, the time domain resource occupied by the first sub-signal is delayed by w time intervals and then is the time domain resource occupied by the second sub-signal, where w is a positive integer, and w is default or configured by higher layer signaling. As a sub-embodiment, one of the time intervals is one subframe (subframe). As another sub-embodiment, one of the time intervals is a radio frame (radio frame). As another sub-embodiment, one of the time intervals is a slot (slot). As another sub-embodiment, one of the time intervals is a sub-slot. As another sub-embodiment, one of the time intervals is a mini-slot.

As an embodiment, the frequency domain resources occupied by the first sub-signal and the frequency domain resources occupied by the second sub-signal are the same.

Specifically, according to an aspect of the present application, the method is characterized in that the step B further includes the steps of:

-step b1. receiving X3 third sub-signals, said X3 being a positive integer.

Wherein the third sub-signal is used to determine at least one of { the position of the X2 first sub-signals in the X1 first sub-signals, X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

As an embodiment, the temporary user identity is an integer.

As an embodiment, the temporary user identity is a C-RNTI (Cell Radio Network temporary identity).

As an embodiment, the Temporary user identity is TC-RNTI (temporal C-RNTI).

As an embodiment, the second information includes all or part of information in RAR (Random Access Response).

As an embodiment, the second information is Media Access Control (MAC) layer signaling.

As an embodiment, the second information is RRC (Radio Resource Control) layer signaling.

As an embodiment, the second information is indicated by the first signaling.

As an embodiment, the second message is Msg 2.

As an embodiment, the third sub-signal carries the second information.

As one embodiment, the receiver of the X1 first sub-signals sends a third wireless signal, the third wireless signal including Y third sub-signals, the X3 third sub-signals being a subset of the Y third sub-signals. The Y is a positive integer greater than or equal to the X3.

As an embodiment, time domain resources occupied by any two of the X3 third sub-signals are orthogonal (i.e. do not overlap).

As an embodiment, the uplink scheduling information is a UL grant (uplink grant).

Specifically, according to an aspect of the present application, the method is characterized in that two third sub-signals exist in the X3 third sub-signals, downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block respectively, and different scrambling sequences are applied to the CRC of the first bit block and the CRC of the second bit block. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

As an embodiment, the scrambling sequence is RA-RNTI.

As an embodiment, the scrambling sequence comprises Q binary bits, Q being a positive integer. As a sub-embodiment, Q is equal to 16.

As an embodiment, the channel Coding is Tail-biting convolutional Coding (TBCC).

As an embodiment, the first bit block and the second bit block are different.

As one embodiment, the CRC (Cyclic Redundancy Check) includes H binary bits, where H is a positive integer, and as a sub-embodiment, H is equal to 16.

As an embodiment, the Downlink scheduling Information is DCI (Downlink Control Information).

Specifically, according to an aspect of the present application, the method is characterized in that the X2 pieces of first sub information are identical.

Specifically, according to an aspect of the present application, the method is characterized in that the first sub information includes specific information, and information other than the specific information in the X2 pieces of first sub information is the same, and the specific information includes at least one of { ID of the UE, random number }.

Specifically, according to an aspect of the present application, the method is characterized in that the step C further includes the steps of:

step c1. receive X4 fourth sub-signals.

Wherein the X4 is a positive integer, the fourth sub-signal is used to determine a contention resolution ID of the UE, the contention resolution ID of the UE comprising one of { core network ID of the UE, the random number }.

As an embodiment, the X4 fourth sub-signals respectively carry X4 second sub-information, the second sub-information being the contention resolution ID of the UE. As a sub embodiment, the X4 second sub information is indicated by MAC layer signaling.

As an embodiment, the fourth sub-signal carries Msg 4.

As one embodiment, the receiver of the X1 first sub-signals sends a fourth wireless signal, the fourth wireless signal comprising Z fourth sub-signals, the X4 fourth sub-signals being a subset of the Z fourth sub-signals. The Z is a positive integer greater than or equal to the X4.

As an embodiment, the core network ID of the UE is TMSI (Temporary Mobile subscriber identity).

As an embodiment, the core network ID of the UE is an IMSI (International mobile subscriber Identity).

The application discloses a method used in a base station for random access, which comprises the following steps:

-step a. monitoring a first wireless signal;

-step b. sending a first signalling;

-step c.

As an embodiment, in the step a, the bs performs coherent monitoring or non-coherent detection on the X1 first sub-signals, and the bs monitors X5 first sub-signals of the X1 first sub-signals, where the X5 is less than or equal to the X1.

-step b1. transmitting a third radio signal.

Wherein the third wireless signal includes Y third sub-signals, Y being a positive integer, the third sub-signals being used to determine at least one of { the position of the X2 first sub-signals in the X1 first sub-signals, X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

As an embodiment, a transmission Channel corresponding to the third wireless signal is a Downlink Shared Channel (DL-SCH).

As an embodiment, the Physical Channel corresponding to the third wireless signal is a Physical Downlink Shared Channel (PDSCH).

As an example, said Y is equal to 1.

For one embodiment, the Y third sub-signals comprise a subset of X3 third sub-signals, and X3 is a positive integer less than or equal to Y.

For one embodiment, the Y third sub-signals are transmitted by Y different antenna port groups (beams).

As an embodiment, two of the Y third sub-signals are transmitted by two identical antenna port groups (beams).

As an embodiment, the Y third sub-signals carry the same information.

Specifically, according to an aspect of the present application, the method is characterized in that two third sub-signals exist in the Y third sub-signals, downlink scheduling information of the two third sub-signals is generated by channel coding through a first bit block and a second bit block respectively, and different scrambling sequences are applied to the CRC of the first bit block and the CRC of the second bit block. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

-a step c1. transmitting a fourth radio signal.

Wherein the fourth wireless signal includes Z fourth sub-signals, Z being a positive integer, the fourth sub-signals being used to determine a contention resolution ID of the UE, the contention resolution ID of the UE including one of { a core network ID of the UE, the random number }.

As an embodiment, a transmission Channel corresponding to the fourth wireless signal is a Downlink Shared Channel (DL-SCH).

As an embodiment, the Physical Channel corresponding to the fourth wireless signal is a Physical Downlink Shared Channel (PDSCH).

As an example, Z is equal to 1.

For one embodiment, the Z fourth sub-signals comprise a subset of X4 fourth sub-signals, and X4 is a positive integer less than or equal to Y.

For one embodiment, the Z fourth sub-signals are transmitted by Z different antenna port groups (beams).

As an embodiment, the Z fourth sub-signals carry the same information.

The application discloses a user equipment used for random access, which comprises the following modules:

-a first sending module: for transmitting a first wireless signal;

-a first receiving module: for receiving a first signaling;

-a first processing module: for transmitting the second wireless signal.

In particular, according to an aspect of the present application, the above user equipment is characterized in that the first sub-signal and the related second sub-signal are transmitted by the same antenna port group.

Specifically, according to an aspect of the present application, the user equipment is characterized in that the time domain resource occupied by the first sub-signal is used to determine the time domain resource occupied by the related second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

Specifically, according to an aspect of the present application, the user equipment is characterized in that the first receiving module is further configured to receive X3 third sub-signals, and X3 is a positive integer. The third sub-signal is used to determine at least one of the positions of the X2 first sub-signals in the X1 first sub-signals, X2 second information. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

Specifically, according to an aspect of the present application, the above user equipment is characterized in that two third sub-signals exist in the X3 third sub-signals, downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block respectively, and different scrambling sequences are applied to a CRC of the first bit block and a CRC of the second bit block. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

Specifically, according to an aspect of the present application, the above-mentioned user equipment is characterized in that the X2 pieces of first sub information are identical.

Specifically, according to an aspect of the present application, the above-mentioned user equipment is characterized in that the first sub information includes specific information, and information other than the specific information in the X2 pieces of first sub information is the same, and the specific information includes at least one of { ID of the UE, random number }.

Specifically, according to an aspect of the present application, the above user equipment is further characterized in that the first processing module is further configured to receive X4 fourth sub-signals, where X4 is a positive integer, and the fourth sub-signals are used to determine a contention resolution ID of the UE, and the contention resolution ID of the UE includes one of { core network ID of the UE, the random number }.

The application discloses a base station device used for random access, which comprises the following modules:

-a second receiving module: for monitoring a first wireless signal;

-a second sending module: for transmitting a first signaling;

-a second processing module: for receiving the second wireless signal.

Specifically, according to an aspect of the present application, the base station apparatus is characterized in that the first sub-signal and the related second sub-signal are transmitted by the same antenna port group.

Specifically, according to an aspect of the present application, the base station device is characterized in that the time domain resource occupied by the first sub-signal is used to determine the time domain resource occupied by the related second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

Specifically, according to an aspect of the present application, the base station apparatus is characterized in that the second transmitting module is further configured to transmit a third wireless signal, the third wireless signal includes Y third sub-signals, Y is a positive integer, and the third sub-signals are used to determine at least one of { the position of the X2 first sub-signals in the X1 first sub-signals, and X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

Specifically, according to an aspect of the present application, the base station apparatus is characterized in that two of the Y third sub-signals exist, downlink scheduling information of the two third sub-signals is generated by channel coding through a first bit block and a second bit block, respectively, and different scrambling sequences are applied to the CRC of the first bit block and the CRC of the second bit block. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

Specifically, according to an aspect of the present application, the base station apparatus is characterized in that the X2 pieces of first sub information are identical.

Specifically, according to an aspect of the present application, the base station apparatus is characterized in that the first sub information includes specific information, and information other than the specific information in the X2 pieces of first sub information is the same, and the specific information includes at least one of { ID of the UE, random number }.

Specifically, according to an aspect of the present application, the base station device is characterized in that the second processing module is further configured to transmit a fourth wireless signal, the fourth wireless signal includes Z fourth sub-signals, where Z is a positive integer, the fourth sub-signals are used to determine a contention resolution ID of the UE, and the contention resolution ID of the UE includes one of { a core network ID of the UE, the random number }.

Compared with the prior art, the main technical advantages of the application are summarized as follows:

the method solves the problem of Preamble ambiguity (from the same user equipment or a plurality of user equipments) caused by beam sweeping in the random access process, and ensures the successful completion of the random access.

Multiple beams transmit Msg2, Msg3 and/or Msg4, and the beams are associated to support spatial random access multiplexing, so that the collision and delay of random access are reduced, and the capacity of random access is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 shows a wireless signal transmission flow diagram according to an embodiment of the application;

FIG. 2 shows a schematic diagram of a first wireless signal according to an embodiment of the present application;

FIG. 3 illustrates a first wireless signal versus second wireless signal diagram according to an embodiment of the present application;

FIG. 4 shows a third wireless signal diagram according to an embodiment of the present application;

fig. 5 shows a schematic diagram of antenna port groups according to an embodiment of the present application;

FIG. 6 shows a block diagram of a processing device in a User Equipment (UE) according to an embodiment of the present application;

fig. 7 shows a block diagram of a processing means in a base station apparatus according to an embodiment of the present application;

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a transmission flow chart of a wireless signal, as shown in fig. 1. In fig. 1, base station N1 is the maintaining base station of the serving cell for UE U2.

For theBase station N1The first wireless signal is monitored in step S11, the third wireless signal is transmitted in step S12, the first signaling is transmitted in step S13, the second wireless signal is received in step S14, and the fourth wireless signal is transmitted in step S15.

For theUE U2The first wireless signal is transmitted in step S21, the X3 third sub-signals are received in step S22, the first signaling is received in step S23, the second wireless signal is transmitted in step S24, and the X4 fourth sub-signals are received in step S25.

In embodiment 1, the first wireless signal includes X1 first sub-signals, and the second wireless signal includes X2 second sub-signals. The X1 is an integer greater than or equal to the X2, and the X2 is a positive integer. The first sub-signals are generated by a signature sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information includes at least one of { RRC connection request, tracking area update, scheduling request, ID of the UE, random number, and downlink antenna port group }. The first signaling is used to determine X2 first sub-signals from the X1 first sub-signals, the configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of { occupied time domain resource, occupied frequency domain resource, corresponding antenna port group }, the antenna port group includes 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port group. The third wireless signal includes Y of the third sub-signals, the Y being a positive integer greater than or equal to X3, the third sub-signals being used to determine at least one of { position of the X2 first sub-signals in the X1 first sub-signals, X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The fourth wireless signal includes Z of the fourth sub-signals, the Z being a positive integer greater than or equal to the X4, the fourth sub-signal being used to determine a contention resolution ID of the UE, the contention resolution ID of the UE including one of { a core network ID of the UE, the random number }.

In sub-embodiment 1 of embodiment 1, the first wireless signal carries Msg 1.

In sub-embodiment 2 of embodiment 1, the second wireless signal carries Msg 3.

In sub-embodiment 3 of embodiment 1, the third wireless signal carries Msg 2.

In sub-embodiment 4 of embodiment 1, the fourth wireless signal carries Msg 4.

In sub-embodiment 5 of embodiment 1, the transmission Channel corresponding to the second radio signal is a Downlink Shared Channel (DL-SCH).

In sub-embodiment 6 of embodiment 1, the transport Channel corresponding to the third radio signal is an Uplink Shared Channel (UL-SCH).

In sub-embodiment 7 of embodiment 1, a transmission Channel corresponding to the fourth radio signal is a Downlink Shared Channel (DL-SCH).

In the sub-embodiment 8 of the embodiment 1, the uplink scheduling information includes at least one of { occupied time-frequency resource, MCS, frequency hopping identifier, power control, CQI request, and uplink delay }. In a sub-embodiment of sub-embodiment 8, the uplink scheduling information is a UL grant (uplink grant) of the MAC layer.

In sub-embodiment 9 of embodiment 1, the ID of the UE is TMSI (Temporary mobile subscriber Identity).

In sub-embodiment 10 of embodiment 1, the ID of the UE is an IMSI (International mobile subscriber Identity).

In sub-embodiment 11 of embodiment 1, any two antenna port groups of the antenna port groups corresponding to the X1 first sub-signals cannot be assumed to be the same.

In sub-embodiment 12 of embodiment 1, any two antenna port groups of the antenna port groups corresponding to the X2 second sub-signals cannot be assumed to be the same.

In sub-embodiment 13 of embodiment 1, the temporary user Identity is a C-RNTI (Cell Radio network temporary Identity).

In a sub-embodiment 14 of embodiment 1, the Temporary user identity is TC-RNTI (Temporary C-RNTI )

In sub-embodiment 15 of embodiment 1, the third wireless signal carries the first signaling. In one sub-embodiment of sub-embodiment 15, the first signaling is MAC layer signaling.

Example 2

Embodiment 2 illustrates a first wireless signal diagram, as shown in fig. 3. In fig. 3, the horizontal axis represents time, the vertical axis represents frequency, and each of the diagonal-filled rectangles represents a first sub-signal. In embodiment 2, the first wireless signal includes X1 of the first sub-signals, the X1 is a positive integer, and the first sub-signals are generated from a signature sequence.

In sub-embodiment 1 of embodiment 2, the transmission Channel corresponding to the first radio signal is a RACH (random access Channel).

In sub-embodiment 2 of embodiment 2, the physical Channel of the first wireless signal is a PRACH (physical random Access Channel).

In sub-embodiment 3 of embodiment 2, the signature sequence is a leader sequence (Preamble).

In sub-embodiment 4 of embodiment 2, the signature sequence comprises at least one of a { Zadoff-Chu sequence, a pseudo-random sequence }.

In sub-embodiment 5 of embodiment 2, the X1 first sub-signals correspond to the same signature sequence.

In sub-embodiment 6 of embodiment 2, at least two of the X1 first sub-signals correspond to different signature sequences.

In sub-embodiment 7 of embodiment 2, the X1 first sub-signals occupy X1 time intervals, respectively, the X1 time intervals are orthogonal,

in sub-embodiment 8 of embodiment 2, the X1 first sub-signals occupy the same frequency domain resources.

In sub-embodiment 9 of embodiment 2, two first sub-signals of the X1 first sub-signals occupy different frequency domain resources.

In sub-embodiment 10 of embodiment 2, the first sub-signal carries downlink antenna port group information.

In sub-embodiment 11 of embodiment 2, the first sub-signal carries an ID of the UE or partial information of the ID of the UE.

In sub-embodiment 12 of embodiment 2, the number of antenna ports included in any two antenna port groups of the antenna port groups corresponding to the X1 first sub-signals is the same.

Example 3

Embodiment 3 illustrates a schematic diagram of a relationship between a first wireless signal and a second wireless signal, as shown in fig. 3. In fig. 3, the horizontal axis represents time, each of the diagonal filled rectangles represents a first sub-signal, each of the cross-hatched filled rectangles represents a second sub-signal, and the curve with an arrow indicates the correlation between the connected first and second sub-signals.

In embodiment 3, the first wireless signal includes X1 first sub-signals, and the second wireless signal includes X2 second sub-signals. The X1 is an integer greater than or equal to the X2, and the X2 is a positive integer. The first signaling is used to determine X2 first sub-signals from the X1 first sub-signals, the configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of { occupied time domain resources, occupied frequency domain resources, corresponding antenna port group }, the antenna port group includes 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port group.

In sub-embodiment 1 of embodiment 3, the first sub-signal and the associated second sub-signal are transmitted by the same antenna port group.

In sub-embodiment 2 of embodiment 3, the time domain resources occupied by the first sub-signal are used to determine the time domain resources occupied by the associated second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

In a sub-embodiment 3 of the embodiment 3, a transmission end time of the first radio signal is earlier than a transmission start time of the second radio signal.

In sub-embodiment 4 of embodiment 3, said correlating means that all or part of said configuration information of one signal can be deduced from said configuration information of another signal.

In sub-embodiment 5 of embodiment 3, a delay of k milliseconds on a time domain resource occupied by the first sub-signal is a time domain resource occupied by the second sub-signal, where k is a rational number, and k is a default or configured by higher layer signaling.

In sub-embodiment 6 of embodiment 3, the time domain resource occupied by the first sub-signal is delayed by w time intervals and then is the time domain resource occupied by the second sub-signal, where w is a positive integer, and w is default or configured by higher layer signaling. As a sub-embodiment, one of the time intervals is one subframe (subframe). As another sub-embodiment, one of the time intervals is a radio frame (radio frame). As another sub-embodiment, one of the time intervals is a slot (slot). As another sub-embodiment, one of the time intervals is a sub-slot. As another sub-embodiment, one of the time intervals is a mini-slot.

In sub-embodiment 7 of embodiment 3, the frequency domain resources occupied by the first sub-signal and the frequency domain resources occupied by the associated second sub-signal are the same.

Example 4

Embodiment 4 illustrates a third wireless signal diagram, as shown in fig. 4. In fig. 4, the horizontal axis represents time, the vertical axis represents frequency, each of the diagonal filled rectangles represents a third sub-signal, and the cross-hatched filled rectangles represent the scheduling of the corresponding third sub-signal. The third sub-signals enclosed by the dashed lines constitute a subset of the third sub-signals.

In embodiment 4, the third wireless signal includes Y third sub-signals, where Y is a positive integer, there is a subset of X3 third sub-signals in the Y third sub-signals, there are two third sub-signals in the X3 third sub-signals, downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block, respectively, and a CRC of the first bit block and a CRC of the second bit block apply different scrambling sequences. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

In sub-embodiment 1 of embodiment 4, the third sub-signal is used to determine at least one of { X2 positions of the first sub-signals in X1 first sub-signals, X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

In sub-embodiment 2 of embodiment 4, the scrambling sequence is RA-RNTI.

In sub-embodiment 3 of embodiment 4, the channel Coding is Tail-biting convolutional Coding (TBCC).

In a sub-embodiment 4 of embodiment 4, the first bit block and the second bit block are different.

In sub-embodiment 5 of embodiment 4, the CRC (Cyclic Redundancy Check) includes H binary bits, where H is a positive integer, as a sub-embodiment, H is equal to 16.

In sub-embodiment 6 of embodiment 4, the Downlink scheduling information is DCI (Downlink control information).

In sub-embodiment 7 of embodiment 4, time domain resources occupied by any two of the X3 third sub-signals are orthogonal (i.e., do not overlap).

In sub-embodiment 8 of embodiment 4, the Y third sub-signals are transmitted by Y different antenna port groups (beams).

In sub-embodiment 9 of embodiment 4, two of the Y third sub-signals are transmitted by two identical antenna port groups (beams).

Example 5

Embodiment 5 illustrates a schematic diagram of an antenna port set, as shown in fig. 5. In fig. 5, the horizontal axis represents time, the upper graph represents a receiving end, the lower graph represents a transmitting end, each petal represents an antenna port group, the petals filled at the receiving end represent a receiving antenna port group in a corresponding time period, the petals filled at the transmitting end represent a transmitting antenna port group in a corresponding time period, and each rectangle represents a transmission signal in a corresponding time period.

In embodiment 5, the antenna port group includes 1 or more antenna ports, and each antenna port group corresponds to a specific time-frequency resource. The X1 first sub-signals, the X2 second sub-signals, the X3 third sub-signals, and the X4 fourth sub-signals are transmitted by corresponding antenna port groups, respectively. The first sub-signal and the associated second sub-signal are transmitted by the same antenna port group.

In sub-embodiment 1 of embodiment 5, the second sub-signal carries first sub-information, where the first sub-information includes at least one of { RRC connection request, tracking area update, scheduling request, ID of the UE, random number, and downlink antenna port group }. In one sub-embodiment of sub-embodiment 1, the downlink antenna port group corresponds to an antenna port group that is detected by the UE and transmits a downlink synchronization signal. In another sub-embodiment of sub-embodiment 1, the downlink antenna port group corresponds to an antenna port group detected by the UE to transmit a downlink broadcast signal.

In sub-embodiment 2 of embodiment 5, each of the antenna ports corresponds to an antenna Beam (Beam).

In sub-embodiment 3 of embodiment 5, each of the antenna port groups corresponds to an antenna Beam (Beam).

In sub-embodiment 4 of embodiment 5, any two antenna port groups of the antenna port groups corresponding to the X1 first sub-signals cannot be assumed to be the same.

In sub-embodiment 5 of embodiment 5, any two antenna port groups of the antenna port groups corresponding to the X2 second sub-signals cannot be assumed to be the same.

In sub-embodiment 6 of embodiment 5, the number of antenna ports included in any two antenna port groups of the antenna port groups corresponding to the X1 first sub-signals is the same.

In sub-embodiment 7 of embodiment 5, the number of antenna ports included in any two antenna port groups of the antenna port groups corresponding to the X2 second sub-signals is the same.

Example 6

Embodiment 6 is a block diagram illustrating a processing apparatus in a user equipment, as shown in fig. 6. In fig. 6, the ue processing apparatus 100 is mainly composed of a first sending module 101, a first receiving module 102 and a first processing module 103.

In embodiment 6, the first transmitting module 101 is used to transmit a first wireless signal, the first receiving module 102 is used to receive a first signaling, and the first processing module 103 is used to transmit a second wireless signal. The first wireless signal comprises X1 first sub-signals and the second wireless signal comprises X2 second sub-signals. The X1 is an integer greater than or equal to the X2, and the X2 is a positive integer. The first sub-signals are generated by a signature sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information includes at least one of { RRC connection request, tracking area update, scheduling request, ID of the UE, random number, and downlink antenna port group }. The first signaling is used to determine X2 first sub-signals from the X1 first sub-signals, the configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of { occupied time domain resource, occupied frequency domain resource, corresponding antenna port group }, the antenna port group includes 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port group. The first receiving module 102 is further configured to receive X3 third sub-signals, and the first processing module 103 is further configured to receive X4 fourth sub-signals.

In sub-embodiment 1 of embodiment 6, the first sub-signal and the associated second sub-signal are transmitted by the same antenna port group.

In sub-embodiment 2 of embodiment 6, the time domain resources occupied by the first sub-signal are used to determine the time domain resources occupied by the correlated second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

In sub-embodiment 3 of embodiment 6, the third sub-signal is used to determine at least one of { the positions of the X2 first sub-signals in the X1 first sub-signals, X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

In sub-embodiment 4 of embodiment 6, two of the X3 third sub-signals exist, downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block, respectively, and different scrambling sequences are applied to the CRC of the first bit block and the CRC of the second bit block. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

In sub-embodiment 5 of embodiment 6, the X2 pieces of the first sub-information are the same.

In sub-embodiment 6 of embodiment 6, the first sub information includes specific information, and information other than the specific information among the X2 pieces of the first sub information is the same, the specific information including at least one of { ID of the UE, random number }.

In sub-embodiment 7 of embodiment 6, the fourth sub-signal is used to determine a contention resolution ID of the UE, the contention resolution ID of the UE including one of { core network ID of the UE, the random number }.

Example 7

Embodiment 7 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 7. In fig. 7, the base station device processing apparatus 200 mainly comprises a second receiving module 201, a second sending module 202 and a second processing module 203.

In embodiment 7, the second receiving module 201 is used for monitoring the first wireless signal, the second sending module 202 is used for sending the first signaling, and the second processing module 203 is used for receiving the second wireless signal. Wherein the first wireless signal comprises X1 first sub-signals and the second wireless signal comprises X2 second sub-signals. The X1 is an integer greater than or equal to the X2, and the X2 is a positive integer. The first sub-signals are generated by a signature sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information includes at least one of { RRC connection request, tracking area update, scheduling request, ID of the UE, random number, and downlink antenna port group }. The first signaling is used to determine X2 first sub-signals from the X1 first sub-signals, the configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of { occupied time domain resource, occupied frequency domain resource, corresponding antenna port group }, the antenna port group includes 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port group. The second transmitting module 202 is further used for transmitting a third wireless signal, and the second processing module 203 is further used for transmitting a fourth wireless signal.

In sub-embodiment 1 of embodiment 7, the first sub-signal and the associated second sub-signal are transmitted by the same antenna port group.

In sub-embodiment 2 of embodiment 7, the time domain resources occupied by the first sub-signal are used to determine the time domain resources occupied by the correlated second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

In sub-embodiment 3 of embodiment 7, the third wireless signal includes Y third sub-signals, Y being a positive integer, the third sub-signals being used to determine at least one of { the X2 positions of the first sub-signals in the X1 first sub-signals, X2 second information }. The X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information includes at least one of { timing advance, temporary user identification, uplink scheduling information, backoff indication, and uplink antenna port group }. The uplink scheduling information comprises at least one of { occupied time-frequency resource, MCS, frequency hopping identification, power control, CQI request and uplink delay }.

In sub-embodiment 4 of embodiment 7, two third sub-signals exist in the Y third sub-signals, downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block, respectively, and different scrambling sequences are applied to the CRC of the first bit block and the CRC of the second bit block. The downlink scheduling information comprises at least one of { occupied time-frequency resource, MCS, RV, NDI, HARQ process number }.

In sub-embodiment 5 of embodiment 7, the X2 pieces of the first sub-information are the same.

In sub-embodiment 6 of embodiment 7, the first sub-information includes specific information, and information other than the specific information among the X2 pieces of the first sub-information is the same, and the specific information includes at least one of { ID of the UE, random number }.

In a sub-embodiment 7 of embodiment 7, the fourth wireless signal includes Z fourth sub-signals, Z being a positive integer, the fourth sub-signals being used to determine a contention resolution ID of the UE, the contention resolution ID of the UE including one of { core network ID of the UE, the random number }.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE or the terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, a network card, a low power consumption device, an MTC device, an NB-IoT device, a vehicle-mounted communication device, and other wireless communication devices. The base station or network side device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method in a user equipment used for random access, comprising the steps of:

-step a. transmitting a first wireless signal;

-step b. receiving the first signaling and X3 third sub-signals, said X3 being a positive integer;

-step c. transmitting a second wireless signal;

wherein the first wireless signal comprises X1 first sub-signals, the second wireless signal comprises X2 second sub-signals; the X1 is an integer greater than or equal to the X2, the X2 is a positive integer; the first sub-signals are generated by a signature sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information comprises at least one of an RRC connection request, a tracking area update, a scheduling request, an ID of the user equipment, a random number and a downlink antenna port group; the first signaling is used for determining X2 first sub-signals from the X1 first sub-signals, configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of occupied time domain resources, occupied frequency domain resources, and corresponding antenna port groups, the antenna port groups include 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port groups; the third sub-signal is used to determine at least one of the position of the X2 first sub-signals in the X1 first sub-signals, X2 second information; the X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information comprises at least one of timing advance, temporary user identification, uplink scheduling information, backoff indication and uplink antenna port group; the uplink scheduling information comprises at least one of occupied time-frequency resources, MCS, frequency hopping identification, power control, CQI request and uplink delay.

2. The method of claim 1, wherein the first sub-signal and the associated second sub-signal are transmitted by a same antenna port group.

3. A method according to claim 1 or 2, characterized in that the time domain resources occupied by the first subsignal are used for determining the time domain resources occupied by the related second subsignal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

4. The method according to claim 1 or 2, wherein there are two of the X3 third sub-signals, and the downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block respectively, and the CRC of the first bit block and the CRC of the second bit block apply different scrambling sequences; the downlink scheduling information comprises at least one of occupied time-frequency resources, MCS, RV, NDI and HARQ process number.

5. The method according to claim 1 or 2, wherein the X2 pieces of first sub information are the same.

6. The method according to claim 1 or 2, wherein the first sub-information comprises specific information, and information other than the specific information in the X2 first sub-information is the same, and the specific information comprises at least one of an ID and a random number of the user equipment.

7. The method according to claim 1 or 2, wherein said step C further comprises the steps of:

-a step c1. receiving X4 fourth sub-signals;

wherein the X4 is a positive integer, the fourth sub-signal is used to determine a contention resolution ID of the user equipment, and the contention resolution ID of the user equipment includes one of a core network ID of the user equipment and the random number.

8. A method in a base station used for random access, comprising the steps of:

-step a. monitoring a first wireless signal;

-step b. transmitting the first signaling and the third wireless signal;

-step c. receiving a second wireless signal;

wherein the first wireless signal comprises X1 first sub-signals, the second wireless signal comprises X2 second sub-signals; the X1 is an integer greater than or equal to the X2, the X2 is a positive integer; the first sub-signals are generated by a characteristic sequence, the X2 second sub-signals respectively carry X2 first sub-information, and the first sub-information comprises at least one of an RRC connection request, tracking area update, a scheduling request, an ID of user equipment, a random number and a downlink antenna port group; the first signaling is used for determining X2 first sub-signals from the X1 first sub-signals, configuration information of the X2 second sub-signals is respectively related to the X2 first sub-signals, the configuration information includes at least one of occupied time domain resources, occupied frequency domain resources, and corresponding antenna port groups, the antenna port groups include 1 or more antenna ports, and the second sub-signals are transmitted by the corresponding antenna port groups; the third wireless signal comprises Y third sub-signals, Y being a positive integer, the third sub-signals being used to determine at least one of X2 second information, and the position of the X2 first sub-signals in the X1 first sub-signals; the X2 pieces of second information are respectively specific to the X2 pieces of second sub-signals, and the second information comprises at least one of timing advance, temporary user identification, uplink scheduling information, backoff indication and uplink antenna port group; the uplink scheduling information comprises at least one of occupied time-frequency resources, MCS, frequency hopping identification, power control, CQI request and uplink delay.

9. The method of claim 8, wherein the first sub-signal and the associated second sub-signal are transmitted by the same antenna port group.

10. A method according to claim 8 or 9, characterized in that the time domain resources occupied by the first subsignal are used for determining the time domain resources occupied by the related second subsignal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

11. The method according to claim 8 or 9, wherein there are two of the Y third sub-signals, and the downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block respectively, and the CRC of the first bit block and the CRC of the second bit block apply different scrambling sequences; the downlink scheduling information comprises at least one of occupied time-frequency resources, MCS, RV, NDI and HARQ process number.

12. The method according to claim 8 or 9, wherein the X2 pieces of first sub information are the same.

13. The method according to claim 8 or 9, wherein the first sub-information comprises specific information, and information other than the specific information in the X2 first sub-information is the same, and the specific information comprises at least one of an ID and a random number of the user equipment.

14. The method according to claim 8 or 9, wherein said step C further comprises the steps of:

-a step c1. transmitting a fourth radio signal;

wherein the fourth wireless signal includes Z fourth sub-signals, Z being a positive integer, the fourth sub-signals being used to determine a contention resolution ID of the user equipment, the contention resolution ID of the user equipment including one of a core network ID of the user equipment and the random number.

15. A user equipment used for random access, comprising the following modules:

-a first sending module: for transmitting a first wireless signal;

-a first receiving module: for receiving the first signaling and X3 third sub-signals, the X3 being a positive integer;

-a first processing module: for transmitting a second wireless signal;

16. The user equipment of claim 15, wherein the first sub-signal and the associated second sub-signal are transmitted by a same antenna port group.

17. The UE of claim 15 or 16, wherein the time domain resources occupied by the first sub-signal are used to determine the time domain resources occupied by the related second sub-signal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

18. The UE of claim 15 or 16, wherein there are two of the X3 third sub-signals, and downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block respectively, and a CRC of the first bit block and a CRC of the second bit block apply different scrambling sequences; the downlink scheduling information comprises at least one of occupied time-frequency resources, MCS, RV, NDI and HARQ process number.

19. The ue according to claim 15 or 16, wherein the X2 pieces of first sub information are the same.

20. The ue according to claim 15 or 16, wherein the first sub information comprises specific information, and information other than the specific information in the X2 pieces of first sub information is the same, and the specific information comprises at least one of an ID and a random number of the ue.

21. The UE of claim 15 or 16, wherein the first processing module is further configured to receive X4 fourth sub-signals, the X4 is a positive integer, the fourth sub-signals are used to determine a contention resolution ID of the UE, and the contention resolution ID of the UE comprises one of a core network ID of the UE and the random number.

22. A base station device used for random access, comprising the following modules:

-a second receiving module: monitoring the first wireless signal;

-a second sending module: transmitting the first signaling and the third wireless signal;

-a second processing module: receiving a second wireless signal;

23. The base station apparatus of claim 22, wherein the first sub-signal and the associated second sub-signal are transmitted by a same antenna port group.

24. The base station device according to claim 22 or 23, wherein the time domain resources occupied by the first subsignal are used for determining the time domain resources occupied by the related second subsignal; or the frequency domain resources occupied by the first sub-signal are used to determine the frequency domain resources occupied by the correlated second sub-signal.

25. The base station apparatus according to claim 22 or 23, wherein there are two of the Y third sub-signals, downlink scheduling information of the two third sub-signals is generated by channel coding a first bit block and a second bit block respectively, and a CRC of the first bit block and a CRC of the second bit block apply different scrambling sequences; the downlink scheduling information comprises at least one of occupied time-frequency resources, MCS, RV, NDI and HARQ process number.

26. The base station device according to claim 22 or 23, wherein said X2 pieces of said first sub information are identical.

27. The base station apparatus according to claim 22 or 23, wherein the first sub information comprises specific information, and information other than the specific information in the X2 first sub information is the same, and the specific information comprises at least one of an ID and a random number of the user equipment.

28. The base station device according to claim 22 or 23, wherein the second processing module is further configured to transmit a fourth wireless signal, the fourth wireless signal includes Z fourth sub-signals, Z is a positive integer, the fourth sub-signals are used to determine a contention resolution ID of the user equipment, and the contention resolution ID of the user equipment includes one of a core network ID of the user equipment and the random number.