WO2018090757A1

WO2018090757A1 - Paging method and apparatus, and system and computer storage medium

Info

Publication number: WO2018090757A1
Application number: PCT/CN2017/105384
Authority: WO
Inventors: 牛丽; 吴昱民; 赵亚军
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-11-17
Filing date: 2017-10-09
Publication date: 2018-05-24
Also published as: CN108076441A; CN108076441B

Abstract

Disclosed are a paging method and apparatus, a system and a computer storage medium. The method comprises: when an eNB determines that a paging message is triggered by the eNB, using a first RNTI to scramble a PDCCH bearing the paging message, wherein the first RNTI is different from a second RNTI used by a core network element for triggering a paging message; and the eNB sending, to a UE, the scrambled PDCCH bearing the paging message. The UE receives the scrambled PDCCH sent by the eNB and bearing the paging message; and if the UE succeeds in descrambling the PDCCH by using the first RNTI, it is determined that the paging message in the PDCCH is triggered by the eNB.

Description

Paging method and device, system and computer storage medium

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 17, 2016, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present invention relates to paging technologies, and in particular, to a paging method and apparatus, system, and computer storage medium in a Long Term Evolution (LTE) system.

Background technique

The Long Term Evolution (LTE) system is mainly composed of three types of devices: User Equipment (UE), Core Network (CN), and Evolved Node B (eNB). The Mobility Management Entity (MME) is mainly responsible for the transmission of signaling. The interface between the UE and the eNB is Uu, and the interface between the eNB and the core network is S1.

However, as shown in FIG. 1, the control plane architecture of the LTE system includes: a physical layer (PHY), a medium access control layer (MAC), and a radio link layer control protocol layer (RLC, Radio Link). Control), Packet Data Convergence Protocol (PDCP), Radio Resource Control (RRC), and Non-Access Stratum (NAS).

In the LTE system, when the UE has data to transmit, the call may be initiated or called, and the Uu connection is first established with the eNB, and then the eNB establishes an S1 connection with the core network for the UE. After the UE has no data transmission, the MME initiates a process of releasing the UE, and the eNB clears the UE. Information, as well as releasing the UE's connection at S1. Subsequently, the UE enters an idle state.

In the future communication system, the number of terminals grows rapidly, especially in the application of the Internet of Things, which may result in the eNB needing to establish a signaling connection with a large number of UEs. On the one hand, these signaling connections consume a lot of air interface resources, especially for small packet services. Unlike traditional services, these services not only have small packet characteristics, but also have long transmission intervals. For example, the WeChat service, which has occupied air interface resources for a long time; on the other hand, a large number of signaling connections place high demands on the processing capability and capacity of the eNB, and these signaling processes occupy a large amount of eNBs. Processing time, and increase the cost of the eNB's hardware processor and memory.

In order to alleviate the signaling load of the UE and the eNB, a light connection state is currently proposed. When the UE has no data transmission, the UE and the eNB may remain in the light connection state. In the light connection state, the UE only needs to perform a process such as a cell re-process. The UE also achieved the goal of saving power. The eNB not only saves the information of the UE, but also maintains the S1 connection of the UE with the core network. In this way, when the UE is in the light connection state, and the UE has data transmission, it is only necessary to re-establish the connection between the UE and the eNB, and the communication can be resumed, and the delay requirement of the service is also ensured.

The eNB needs to initiate a paging process when the UE is in the light connection state and the UE has downlink data arriving. However, since there are downlink data arriving at the core network, there are two kinds of paging messages that can be caused:

The MME initiates a paging process. As shown in FIG. 2, when the UE is in an idle state, the MME sends a paging message to all eNBs in the tracking area (TA, Tracking Area) where the UE is located. After the paging message is broadcasted within the coverage, after the UE monitors its own paging message, it initiates an RRC establishment procedure to the eNB to establish a connection with the eNB.

The other is a paging procedure initiated by the radio access network (RAN). As shown in FIG. 3, the UE is in a light connection state, and the core network submits the data packet to the eNB through the S1 connection of the UE. The eNB needs to notify the UE by using a paging message. After receiving the paging message, the UE initiates an RRC recovery process to the eNB, returns to the RRC connection state, and resumes. Connection with the eNB and the core network.

However, there is currently an abnormal situation, that is, although the core network releases the UE, the UE is still in the LC state. When the core network has downlink data transmission to the UE, the MME triggers the paging process. After receiving the paging message, the UE considers that it is the paging process initiated by the RAN side, and then initiates an RRC recovery process to the eNB.

However, there is currently no technical solution for solving this abnormal situation.

Summary of the invention

To solve the above technical problem, an embodiment of the present invention provides a paging method, device, system, and computer storage medium.

The paging method provided by the embodiment of the present invention includes:

When the base station determines that the paging message is triggered by the base station, the first radio network temporary identifier RNTI is used to scramble the physical downlink control channel PDCCH carrying the paging message, and the first RNTI and the core network element trigger the paging message. The second RNTI is different;

The base station sends the PDCCH of the scrambled bearer paging message to the UE.

In the embodiment of the present invention, the method further includes:

The radio resource control layer RRC of the base station side fills in the identifier of the UE to be paged in the paging message, and when the RRC transmits the paging message to the radio link control layer RLC, the paging message is triggered by the base station;

When the RLC transmits the paging message to the medium access control layer MAC, it indicates that the paging message is triggered by the base station.

In the embodiment of the present invention, when the base station determines that the paging message is triggered by the base station, the first radio network temporary identifier RNTI is used to scramble the physical downlink control channel PDCCH carrying the paging message, including:

When the physical layer PHY on the base station side determines that the paging message is a paging message triggered by the base station, The PDCCH carrying the paging message is scrambled with the first RNTI.

In the embodiment of the present invention, the first RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.

A paging method provided by another embodiment of the present invention includes:

Receiving, by the UE, the PDCCH of the scrambled bearer paging message sent by the base station;

If the UE successfully descrambles the PDCCH by using the first RNTI, determining that the paging message in the PDCCH is triggered by the base station, the first RNTI is different from the second RNTI used by the core network element to trigger the paging message.

In the embodiment of the present invention, the method further includes:

After the PHY of the UE side descrambles the PDCCH by using the first RNTI, the MAC message indicating to the UE side is triggered by the base station;

When the MAC of the UE side transmits the paging message to the RLC, it indicates that the paging message is triggered by the base station;

When the RLC on the UE side transmits a paging message to the RRC, it indicates that the paging message is triggered by the base station.

In the embodiment of the present invention, the method further includes:

After receiving the paging message triggered by the base station, the RRC of the UE side determines whether the UE identifier carried in the paging message is its own UE identifier.

If the UE identifier carried in the paging message is its own UE identifier, RRC recovery is performed.

In the embodiment of the present invention, the new RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.

The paging device provided by the embodiment of the present invention includes:

And the scrambling unit is configured to: when the paging message is triggered by the base station, use the first RNTI to scramble the PDCCH carrying the paging message, where the first RNTI is different from the second RNTI used by the core network element to trigger the paging message. ;

The sending unit is configured to send the PDCCH of the scrambled bearer paging message to the UE.

In the embodiment of the present invention, the device further includes:

The encapsulating unit is configured to fill in the identifier of the UE to be paged in the paging message by using the RRC of the base station side;

And an indicating unit, configured to: when the RRC transmits the paging message to the RLC, instructing the paging message to be triggered by the base station; when the RLC transmits the paging message to the MAC, indicating that the paging message is triggered by the base station .

In the embodiment of the present invention, the scrambling unit is further configured to: when the paging message sent by the base station is used to determine that the paging message is a paging message triggered by the base station, use the first RNTI to add the PDCCH that carries the paging message. Disturb. The paging apparatus according to any one of claims 10 to 12, wherein the first RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.

A paging apparatus according to another embodiment of the present invention includes:

a receiving unit, configured to receive a PDCCH of the scrambled bearer paging message sent by the base station;

a determining unit, configured to: if the PDCCH is successfully descrambled by using the first RNTI, determining that the paging message in the PDCCH is triggered by the base station, where the first RNTI and the core network element trigger the paging message RNTI is different.

In the embodiment of the present invention, the device further includes:

The indication unit is configured to: when the PHY of the UE side successfully descrambles the PDCCH by using the first RNTI, indicating that the paging message is triggered by the base station to the MAC of the UE side; when the MAC of the UE side transmits the paging message to the RLC, Instructing the paging message to be triggered by the base station; when the RLC on the UE side transmits the paging message to the RRC, indicating that the paging message is triggered by the base station.

In the embodiment of the present invention, the device further includes:

And a descrambling unit configured to descramble the PDCCH by using the first RNTI or the second RNTI by using the PHY of the UE side.

In the embodiment of the present invention, the device further includes:

The recovery unit is configured to: when the RRC of the UE side receives the paging message triggered by the base station, determine whether the UE identifier carried in the paging message is its own UE identifier; if the UE identifier carried in the paging message is its own UE identifier , then perform RRC recovery.

The paging system provided by the embodiment of the present invention includes:

The base station is configured to: when the paging message is triggered by the base station, use the first RNTI to scramble the PDCCH carrying the paging message; and send the PDCCH with the scrambled bearer paging message to the UE, where the first RNTI is The second RNTI used by the core network element to trigger the paging message is different;

The UE is configured to receive the PDCCH of the scrambled bearer paging message sent by the base station; if the PDCCH is descrambled successfully by using the first RNTI, determine that the paging message in the PDCCH is triggered by the base station.

In the embodiment of the present invention, the base station is configured to: the RRC of the base station side fills in the identifier of the UE to be paged in the paging message, and when the RRC transmits the paging message to the RLC, the paging message is indicated by the The base station triggers; when the RLC transmits the paging message to the medium access control layer MAC, the paging message is triggered by the base station; when the PHY of the base station determines that the paging message is the paging message triggered by the base station, the eNB uses The first RNTI scrambles the PDCCH carrying the paging message.

In the embodiment of the present invention, the UE is specifically configured to: after the PHY of the UE side descrambles the PDCCH by using the first RNTI, the MAC message indicating to the UE side is triggered by the base station; the MAC of the UE side is to be found. When the call message is transmitted to the RLC, the paging message is triggered by the base station; when the RLC of the UE side transmits the paging message to the RRC, the paging message is triggered by the base station.

In the embodiment of the present invention, the UE is specifically configured to: after receiving the paging message triggered by the base station, the RRC of the UE side determines whether the UE identifier carried in the paging message is its own UE identifier; If the UE identifier carried in the paging message is its own UE identifier, RRC recovery is performed.

The computer storage medium provided by the embodiment of the present invention stores a computer program configured to execute the paging method.

In the technical solution of the embodiment of the present invention, when the base station determines that the paging message is triggered by the base station, the PDCCH carrying the paging message is scrambled by using the first RNTI, and the first RNTI and the core network element trigger the paging message. The second RNTI is different; the base station sends the PDCCH with the scrambled bearer paging message to the UE. The UE receives the PDCCH of the scrambled bearer paging message sent by the base station; if the UE successfully descrambles the PDCCH by using the first RNTI, it determines that the paging message in the PDCCH is triggered by the base station. In the embodiment of the present invention, the base station side uses the first RNTI (that is, the new RNTI) to scramble the PDCCH carrying the paging message, so as to distinguish the paging message by the base station. The side triggering is triggered by the core network element (such as the MME) side, and the two different paging messages are differentiated, thereby preventing the core network element side from being triggered to be paged when the UE is in the LC state. The message is triggered as a base station side to avoid confusion of the paging process. In the embodiment of the present invention, the trigger source of the paging message is distinguished by the method of scrambling the PDCCH without changing the paging message, and the existing network investment is protected, and the network hardware is not required to be changed, thereby saving the network maintenance cost.

DRAWINGS

1 is a schematic diagram of a control plane architecture of an LTE system;

2 is a schematic diagram of a paging process initiated by an MME;

3 is a schematic diagram of a paging process initiated by the RAN side;

4 is a flowchart of a paging method according to Embodiment 1 of the present invention;

5 is a flowchart of a paging method according to Embodiment 2 of the present invention;

FIG. 6 is a flowchart of a first example of a paging method according to an embodiment of the present invention; FIG.

FIG. 7 is a flowchart of a second example of a paging method according to an embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a paging apparatus according to Embodiment 1 of the present invention; FIG.

9 is a schematic structural diagram of a paging apparatus according to Embodiment 2 of the present invention;

FIG. 10 is a schematic structural diagram of a paging system according to an embodiment of the present invention.

detailed description

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

FIG. 4 is a flowchart of a paging method according to Embodiment 1 of the present invention. As shown in FIG. 4, the paging method according to the embodiment of the present invention includes the following processing steps:

Step 401: The base station determines that the PDCCH carrying the paging message is scrambled by using the first RNTI when the paging message is triggered by the base station, where the first RNTI is different from the second RNTI used by the core network element to trigger the paging message. .

In the embodiment of the present invention, the paging message triggered by the base station corresponds to the first RNTI, which is also called a new RNTI. For a paging message triggered by a core network element (such as an MME), it corresponds to a second RNTI, also called a P-RNTI.

Step 402: The base station sends the PDCCH of the scrambled bearer paging message to the UE.

In the embodiment of the present invention, the radio resource control layer RRC of the base station side fills in the identifier of the UE to be paged in the paging message, and when the RRC transmits the paging message to the radio link control layer RLC, the paging message is indicated by the The base station triggers; when the RLC transmits the paging message to the medium access control layer MAC, it indicates that the paging message is triggered by the base station. When the physical layer PHY on the base station side determines that the paging message is a paging message triggered by the base station, the PDCCH carrying the paging message is scrambled by using the first RNTI.

FIG. 5 is a flowchart of a paging method according to Embodiment 2 of the present invention. As shown in FIG. 5, the paging method according to the embodiment of the present invention includes the following processing steps:

Step 501: The UE receives the PDCCH of the scrambled bearer paging message sent by the base station.

Step 502: If the UE successfully descrambles the PDCCH by using the first RNTI, determining that the paging message in the PDCCH is triggered by the base station, and the first RNTI and the second RNTI used by the core network element to trigger the paging message different.

In the embodiment of the present invention, after the PHY on the UE side descrambles the PDCCH by using the first RNTI, the MAC message to the UE side indicates that the paging message is triggered by the base station; when the MAC of the UE side transmits the paging message to the RLC, the indication is The paging message is triggered by the base station; when the RLC of the UE side transmits the paging message to the RRC, the paging message is triggered by the base station.

In the embodiment of the present invention, after receiving the paging message triggered by the base station, the RRC of the UE side determines whether the UE identifier carried in the paging message is its own UE identifier; if the UE identifier carried in the paging message is its own UE identifier , then perform RRC recovery.

The technical solutions of the embodiments of the present invention are further elaborated below through specific application examples.

In the embodiment of the present invention, the new RNTI is a PDCCH corresponding to the paging message triggered by the RAN side, and may be defined as a RAN-P-Radio Network Temporary Identifier. According to the current use of RNTI

Then, the value of RAN-P-RNTI can take a value in FFF4-FFF9, for example, as shown in Table 1 below:

Table 1

FIG. 6 is a flowchart of a first example of a paging method according to an embodiment of the present invention. It is assumed that a certain UE is in a light connection state. When the downlink data arrives at the eNB, the eNB needs to initiate paging, as shown in FIG. The paging process on the eNB side includes the following steps:

Step 601: When the RRC decides to page the UE in the light connection state, the identifier of the UE to be paged is filled in the paging message, and then the paging message is assembled.

Step 602: The RRC forwards the data packet of the paging message to the RLC, and indicates a paging message triggered by the RAN side of the message.

Step 603: The RLC performs TM transmission, and maps to the logical channel PCCH, generates an RLC PDU, and submits the RLC PDU to the MAC layer, and indicates that the RLC PDU is a paging message triggered by the RAN side;

Step 604: The MAC layer schedules the data packet, allocates time-frequency resources, and maps to the transport channel PCH, generates a MAC PDU, submits it to the PHY, and indicates that the PDCCH corresponding to the data packet needs to be scrambled by using the RAN-P-RNTI. ;

Step 605: The PHY layer performs processing such as encoding the MAC PDU according to the PCH, and performs scrambling on the PDCCH by using the RAN-P-RNTI according to the indication of the MAC; and then transmitting the signal through the wireless carrier.

FIG. 7 is a flowchart of a second example of a paging method according to an embodiment of the present invention, as shown in FIG. In the light connection state, the paging process on the UE side includes the following steps:

Step 701: The PHY of the UE monitors the PDCCH by using the RAN-P-RNTI at the paging moment. If the monitoring is successful, the corresponding data packet is processed according to the PCH, and is submitted to the MAC layer, and indicates the PDCCH corresponding to the data packet of the MAC. Is RAN-P-RNTI scrambling;

Step 702: The MAC layer decodes the data packet, maps it to the PCCH, and submits it to the RLC, and indicates that the RLC PDU is a paging message triggered by the RAN side.

Step 703: The RLC decodes according to the TM mode, submits to the RRC, and indicates that the message is a paging message triggered by the RAN side.

Step 704: After the RRC decoding, it is determined whether the paging message contains its own identity; if not, step 705 is performed; if it is included, step 706 is performed;

Step 705: Discard the message.

Step 706: The RRC initiates an RRC recovery process.

Here is an exception scenario.

Assume that a UE is in a light connection state, but the core network and the eNB have released the UE. When the UE has downlink data to reach the core network, the MME initiates a paging process, and the eNB sends a P-RNTI scrambled paging message.

The process on the eNB side is as follows:

The first step is: RRC determines whether the paging UE in the paging message sent by the MME is in an idle state, and if yes, proceeds to the third step, otherwise, proceeds to the second step;

Step 2: RRC releases the context information of the UE;

Step 3: Fill in the identifier of the UE to be paged in the paging message, and then assemble the paging message;

Step 4: The RRC forwards the data packet of the paging message to the RLC, and indicates the paging message triggered by the MME side of the message;

The fifth step: the RLC performs the TM transmission, and maps to the logical channel PCCH, generates an RLC PDU, and submits the RLC PDU to the MAC layer, and indicates that the RLC PDU is a paging message triggered by the MME side;

Step 6: The MAC layer schedules the data packet, allocates time-frequency resources, and maps to the transport channel PCH, generates a MAC PDU, submits it to the PHY, and indicates that the PDCCH corresponding to the data packet needs to be scrambled by the P-RNTI;

Step 7: The PHY layer performs processing such as encoding the MAC PDU according to the PCH, and performs scrambling on the PDCCH by using the P-RNTI according to the indication of the MAC; and then transmitting the signal through the wireless carrier.

The process on the UE side is as follows:

Step 1: The PHY monitors the PDCCH by using the RAN-P-RNTI and the P-RNTI at the paging moment. If the P-RNTI is successfully monitored, the corresponding data packet is decoded according to the PCH, and is submitted to the MAC layer, and is instructed. MAC The PDCCH corresponding to the data packet is P-RNTI scrambling;

Step 2: The MAC layer decodes the data packet, maps it to the PCCH, and submits it to the RLC, and indicates that the RLC PDU is a paging message triggered by the MME.

The third step: the RLC is decoded according to the TM mode, and is submitted to the RRC, and indicates that the message is a paging message triggered by the MME side;

Step 4: After RRC decoding, compare whether the paging message contains its own identifier; if not, go to the fifth step; if it does, go to the sixth step;

Step 5: Discard the message;

Step 6: Return to the IDLE state and indicate the NAS layer.

FIG. 8 is a schematic structural diagram of a structure group side of a paging apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes:

The scrambling unit 81 is configured to: when the paging message is triggered by the base station, the PDCCH carrying the paging message is scrambled by using the first RNTI, and the first RNTI and the second RNTI used by the core network element to trigger the paging message different;

The sending unit 82 is configured to send the PDCCH of the scrambled bearer paging message to the UE.

In the embodiment of the present invention, the device further includes:

The encapsulating unit (not shown) is configured to fill in the identifier of the UE to be paged in the paging message by using the RRC of the base station side;

An indicating unit (not shown) configured to: when the RRC transmits a paging message to the RLC, instructing the paging message to be triggered by the base station; when the RLC transmits the paging message to the MAC, indicating the seeking The call message is triggered by the base station.

In the embodiment of the present invention, the scrambling unit 81 is further configured to: when determining, by using the PHY of the base station side, that the paging message is a paging message triggered by the base station, using the first RNTI to perform the PDCCH carrying the paging message. Scrambled.

In practical applications, the functions implemented by each unit in the paging device may be implemented by a central processing unit (CPU) or a microprocessor (MPU, Micro Processor Unit) located in the paging device. Or digital signal processor (DSP, Digital Signal Processor), or Field Programmable Gate Array (FPGA) implementation.

FIG. 9 is a second schematic structural diagram of a paging device according to an embodiment of the present invention. As shown in FIG. 9, the device includes:

The receiving unit 91 is configured to receive the PDCCH of the scrambled bearer paging message sent by the base station;

The determining unit 92 is configured to: if the PDCCH is successfully descrambled by using the first RNTI, determine that the paging message in the PDCCH is triggered by the base station, where the first RNTI and the core network element trigger the paging message The two RNTIs are different.

In the embodiment of the present invention, the device further includes:

The descrambling unit 93 is configured to descramble the PDCCH by using the first RNTI by the PHY on the UE side.

In the embodiment of the present invention, the device further includes:

An indication unit (not shown) configured to: when the PHY on the UE side descrambles the PDCCH by using the first RNTI, indicating that the paging message is triggered by the base station to the MAC of the UE side; when the MAC of the UE side is to be found When the call message is transmitted to the RLC, the paging message is triggered by the base station; when the RLC of the UE side transmits the paging message to the RRC, the paging message is indicated to be triggered by the base station.

The recovery unit (not shown) is configured to determine, when the RRC of the UE side receives the paging message triggered by the base station, whether the UE identifier carried in the paging message is its own UE identifier; if the paging message carries If the UE identifier is its own UE identifier, RRC recovery is performed.

In practical applications, the functions implemented by the various units in the paging device can be implemented by a CPU, or an MPU, or a DSP, or an FPGA, etc., located in the paging device.

10 is a schematic structural side view of a paging system according to an embodiment of the present invention. As shown in FIG. 10, the device includes:

The base station 1001 is configured to: when the paging message is triggered by the base station 1001, the PDCCH carrying the paging message is scrambled by using the first RNTI; and the PDCCH of the scrambled bearer paging message is sent to the UE, where the first The RNTI is different from the second RNTI used by the core network element to trigger the paging message;

The UE 1002 is configured to receive the PDCCH of the scrambled bearer paging message sent by the base station 1001. If the PDCCH is descrambled successfully by using the first RNTI, determine that the paging message in the PDCCH is triggered by the base station 1001.

In the embodiment of the present invention, the base station 1001 is configured to: the RRC of the base station 1001 fills in the identifier of the to-be-patented UE 1002 in the paging message, and when the RRC transmits the paging message to the RLC, the paging message is indicated. Triggered by the base station 1001; when the RLC transmits a paging message to the medium access control layer MAC, the paging message is triggered by the base station 1001; When the PHY determines that the paging message is a paging message triggered by the base station 1001, the PDCCH carrying the paging message is scrambled by using the first RNTI.

In the embodiment of the present invention, the UE 1002 is specifically configured to: the PHY on the side of the UE 1002 uses the first RNTI to descramble the PDCCH.

In the embodiment of the present invention, the UE 1002 is specifically configured to: after the PHY of the UE 1002 side descrambles the PDCCH by using the first RNTI, the MAC message indicating to the UE 1002 side is triggered by the base station 1001; the UE 1002 When the MAC of the side transmits the paging message to the RLC, it indicates that the paging message is triggered by the base station 1001; when the RLC of the UE 1002 transmits the paging message to the RRC, the paging message is triggered by the base station 1001.

In the embodiment of the present invention, the UE 1002 is configured to: after receiving the paging message triggered by the base station 1001, the RRC of the UE 1002 determines whether the identifier of the UE 1002 carried in the paging message is its own UE 1002 identifier; If the UE 1002 carried in the paging message is identified as its own UE 1002 identifier, RRC recovery is performed.

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 stored, the computer program configured to perform a paging method according to an embodiment of the present invention.

The technical solutions described in the embodiments of the present invention may be arbitrarily arranged without conflict. combination.

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

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

In addition, each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention.

Industrial applicability

In the technical solution of the embodiment of the present invention, the base station side uses the first RNTI (that is, the new RNTI) to scramble the PDCCH carrying the paging message by using the paging message triggered by the base station side to distinguish the PDCCH. Whether the call message is triggered by the base station side or triggered by the core network element (such as the MME), and differentiates the two different paging messages, thereby avoiding the error when the UE is in the LC state. The meta-side triggering paging message is triggered as the base station side, thereby avoiding The disorder of the paging-free process. In the embodiment of the present invention, the trigger source of the paging message is distinguished by the method of scrambling the PDCCH without changing the paging message, and the existing network investment is protected, and the network hardware is not required to be changed, thereby saving the network maintenance cost.

Claims

A paging method, the method comprising:

When the base station determines that the paging message is triggered by the base station, the first radio network temporary identifier RNTI is used to scramble the physical downlink control channel PDCCH carrying the paging message, and the first RNTI and the core network element trigger the paging message. The second RNTI is different;

The base station sends the PDCCH of the scrambled bearer paging message to the UE.
The paging method according to claim 1, wherein the method further comprises:

The radio resource control layer RRC of the base station side fills in the identifier of the UE to be paged in the paging message, and when the RRC transmits the paging message to the radio link control layer RLC, the paging message is triggered by the base station;

When the RLC transmits the paging message to the medium access control layer MAC, it indicates that the paging message is triggered by the base station.
The paging method according to claim 2, wherein the base station determines that the physical downlink control channel PDCCH carrying the paging message is scrambled by using the first radio network temporary identifier RNTI when the paging message is triggered by the base station, include:

When the physical layer PHY on the base station side determines that the paging message is a paging message triggered by the base station, the PDCCH carrying the paging message is scrambled by using the first RNTI.
The paging method according to any one of claims 1 to 3, wherein the first RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.
A paging method, the method comprising:

Receiving, by the UE, the PDCCH of the scrambled bearer paging message sent by the base station;

If the UE successfully descrambles the PDCCH by using the first RNTI, determining that the paging message in the PDCCH is triggered by the base station, the first RNTI is different from the second RNTI used by the core network element to trigger the paging message.
The paging method according to claim 5, wherein the method further comprises:

After the PHY of the UE side descrambles the PDCCH by using the first RNTI, the MAC message indicating to the UE side is triggered by the base station;

When the MAC of the UE side transmits the paging message to the RLC, it indicates that the paging message is triggered by the base station;

When the RLC on the UE side transmits a paging message to the RRC, it indicates that the paging message is triggered by the base station.
The paging method according to claim 6, wherein the method further comprises:

After receiving the paging message triggered by the base station, the RRC of the UE side determines whether the UE identifier carried in the paging message is its own UE identifier.

If the UE identifier carried in the paging message is its own UE identifier, RRC recovery is performed.
The paging method according to any one of claims 5 to 7, wherein the new RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.
A paging device, the device comprising:

And the scrambling unit is configured to: when the paging message is triggered by the base station, use the first RNTI to scramble the PDCCH carrying the paging message, where the first RNTI is different from the second RNTI used by the core network element to trigger the paging message. ;

The sending unit is configured to send the PDCCH of the scrambled bearer paging message to the UE.
The paging device of claim 9, wherein the device further comprises:

The encapsulating unit is configured to fill in the identifier of the UE to be paged in the paging message by using the RRC of the base station side;

And an indicating unit, configured to: when the RRC transmits the paging message to the RLC, instructing the paging message to be triggered by the base station; when the RLC transmits the paging message to the MAC, indicating that the paging message is triggered by the base station .
The paging device according to claim 10, wherein said scrambling unit is further provided When the PHY that is determined by the base station side determines that the paging message is a paging message triggered by the base station, the PDCCH carrying the paging message is scrambled by using the first RNTI. The paging apparatus according to any one of claims 10 to 12, wherein the first RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.
A paging device, the device comprising:

a receiving unit, configured to receive a PDCCH of the scrambled bearer paging message sent by the base station;

a determining unit, configured to: if the PDCCH is successfully descrambled by using the first RNTI, determining that the paging message in the PDCCH is triggered by the base station, where the first RNTI and the core network element trigger the paging message RNTI is different.
The paging device of claim 12, wherein the device further comprises:

The indication unit is configured to: when the PHY of the UE side successfully descrambles the PDCCH by using the first RNTI, indicating that the paging message is triggered by the base station to the MAC of the UE side; when the MAC of the UE side transmits the paging message to the RLC, Instructing the paging message to be triggered by the base station; when the RLC on the UE side transmits the paging message to the RRC, indicating that the paging message is triggered by the base station.
The paging device of claim 13 wherein said device further comprises:

And a descrambling unit configured to descramble the PDCCH by using the first RNTI or the second RNTI by using the PHY of the UE side.
The paging device of claim 14, wherein the device further comprises:

The recovery unit is configured to: when the RRC of the UE side receives the paging message triggered by the base station, determine whether the UE identifier carried in the paging message is its own UE identifier; if the UE identifier carried in the paging message is its own UE identifier , then perform RRC recovery.
The paging apparatus according to any one of claims 12 to 15, wherein the new RNTI is set to any one of hexadecimal numbers FFF4 to FFF9.
A paging system, the system comprising:

a base station configured to determine that the paging message is triggered by the base station, using the first RNTI The PDCCH carrying the paging message is scrambled; the PDCCH carrying the paging message is sent to the UE, and the first RNTI is different from the second RNTI used by the core network element to trigger the paging message;

The UE is configured to receive the PDCCH of the scrambled bearer paging message sent by the base station; if the PDCCH is descrambled successfully by using the first RNTI, determine that the paging message in the PDCCH is triggered by the base station.
The paging system according to claim 17, wherein the base station is specifically configured to: the RRC of the base station side fills in the identifier of the UE to be paged in the paging message, and when the RRC transmits the paging message to the RLC, the indication station The paging message is triggered by the base station; when the RLC transmits the paging message to the medium access control layer MAC, the paging message is triggered by the base station; and the PHY determined by the base station side is triggered by the base station. When the paging message is used, the PDCCH carrying the paging message is scrambled by using the first RNTI.
The paging system according to claim 17, wherein the UE is specifically configured to: after the PHY of the UE side descrambles the PDCCH by using the first RNTI, the MAC message to the UE side indicates that the paging message is triggered by the base station. When the MAC of the UE side transmits the paging message to the RLC, the paging message is triggered by the base station; when the RLC of the UE side transmits the paging message to the RRC, the paging message is triggered by the base station.
The paging system according to claim 19, wherein the UE is specifically configured to: after receiving the paging message triggered by the base station, the RRC of the UE side determines whether the UE identifier carried in the paging message is its own UE identifier. If the UE identifier carried in the paging message is its own UE identifier, RRC recovery is performed.
A computer storage medium having stored therein computer executable instructions configured to perform the paging method of any of claims 1-4, or any of claims 5-8 The paging method described in the item.