WO2019109314A1

WO2019109314A1 - Method for adjusting length of temporary identifier of user equipment, user equipment, and network device

Info

Publication number: WO2019109314A1
Application number: PCT/CN2017/115063
Authority: WO
Inventors: 杨宁
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-12-07
Filing date: 2017-12-07
Publication date: 2019-06-13
Also published as: CN110741662B; CN110741662A

Abstract

Disclosed are a method for adjusting a length of a temporary identifier of a user equipment (UE) unit, a user equipment unit, a network device, and a computer storage medium. The method comprises: receiving a content and a first length of a reconfigured first temporary identifier transmitted from a network side, and/or indicating a length of redundancy check bits corresponding to a physical downlink control channel of a UE unit.

Description

Method for adjusting temporary length of user equipment, user equipment and network equipment

Technical field

The present invention relates to the field of information processing technologies, and in particular, to a method for adjusting a temporary identifier length of a User Equipment (UE, User Equipment), a User Equipment (UE), a network device, and a computer storage medium.

Background technique

At present, with the pursuit of speed, delay, high-speed mobility, energy efficiency and the diversity and complexity of business in the future, the 3GPP International Standards Organization has begun to develop 5G. In LTE, the number of bits of the Cell-Radio Network Temporary Identifier (C-RNTI) of the UE is 16 bits, and the PDCCH is scrambled by the RNTI, that is, the CRC of the PDCCH is scrambled. The CRC of the PDCCH is also 16 bits.

However, in the NR, with the development of the Internet of Things technology, there are a large number of connected UEs in the future network, so the 16-bit C-RNTI will limit the number of users in the network to accommodate connected states.

Summary of the invention

To solve the above technical problem, the embodiment of the present invention provides a method for adjusting a temporary identifier length of a user equipment (UE, User Equipment), a user equipment (UE), a network device, and a computer storage medium.

A method for adjusting a temporary identifier length of a user equipment UE, which is applied to a UE, includes:

Receiving the content and the first length of the reconfigured first temporary identifier sent by the network, and/or indicating the length of the redundancy check bit corresponding to the physical downlink control channel of the UE

A method for adjusting the temporary identifier length of a user equipment UE according to an embodiment of the present invention shall be For network devices, including:

When it is determined that the first temporary identifier of the UE is reconfigured, determining a first temporary identifier content of the UE and a first length, and/or determining a length of a redundancy check bit corresponding to the physical downlink control channel;

Notifying the first temporary identifier content and the first length of the reconfiguration of the UE, and/or indicating a length of a redundancy check bit corresponding to the physical downlink control channel of the UE.

A user equipment (UE) provided by the embodiment of the present invention includes: a first communication unit, receiving content and a first length of a reconfigured first temporary identifier sent by a network side, and/or indicating physical downlink control of the UE The length of the redundancy check bit corresponding to the channel.

A network device provided by the embodiment of the present invention includes:

a second processing unit, when determining to reconfigure the first temporary identifier of the UE, determining a first temporary identifier content and a first length of the UE, and/or determining a redundancy check bit corresponding to the physical downlink control channel length;

And the second communication unit notifies the first temporary identifier content and the first length that are reconfigured by the UE, and/or indicates a length of the redundancy check bit corresponding to the physical downlink control channel of the UE.

A user equipment UE provided by an embodiment of the present invention includes: a processor and a memory for storing a computer program capable of running on the processor,

Wherein the processor is configured to perform the steps of the foregoing method when the computer program is run.

A network device provided by an embodiment of the present invention includes: a processor and a memory for storing a computer program capable of running on a processor,

A computer storage medium is provided by the embodiment of the present invention. The computer storage medium stores computer executable instructions, and the foregoing method steps are implemented when the computer executable instructions are executed.

The technical solution of the embodiment of the present invention can reconfigure the UE temporary identifier by the network side, including the length and specific content of the temporary identifier of the UE, and/or obtain the redundancy check bit sent by the network side. Therefore, the purpose of expanding the network connection user capacity and improving the transmission reliability is achieved.

DRAWINGS

FIG. 1 is a schematic flowchart 1 of a method for adjusting a temporary identifier length of a user equipment according to an embodiment of the present invention;

2 is a schematic flowchart 2 of a method for adjusting a temporary identifier length of a user equipment according to an embodiment of the present invention;

3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

4 is a schematic structural diagram of a network device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a hardware architecture according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Embodiment 1

An embodiment of the present invention provides a method for adjusting a temporary identifier length of a user equipment UE, which is applied to a UE, and includes:

Receiving, by the network side, the content of the reconfigured first temporary identifier and the first length, and/or indicating the length of the redundant check bit corresponding to the physical downlink control channel of the UE.

Specifically, referring to FIG. 1, the following processing steps are included:

Step 101: When the UE initially accesses the network side, the receiving network side allocates a second temporary identifier to the UE, where the length of the second temporary identifier is a second length, and the second length is less than or equal to First length

Step 102: Receive content and a first length of the reconfigured first temporary identifier sent by the network, and/or indicate a length of a redundant check bit corresponding to the physical downlink control channel of the UE.

It should be noted that the second temporary identifier and the first length of the first temporary identifier may be the same or different. The content of the second temporary identifier and the first temporary identifier may also be the same or different.

It should be understood that the second temporary identifier is usually 16 bits, and the length of the first temporary identifier is greater than or equal to the second temporary identifier; for example, the first temporary identifier may be 21 bits, and of course, other lengths may not be exhaustive. . In addition, the content of the first temporary identifier is not limited in this embodiment.

Optionally, the method may further include: sending capability information to the network side, where the capability information is used to at least support at least a temporary identifier greater than the first length; wherein the first length may be 16 bits.

That is, the network side may first acquire the capability of the UE, and determine, according to the capability of the UE, whether the UE supports a C-RNTI greater than 16 bits in length. Correspondingly, when the UE supports a C-RNTI greater than 16 bits in length, the UE performs the

foregoing steps

101 and 102.

Specifically, in the foregoing step 101, when the UE initially accesses the network side, the UE accesses the network through the RACH process, and the network side allocates a temporary C-RNTI (that is, the second temporary identifier) to the UE. The C-RNTI is currently 16bit.

The network side determines to reconfigure the C-RNTI value of the UE and the C-RNTI length, and may notify the UE of the reconfigured C-RNTI value and the C-RNTI length by using RRC signaling or MAC CE or PDCCH. At the same time, the network side may also indicate the UE, and the CRC check bit of the PDCCH is, for example, 16 or 21 bits.

Specifically, the first temporary identifier content and the first length of the reconfiguration performed by the receiving network, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE, including:

Receiving, by the radio link, the RRC message, receiving the first temporary identifier content and the first length of the reconfiguration sent by the network, and/or indicating the physical downlink control channel of the UE When the length of the parity bit is redundant, the first temporary identifier content and length of the reconfiguration are used for processing.

That is, if it is the RRC message reconfiguration C-RNTI value and the C-RNTI length and/or the CRC check bit length, the new C-RNTI takes effect immediately after the RRC acknowledgment message is sent.

Receiving the first temporary identifier content and the first length of the reconfiguration performed by the network side, and/or indicating the length of the redundancy check bit corresponding to the physical downlink control channel of the UE, including:

And receiving, by the control unit of the medium access control layer, or the physical downlink control channel order order, the first temporary identifier content and the first length sent by the network, and/or indicating that the physical downlink control channel of the UE is corresponding to When the length of the redundancy check bit is exceeded, the first temporary identifier content and length using the re-configuration are turned on for processing at the target time.

That is, when the C-RNTI value and the C-RNTI length and/or the CRC check bit length are reconfigured in the MAC CE mode or the PDCCH order form, the time point of the new C-RNTI is specified.

The determining, by the control unit of the media access control layer, or the time information carried in the physical downlink control channel order order, determining the target time;

The time information is a time offset or an effective time of the first temporary identifier configured on the network side. The aforementioned time offset can be understood as a relative time, and the effective time of the first temporary identifier can be understood as an absolute time.

Of course, the manner of obtaining the foregoing target time may also be preset by using a protocol, that is, the relative time may be preset by the protocol, for example, after a certain time after receiving the instruction, the reconfiguration is started. The first temporary identification content and length are processed.

The valid time information can be carried out by protocol or in the MAC CE or in the PDCCH order. The time information may be a time offset relative to the receipt of the MAC CE or PDCCH order. Or the time information may be an absolute time that the new C-RNTI is effective, that is, an SFN, a subframe, and symbol information at the moment.

Further, receiving the first temporary identifier content and the first of the reconfiguration sent by the network side After the length, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE, the method further includes:

If the first length of the first temporary identifier is smaller than the length of the redundant check digit, increase the bit of the first temporary identifier, so that the length of the first temporary identifier after adding the bit is The length of the redundancy check bits is the same.

That is, if the length of the CRC check bit is longer than the length of the C-RNTI bit, the C-RNTI automatically fills the bit 0 to reach the bit length of the CRC indicated by the network side. The PDCCH is blindly decoded according to the CRC length indicated by the network side.

It can be seen that, by using the foregoing solution, the UE temporary identifier can be reconfigured by the network side, including the length and specific content of the temporary identifier of the UE, and/or the redundancy check bit sent by the network side can be obtained, thereby expanding the capacity of the network connection user. And the purpose of improving transmission reliability.

Embodiment 2

An embodiment of the present invention provides a method for adjusting a temporary identifier length of a user equipment, which is applied to a network device, as shown in FIG. 2, and includes:

Step 201: Determine, when reconfiguring the first temporary identifier of the UE, the first temporary identifier content and the first length of the UE, and/or determine the length of the redundancy check bit corresponding to the physical downlink control channel. ;

Step 202: Notifying the first temporary identifier content and the first length that are reconfigured by the UE, and/or indicating a length of a redundancy check bit corresponding to the physical downlink control channel of the UE.

Before the determining to reconfigure the first temporary identifier of the UE, the method further includes:

When the UE initially accesses the network side, the second temporary identifier is allocated to the UE; wherein the length of the second temporary identifier is a second length, and the second length is less than or equal to the first length.

It should be noted that the second temporary identifier and the first temporary identifier may be the same or different in length, and correspondingly, the content of the second temporary identifier and the first temporary identifier may be the same or different; The length of the second temporary identifier is a second length.

It should be understood that the second temporary identifier is usually 16 bits, and the first temporary identifier is greater than or equal to the second temporary identifier. For example, the first temporary identifier may be 21 bits, and of course, other lengths may be used. Exhaustive. In addition, the content of the first temporary identifier is not limited in this embodiment.

Optionally, the method may further include: receiving capability information sent by the UE, where the capability information is used to at least support at least a temporary identifier that is greater than the first length.

The first length may be 16 bits or 21 bits. Of course, the length may be other lengths as long as the second length is greater than or equal to the second length.

That is, the network side may first acquire the capability of the UE, and determine, according to the capability of the UE, whether the UE supports a C-RNTI greater than 16 bits in length. Correspondingly, when the UE supports a C-RNTI greater than 16 bits in length, the UE performs the foregoing step 201.

Specifically, when the UE initially accesses the network side, the network accesses the network through the RACH process, and the network side allocates a temporary C-RNTI (that is, the second temporary identifier) to the UE. The C-RNTI is currently 16bit.

Specifically, the first temporary identifier content and the first length that are notified by the UE to be reconfigured, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE, including:

The RRC message is controlled by the radio link, and the first temporary identifier content and length re-configured by the UE are notified, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE is indicated.

That is, if it is an RRC message reconfiguration C-RNTI value and C-RNTI length and / or The CRC check bit length, the new C-RNTI takes effect immediately after the RRC acknowledgment message is sent.

The first temporary identifier content and the first length that are notified by the UE to be reconfigured, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE, including:

Notifying the first temporary identifier content and length of the UE reconfiguration by the control unit of the medium access control layer, or the physical downlink control channel order order, and/or indicating the redundancy of the physical downlink control channel of the UE The length of the remainder check digit.

If the length of the CRC check bit is longer than the length of the C-RNTI bit, the C-RNTI automatically fills the bit 0 to reach the bit length of the CRC indicated by the network side. The PDCCH is blindly decoded according to the CRC length indicated by the network side.

It can be seen that, by using the foregoing solution, the UE temporary identifier can be reconfigured by the network side, including the length and specific content of the temporary identifier of the UE, and/or the redundancy check bit sent by the network side is obtained. Therefore, the purpose of expanding the network connection user capacity and improving the transmission reliability is achieved.

Embodiment 3

An embodiment of the present invention provides a UE, as shown in FIG. 3, including:

The first communication unit 31 receives the content and the first length of the reconfigured first temporary identifier sent by the network, and/or indicates the length of the redundant check bit corresponding to the physical downlink control channel of the UE.

The first communication unit, when the UE initially accesses the network side, receives a second temporary identifier that is allocated by the network side to the UE, where the length of the second temporary identifier is a second length. The second length is less than or equal to the first length.

Optionally, the first communication unit 31 sends the capability information to the network side, where the capability information is used to at least support at least a temporary identifier greater than the first length; wherein the first length may be 16 bits.

That is, the network side may first acquire the capability of the UE, and determine, according to the capability of the UE, whether the UE supports a C-RNTI greater than 16 bits in length. Correspondingly, when the UE supports the C-RNTI that is greater than the 16-bit length, the UE performs the foregoing receiving the content and the first length of the re-configured first temporary identifier sent by the network side, and/or indicating the physical downlink control channel of the UE. The processing of the length of the corresponding redundant check digit.

Specifically, when the UE initially accesses the network side, accessing the network side through the RACH process, At this time, the network side allocates a temporary C-RNTI (that is, the second temporary identifier) to the UE. The C-RNTI is currently 16bit.

Specifically: the UE further includes:

The first processing unit 32, when controlling the RRC message by using the radio link, receiving the first temporary identifier content and the first length of the reconfiguration sent by the network side, and/or indicating the corresponding physical downlink control channel of the UE When the length of the parity bit is redundant, the first temporary identifier content and length of the reconfiguration are used for processing.

The first processing unit 32 receives the first temporary identifier content and the first length sent by the network side, and/or indicates by the control unit of the medium access control layer or the physical downlink control channel order order. When the length of the redundancy check bit corresponding to the physical downlink control channel of the UE is used, the first temporary identifier content and the length of the re-configuration are opened for processing at the target time.

Further, if the first length of the first temporary identifier is smaller than the length of the redundant check digit, the first processing unit increases the bit of the first temporary identifier, so that after the bit is added, The length of the first temporary identifier is the same as the length of the redundant check digit.

Embodiment 4

An embodiment of the present invention provides a network device, as shown in FIG. 4, including:

The second processing unit 41, when determining to reconfigure the first temporary identifier of the UE, determining a first temporary identifier content and a first length of the UE, and/or determining a redundancy check corresponding to the physical downlink control channel Length of bit

The second communication unit 42 notifies the first temporary identification content and the first length reconfigured by the UE, and/or indicates the length of the redundancy check bit corresponding to the physical downlink control channel of the UE.

The second processing unit 41, when the UE initially accesses the network side, allocates a second temporary identifier to the UE, where the length of the second temporary identifier is a second length, and the second The length is less than or equal to the first length.

Optionally, the second communication unit 42 receives capability information sent by the UE, where the capability information is used to at least support at least a temporary identifier greater than the first length.

Specifically, the second communication unit 42 notifies the first temporary identifier content and length reconfigured by the UE by using a radio link control RRC message, and/or indicates that the UE physical downlink control channel corresponds to The length of the redundancy check digit.

The second communication unit 42 notifies the content and length of the first temporary identifier reconfigured by the UE by using a control unit of the medium access control layer or a physical downlink control channel order order, and/or indicating the The length of the redundancy check bit corresponding to the physical downlink control channel of the UE.

Further, if the length of the first temporary identifier is smaller than the length of the redundant check digit, the UE side increases the bit of the first temporary identifier, so that the first temporary identifier after the bit is added The length is the same as the length of the redundant check digit.

The embodiment of the present invention further provides a hardware component architecture of the user equipment or the network device. As shown in FIG. 5, the method includes at least one processor 51, a memory 52, and at least one network interface 53. The various components are coupled together by a bus system 54. It will be appreciated that bus system 54 is used to implement connection communication between these components. The bus system 54 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 54 in FIG.

It is to be understood that the memory 52 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.

In some embodiments, memory 52 stores elements, executable modules or data structures, or a subset thereof, or their extension set:

Operating system 521 and application 522.

The processor 51 is configured to be able to process the method steps of the first embodiment or the second embodiment, and details are not described herein.

A computer storage medium is provided by the embodiment of the present invention. The computer storage medium stores computer executable instructions. When the computer executable instructions are executed, the method steps of the first embodiment or the second embodiment are implemented.

Embodiments of the Invention The above apparatus may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

Correspondingly, an embodiment of the present invention further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute a data scheduling method according to an embodiment of the present invention.

While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Claims

A method for adjusting a temporary identifier length of a user equipment UE is applied to a UE, including:

Receiving, by the network side, the content of the reconfigured first temporary identifier and the first length, and/or indicating the length of the redundant check bit corresponding to the physical downlink control channel of the UE.
The method according to claim 1, wherein the receiving the content of the first temporary identifier of the reconfiguration sent by the network side and the first length, and/or indicating the redundancy school corresponding to the physical downlink control channel of the UE Before the length of the check, the method further includes:

When the UE initially accesses the network side, the receiving network side allocates a second temporary identifier to the UE, where the length of the second temporary identifier is a second length, and the second length is less than or equal to the first length. .
The method according to claim 1, wherein the receiving the content of the first temporary identifier of the reconfiguration sent by the network side and the first length, and/or indicating the redundancy school corresponding to the physical downlink control channel of the UE The length of the check, including:

When the RRC message is controlled by the radio link, the first temporary identifier content and the first length of the reconfiguration sent by the network side are received, and/or the redundancy check bit corresponding to the physical downlink control channel of the UE is indicated. In the case of length, the first temporary identification content and length of the reconfiguration are used for processing.
The method according to claim 1, wherein the receiving the content of the first temporary identifier of the reconfiguration sent by the network side and the first length, and/or indicating the redundancy school corresponding to the physical downlink control channel of the UE The length of the check, including:

And receiving, by the control unit of the medium access control layer, or the physical downlink control channel order order, the first temporary identifier content and the first length sent by the network, and/or indicating that the physical downlink control channel of the UE is corresponding to When the length of the redundancy check bit is exceeded, the first temporary identifier content and length using the re-configuration are turned on for processing at the target time.
The method of claim 4 wherein the method further comprises:

Determining the target time based on a control unit of the media access control layer or time information carried in a physical downlink control channel order order;

The time information is a time offset or an effective time of the first temporary identifier configured on the network side.
The method according to claim 1, wherein the content of the first temporary identifier of the reconfiguration sent by the network side and the first length are received, and/or the redundancy check bit corresponding to the physical downlink control channel of the UE is indicated. After the length, the method further includes:

If the length of the first temporary identifier is less than the length of the redundant check digit, increase the bit of the first temporary identifier, so that the length of the first temporary identifier after adding the bit is the redundancy The remaining check digits have the same length.
The method according to claim 1, wherein the receiving the content of the first temporary identifier of the reconfiguration sent by the network side and the first length, and/or indicating the redundancy school corresponding to the physical downlink control channel of the UE Before the length of the check, the method further includes:

Transmitting capability information to the network side; wherein the capability information is at least used to support at least a temporary identifier greater than the first length.
A method for adjusting a temporary identifier length of a user equipment UE, which is applied to a network device, includes:

When it is determined that the first temporary identifier of the UE is reconfigured, determining a first temporary identifier content of the UE and a first length, and/or determining a length of a redundancy check bit corresponding to the physical downlink control channel;

Notifying the first temporary identifier content and the first length of the reconfiguration of the UE, and/or indicating a length of a redundancy check bit corresponding to the physical downlink control channel of the UE.
The method of claim 8, wherein the method further comprises: before determining to reconfigure the first temporary identifier of the UE, the method further comprising:

When the UE initially accesses the network side, the UE is allocated a second temporary identifier; The length of the second temporary identifier is a second length, and the second length is less than or equal to the first length.
The method according to claim 8, wherein the first temporary identification content and the first length that are notified by the UE to be reconfigured, and/or the redundancy check corresponding to the physical downlink control channel of the UE is indicated. The length of the bit, including:

The RRC message is controlled by the radio link, and the first temporary identifier content and length re-configured by the UE are notified, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE is indicated.
The method according to claim 8, wherein the first temporary identification content and the first length that are notified by the UE to be reconfigured, and/or the redundancy check corresponding to the physical downlink control channel of the UE is indicated. The length of the bit, including:

Notifying the first temporary identifier content and length of the UE reconfiguration by the control unit of the medium access control layer, or the physical downlink control channel order order, and/or indicating the redundancy of the physical downlink control channel of the UE The length of the remainder check digit.
The method of claim 8, wherein the method further comprises: before determining to reconfigure the first temporary identifier of the UE, the method further comprising:

Receiving capability information sent by the UE, where the capability information is used to at least support at least a temporary identifier greater than the first length.
A UE, including:

The first communication unit receives the content and the first length of the reconfigured first temporary identifier sent by the network side, and/or indicates the length of the redundancy check bit corresponding to the physical downlink control channel of the UE.
The UE according to claim 13, wherein the first communication unit receives a second temporary identifier allocated by the network side for the UE when the UE initially accesses the network side; wherein the second temporary The length of the marker is a second length, and the second length is less than or equal to the first length.
The UE of claim 13, wherein the UE further comprises:

The first processing unit receives the RRC message through the radio link, and receives the weight sent by the network side When the first temporary identifier content and the first length are configured, and/or the length of the redundancy check bit corresponding to the physical downlink control channel of the UE is indicated, the first temporary identifier content of the reconfiguration is adopted. And length for processing.
The UE of claim 13, wherein the UE further comprises:

Receiving, by the control unit of the medium access control layer, or the physical downlink control channel order order, the first temporary identifier content and the first length sent by the network side, and/or indicating the UE When the length of the redundancy check bit corresponding to the physical downlink control channel is the same, the first temporary identifier content and the length of the re-arranged configuration are opened for processing at the target time.
The UE of claim 13, wherein the UE further comprises:

The first processing unit determines the target time based on a control unit of the media access control layer or time information carried in a physical downlink control channel order order;

The time information is a time offset or an effective time of the first temporary identifier configured on the network side.
The UE of claim 13, wherein the UE further comprises:

a first processing unit, if the length of the first temporary identifier is smaller than the length of the redundant check digit, adding a bit of the first temporary identifier, so that the first temporary identifier after adding the bit The length is the same as the length of the redundant check digit.
The UE according to claim 13, wherein

The first communication unit sends capability information to the network side, where the capability information is used to at least support at least a temporary identifier greater than the first length.
A network device, including:

a second processing unit, when determining to reconfigure the first temporary identifier of the UE, determining a first temporary identifier content and a first length of the UE, and/or determining a redundancy check bit corresponding to the physical downlink control channel length;

a second communication unit, configured to notify the UE to reconfigure the first temporary identifier content and the first length And, or, indicating a length of a redundancy check bit corresponding to the physical downlink control channel of the UE.
The network device according to claim 20, wherein the second processing unit allocates a second temporary identifier to the UE when the UE initially accesses the network side; wherein the length of the second temporary identifier is Two lengths, the second length being less than or equal to the first length.
The network device according to claim 20, wherein the second communication unit notifies the first temporary identification content and length reconfigured by the UE by using a radio link control RRC message, and/or indicates The length of the redundancy check bit corresponding to the physical downlink control channel of the UE.
The network device according to claim 20, wherein the second communication unit notifies the first temporary identifier reconfigured by the UE by a control unit of a medium access control layer or a physical downlink control channel order order Content and length, and/or indicating the length of the redundancy check bit corresponding to the physical downlink control channel of the UE.
The network device according to claim 20, wherein the second communication unit receives capability information sent by the UE, wherein the capability information is at least used to support at least a temporary identifier greater than a first length.