CN112544114B

CN112544114B - Method, device, communication equipment and storage medium for scrambling downlink control information

Info

Publication number: CN112544114B
Application number: CN202080003437.4A
Authority: CN
Inventors: 刘洋
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2023-10-10
Anticipated expiration: 2040-11-19
Also published as: WO2022104657A1; CN112544114A

Abstract

Embodiments of the present disclosure relate to a method, apparatus, communication device, and storage medium for scrambling Downlink Control Information (DCI), in response to DCI scheduling a paging message of the same type, scrambling a Cyclic Redundancy Check (CRC) of the DCI using a scrambling identity associated with a Radio Resource Control (RRC) connection state paging message of a User Equipment (UE) to which the paging message is associated.

Description

Method, device, communication equipment and storage medium for scrambling downlink control information

Technical Field

The present application relates to the field of wireless communication technology, but is not limited to the field of wireless communication technology, and in particular, to a method, an apparatus, a communication device, and a storage medium for scrambling downlink control information (DCI, downlink Control Information).

Background

Fifth generation (5G, 5) ^th Generation) in a cellular mobile communication system, a procedure for receiving a paging message by a User Equipment (UE) includes: and detecting a physical downlink control channel (PDCCH, physical Downlink Control Channel) in a search space corresponding to the Paging Occasion (PO, paging scheduling), analyzing DCI carrying Paging scheduling information, and receiving and demodulating the Paging message by adopting a physical downlink shared channel (PDSCH, physical Downlink Share Channel) resource based on the scheduling of the Paging scheduling information if the DCI is successfully analyzed. For a UE operating with a discontinuous reception mechanism (DRX, discontinuous Reception), if the Identity (ID) of the received paging message is UE itself, initiating a connection, otherwise continuing to sleep; If no DCI is parsed, it indicates that there is no paging message in the wake-up (DRX_on) period.

Disclosure of Invention

In view of this, embodiments of the present disclosure provide a DCI scrambling method, apparatus, communication device, and storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a DCI scrambling method, where the method is applied to a base station, the method including:

in response to a DCI scheduling a paging message of the same type, a cyclic redundancy check (CRC, cyclic Redundancy Check) of the DCI is scrambled with a scrambling identity associated with a radio resource control (RRC, radio Resource Control) connection state paging message of a user equipment UE with which the paging message is associated.

In one embodiment, the scrambling the CRC of the DCI with a scrambling identity associated with an RRC connection state of the UE associated with the paging message includes:

and in response to the UE being in an idle state, scrambling a CRC of the DCI with a first identity, wherein the first identity is different from a Paging radio network temporary identity (P-RNTI, paging-Radio Network Temporary Identity).

And in response to the UE being in a state other than the idle state, scrambling the CRC of the DCI by adopting the P-RNTI.

In one embodiment, the method further comprises:

and responding to the paging messages of different types scheduled by the DCI, and scrambling CRC of the DCI by adopting P-RNTI.

In one embodiment, the method further comprises:

scrambling the CRC of DCI carrying the paging early indication PEI by adopting the scrambling identification; wherein the PEI is used for indicating whether to monitor the preset PO.

In one embodiment, the DCI is located within a PO or outside the PO.

According to a second aspect of an embodiment of the present disclosure, there is provided a downlink control information DCI scrambling method, where the method is applied to a base station, and the method includes:

in response to a DCI scheduling a paging message of a same type, a CRC of the DCI is scrambled with a scrambling identity associated with the type of the paging message.

In one embodiment, the scrambling the CRC of the DCI with a scrambling identity associated with the type of paging message includes:

and in response to the paging message being a core network paging message (CN paging), scrambling the CRC of the DCI by adopting a second identifier, wherein the second identifier is different from the P-RNTI.

scrambling a CRC of the DCI with a third identity in response to the paging message being an access network paging message (RAN paging); wherein the third identity is different from the second identity and the P-RNTI.

In one embodiment, the method further comprises:

scrambling a CRC of DCI carrying a paging early indication (PEI, paging Early Indication) with the scrambling identity; wherein the PEI is used for indicating whether to monitor the preset PO.

In one embodiment, the DCI is located within a PO or outside the PO.

According to a third aspect of embodiments of the present disclosure, there is provided a DCI descrambling method, where the method is applied to a user equipment UE, the method including:

and according to the RRC connection state of the UE, descrambling the paging message by adopting a scrambling identifier associated with the RRC connection state of the UE to carry out CRC (cyclic redundancy check) of DCI for scheduling the paging message.

In one embodiment, the descrambling, according to the state of the UE, the CRC of the DCI for scheduling the paging message using the identity associated with the state of the UE includes:

and in response to the UE being in an idle state, descrambling CRC of the DCI by adopting a first identifier, wherein the first identifier is different from the P-RNTI.

In one embodiment, the method further comprises: and descrambling CRC of the DCI by adopting the P-RNTI.

and in response to the UE being in a state outside the idle state, descrambling CRC of the DCI by adopting the P-RNTI.

descrambling CRC of the DCI by adopting the first identifier and the second identifier respectively in response to the UE being in an inactive state; wherein the second identity is different from the first identity and the P-RNTI.

And in response to the UE being in a connection state, descrambling CRC of the DCI by adopting the P-RNTI.

In one embodiment, the method further comprises:

and descrambling the CRC of the DCI carrying the paging early indication PEI by adopting an identifier associated with the state of the UE.

In one embodiment, the method further comprises:

and in response to successful descrambling of the CRC of the DCI carrying the PEI, determining whether to monitor a preset PO according to the PEI.

According to a fourth aspect of embodiments of the present disclosure, there is provided a DCI scrambling apparatus, where the apparatus is applied to a base station, the apparatus including: a first scrambling module, wherein,

the first scrambling module is configured to respond to DCI to schedule the paging message of the same type, and scramble CRC of the DCI by adopting a scrambling identifier associated with RRC connection state paging message of User Equipment (UE) associated with the paging message.

In one embodiment, the first scrambling module includes:

and a first scrambling sub-module configured to scramble the CRC of the DCI with a first identity in response to the UE being in an idle state, wherein the first identity is different from the P-RNTI.

In one embodiment, the first scrambling module includes:

And a second scrambling sub-module configured to scramble the CRC of the DCI with the P-RNTI in response to the UE being in a state other than the idle state.

In one embodiment, the apparatus further comprises:

and a second scrambling module configured to use a P-RNTI to scramble the CRC of the DCI in response to the DCI scheduling the paging messages of different types.

In one embodiment, the apparatus further comprises:

a third scrambling module configured to scramble a CRC of DCI carrying the paging early indication PEI using the scrambling identifier; wherein the PEI is used for indicating whether to monitor the preset PO.

In one embodiment, wherein the DCI is located inside a PO or outside the PO.

According to a fifth aspect of embodiments of the present disclosure, there is provided a DCI scrambling apparatus, where the apparatus is applied to a base station, the apparatus including: a fourth scrambling module, wherein,

the fourth scrambling module is configured to respond to DCI to schedule the paging message of the same type and scramble the CRC of the DCI by adopting a scrambling identifier associated with the type of the paging message.

In one embodiment, the fourth scrambling module includes:

and a third scrambling sub-module configured to, in response to the paging message being a core network paging message CN paging, scramble the CRC of the DCI with a second identifier, where the second identifier is different from the P-RNTI.

In one embodiment, the fourth scrambling module includes:

a fourth scrambling sub-module configured to, in response to the paging message being an access network paging message RAN paging, scramble the CRC of the DCI using a third identifier; wherein the third identity is different from the second identity and the P-RNTI.

In one embodiment, the apparatus further comprises:

and a fifth scrambling module configured to use a P-RNTI to scramble the CRC of the DCI in response to the DCI scheduling the paging messages of different types.

In one embodiment, the apparatus further comprises:

a sixth scrambling module configured to scramble a CRC of DCI carrying the paging early indication PEI using the scrambling identifier; wherein the PEI is used for indicating whether to monitor the preset PO.

In one embodiment, the DCI is located within a PO or outside the PO.

According to a sixth aspect of embodiments of the present disclosure, there is provided a DCI descrambling apparatus, where the apparatus is applied to a user equipment UE, the apparatus including: a first descrambling module, wherein,

the first descrambling module is configured to descramble a paging message by using a scrambling identifier associated with the RRC connection state of the UE according to the RRC connection state of the UE.

In one embodiment, the first descrambling module comprises:

and a first descrambling sub-module configured to descramble the CRC of the DCI by adopting a first identifier in response to the UE being in an idle state, wherein the first identifier is different from the P-RNTI.

In one embodiment, the apparatus further comprises:

and a second descrambling module configured to descramble the CRC of the DCI by adopting the P-RNTI.

In one embodiment, the first descrambling module comprises:

and the second descrambling submodule is configured to descramble the CRC of the DCI by adopting the P-RNTI in response to the state that the UE is outside the idle state.

In one embodiment, the first descrambling module comprises:

a third descrambling sub-module configured to, in response to the UE being in an inactive state, respectively descramble a CRC of the DCI using the first identifier and the second identifier; wherein the second identity is different from the first identity and the P-RNTI.

In one embodiment, the first descrambling module comprises:

and a fourth descrambling sub-module configured to descramble the CRC of the DCI by adopting the P-RNTI in response to the UE being in a connected state.

In one embodiment, the apparatus further comprises:

And a third descrambling module configured to descramble a CRC of DCI carrying paging early indication PEI by adopting an identifier associated with the state of the UE.

In one embodiment, the apparatus further comprises:

and the determining module is configured to respond to successful descrambling of the CRC of the DCI carrying the PEI, and determine whether to monitor the preset PO according to the PEI.

According to a seventh aspect of embodiments of the present disclosure, there is provided a communication device apparatus, including a processor, a memory, and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the steps of the DCI scrambling method according to the first or second aspect, or the DCI descrambling method according to the third aspect, when the executable program is executed by the processor.

According to an eighth aspect of embodiments of the present disclosure, there is provided a storage medium having stored thereon an executable program, wherein the executable program when executed by a processor implements the steps of the DCI scrambling method according to the first or second aspect, or the DCI descrambling method according to the third aspect.

According to the DCI scrambling method, the device, the communication equipment and the storage medium provided by the embodiment of the disclosure, the base station responds to the DCI to schedule the paging message of the same type, and the scrambling identifier associated with the RRC connection state paging message of the UE associated with the paging message is adopted to scramble the CRC of the DCI. In this way, scrambling identification associated with RRC connection state of the UE is adopted to scramble the CRC of the DCI, so that the DCI scrambled by the CRC of different scrambling identifications is sent to the UE in different RRC connection states, the UE can only descramble the CRC associated with the UE, so as to reduce analysis of irrelevant DCI, thereby saving processing resources of the UE and further saving electric quantity

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the embodiments of the invention.

Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment;

fig. 2 is a flow diagram illustrating a DCI scrambling method according to an example embodiment;

fig. 3 is a flow diagram illustrating another DCI scrambling method according to an example embodiment;

fig. 4 is a flow diagram illustrating yet another DCI scrambling method according to an example embodiment;

fig. 5 is a flow diagram illustrating yet another DCI scrambling method according to an example embodiment;

fig. 6 is a flow diagram illustrating a DCI descrambling method according to an example embodiment;

fig. 7 is a flow chart illustrating another DCI descrambling method according to an example embodiment;

fig. 8 is a block diagram of a DCI scrambling device according to an example embodiment;

fig. 9 is a block diagram of another DCI scrambling device according to an example embodiment;

Fig. 10 is a block diagram of a DCI descrambling apparatus according to an example embodiment;

fig. 11 is a block diagram illustrating an apparatus for DCI scrambling or DCI descrambling according to an example embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the invention as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

Referring to fig. 1, a schematic structural diagram of a wireless communication system according to an embodiment of the disclosure is shown. As shown in fig. 1, the wireless communication system is a communication system based on a cellular mobile communication technology, and may include: a number of terminals 11 and a number of base stations 12.

Where the terminal 11 may be a device providing voice and/or data connectivity to a user. The terminal 11 may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and the terminal 11 may be an internet of things terminal such as a sensor device, a mobile phone (or "cellular" phone) and a computer with an internet of things terminal, for example, a stationary, portable, pocket, hand-held, computer-built-in or vehicle-mounted device. Such as a Station (STA), subscriber unit (subscriber unit), subscriber Station (subscriber Station), mobile Station (mobile Station), mobile Station (mobile), remote Station (remote Station), access point, remote terminal (remote terminal), access terminal (access terminal), user equipment (user terminal), user agent (user agent), user device (user equipment), or user terminal (UE). Alternatively, the terminal 11 may be an unmanned aerial vehicle device. Alternatively, the terminal 11 may be a vehicle-mounted device, for example, a car-driving computer having a wireless communication function, or a wireless communication device externally connected to the car-driving computer. Alternatively, the terminal 11 may be a roadside device, for example, a street lamp, a signal lamp, or other roadside devices having a wireless communication function.

The base station 12 may be a network-side device in a wireless communication system. Wherein the wireless communication system may be a fourth generation mobile communication technology (the 4th generation mobile communication,4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; alternatively, the wireless communication system may be a 5G system, also known as a New Radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be a next generation system of the 5G system. Among them, the access network in the 5G system may be called NG-RAN (New Generation-Radio Access Network, new Generation radio access network). Or, an MTC system.

Wherein the base station 12 may be an evolved base station (eNB) employed in a 4G system. Alternatively, the base station 12 may be a base station (gNB) in a 5G system employing a centralized and distributed architecture. When the base station 12 employs a centralized and distributed architecture, it typically includes a Centralized Unit (CU) and at least two Distributed Units (DUs). A protocol stack of a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer, a radio link layer control protocol (Radio Link Control, RLC) layer, and a medium access control (Media Access Control, MAC) layer is provided in the centralized unit; a Physical (PHY) layer protocol stack is provided in the distribution unit, and the specific implementation of the base station 12 is not limited by the embodiment of the present disclosure.

A wireless connection may be established between the base station 12 and the terminal 11 over a wireless air interface. In various embodiments, the wireless air interface is a fourth generation mobile communication network technology (4G) standard-based wireless air interface; or, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; alternatively, the wireless air interface may be a wireless air interface based on a 5G-based technology standard of a next generation mobile communication network.

In some embodiments, an E2E (End to End) connection may also be established between terminals 11. Such as V2V (vehicle to vehicle, vehicle-to-vehicle) communications, V2I (vehicle to Infrastructure, vehicle-to-road side equipment) communications, and V2P (vehicle to pedestrian, vehicle-to-person) communications among internet of vehicles communications (vehicle to everything, V2X).

In some embodiments, the above wireless communication system may further comprise a network management device 13.

Several base stations 12 are connected to a network management device 13, respectively. The network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity, MME) in an evolved packet core network (Evolved Packet Core, EPC). Alternatively, the network management device may be other core network devices, such as a Serving GateWay (SGW), a public data network GateWay (Public Data Network GateWay, PGW), a policy and charging rules function (Policy and Charging Rules Function, PCRF) or a home subscriber server (Home Subscriber Server, HSS), etc. The embodiment of the present disclosure is not limited to the implementation form of the network management device 13.

Execution bodies to which embodiments of the present disclosure relate include, but are not limited to: a UE such as a mobile phone terminal supporting cellular mobile communication, and a base station.

One application scenario of the embodiments of the present disclosure is that, at present, paging messages may be classified into core network paging messages (CN paging) and access network paging messages (RAN paging) according to the source of the paging message. For idle state UEs, only CN paging will be received. For the non-active UE, if the context information reserved by the base station is normal, RAN paging is received, and if the context information is abnormal, CN paging is received.

In the related art, CRC of DCI carrying paging scheduling information corresponding to CN paging and/or RAN paging is scrambled by using P-RNTI, and different scrambling modes are not adopted for UE in different RRC connection states. Thus, regardless of the type of paging message that the DCI is scheduling, the DCI may be descrambled and decoded regardless of the state the UE is in. For example, the UE in the connected state may also descramble DCI for scheduling CN paging, and the receiving object of CN paging is not the UE in the connected state, so that system resources of the UE are consumed, and power consumption of the UE is improved.

As shown in fig. 2, the present exemplary embodiment provides a DCI scrambling method, which may be applied to a base station of a cellular mobile communication system, including:

Step 201: and responding to the paging message of the same type scheduled by DCI, and scrambling CRC of the DCI by adopting scrambling identification associated with RRC connection state paging message of UE associated with the paging message.

Here, the UE may be a mobile terminal or the like that performs wireless communication using a cellular mobile communication technology. The base station may be a communication device providing an access network interface to the UE in a cellular mobile communication system.

The communication network may send paging messages to UEs in idle, inactive and connected states. The paging procedure may be triggered by the core network and send paging messages to the UE through the base station, or the paging procedure may be triggered by the access network and send paging messages to the UE. Paging message for notifying system information and notifying UE to receive information such as earthquake and tsunami warning system (Earthquake and Tsunami Warning System, ETWS) or commercial mobile alert service (Commercial Mobile Alert Service, CMAS).

The paging message may be transmitted using PDSCH transmission resources. The base station may schedule the paging message through DCI, i.e., indicate PDSCH transmission resources for transmitting the paging message through DCI. The DCI may be transmitted using PDCCH transmission resources. The UE may parse PDSCH transmission resources from the DCI and receive paging messages using the PDSCH transmission resources.

If the DCI is used to schedule the same type of Paging message, i.e. the DCI is only used to schedule CN Paging or RAN Paging, the base station may scramble the CRC of the DCI with a scrambling identity associated with the RRC connection state of the user equipment UE with which the Paging message is associated. The UE associated with the paging message may be the target UE to which the paging message is sent.

The base station may set different scrambling identities for the RRC connection state in which the UE is located, e.g. set different scrambling identities for the UE in idle state and the UE in connected state. Thus, when the DCI is only used to schedule paging messages, such as CN paging, to idle UEs, scrambling may be performed using scrambling identities associated with idle UEs. When the UE performs CRC descrambling of DCI, if the UE is in a connection state, the UE cannot perform descrambling, the UE considers that no paging exists, further subsequent DCI decoding, paging message analysis and the like are not performed, and therefore processing resources of the UE are saved, and electric quantity is saved.

In this way, scrambling identification associated with the RRC connection state of the UE is adopted to scramble the CRC of the DCI, so that the DCI scrambled by the CRC of different scrambling identifications is sent to the UE in different RRC connection states, the UE can only descramble the CRC of the scrambling identification associated with the UE state, analysis of irrelevant DCI is reduced, and therefore processing resources of the UE are saved, and electric quantity is saved.

If the target UE for sending the DCI is in an idle state, the paging message scheduled by the base station is CN paging, and the base station may scramble the CRC of the DCI by using a scrambling identifier associated with the idle state, i.e., a first identifier. Here, the first identity may be a newly set RNTI, such as CN-RNTI. The first identity is different from the P-RNTI.

When the UE in the idle state performs CRC descrambling of the DCI, since the UE is in the idle state, the UE may perform descrambling using a first identifier associated with the idle state. Such as descrambling with CN-RNTI.

When the UE in the non-idle state performs CRC descrambling of DCI, the UE can perform descrambling by adopting a scrambling identifier different from the first identifier, so that the descrambling cannot be successfully performed, the UE considers that no paging exists, further subsequent DCI decoding, paging message analysis and the like are not performed, thereby saving the processing resources of the UE and further saving the electric quantity.

In the related art, the base station scrambles the paging messages of different types by using the P-RNTI. For compatibility with the related art base station, the UE may descramble with the first identity and the P-RNTI at the same time or first sequentially with the first identity and the P-RNTI. Thus, the compatibility of the UE to different scrambling modes can be improved.

If the sending target UE of the Paging message is in a non-idle state, such as a connection state or a non-active state, and the Paging message scheduled by the base station may be CN Paging or RAN Paging, the base station may use the P-RNTI to scramble the CRC of the DCI.

When the UE in the non-idle state performs CRC descrambling of DCI, the UE can descramble by adopting the P-RNTI associated with the self RRC connection state. Thus, the base station can respectively send DCI scrambled by CRC by adopting different scrambling identifiers to the idle state UE and the non-idle state UE. The UE can only descramble CRC associated with the self state, so that analysis of irrelevant DCI is reduced, and therefore, the processing resource of the UE is saved, and the electric quantity is further saved.

In one embodiment, as shown in fig. 3, the method includes:

step 301: and responding to the paging message of the same type scheduled by DCI, and scrambling CRC of the DCI by adopting scrambling identification associated with RRC connection state paging message of UE associated with the paging message.

Step 302: and responding to the paging messages of different types scheduled by the DCI, and scrambling CRC of the DCI by adopting P-RNTI.

If the DCI is used to schedule different types of paging messages simultaneously, the base station may use the P-RNTI in the related art for CRC scrambling if CN paging and RAN paging are scheduled simultaneously.

After the UE attempts to descramble by using the first identifier, if the descrambling fails, the UE can use the P-RNTI to perform CRC descrambling. Therefore, the UE can also successfully descramble when the DCI simultaneously exists the CN paging and the RAN paging, the missing condition of the DCI is reduced, and the communication reliability is improved.

In one embodiment, the method further comprises:

Here, PEI is used to indicate whether the UE is listening to DCI at the PO. Since paging messages scheduled by DCI in one PO are not necessarily targeted to all UEs. Thus, DCI carrying PEI may be scrambled based on the RRC connection state of the UE or the type of paging message scheduled by the DCI. The DCI carrying the PEI may be located outside, and the PEI may indicate whether the UE listens to the PO.

The base station may set different scrambling identities for the RRC connection state in which the UE is located, e.g. set different scrambling identities for the UE in idle state and the UE in connected state. Thus, when DCI in the PO is only used to schedule paging messages sent to UEs in a non-idle state, for UEs in an idle state, the base station may scramble DCI carrying PEI with a scrambling identity associated with the non-idle state. The PEI may indicate that the non-idle state UE does not listen or listen to the PO. The non-idle state UE uses scrambling identification associated with the RRC connection state of the UE to descramble DCI carrying PEI, and determines the indication of PEI, namely does not monitor or monitor PO, thereby saving the processing resources of the UE and further saving the electric quantity. And the idle state UE can not descramble the DCI carrying PEI, so that the UE can select to not monitor the PO by default, thereby saving the processing resources of the UE and further saving the electric quantity. The idle UE may also choose to monitor the PO by default and obtain the paging message.

The base station may set different scrambling identifiers for different types of paging messages, e.g., DCI in PO is only used to schedule CN paging, and the base station may scramble DCI carrying PEI with the scrambling identifier associated with CN paging. Since both the idle state UE and the inactive state UE may receive CN Paging, scrambling identifiers associated with CN Paging may be used to descramble DCI carrying PEI, so as to determine the indication content of PEI. If the UE cannot scramble the DCI carrying PEI, the UE can default to not monitor the PO, so that the processing resource of the UE is saved, and the electric quantity is further saved.

In one embodiment, the DCI is located within a PO or outside the PO.

Here, DCI scheduling the paging message may be inside the PO or outside the PO. The UE may monitor and descramble DCI inside the PO, or may monitor and descramble DCI outside the PO.

As shown in fig. 4, the present exemplary embodiment provides a DCI scrambling method, which may be applied to a base station of a cellular mobile communication system, including:

step 401: in response to a DCI scheduling a paging message of a same type, a CRC of the DCI is scrambled with a scrambling identity associated with the type of the paging message.

If the DCI is used to schedule the same type of Paging message, i.e., the Paging scheduling information in the DCI is used only to schedule CN Paging or RAN Paging, the base station may scramble the CRC of the DCI with a scrambling identity associated with the type of Paging message. Here, the Paging message may be classified as CN Paging or RAN Paging by type.

The base station may set different scrambling identities for different types of paging messages. For example, different scrambling identifications may be set for CN Paging or RAN Paging. For example, when paging scheduling information contained in DCI is used only to schedule CN paging, scrambling may be performed using scrambling identities associated with idle-state UEs. When the UE performs CRC descrambling of the DCI, the UE may determine the type of the paging message that may be received based on the UE's own state, and perform descrambling using a scrambling identifier associated with the type of the paging message.

For example, when paging scheduling information included in DCI is only used to schedule CN paging, the DCI may be scrambled with a scrambling identifier associated with CN paging, and if the UE is in an idle state, the UE may determine that the received paging message is CN paging, so that descrambling may be performed with the scrambling identifier associated with CN paging, and thus receiving the paging message. If the UE is in an idle state, the UE can determine that the paging message received by the UE is RAN paging, so that scrambling identification associated with the RAN paging can be used for descrambling, DCI cannot be successfully descrambled, subsequent DCI decoding, paging message analysis and the like are not performed, thereby saving processing resources of the UE and further saving electric quantity.

In this way, scrambling identification associated with the type of paging message is adopted to scramble the CRC of DCI, so that DCI scrambled by the CRC of different scrambling identifications is sent to the UE in different RRC connection states, the UE can only descramble the CRC associated with the UE state, analysis of irrelevant DCI is reduced, and therefore processing resources of the UE are saved, and electric quantity is saved.

and responding to the paging message as a core network paging message CN paging, and scrambling the CRC of the DCI by adopting a second identifier, wherein the second identifier is different from the P-RNTI.

The base station may set different scrambling identifications for CN and RAN paging, respectively. For example, the second identity may be set for CN Paging and the third identity may be set for RAN Paging. For example: the second identity may be a CN-RNTI and the third identity may be a RAN-RNTI.

When paging scheduling information contained in DCI is used only to schedule CN paging, CN-RNTI may be used for scrambling. The idle state UE may determine, based on the UE's own state, that the type of paging message that may be received is CN paging, and may use the CN-RNTI for descrambling. The non-active UE may descramble DCI by using the CN-RNTI and the CN-RNTI because both the CN and the RAN are possible to receive. Thus, the idle state UE and the non-active state UE can successfully analyze the CN paging. Here, the UE may descramble DCI using CN-RNTI and RAN-RNTI, or may descramble DCI using CN-RNTI and RAN-RNTI simultaneously or may descramble DCI using CN-RNTI and RAN-RNTI sequentially.

scrambling the CRC of the DCI by adopting a third identifier in response to the paging message serving as an access network paging message RAN; wherein the third identity is different from the second identity and the P-RNTI.

When paging scheduling information contained in DCI is used only to schedule RAN paging, RAN-RNTI may be used for scrambling. The idle state UE determines that the type of the paging message which is possibly received is CN paging based on the state of the UE, and the RAN-RNTI is adopted for descrambling, so that the idle state UE cannot be analyzed, thereby saving the processing resources of the idle state UE and further saving the electric quantity. The non-active UE can successfully analyze the RAN paging by descrambling DCI with the CN-RNTI and the RAN-RNTI because the CN paging and the RAN paging are possible to be received. Here, the UE may descramble DCI using CN-RNTI and RAN-RNTI, or may descramble DCI using CN-RNTI and RAN-RNTI simultaneously or may descramble DCI using CN-RNTI and RAN-RNTI sequentially.

Therefore, the CRC scrambling is carried out on different DCIs by adopting different scrambling identifications, the UE can only carry out the CRC descrambling on the DCIs associated with the self state, and the analysis of irrelevant DCIs is reduced, so that the processing resources of the UE are saved, and the electric quantity is further saved.

In one embodiment, as shown in fig. 5, the method includes:

step 501: in response to a DCI scheduling a paging message of a same type, a CRC of the DCI is scrambled with a scrambling identity associated with the type of the paging message.

Step 502: and responding to the paging messages of different types scheduled by the DCI, and scrambling CRC of the DCI by adopting P-RNTI.

If the DCI is used to schedule different types of paging messages, i.e., the DCI is scheduled at both CN and RAN paging, the base station may use the P-RNTI of the related art for CRC scrambling.

After attempting to descramble with the CN-RNTI and/or the RAN-RNTI, the UE may use the P-RNTI for CRC descrambling if the descrambling fails. Therefore, the UE can also successfully descramble when the DCI simultaneously exists the CN paging and the RAN paging, the missing condition of the DCI is reduced, and the communication reliability is improved.

In one embodiment, the method further comprises:

In one embodiment, the DCI is located within a PO or outside the PO.

As shown in fig. 6, the present exemplary embodiment provides a DCI descrambling method, which may be applied to a UE of a cellular mobile communication system, including:

step 601: and according to the RRC connection state of the UE, descrambling the paging message by adopting a scrambling identifier associated with the RRC connection state of the UE to carry out CRC (cyclic redundancy check) of DCI for scheduling the paging message.

The communication network may send paging messages to UEs in idle, inactive and connected states. The paging procedure may be triggered by the core network and send paging messages to the UE through the base station, or the paging procedure may be triggered by the access network and send paging messages to the UE. Paging messages for informing the system information, informing the UE of receiving the earthquake and tsunami warning system (Earthquake and Tsunami Warning System, ETWS) or the commercial mobile alert service (Commercial Mobile Alert Serv paging messages may be transmitted using PDSCH transmission resources.

The base station may schedule the paging message through DCI, i.e., indicate PDSCH transmission resources for transmitting the paging message through DCI. The DCI may be transmitted using PDCCH transmission resources. The UE may parse PDSCH transmission resources from the DCI and receive paging messages using the PDSCH transmission resources.

In this way, scrambling identification associated with the RRC connection state of the UE or the type of the paging message is adopted to scramble the CRC of the DCI, so that the DCI which is scrambled by adopting different scrambling identifications is sent by the UE in different RRC connection states, the UE can only descramble the CRC associated with the UE state, and analysis of irrelevant DCI is reduced, thereby saving processing resources of the UE and further saving electric quantity.

If the sending target UE of the paging scheduling information is in an idle state, and the paging information scheduled by the paging scheduling information of the base station is CN paging, the base station can scramble the CRC of the DCI by adopting a scrambling identifier associated with the idle state, namely a first identifier. Here, the first identity may be a newly set RNTI, such as CN-RNTI. The first identity is different from the P-RNTI.

When the UE in the idle state performs CRC descrambling of the DCI, since the UE is in the idle state, the UE may perform descrambling using a first identifier associated with the idle state.

If the target UE for sending Paging schedule information is in a non-idle state, such as a connection state or a non-active state, and the Paging message scheduled by the Paging schedule information of the base station may be CN Paging or RAN Paging, the base station may use the P-RNTI to scramble the CRC of the DCI.

The base station may set different scrambling identifications for CN and RAN paging, respectively. For example, a first identity may be set for CN Paging and a second identity may be set for RAN Paging. For example: the second identity may be a CN-RNTI and the third identity may be a RAN-RNTI.

For UEs in a connected state, the base station may perform CRC scrambling using the P-RNTI in the related art.

The UE may use the P-RNTI for CRC descrambling. If the DCI adopts the CN-RNTI and the RAN-RNTI to carry out CRC scrambling, the descrambling cannot be successful, so that the analysis of irrelevant DCI is reduced, the processing resources of the UE are saved, and the electric quantity is further saved.

In one embodiment, as shown in fig. 7, the method includes:

step 701: and according to the RRC connection state of the UE, descrambling the paging message by adopting a scrambling identifier associated with the RRC connection state of the UE to carry out CRC (cyclic redundancy check) of DCI for scheduling the paging message.

Step 702: and descrambling the CRC of the DCI carrying the PEI by adopting an identifier associated with the state of the UE.

In one embodiment, the method further comprises: and in response to successful descrambling of the CRC of the DCI carrying the PEI, determining whether to monitor a preset PO according to the PEI.

The base station may set different scrambling identities for the RRC connection state in which the UE is located, e.g. set different scrambling identities for the UE in idle state and the UE in connected state. Thus, when paging scheduling information contained in DCI in PO is only used to schedule paging messages sent to UEs in a non-idle state, for UEs in an idle state, the base station may scramble DCI carrying PEI with a scrambling identifier associated with the non-idle state. The PEI may indicate that the non-idle state UE does not listen or listen to the PO. The non-idle state UE uses scrambling identification associated with the RRC connection state of the UE to descramble DCI carrying PEI, and determines the indication of PEI, namely does not monitor or monitor PO, thereby saving the processing resources of the UE and further saving the electric quantity. And the idle state UE can not descramble the DCI carrying PEI, so that the UE can select to not monitor the PO by default, thereby saving the processing resources of the UE and further saving the electric quantity. The idle UE may also choose to monitor the PO by default and obtain the paging message.

The base station may set different scrambling identifiers for different types of paging messages, for example, paging scheduling information included in DCI in PO is only used to schedule CN paging, and the base station may scramble DCI carrying PEI using a scrambling identifier associated with CN paging. Since both the idle state UE and the inactive state UE may receive CN Paging, scrambling identifiers associated with CN Paging may be used to descramble DCI carrying PEI, so as to determine the indication content of PEI. If the UE cannot scramble the DCI carrying PEI, the UE can default to not monitor the PO, so that the processing resource of the UE is saved, and the electric quantity is further saved.

A specific example is provided below in connection with any of the embodiments described above:

the communication system defines two new RNTIs for idle state UE/non-active state UE respectively for the case where paging scheduling information in DCI only schedules RAN paging or CN paging.

When only CN scrambling is performed for some type of idle UE in one PO, the base station uses a new CRC scrambling identifier for CN scrambling, for example: PRNTI-CN.

The idle state UE decodes the paging PDCCH by using the new CRC scrambling identifications, namely PRNTI-CN and P-RNTI;

the non-active UE uses the P-RNTI without using the PRNTI-CN to descramble, so that the paging PDCCH is not detected, and the UE is considered to have no paging, thereby omitting the steps of decoding DCI and analyzing paging information by the PDCCH, and further achieving the power saving effect.

Further, if PEI (paging early indication) based on PDCCH is introduced, the subsequent PO can be ignored after the non-idle state UE is identified by the PEI scrambled by the new CRC scrambling identification, and the power saving gain is larger.

Under the condition that only RAN Paging is scheduled aiming at Paging scheduling information in DCI, a base station uses PRNTI-RAN scrambling, and inactive state UE uses P-RNTI and PRNTI-RAN descrambling Paging PDCCH.

The idle UE omits the following steps of DCI decoding and PDCCH paging message parsing, thereby achieving a power saving effect.

If paging scheduling information in DCI simultaneously schedules RAN paging and CN paging, the power saving effect cannot be achieved, and the base station uses P-RNTI scrambling.

The embodiment of the invention also provides a DCI scrambling device, which is applied to a base station for wireless communication, as shown in fig. 8, where the DCI scrambling device 100 includes: a first scrambling module 110, wherein,

the first scrambling module 110 is configured to respond to DCI scheduling a paging message of the same type, and to scramble a CRC of the DCI using a scrambling identifier associated with an RRC connection state paging message of a user equipment UE associated with the paging message.

In one embodiment, the first scrambling module 110 includes:

a first scrambling sub-module 111 configured to, in response to the UE being in an idle state, scramble the CRC of the DCI with a first identity, wherein the first identity is different from the P-RNTI.

In one embodiment, the first scrambling module 110 includes:

a second scrambling sub-module 112 configured to scramble the CRC of the DCI with the P-RNTI in response to the UE being in a state other than idle state.

In one embodiment, the apparatus 100 further comprises:

a second scrambling module 120 configured to scramble the CRC of the DCI with a P-RNTI in response to the DCI scheduling the paging messages of different types.

In one embodiment, the apparatus 100 further comprises:

a third scrambling module 130 configured to scramble the CRC of the DCI carrying the paging early indication PEI using the scrambling identity; wherein the PEI is used for indicating whether to monitor the preset PO.

In one embodiment, wherein the DCI is located inside a PO or outside the PO.

The embodiment of the invention also provides a DCI scrambling device, which is applied to a base station for wireless communication, as shown in fig. 9, where the DCI scrambling device 200 includes: a fourth scrambling module 210, wherein,

the fourth scrambling module 210 is configured to, in response to DCI scheduling a paging message of the same type, scramble the CRC of the DCI with a scrambling identifier associated with the type of the paging message.

In one embodiment, the fourth scrambling module 210 includes:

a third scrambling sub-module 211, configured to, in response to the paging message being a core network paging message CN paging, scramble the CRC of the DCI with a second identity, wherein the second identity is different from the P-RNTI.

In one embodiment, the fourth scrambling module 210 includes:

a fourth scrambling sub-module 212 configured to, in response to the paging message being an access network paging message RAN paging, scramble the CRC of the DCI with a third identifier; wherein the third identity is different from the second identity and the P-RNTI.

In one embodiment, the apparatus 200 further comprises:

a fifth scrambling module 220 is configured to use a P-RNTI to scramble the CRC of the DCI in response to the DCI scheduling the paging messages of different types.

In one embodiment, the apparatus 200 further comprises:

a sixth scrambling module 230 configured to scramble the CRC of the DCI carrying the paging early indication PEI using the scrambling identity; wherein the PEI is used for indicating whether to monitor the preset PO.

In one embodiment, the DCI is located within a PO or outside the PO.

The embodiment of the invention also provides a DCI descrambling device, which is applied to a UE in wireless communication, as shown in fig. 10, where the DCI descrambling device 300 includes: a first descrambling module 310 comprising, among other things,

the first descrambling module 310 is configured to descramble the paging message with a scrambling identifier associated with the RRC connection state of the UE according to the RRC connection state of the UE.

In one embodiment, the first descrambling module 310 includes:

a first descrambling sub-module 311 is configured to descramble the CRC of the DCI with a first identity in response to the UE being in an idle state, wherein the first identity is different from the P-RNTI.

In one embodiment, the apparatus 300 further comprises:

a second descrambling module 320 configured to descramble the CRC of the DCI using the P-RNTI.

In one embodiment, the first descrambling module 310 includes:

a second descrambling sub-module 312 is configured to descramble the CRC of the DCI with the P-RNTI in response to the UE being in a state other than the idle state.

In one embodiment, the first descrambling module 310 includes:

a third descrambling sub-module 313 configured to, in response to the UE being in an inactive state, descramble the CRC of the DCI using the first and second identifiers, respectively; wherein the second identity is different from the first identity and the P-RNTI.

In one embodiment, the first descrambling module 310 includes:

a fourth descrambling sub-module 314 configured to descramble the CRC of the DCI with the P-RNTI in response to the UE being in a connected state.

In one embodiment, the apparatus 300 further comprises:

a third descrambling module 330 configured to descramble a CRC of the DCI carrying the paging early indication PEI using an identification associated with the status of the UE.

In one embodiment, the apparatus 300 further comprises:

A determining module 340, configured to determine whether to monitor a predetermined PO according to the PEI in response to successful descrambling of the CRC of the DCI carrying the PEI.

In an exemplary embodiment, the first scrambling module 110, the second scrambling module 120, the third scrambling module 130, the fourth scrambling module 210, the fifth scrambling module 220, the sixth scrambling module 230, the first descrambling module 310, the second descrambling module 320, the third descrambling module 330, the determining module 340, and the like may be implemented by one or more central processing units (CPUs, central Processing Unit), graphic processors (GPUs, graphics Processing Unit), baseband processors (BP, baseband processor), application specific integrated circuits (ASICs, application Specific Integrated Circuit), DSPs, programmable logic devices (PLDs, programmable Logic Device), complex programmable logic devices (CPLDs, complex Programmable Logic Device), field programmable gate arrays (FPGAs, field-Programmable Gate Array), general purpose processors, controllers, microcontrollers (MCUs, micro Controller Unit), microprocessors (micro processors), or other electronic components for performing the foregoing methods.

Fig. 11 is a block diagram illustrating an apparatus 3000 for DCI scrambling or DCI descrambling according to an example embodiment. For example, apparatus 3000 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, or the like.

Referring to fig. 11, the apparatus 3000 may include one or more of the following components: a processing component 3002, a memory 3004, a power component 3006, a multimedia component 3008, an audio component 3010, an input/output (I/O) interface 3012, a sensor component 3014, and a communications component 3016.

The processing component 3002 generally controls overall operations of the device 3000, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing assembly 3002 may include one or more processors 3020 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 3002 may include one or more modules to facilitate interactions between the processing component 3002 and other components. For example, the processing component 3002 may include a multimedia module to facilitate interaction between the multimedia component 3008 and the processing component 3002.

The memory 3004 is configured to store various types of data to support operations at the apparatus 3000. Examples of such data include instructions for any application or method operating on device 3000, contact data, phonebook data, messages, pictures, videos, and the like. The memory 3004 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply assembly 3006 provides power to the various components of the device 3000. The power supply components 3006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 3000.

The multimedia component 3008 includes a screen between the device 3000 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or sliding action, but also the duration and pressure associated with the touch or sliding operation. In some embodiments, the multimedia assembly 3008 includes a front camera and/or a rear camera. When the apparatus 3000 is in an operation mode, such as a photographing mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 3010 is configured to output and/or input audio signals. For example, audio component 3010 includes a Microphone (MIC) configured to receive external audio signals when device 3000 is in an operational mode, such as a call mode, a recording mode, and a speech recognition mode. The received audio signals may be further stored in the memory 3004 or transmitted via the communication component 3016. In some embodiments, the audio component 3010 further comprises a speaker for outputting audio signals.

The I/O interface 3012 provides an interface between the processing component 3002 and a peripheral interface module, which may be a keyboard, click wheel, button, or the like. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 3014 includes one or more sensors for providing status assessment of various aspects of the device 3000. For example, sensor assembly 3014 may detect the open/closed state of device 3000, the relative positioning of the components, such as the display and keypad of device 3000, sensor assembly 3014 may also detect the change in position of device 3000 or a component of device 3000, the presence or absence of user contact with device 3000, the orientation or acceleration/deceleration of device 3000, and the change in temperature of device 3000. The sensor assembly 3014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 3014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 3014 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 3016 is configured to facilitate wired or wireless communication between the apparatus 3000 and other devices. The device 3000 may access a wireless network based on a communication standard, such as Wi-Fi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 3016 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 3016 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 3000 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 3004, including instructions executable by processor 3020 of apparatus 3000 to perform the above-described methods. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other implementations of the examples of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of embodiments of the application following, in general, the principles of the embodiments of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the embodiments of the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the embodiments being indicated by the following claims.

It is to be understood that the embodiments of the application are not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of embodiments of the application is limited only by the appended claims.

Claims

1. A downlink control information, DCI, scrambling method, applied to a base station, the method comprising:

responding to DCI to schedule the paging message of the same type, and scrambling the Cyclic Redundancy Check (CRC) of the DCI by adopting scrambling identifications associated with Radio Resource Control (RRC) connection states of User Equipment (UE) associated with the paging message, wherein different scrambling identifications are associated with different RRC connection states;

Wherein the scrambling identification associated with the Radio Resource Control (RRC) connection state of the User Equipment (UE) associated with the paging message comprises:

scrambling the CRC of the DCI by adopting a first identifier in response to the UE being in an idle state, wherein the first identifier is different from a paging radio network temporary identifier P-RNTI; or alternatively, the process may be performed,

2. The method of claim 1, wherein the method further comprises:

3. The method according to claim 1 or 2, wherein the method further comprises:

scrambling the CRC of DCI carrying the paging early indication PEI by adopting the scrambling identification; wherein the PEI is configured to indicate whether to monitor the predetermined paging occasion PO.

4. The method of claim 1 or 2, wherein the DCI is located inside a PO or outside the PO.

5. A downlink control information, DCI, scrambling method, applied to a base station, the method comprising:

scrambling a Cyclic Redundancy Check (CRC) of DCI by adopting a scrambling identifier associated with the type of the paging message in response to the paging message of the same type scheduled by the DCI; wherein, the types of the paging message include: core network paging message CN paging and/or access network paging message RAN paging;

The scrambling the CRC of the DCI using a scrambling identity associated with the type of paging message, comprising:

scrambling the CRC of the DCI by adopting a second identifier in response to the paging message serving as a core network paging message CN, wherein the second identifier is different from a paging radio network temporary identifier P-RNTI; or alternatively, the process may be performed,

6. The method of claim 5, wherein the method further comprises:

7. The method of claim 5, wherein the method further comprises:

8. The method of claim 5, wherein the DCI is located inside a PO or outside the PO.

9. A method for descrambling downlink control information DCI, wherein the method is applied to a user equipment UE, the method comprising:

Descrambling paging information by adopting scrambling identifiers associated with the RRC connection state of the UE according to the Radio Resource Control (RRC) connection state of the UE, wherein different scrambling identifiers are associated with different RRC connection states;

the descrambling, according to the state of the UE, the CRC of the DCI for scheduling the paging message using an identifier associated with the state of the UE, including:

descrambling a CRC of the DCI with a first identity in response to the UE being in an idle state, wherein the first identity is different from a paging radio network temporary identity, P-RNTI, or,

10. The method of claim 9, wherein the method further comprises: and descrambling CRC of the DCI by adopting the P-RNTI.

11. The method of claim 9, wherein the descrambling, according to the state of the UE, the CRC of the DCI for scheduling the paging message with an identification associated with the state of the UE further comprises:

12. The method of claim 11, wherein the descrambling, according to the state of the UE, the CRC of the DCI for scheduling the paging message with the identity associated with the state of the UE comprises:

13. The method according to any one of claims 9 to 12, wherein the method further comprises:

14. The method of claim 13, wherein the method further comprises:

and in response to successful descrambling of the CRC of the DCI carrying the PEI, determining whether to monitor a preset paging occasion PO according to the PEI.

15. A downlink control information, DCI, scrambling device, applied to a base station, the device comprising: a first scrambling module, wherein,

the first scrambling module is configured to respond to DCI to schedule the paging message of the same type, and scramble Cyclic Redundancy Check (CRC) of the DCI by adopting scrambling identifiers associated with Radio Resource Control (RRC) connection states of User Equipment (UE) associated with the paging message, wherein different scrambling identifiers are associated with different RRC connection states;

The first scrambling module includes:

a first scrambling sub-module configured to scramble the CRC of the DCI with a first identity in response to the UE being in an idle state, wherein the first identity is different from a paging radio network temporary identity, P-RNTI, or,

16. The apparatus of claim 15, wherein the apparatus further comprises:

17. The apparatus of claim 15, wherein the apparatus further comprises:

a third scrambling module configured to scramble a CRC of DCI carrying the paging early indication PEI using the scrambling identifier; wherein the PEI is configured to indicate whether to monitor the predetermined paging occasion PO.

18. The apparatus of claim 15, wherein the DCI is located inside a PO or outside the PO.

19. A downlink control information, DCI, scrambling device, applied to a base station, the device comprising: a fourth scrambling module, wherein,

The fourth scrambling module is configured to respond to DCI to schedule paging messages of the same type, and scramble a Cyclic Redundancy Check (CRC) of the DCI by adopting a scrambling identifier associated with the type of the paging messages; wherein, the types of the paging message include: core network paging message CN paging and/or access network paging message RAN paging;

wherein the fourth scrambling module includes:

a third scrambling sub-module configured to perform scrambling on the CRC of the DCI using a second identifier in response to the paging message being a core network paging message CN paging, where the second identifier is different from a paging radio network temporary identifier P-RNTI; or alternatively, the process may be performed,

20. The apparatus of claim 19, wherein the apparatus further comprises:

21. The apparatus of claim 19, wherein the apparatus further comprises:

a sixth scrambling module configured to scramble a CRC of DCI carrying the paging early indication PEI using the scrambling identifier; wherein the PEI is configured to indicate whether to monitor the predetermined paging occasion PO.

22. The apparatus of claim 19, wherein the DCI is located inside a PO or outside the PO.

23. A downlink control information, DCI, descrambling apparatus, applied to a user equipment, UE, the apparatus comprising: a first descrambling module, wherein,

the first descrambling module is configured to descramble paging messages by adopting scrambling identifiers associated with the RRC connection state of the UE according to the Radio Resource Control (RRC) connection state of the UE, wherein different scrambling identifiers are associated with different RRC connection states;

the first descrambling module comprises:

a first descrambling sub-module configured to descramble a CRC of the DCI using a first identity in response to the UE being in an idle state, wherein the first identity is different from a paging radio network temporary identity P-RNTI; or alternatively, the process may be performed,

24. The apparatus of claim 23, wherein the apparatus further comprises:

25. The apparatus of claim 23, wherein the first descrambling module comprises:

26. The apparatus of claim 25, wherein the first descrambling module comprises:

27. The apparatus of claim 23, wherein the apparatus further comprises:

28. The apparatus of claim 27, wherein the apparatus further comprises:

and the determining module is configured to respond to successful descrambling of the CRC of the DCI carrying the PEI, and determine whether to monitor the preset paging occasion PO according to the PEI.

29. A communication device apparatus comprising a processor, a memory and an executable program stored on the memory and executable by the processor, wherein the processor, when executing the executable program, performs the steps of the downlink control information, DCI, scrambling method according to any one of claims 1 to 4 or 5 to 8, or the DCI descrambling method according to any one of claims 9 to 14.

30. A storage medium having stored thereon an executable program, wherein the executable program when executed by a processor implements the steps of the downlink control information, DCI, scrambling method according to any one of claims 1 to 4 or 5 to 8, or the DCI descrambling method according to any one of claims 9 to 14.