CN114126048A - Paging method for user equipment and base station and user equipment - Google Patents

Paging method for user equipment and base station and user equipment Download PDF

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Publication number
CN114126048A
CN114126048A CN202010897080.0A CN202010897080A CN114126048A CN 114126048 A CN114126048 A CN 114126048A CN 202010897080 A CN202010897080 A CN 202010897080A CN 114126048 A CN114126048 A CN 114126048A
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user
base station
paging
cycle value
information
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CN114126048B (en
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朱海龙
谭郑斌
史征璞
郭涛
李重锦
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Honor Device Co Ltd
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Honor Device Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02Arrangements for increasing efficiency of notification or paging channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application belongs to the technical field of mobile communication, and particularly discloses a paging method for user equipment, which comprises the following steps: determining a user-specific Discontinuous Reception (DRX) cycle value in case it is determined that the DRX cycle needs to be adjusted; transmitting first information to a base station or a Mobility Management Entity (MME), the first information indicating the user-specific DRX cycle value and indicating that the base station uses the user-specific DRX cycle value, or indicating the user-specific DRX cycle value but not indicating that the base station uses the user-specific DRX cycle value; and receiving paging information from the base station within a paging cycle determined based on the user-specific DRX cycle value, if the first information indicates the user-specific DRX cycle value and indicates the base station to use the user-specific DRX cycle value. The method has the advantage that power consumption optimization is realized by dynamically adjusting the paging cycle, particularly adjusting the paging cycle to be longer.

Description

Paging method for user equipment and base station and user equipment
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a paging method for a user equipment and a base station and a user equipment, which are used for adjusting a paging cycle, for example.
Background
With the rapid development of communication networks, the endurance experience problem of the mobile terminal becomes more and more prominent. Especially, for emerging wearable and IoT (Internet of Things) terminals such as smart wristbands, smart watches, and smart glasses, the size of the device is limited, and the battery capacity is difficult to increase, which cannot support the long-term use of the user.
Although the current 3GPP (the 3rd Generation Partner Project) communication protocol can support the negotiation paging cycle, on one hand, it only supports the negotiation paging cycle when starting up, and cannot be flexibly adjusted after accessing the network; on the other hand, the negotiation result can only be smaller than or equal to the default paging cycle value of the cell, while in the current 3GPP protocol, the default paging cycle value generally cannot exceed 512T at most (where T is the period of the radio frame), so that the longest negotiable cycle value is limited, and the ue cannot achieve the purpose of further reducing power consumption.
Disclosure of Invention
In order to solve the above-mentioned drawbacks and further reduce the power consumption of User Equipment (UE), the present application proposes an improved paging method.
The application provides a paging method for user equipment, which comprises the following steps:
receiving a default paging cycle value from a base station;
determining a user-specific Discontinuous Reception (DRX) cycle value in case it is determined that the DRX cycle needs to be adjusted;
transmitting first information to a base station or a Mobility Management Entity (MME), the first information indicating the user-specific DRX cycle value and indicating that the base station uses the user-specific DRX cycle value, or indicating the user-specific DRX cycle value but not indicating that the base station uses the user-specific DRX cycle value; and
receiving paging information from the base station within a paging cycle determined based on the user-specific DRX cycle value, if the first information indicates the user-specific DRX cycle value and indicates the base station to use the user-specific DRX cycle value.
The above paging method further includes:
in a case that the first information includes the user-specific DRX cycle value but does not instruct the base station to use the user-specific DRX cycle value, determining the paging cycle based on a smaller value between the default paging cycle value and the user-specific DRX cycle value, and receiving the paging information from the base station within the paging cycle.
The above paging method further includes: and judging whether the DRX period needs to be adjusted or not according to at least one of the service type of the communication between the user equipment and the base station, the power consumption of the user equipment and the service time of the user equipment.
In the above paging method, the first information is included in an ATTACH REQUEST sent to the MME or a ULInformationTransfer sent to the base station.
In the above paging method, the first information is included in a CN specific DRX cycle length coefficient and DRX Value for S1 Mode in the DRX parameter in the ATTACH REQUEST or the ULInformationTransfer.
In the above paging method, the first information is included in a RRC connection configuration complete medium access control layer control element (MAC CE) transmitted to the base station.
The above paging method further includes: receiving base station Smart connected DRX (Smart CDRX) capability information from the base station, wherein the base station SmartCDRX capability information indicates that the base station has the capability to send the paging information to the user equipment within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value.
In the above paging method, the base station SmartCDRX capability information is included in SIB1 Extension.
The above paging method further includes: transmitting user equipment SmartCDRX capability information to the base station, wherein the user equipment SmartCDRX capability information indicates that the user equipment has the capability to receive the paging information from the base station within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value; and
receiving user equipment SmartCDRX capability confirmation information from the base station, wherein the user equipment SMartCDRX capability confirmation information indicates whether the base station supports the user equipment to use the SmartCDRX capability.
In the above paging method, the user equipment SmartCDRX Capability Information is included in UE Capability Information, and the user equipment SmartCDRX Capability confirmation Information is included in RRC Connection Reconfiguration.
In the above paging method, the user specific DRX cycle value is greater than the default paging cycle value, or greater than 2560 ms.
Based on the same inventive concept, the application also provides a paging method for the base station, which comprises the following steps:
transmitting a default paging cycle value to the user equipment;
receiving first paging information from a Mobility Management Entity (MME), wherein the first paging information indicates a user-specific Discontinuous Reception (DRX) cycle value and indicates that a network uses the user-specific DRX cycle value, or indicates the user-specific DRX cycle value but does not indicate that the base station uses the user-specific DRX cycle value;
transmitting second paging information to the user equipment within a paging cycle determined based on a smaller value between the user-specific DRX cycle value and the default paging cycle value, in case the first paging information includes the user-specific DRX cycle value but does not instruct the base station to use the user-specific DRX cycle value; and
transmitting the second paging information to the user equipment within the paging cycle determined based on the user specific DRX cycle value, if the first paging information includes the user specific DRX cycle value and indicates that the network uses the user specific DRX cycle value.
In the above paging method, the user specific DRX cycle value, or the user specific DRX cycle value and the indication network to use the user specific DRX cycle value, are included in a paging DRX (paging DRX) parameter in the first paging information.
The paging method includes:
receiving a ULInformationTransfer from the user equipment, the ULInformationTransfer comprising the user-specific DRX cycle value and the indication that the network uses the user-specific DRX cycle value, or the user-specific DRX cycle value but not the indication that the network uses the user-specific DRX cycle value; and
forwarding the user specific DRX cycle value, or the user specific DRX cycle value and an indication to a network to use the user specific DRX cycle value, to the MME.
In the above paging method, the user-specific DRX cycle value, or the user-specific DRX cycle value and the indication network to use the user-specific DRX cycle value, are included in the DRX parameter in the ulinformationtransfer.
Based on the same inventive concept, the application also provides a paging method for the base station, which comprises the following steps:
transmitting a default paging cycle value to the user equipment;
receiving first information from a user equipment, the first information indicating the user-specific Discontinuous Reception (DRX) cycle value;
when a Temporary Mobile Subscriber Identity (TMSI) included in a paging message issued by a Mobility Management Entity (MME) is consistent with the TMSI of the UE, sending the paging information to the UE within the paging cycle determined based on the user-specific DRX cycle value.
The above paging method further includes:
the first information is included in a MAC control element (MAC CE) of a logical channel number (LCID) specified in an RRC connection Reconfiguration Complete.
In the above paging method, the MAC CE includes information indicating that an application type is a negotiation type of an idle paging cycle, where the negotiation type of the idle paging cycle indicates that the user equipment negotiates with the base station about the type of the paging cycle.
The above paging method further includes:
transmitting base station Smart connected DRX (Smart CDRX) capability information to the user equipment, wherein the base station SmartCDRX capability information indicates that the base station has the capability to transmit the paging information to the user equipment within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value;
receiving user equipment SmartCDRX capability information from the user equipment, wherein the user equipment SmartCDRX capability information indicates that the user equipment has the capability to receive the paging information from the base station within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value; and
and sending SmartCDRX capability confirmation information of the user equipment to the user equipment, wherein the SmartCDRX capability confirmation information of the user equipment indicates whether the base station accepts the SmartCDRX capability used by the user equipment.
In the above paging method, the base station SmartCDRX Capability Information is included in SIB1 Extension, the user equipment SmartCDRX Capability is included in UE Capability Information, and the user equipment SmartCDRX Capability confirmation Information is included in RRC connection Reconfiguration.
In the above paging method, the user specific DRX cycle value may be greater than the default paging cycle value, or greater than 2560 ms.
The present application further proposes an electronic device comprising:
a memory for storing instructions for execution by the one or more processors;
a processor, which is one of the processors of the electronic device, configured to perform any one of the above-mentioned paging methods for a user equipment.
Compared with the prior art, the power consumption optimization is realized by dynamically adjusting the paging cycle. The existing paging cycle decision is in the access network, even if the terminal can make a negotiation request and requires to adopt a DRX paging cycle different from the default paging cycle, the optional range of the DRX paging cycle is limited to be smaller than the default paging cycle, and the specific working situation of each independent terminal cannot be met. For example, a longer paging cycle is required. In the method, the UE provides the user-specific DRX period and a request for indicating the network side equipment to use the user-specific DRX period to the network side equipment (such as a base station and a mobile management entity), so that the user-specific DRX period can be prevented from being compared with a default paging period provided by the network side equipment and is used as the paging period based on a smaller value, and the paging period of the user equipment can be adjusted to be a longer or shorter paging period (namely, the user-specific DRX period is different from the default paging period of a cell), so that paging can be received according to a period more suitable for the current power consumption condition of the user equipment.
Further, the UE can carry DRX parameters during initial network access, IDLE and RRC _ CONNECTED, can adjust a user specific DRX period at any time, and is high in flexibility and high in adaptability.
Drawings
Fig. 1 is a schematic diagram of a wireless communication system, according to some embodiments of the present application;
fig. 2 is a signal flow diagram of communication among a user equipment, a base station, and an MME in the wireless communication system of fig. 1 to determine a paging cycle and perform paging according to the paging cycle according to the first embodiment of the present application;
fig. 3 is a flow chart of a method of the user equipment of fig. 2 according to the first embodiment of the present application;
fig. 4 is a flow chart of a method of the base station of fig. 2 according to the first embodiment of the present application;
fig. 5 is a flow chart of a method of the MME of fig. 2 according to the first embodiment of the present application;
FIG. 6 is a signal flow diagram of selecting logical channels and negotiating a paging cycle according to a second embodiment of the present application;
fig. 7 is a flow chart of a method of a user equipment according to a second embodiment of the present application;
fig. 8 is a flow chart of a method of a base station according to a second embodiment of the present application;
fig. 9 is a schematic diagram of selecting logical channels according to a second embodiment of the present application;
fig. 10 illustrates a system diagram of a user device provided in accordance with some embodiments of the present application.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. While the description of the present application will be described in conjunction with the preferred embodiments, it is not intended to limit the features of the present invention to that embodiment. Rather, the invention has been described in connection with embodiments for the purpose of covering alternatives and modifications as may be extended based on the claims of the present application. In the following description, numerous specific details are included to provide a thorough understanding of the present application. The present application may be practiced without these particulars. Moreover, some of the specific details have been omitted from the description in order to avoid obscuring or obscuring the focus of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Further, various operations will be described as multiple discrete operations, in a manner that is most helpful in understanding the illustrative embodiments; however, the order of description should not be construed as to imply that these operations are necessarily order dependent. In particular, these operations need not be performed in the order of presentation. It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
It will be understood that, although the terms "first", "second", etc. may be used herein to describe various features, these features should not be limited by these terms. These terms are used merely for distinguishing and are not intended to indicate or imply relative importance. For example, a first feature may be termed a second feature, and, similarly, a second feature may be termed a first feature, without departing from the scope of example embodiments.
The terms "comprising," "having," and "including" are synonymous, unless the context dictates otherwise. The phrase "A/B" means "A or B". The phrase "A and/or B" means "(A), (B) or (A and B)".
As used herein, the terms "module," "unit," "device" may refer to or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and/or memory (shared, dedicated, or group) that executes one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that provide the described functionality, or may be part of an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and/or memory (shared, dedicated, or group) that executes one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that provide the described functionality.
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
It should be noted that, in the present application, the numbering of the method and the flow is for convenience of reference, but not for limitation of the sequence, and if there is a sequence between the steps, the text is used as the standard.
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a wireless communication system 100 provided in accordance with some embodiments of the present application. As shown in fig. 1, system 100 includes User Equipment (UE) 101, a base station 102, and an Evolved Packet Core (EPC) (not shown), and/or other devices. In the present application, the main element in the EPC is a Mobile Management Entity (MME) 103.
Examples of user devices 101 include, but are not limited to, portable or mobile devices, cell phones, personal digital assistants, cellular phones, handheld PCs, wearable devices (e.g., smart watches, smart bracelets, and the like), portable media players, handheld devices, navigation devices, servers, network devices, graphics devices, video game devices, set-top boxes, laptop devices, virtual reality and/or augmented reality devices, internet of things devices, industrial control devices, smart cars, in-vehicle infotainment devices, streaming media client devices, electronic books, reading devices, POS machines, and other devices.
The base station 102 is arranged to access the user equipment 101 to the radio network according to a wireless communication protocol, such as 2G, 3G, 4G, 5G of 3GPP or other protocols in the future, to support communication between the user equipment 101 and the core network in the system 100.
The packet core network is used to provide user connectivity, management of users, and bearer completion for services, and provides an interface to external networks as a bearer network. The establishment of the user connection includes functions such as Mobility Management (MM), Call Management (CM), switching/routing, voice announcement (connection to the intelligent network peripheral devices is completed in conjunction with intelligent network services). The user management includes the description of the user, the Qos (the description of the user service Qos is added), the user communication record (Accounting), the VHE (the session with the intelligent network platform provides the virtual home environment), and the security (the corresponding security measures provided by the authentication center include security management for the mobile service and security processing for the external network access). The bearer connection (Access to) includes PSTN to the outside, external circuit data networks and packet data networks, Internet and Intranets, and SMS server to move itself, etc. Wherein, the mobility management function is realized by the MME103 in the present application.
The MME103 is a key control node of the 3GPP protocol for the UE101 to access the network, and is responsible for positioning, paging and relaying of the UE101 in idle mode, and in short, the MME103 is responsible for the signaling processing part. Also, the MME103 authenticates the UE101 by interacting with an HSS (Home Subscriber Server), and assigns a temporary ID to the UE 101.
The 3GPP 36.304 protocol indicates that the UE101 can use Discontinuous Reception (DRX) functionality in idle mode to reduce power consumption.
The DRX period is given based on the period T of a radio frame, and the coefficient given in the DRX parameter multiplied by T is the DRX period value. Under the existing framework, T of one radio frame is typically 10 ms. A Paging frame pf (Paging frame) is a radio frame and may contain one or more Paging Occasions (PO). When using DRX, the UE101 only needs to monitor one PO per DRX cycle, and thus the power consumption of the UE101 can be reduced.
The current protocol, except NB-IoT, is configured with a maximum of 512T as the default paging cycle value, and the most common configuration is 256T, according to other current network protocols. Alternatively, the DRX cycle value may also be negotiated by the UE101 with the MME103 or the base station 102. Specifically, the UE101 reports the user-specific DRX cycle value that the UE101 wants to use to the base station 102 or the MME103, and after comparing the user-specific DRX cycle value with a default paging cycle value given by the base station 102 through System Information Broadcast (SIB), determines a paging cycle value between the UE101 and the base station 102 according to the smaller value of the two values.
According to some embodiments of the present application, in the system 100 shown in fig. 1, in addition to the user-specified DRX cycle, the content reported by the UE101 to the base station 102 or the MME103 may further include information instructing the base station to use the user-specified DRX cycle value, that is, the communication system is required to directly use the user-specified DRX cycle and determine a paging cycle for paging between the UE101 and the base station 102 based on the user-specified DRX cycle value without comparison. Meanwhile, in the system shown in fig. 1, an optional range of the user-specified DRX cycle value is also added, so that in the case that the specified base station uses the user-specific DRX cycle value, the paging cycle length determined according to the user-specific DRX cycle value may be greater than the default paging cycle of the system, or even greater than the maximum cycle value of 2560ms in the prior art. The UE101 can flexibly select the DRX cycle value according to the traffic type of communication with the base station 102, the power consumption of the UE101, and the current location of the UE101, so as to reduce the power consumption, and solve the disadvantage that only the default paging cycle of the system or the user-specific DRX cycle smaller than the default paging cycle can be used in the prior art.
For example, in the case that the UE101 is a child watch used by a student, if it is detected that the UE101 is currently in a class period, the UE101 reports first information to the base station 102 or the MME103, wherein the first information indicates a user-specific DRX cycle value desired by the UE101 and indicates that the base station 102 (or a network device) uses the user-specific DRX cycle value. In case the base station 102 receives the first information (either from the UE101 or from the paging message of the MME 103), since the first information indicates that the base station uses the user-specific DRX cycle value, the base station 102 determines the paging cycle for paging (paging) the UE101 based on the user-specific DRX cycle value without going through the procedure of comparing the default paging cycle and the user-specific DRX cycle in the prior art.
According to the present application, the first information may be included in an ATTACH REQUEST or a ul information transfer sent by the UE101 to the MME103, and/or other messages transmitted between the UE101 and the network device (the base station 101 or the MME103, etc.).
The system 100 shown in fig. 1 is advantageous in that the base station 102 can be designated to page the UE101 based on the paging cycle determined by the user-specific DRX cycle, without comparing with the default paging cycle, so that the paging cycle can be adjusted to a longer or shorter paging cycle (i.e., the user-specific DRX cycle is different from the default paging cycle of the cell), so that the paging can be responded according to a cycle more suitable for the current power consumption situation of the user equipment, and a better technical solution is provided for power consumption management of modern intelligent terminals.
Fig. 2 is a signal flow diagram of communication among a user equipment, a base station, and an MME in the wireless communication system 100 in fig. 1 to determine a paging cycle and perform paging according to the paging cycle according to the first embodiment of the present application.
As shown in fig. 2, according to some embodiments of the present application, at step S21, ATTACH REQUEST information is transmitted by the UE101 to the MME103 through the Non-Access Stratum (NAS) layer. ATTACH REQUEST information is used to initiate an ATTACH REQUEST. The first information may be included in an ATTACH REQUEST message sent to the MME103 when the UE101 is camped on or in IDLE mode, wherein the first information indicates the user specific DRX cycle value and indicates to the base station 102 to use the user specific DRX cycle value, or indicates the user specific DRX cycle value but does not indicate to the base station 102 to use the user specific DRX cycle value. That is, the first information includes two cases, one is to indicate only the user-specific DRX cycle, in which case the base station 102 and/or MME103 needs to compare the user-specific DRX cycle with the default paging cycle, and determine the paging cycle between the base station 102 and the UE102 based on the smaller value thereof; the other is that not only the user-specific DRX cycle is indicated, but also the base station 102 is indicated to use the user-specific DRX cycle, in which case the base station 102 determines the paging cycle between the base station 102 and the UE102 directly based on the user-specific DRX cycle without comparison. The related Paging Occasions (PO) can be still described in paragraphs 7.1 to 7.3 of 3GPP 36.304.
In some embodiments of the present application, the first information may be carried by a DRX parameter in an ATTACH REQUEST. The DRX parameter is included in the ATTACH REQUEST. First, the extended definition of the DRX parameter will be described below.
As shown in Table 1, Table 8.2.4.1ATTACH REQUEST message content in 3GPP 24.301 defines that the ATTACH REQUEST message may selectively carry DRX parameters, that is, the DRX parameters are not necessary. According to the specification of 3GPP 24.301, the IEI identification number of the DRX parameter is 5C, and 3 bytes are included in the DRX parameter.
TABLE 1
Figure BDA0002658738960000091
Further, as shown in table 2, the specific structure of the DRX parameter is defined in detail in the 3GPP 24.008 protocol.
TABLE 2
Figure BDA0002658738960000092
In table 2, byte 1 is used to indicate the IEI id number of the DRX parameter, and as can be seen from table 1, the IEI id number of the DRX parameter is 5c (h). Byte 2 is used to represent the SPLIT PG cyclic code. Byte 3 is divided into 3 segments, where bit1-3 is used to indicate no DRX timer, bit4 indicates whether the terminal supports SPLIT on CCCH (Common Control Channel), and what is kept in bit8-bit5 (i.e., in order of high order to low order) is a DRX cycle coefficient used to indicate a user specific DRX cycle.
Byte 3 bits 8-bit5 have a total of 4 bits that can be used to represent 16 DRX cycle coefficients, but the current 3GPP standard only defines 5 DRX cycle coefficients, and the 5 DRX cycle coefficients can only be used to indicate the user specific DRX cycle as described above.
In some embodiments of the present application, the definition of bit8-bit5 for byte 3 is extended. After the definition of bit8-bit5 of byte 3 is extended, the transmission process of ATTACH REQUEST is not affected, the ATTACH REQUEST can be transmitted according to the existing logic, and the MME103 can receive as usual.
Specifically, after the definition is extended, the definition of bit8-bit5 of byte 3 of the DRX parameter is shown in table 3.
TABLE 3
Figure BDA0002658738960000101
As the notation in Table 3 shows, 3GPP 24.008 only defines 5 states of bit8-bit5 for byte 3, namely state 1 through state 5. However, 4 bits can represent 16 states in total, the present application makes full use of the remaining and unused states to expand the DRX cycle coefficient, so that the user-specific DRX cycle that the system can negotiate increases to a maximum of 1024T, and the UE101 can report and indicate to the base station 102 that the user-specific DRX cycles used are 128T, 256T, 512T, and 1024T.
Specifically, in Table 3, State 1 indicates that the DRX parameter is not enabled, i.e., the UE101 does not require the use of a discontinuous reception cycle; state 2 is a coefficient of the standard protocol, indicating that the UE101 issues a negotiation request requesting a user-specific DRX cycle of 32T. The negotiation request means that the UE101 requests to change the paging cycle between the UE101 and the base station 102, and meanwhile, the negotiation request further includes an indication of a new paging cycle value (user-specific DRX cycle value) desired by the UE101 and information (i.e. the content of bit8-bit 5) indicating whether the base station 102 uses the user-specific DRX cycle value, and in state 2 of table 3, the UE101 requests to use 32(T) as the paging cycle; state 3 is a coefficient of the standard protocol, indicating that the UE101 issues a negotiation request, requesting to use 64(T) as a paging cycle; state 4 is a coefficient of the standard protocol, indicating that the UE101 issues a negotiation request, requesting to use 128(T) as the paging cycle; state 5 is a coefficient of the standard protocol, indicating that the UE101 issues a negotiation request, requesting to use 256(T) as the paging cycle. Since the system default maximum paging cycle is 256T, the UE101 can only negotiate user-specific DRX cycles less than the default paging cycle according to the 3GPP standard protocols, which therefore specifies a user-specific DRX cycle of only up to 256T. But this obviously does not satisfy the requirement of extending the paging cycle to reduce power consumption. The present application adds the definitions of state 5 and state 6, so that the UE negotiable user specific DRX cycle is extended to 1024T. Accordingly, the base station 102 should also have modified the predefinition of the optional default paging cycle. In the existing 3GPP 36.331 protocol, section 6.3.2, regarding the common radio resource configuration (RadioResourceConfigCommon) in the radio resource control, specifies that the default paging cycles selectable by the base station 102 are 32, 64, 128 and 256 (specific statements: defaultpaging cycle estimated { rf32, rf64, rf128, rf256}), which correspond to states 1-5 in table 3. Since the present application adds the definitions of state 5 and state 6, the above definition of the default paging cycle that can be selected by the base station 102 also needs to be correspondingly extended as follows: 32. 64, 128, 256, 512, and 1024, specific statements may be: defaultPagingCycle estimated { rf32, rf64, rf128, rf256, rf512, rf1024 }.
Further, the present application extends to states 8-11, which are used to indicate the user-specific DRX cycle value and to indicate to the base station 102 to use the user-specific DRX cycle value, i.e., without comparing to a default paging value from the base station 102 to take a smaller value, which is also a difference between indicating to the base station 102 to use the user-specific DRX cycle value and, for example, the negotiation request in states 2-5 described above. Specifically, the base station 102 compares the user specific DRX cycle value with the default paging cycle value to take the smaller value as the paging cycle with the UE101 in case of receiving the user specific DRX cycle value as indicated by states 2-5, and the base station 102 directly takes the paging cycle determined based on the user specific DRX cycle value as the paging cycle with the UE101 without comparing with the default paging cycle in case of receiving the indication that the base station 102 uses the user specific DRX cycle value as indicated by states 8-11 as described above. For example, if in the DRX parameter, byte 3 bits 8-bit5 is 1111, it indicates that the UE101 instructs the base station 102 to set the paging cycle between the UE101 and the base station 102 to 1024T directly, without comparison to the default paging cycle. For another example, if bit8-5 of byte 3 in the DRX parameter is 1011, it indicates that the UE101 indicates to make a negotiation request, and requests to use 1024T as the paging cycle of the UE101, and after receiving the DRX parameter, the base station 102 compares the 1024T with the default paging cycle, and takes the smaller value thereof as the paging cycle between the UE101 and the base station 102.
In this embodiment, states 6 to 11 are additionally defined, and the DRX parameters obtained by MME103 from ATTACH REQUEST may be states 1 to 5, or states 6 to 11. In case that the DRX parameter is in state 1 to state 7, the first information indicates the user specific DRX cycle value but does not indicate the base station 102 to use the user specific DRX cycle value, i.e. the final paging cycle needs to be obtained after comparing the user specific DRX cycle value with a default paging cycle value. In case the DRX parameter is state 8 to state 11, the first information indicates the user specific DRX cycle value and indicates that the base station 102 uses the user specific DRX cycle value, i.e., the final paging cycle has been confirmed, i.e., the paging cycle indicated by state 8 or state 9 or state 10 or state 11.
Next, step S22 is a response of MME103 to step S21. MME103 replies ATTACH ACCEPT information to UE101 carrying a response message to the ATTACH REQUEST.
Unlike step S21, if it is determined that the DRX cycle needs to be adjusted while the UE101 is in the RRC _ CONNECTED mode, step S23 may be performed. Step S23 is to transmit a ULInformationTransfer message, which is used to transfer the uplink direct transfer message of the NAS layer, to the base station 102 by the UE 101. Specifically, in the RRC _ CONNECTED state, the UE101 sends a ULInformationTransfer, which may include the DRX parameter, to the base station 102. Similar to the description in step S21, the DRX parameter carries the first information. The DRX parameters are defined as shown in tables 1-3. The first information indicates the user-specific DRX cycle value and indicates that the base station 102 uses the user-specific DRX cycle value, or indicates the user-specific DRX cycle value but does not indicate that the base station 102 uses the user-specific DRX cycle value.
Then, step S24 is executed. Step S24 is the base station 102 sending a UPLINK NAS TRANSPORT message to the MME103, which is mainly the forwarding of the ULInformationTransfer message. After receiving the ULInformationTransfer, the base station 102 extracts the first information from the ULInformationTransfer, packages the first information into an UPLINK NAS TRANSPORT, and uploads the first information to the MME 103.
In step 23 and step 24, specifically, the parameter similar to the DRX parameter shown in table 3 may be included in the ULInformationTransfer message and the UPLINK NAS TRANSPORT message to carry the first information.
Including the DRX parameter in the ULInformationTransfer, such as shown in table 3, allows the UE101 to flexibly request negotiation of the paging cycle without restarting the UE 101. Compared with the prior art that the user specific DRX period can be negotiated only once when the RRC connection is established, the method has more initiative, and the UE101 can flexibly change the DRX period according to specific conditions such as the use environment and the power consumption of the UE.
For example, when the child watch (UE101) detects that it is a time of class, the paging cycle may be adjusted to be smaller to improve the receiving effect of the UE101, the first information may be actively sent to the MME103, where the first information indicates that the (smaller) UE-specific DRX cycle value does not indicate to the base station 102 to use the UE-specific DRX cycle value, and the base station 102 determines that the UE-specific DRX cycle is smaller after comparing the UE-specific DRX cycle with the default paging cycle, so that the UE-specific DRX cycle is used as the paging cycle between the UE101 and the base station 102 for paging, thereby achieving the purpose of adjusting the paging cycle to be a smaller cycle. For another example, when the child watch (UE101) detects that the current time period is late at night, it may send a first message to the MME103, where the first message indicates the (larger) user-specific DRX cycle value and indicates the base station 102 to use the user-specific DRX cycle value, and the base station 102 directly uses the user-specific DRX cycle as a paging cycle between the UE101 and the base station 102 for paging, so as to achieve the purpose of adjusting the paging cycle to a larger cycle, which is beneficial to saving power consumption of the child watch. Or, the child watch detects that the battery is about to be exhausted, and can also actively send the first information to prolong the paging cycle.
With continued reference to fig. 2, whether the adjustment of the paging cycle is requested through steps S21 and S22 or through steps S23 and S24, step S25 needs to be performed. Step S25 is to send down a PAGING message by MME 103. The PAGING message is a message sent repeatedly and periodically, and each PAGING message includes a plurality of factors. PAGING in step 25 is responsive to MME103 issuing a PAGING to base station 102 for conveying the first information. The base station 102 receives this PAGING and extracts the first information therefrom.
The base station 102 then performs step S26. The base station 102 sends PAGING to the UE101 according to the indication of the first information, and pages other UE that does not require the UE specific DRX cycle in the communication system according to a default PAGING cycle, or sends PAGING to other UE that proposes the UE specific DRX cycle in the communication system according to a negotiation result.
Specifically, the base station 102 takes the user specific DRX cycle value as a paging cycle between the UE101 and the base station 102 to page the UE101 when the first information indicates the user specific DRX cycle value and indicates the base station 102 to use the user specific DRX cycle value; in case that the first information indicates the user specific DRX cycle value but does not indicate the base station 102 to use the user specific DRX cycle value, the base station 102 compares the user specific DRX cycle with a default paging cycle, and takes the smaller value as a new paging cycle to page the UE101 according to the new paging cycle.
In the communication system shown in fig. 2, the definitions of bits 8-5 of byte 3 in the DRX parameter are first extended, so that the paging cycle between the UE101 and the base station 102 can be larger than the default paging cycle, the disadvantage that the specific DRX cycle of the user in the prior art can only be smaller than the default paging cycle is overcome, and a scheme is provided for further reducing the power consumption of the user equipment.
Secondly, in the communication system shown in fig. 2, a paging cycle can be negotiated in the RRC CONNECTED mode, so that the ue can flexibly change the paging cycle according to the specific situations such as the service environment where the ue is located or the power consumption requirement, and the defect that the ue can negotiate only once through ATTACH REQUEST in the RRC Connection Setup Complete in the prior art is overcome.
The above embodiments are merely exemplary descriptions of the signal flow diagrams for communication among the UE101, the base station 102, and the MME103 to determine the paging cycle and perform paging according to the paging cycle, and it should be understood by those skilled in the art that the signal flow diagrams may be implemented by other technologies. For example, bit8-bit5 in table 3 may take other bit values and the content of the first information corresponding to the bit values (e.g., the column "coefficient" in table 3 indicates the user-specific DRX cycle value and the column "usage" in table 3 indicates whether the base station 102 compares the user-specific DRX cycle value with the default paging cycle value to take a smaller value (i.e., the process of negotiating the paging cycle) or uses the user-specific DRX cycle value without negotiation) may also take other different combinations. For another example, the first information may be included in ATTACH REQUEST, UL information transfer, or other information between the other UE101 and the network side device (base station 102, MME102, etc.).
Fig. 3 is a flow chart of a method of the user equipment of fig. 2 according to the first embodiment of the present application. In some embodiments according to fig. 3, the UE101, as a communication terminal, needs to synchronize timing with the base station 102 after being powered on, establish uplink and downlink physical channels, and acquire some basic information of the base station 102 through a broadcast message of the base station 102, where the basic information includes a default paging cycle (default paging cycle) of the base station 102.
In some embodiments according to FIG. 3, the UE101 may negotiate a DRX cycle with the base station 102 or the MME103 during establishment of an RRC connection with the base station 102, as shown in steps S31-S32, to enable paging between the UE101 and the base station 102 at a user-specific DRX cycle. The DRX cycle may also be negotiated with the base station 102 in the RRC CONNECTED mode, as shown in step S33, so that the paging between the UE101 and the base station 102 is performed according to the user-specific DRX cycle. Alternatively, the UE101 may determine one user-specific DRX cycle as the paging cycle with the base station 102 through steps S31 to S32, and then wish to change the paging cycle in the RRC CONNECTED mode, and may re-determine one user-specific DRX cycle as the paging cycle through step S33. That is, steps S31 to S32 and S33 may be executed separately or in an overlapping manner.
Of course, the UE101 may not need to negotiate the DRX cycle, in which case the paging between the UE101 and the base station 102 is performed according to the default paging cycle (default paging cycle) of the communication system. The default paging cycle is included in a broadcast message SIB2 transmitted by the base station 102.
Specifically, the process of implementing the paging cycle adjustment by the UE101 is as follows:
step S30, synchronizing the timing with the base station 102, establishing an uplink and downlink physical channel, and acquiring some basic information of the base station 102 through the broadcast message of the base station 102, wherein the basic information includes a default paging cycle (default paging cycle) of the base station 102.
Step S31 (which may or may not be performed), the UE101 sends a first message to the MME103, the first message indicating the user-specific DRX cycle value and indicating that the base station 102 uses the user-specific DRX cycle value or the first message indicating the user-specific DRX cycle value but not indicating that the base station 102 uses the user-specific DRX cycle value. Preferably, the first information is included in a DRX parameter of an ATTACH REQUEST transmitted by the UE101 to the MME 103. The usage of the DRX parameters can be seen in tables 1 to 3 and their description.
Step S32 (if S31 is executed, if S31 is not executed), the UE101 receives ATTACH ACCEPT from the MME 103. MME103 obtains the first information from ATTACH REQUEST.
Step S33 (which may or may not be performed), the UE101 sends a first message to the base station 102, the first message indicating the user-specific DRX cycle value and indicating that the base station 102 uses the user-specific DRX cycle value or the first message indicating the user-specific DRX cycle value but not indicating that the base station 102 uses the user-specific DRX cycle value. Preferably, the first information is included in a DRX parameter of the ULInformationTransfer transmitted by the UE101 to the base station 102. The usage of the DRX parameters can be seen in tables 1 to 3 and their description.
Through the above steps S31-S33, the UE101 has issued the first information for requesting adjustment of the DRX cycle, and thereafter, the base station 102 issues a PAGING message in a manner designated in the first information. The UE101 first performs step S34 to confirm whether it is currently receiving paging according to the user-specific DRX cycle or whether it is necessary to further compare the user-specific DRX cycle with the default paging cycle.
The UE101, in case of determining that the user-specific DRX cycle has been received and instructing the base station 102 to use the user-specific DRX cycle value, performs step S37, and receives a page of the base station 102 with the user-specific DRX cycle value as a paging cycle between the UE101 and the base station 102. When the UE101 determines that the received value indicates the user-specific DRX cycle value but does not indicate the base station 102 to use the user-specific DRX cycle value, step S35 is executed, the UE101 compares the user-specific DRX cycle with the previously received default paging cycle, and takes the smaller value as a new paging cycle to receive paging of the base station 102 according to the new paging cycle. That is, when step S35 is executed, if the user specific DRX cycle is smaller than the default paging cycle, S37 is executed; if the user-specific DRX cycle is greater than the default paging cycle, step S36 is executed to receive a page from the base station 102 with the default paging cycle value as the paging cycle value between the UE101 and the base station 102.
By using the paging method shown in fig. 3, the UE101 may determine whether the DRX cycle needs to be adjusted according to at least one of a communication traffic type between the UE101 and the base station 102, or power consumption of the UE101, and a usage time (a current time period) of the UE101, so as to achieve a purpose of reducing the power consumption of the UE 101.
The above embodiments are merely exemplary descriptions of the signal flow diagram of the present application for the UE101 to communicate with the base station to determine the paging cycle and perform paging according to the paging cycle, and it should be understood by those skilled in the art that the signal flow diagram can be implemented by other technologies. For example, the above-described first information may be included in a message other than ATTACH REQUEST, UL information transfer.
Fig. 4 is a flow chart of a method of the base station of fig. 2, some of which correspond to the steps of fig. 3, according to a first embodiment of the present application. First, the base station 102 transmits a default paging cycle to the UE101 through a broadcast message SIB2 in establishing an RRC connection with the UE 101. For a user terminal that does not require adjustment of the DRX cycle, the paging cycle between the user terminal and the base station 102 is the default paging cycle. In case that the UE101 requires to adjust the DRX cycle, paging is performed between the UE101 and the base station 102 according to the negotiated result. Of course, the negotiation may be unsuccessful, in which case paging is also performed between the UE101 and the base station 102 at said default paging cycle.
Specifically, the process of the base station 102 for implementing the paging cycle adjustment is as follows:
step S40, synchronizes timing with the UE101, establishes an uplink and downlink physical channel, and sends a broadcast message to the UE101, where the broadcast message includes a default paging cycle (default paging cycle) of the base station 102.
Step S41, the ATTACH REQUEST uploaded by the UE101 is forwarded to the MME 103. Those skilled in the art will appreciate that step S41 is transparent forwarding and that base station 102 does not perform any action on ATTACH REQUEST. Step S41 corresponds to step S31, and if the first information is not included in the ATTACH REQUEST of step S31, the ATTACH REQUEST of step S41 does not include the first information.
Step S42, forwarding ATTACH ACCEPT issued by MME103 to UE 101. Likewise, as will be appreciated by those skilled in the art, step S42 is transparent forwarding and the base station 102 does not perform any action on ATTACH REQUEST.
In step S43, the ULInformationTransfer from the UE101 is received. Step S43 corresponds to step S33, and in the case where the ULInformationTransfer issued in step S33 does not include the first information, the ULInformationTransfer received by the base station 102 does not include the first information either.
In step S44, when the first information is transferred in step S43, the base station 102 extracts the first information from the DRX parameter of the ULInformationTransfer, integrates the first information into the UPLINK NAS trap, and sends the UPLINK NAS trap to the MME 103. In the case that the first information is not transferred in step S43, the UPLINK NAS TRANPORT transmitted by the base station 102 to the MME103 does not include the first information either.
Corresponding to steps S31 to S32 and S33, steps S41 to S42 and steps S43 to S44 may be executed separately or sequentially; the steps S43-S44 may be repeated several times according to various factors such as the usage environment of the UE101 and the user' S needs.
In step S45, after step S41-step S42 and/or step S43-step S44, the regular base station 102 receives a PAGING message from the MME103, wherein the PAGING message includes the first information. The first information indicates the user-specific DRX cycle value and either indicates that the base station 102 uses the user-specific DRX cycle value or the first information indicates the user-specific DRX cycle value but does not indicate that the base station 102 uses the user-specific DRX cycle value. If the first PAGING message is not included in the first PAGING message, the base station 102 adopts a default PAGING cycle as a PAGING cycle for initiating PAGING to the UE 101. If the base station 102 does not receive the PAGING message containing the first information, the base station 102 still pages the UE101 according to the original PAGING cycle.
The received PAGING indicates to use the user specific DRX cycle or indicates the user specific DRX cycle value and indicates to the base station 102 to use the user specific DRX cycle value. If the PAGING does not contain the first information, the base stations 102 still page according to the original PAGING cycle.
According to the definition in the 3GPP 36.413 protocol, the PAGING message transfers the first information through the PAGING DRX parameter, and the structure of the PAGING DRX parameter is shown in table 4, from which it can be seen that the PAGING DRX parameter is an optional item, and when the UE101 carries the user-specific DRX cycle (even when the DRX parameters described in tables 1 to 3 are used), the PAGING DRX parameter is included in the PAGING sent by the MME103 to the base station 102, and is used for notifying the base station 102 of the PAGING cycle finally determined.
TABLE 4
Figure BDA0002658738960000171
Then, step S46 is executed to determine the subsequent steps according to the content of the first information. In case it is determined that the user specific DRX cycle has been received and the base station 102 is instructed to use the user specific DRX cycle value, the base station 102 proceeds to step S48, and transmits a page to the UE101 with the user specific DRX cycle value as a paging cycle between the UE101 and the base station 102. When the base station 102 determines that the received value indicates the user-specific DRX cycle value but does not indicate the base station 102 to use the user-specific DRX cycle value, step S47 is executed, the base station 102 compares the user-specific DRX cycle with the previously received default paging cycle, and takes the smaller value as a new paging cycle, and sends a page to the UE101 according to the new paging cycle. That is, when step S47 is executed, if the user specific DRX cycle is smaller than the default paging cycle, S48 is executed; if the user-specific DRX cycle is greater than the default paging cycle, step S49 is executed to send a page to the UE101 with the default paging cycle value as the paging cycle value between the UE101 and the base station 102.
In the embodiment shown in fig. 4, the base station 102 transparently transmits the first information sent by the UE101, adjusts the PAGING cycle with the UE101 according to the PAGING message sent by the MME103, does not change the original message transmission process among the UE, the base station, and the core network, and does not need to modify in the network layer. The improvement of the base station is that the received PAGING message is interpreted, and the PAGING cycle between the base station and the user equipment is determined according to whether the PAGING message carries the first information and what kind of requirement is transferred by the carried first information. The user equipment is facilitated to flexibly adjust power consumption.
The above embodiments are merely examples of how the base station 102 participates in adjusting the paging cycle between the UE101 and the base station 102, and it should be understood by those skilled in the art that the flowchart shown in fig. 4 may be implemented by other technical solutions. For example, the first information is not passed to the MME, but is only coordinated between the UE and the base station. Alternatively, the first information is communicated to both the base station and the MME without the MME notifying the base station of the first information.
Fig. 5 is a flowchart illustrating a method of MME103 in fig. 2 according to the first embodiment of the present application. Wherein, steps S51 to S52 correspond to steps S31 to S32, and if the first information is not included in steps S31 to S32, steps S51 to S52 do not need to have a response; step S53 corresponds to step S33, and if step S33 does not include the first information, step S53 does not require a response.
Specifically, the process of implementing the paging cycle adjustment by the MME103 is as follows:
at step S51, the ATTACH REQUEST uploaded by the UE101 (forwarded transparently by the base station 102) is received, which includes the first information.
Step S52, issue ATTACH ACCEPT (forwarded transparently by the base station 102) to the UE 101.
In step S53, a UPLINK NAS TRANPORT including the first information is received from the base station 102. In response to the first message sent by the UE101 in the IDLE mode or the RRC _ CONNECTED mode, the steps S51 and S52 and the step S53 may be performed independently or sequentially; step S53 may also be performed over multiple iterations.
Through steps S51-S52 and/or S53, the MME103 has acquired first information that the UE101 needs to adjust the DRX cycle.
In step S54, after step S51-step S52 and/or step S53, the MME103 transmits the first information to the base station 102 through the PAGING DRX parameter (see table 4) in the first PAGING issued. Notifying the base station 102 to page with the UE101 as indicated by the first information.
In the embodiment shown in fig. 5, the MME receives, through the base station, the first information sent by the user equipment, and because the first information is embedded in the original parameter, the message transmission process among the original user equipment, the base station, and the core network is not changed, and modification is not required to be made in the network layer. The MME is improved in that the received ATTACH REQUEST message or UPLINK NAS TRANPORT message is analyzed and if the received ATTACH REQUEST message or UPLINK NAS TRANPORT message contains the first information, the first information is notified to the base station. Meanwhile, a record can be left in the MME, and the paging cycle is adjusted from the MME end for the user equipment requiring the user specific DRX cycle.
The above embodiments are merely exemplary descriptions of how the MME103 participates in adjusting the paging cycle between the UE101 and the base station 102, and it should be understood by those of ordinary skill in the art that the flowchart shown in fig. 5 may be implemented by other technical solutions. For example, the first information is not passed to the MME, but is only coordinated between the UE and the base station. Or after the first information is transferred to the MME, the MME manages the specific paging cycle of the user equipment without notifying the base station of the first information.
It should be added that, if the UE101 does not give the first information through the DRX parameter, the MME103 does not include the Paging DRX parameter in the Paging message sent to the base station 102, i.e. does not instruct the base station 102 to use the user-specific DRX cycle, and then the base station 102 adopts the default Paging cycle as the Paging cycle for the next time the base station 102 sends Paging to the UE 101.
In addition, when the UE101 needs to resume using the default paging cycle currently used by the base station 102, the default paging cycle may be carried by an UL NAS (uplink NAS) message.
Fig. 6 is a signal flow diagram of selecting logical channels and negotiating a paging cycle according to a second embodiment of the present application. As shown in fig. 6:
step S601, the base station 102 sends broadcast including synchronizing primary and secondary timing (PSS, SSS), establishing a Physical Broadcast Channel (PBCH), and sending System Information Broadcasts (SIBs) to the UE 101.
In step S602, the base station 102 sends an extended SIB1(SIB1+ SIB1 Extension) message to the UE101, where the extended SIB1 is a supplement to the existing SIB1 message of 3GPP and is used to declare that the base station 102 can comply with some interaction content newly added in this embodiment, and specifically, includes the smart connection drx (smart cdrx) capability information of the base station 102.
Some of the newly added interactive contents may be regarded as supplements to the existing 3GPP protocol, and in this embodiment, the newly added interactive contents are specifically embodied as adding a plurality of messages in a Media Access Control (MAC) layer, so as to supplement Control words that specify some MAC layers.
In the present embodiment, an extended system information broadcast SIB1 is used between two pieces of hardware (e.g., a terminal and a base station) that comply with the newly added some interactive contents, and the extended system information broadcast SIB1 adds one byte to a standard system information broadcast SIB1 for mutually confirming between the two pieces of hardware whether a counterpart complies with the newly added some interactive contents.
The SmartCDRX capability information of the base station 102 indicates that the base station 102 has the capability to send paging information to the UE101 within a paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to a default paging cycle value.
Step S603 to step S612 establish an RRC connection between the base station 102 and the UE101 according to the current 3GPP protocol.
Step S613, the UE101 sends UE Capability Information to the base station 102, where the UE Capability Information includes SmartCDRX Capability Information of the UE 101. The 3GPP 36.331 protocol specifically defines and describes the UE Capability Information message. Here, the SmartCDRX capability information of the UE101 included in the message is newly added content for declaring special capabilities of the UE, such as SmartCDRX capability, due to adherence to some of the newly added interactive content. The SmartCDRX capability information indicates that the UE101 has the capability to receive paging information from the base station 102 within a paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to a default paging cycle value.
In this embodiment, the SmartCDRX capability information of the UE101 may be reported by the following codes:
Figure BDA0002658738960000201
in step S614, after receiving the SmartCDRX capability information of the UE101, the base station 102 activates the smart connection DRX function for the UE 101. Activating the smart connect DRX function for the UE101 means that the base station 102 needs to mark that the UE101 will use the user-specific DRX cycle as the paging cycle, instead of using the default paging cycle of the base station 102 as the paging cycle. Preferably, the base station 102 establishes a paging cycle management table for recording paging cycles of all user equipments communicating with the base station 102. After receiving the SmartCDRX capability information of the UE101, the base station 102 records in the table that the UE101 will use the user-specific DRX cycle, and writes the determined cycle value into the table at a later stage, and then pages the UE101 according to the determined cycle value in the following paging operation.
In step S615, the base station 102 transmits RRC Connection Reconfiguration to the UE101, which includes confirmation information of SmartCDRX capability of the UE101 and information of the designated logical channel number (LCID). The 3GPP 36.331 protocol specifically defines and describes the RRC Connection Reconfiguration message. Here, the confirmation information of the SmartCDRX capability of the UE101 and the information of the designated logical channel number (LCID) included in the message are contents that supplement the existing protocol in the present embodiment.
In this embodiment, the assignment of the logical channel may be implemented by the following codes:
Figure BDA0002658738960000202
wherein the information for confirming the SmartCDRX capability of the UE101 indicates whether the base station 102 accepts the SmartCDRX capability used by the UE 101.
Step S616, the UE101 sends an RRC Connection Reconfiguration Complete to the base station 102, wherein the RRC Connection Reconfiguration Complete includes first information indicating the user-specific DRX cycle value and indicating that the base station 102 uses the user-specific DRX cycle value or the first information indicating the user-specific DRX cycle value but not indicating that the base station 102 uses the user-specific DRX cycle value. The first information is included in the MAC CE (MAC control element) corresponding to the LCID indicated in step S615. For a description of MAC CE see below. The 3GPP 36.331 protocol specifically defines and describes the RRC Connection Reconfiguration Complete message. Here, the first information contained in the message is content that supplements the existing protocol in the present embodiment.
In the flowchart shown in fig. 6, the adjustment procedure between the UE101 and the base station 102 regarding the paging cycle is completed after the step S616 is executed. Other subsequent flows may be performed as specified by the 3GPP protocol, and for example, step S617 and step S618 may be performed again.
Comparing fig. 6 with the 3GPP standard procedure of the standard, it can be known that the setting of the SmartCDRX parameter (carrying the first information) is embedded in the 3GPP standard procedure. Firstly, in the system broadcast stage, the SIB1 message is attached with confirmation information to mutually confirm that the other parties abide by some newly added interactive contents, and then a private SmartCDRX parameter setting process is added after the standard RRC Connection Reconfiguration Complete, so that the existing process is fully utilized, the protocol modification of a core network is not involved, and the implementation process is simpler.
Specifically, according to some embodiments of the present application, the SmartCDRX parameter may be transmitted by using a MAC CE (Media Access Control Element) of a protocol reserved Logical Channel Id (LCID), where which LCID is specifically selected is specified by the base station 102 during end pipe (ue and bs) handshake.
The above embodiments are merely exemplary descriptions of signal flow diagrams for communication between the UE101 and the base station 102 to determine a paging cycle and perform paging according to the paging cycle, following some of the previously mentioned newly added interactive contents, and it should be understood by those skilled in the art that the signal flow diagrams may be implemented by other techniques. For example, the UE101 and the base station 102 may recognize the messages of step S602, step S613 to step S616. That is, even if the UE101 and the base station 102 comply with other private and public protocols, the embodiment can be implemented as long as the protocol includes the message interaction process described in step S602, step S613 to step S616.
A schematic diagram of selecting logical channels according to the second embodiment of the present application is illustrated below with reference to fig. 9, so as to illustrate a MAC CE structure. In the standard 3GPP protocol, the logical channels of the MAC layer reserve many reserved channels. For the uplink, the sub-headers with index numbers (LCID) of 01011-. One LCID may be selected from the LCIDs, and then a corresponding MAC CE (MAC Control element) is filled with the user-specific DRX cycle.
As shown in fig. 9, preferably, the MAC Control element includes 2 bytes, a bit7-bit4 of the first byte is used to indicate the version number of the terminal, a bit3-bit0 is used to indicate the type of the application, and the second byte is used to fill the content to be applied, such as the code of the user-specific DRX cycle.
The application type is information of a negotiation type of an idle paging cycle, wherein the negotiation type of the idle paging cycle indicates that the user equipment and the base station negotiate the type of the paging cycle. For example, the UE101 negotiates the paging cycle by the MAC CE at RRC _ CONNECTED indicating the type of "negotiation of idle paging cycle" currently.
The contents of the application are similar to bit8-bit5 of byte 3 of the DRX parameter in table 3, that is, the contents of the application can be an index, if 8 bits are defined in total, 256 user specific DRX cycles can be proposed. For example, 00000001 may be mapped to 64(T), 00000010 may be mapped to 128(T), … …, 11111111 may be mapped to 4096(T), and so on.
In the embodiment shown in fig. 6, the interaction process for adjusting the paging cycle between the UE101 and the base station 102 only occurs between the UE101 and the base station 102, that is, the interaction process is completed in the access network part, and the core network does not need to participate, thereby reducing the management pressure of the core network. Meanwhile, the interaction process between the UE101 and the base station 102 is limited to the MAC layer, the data transmission path is relatively short, and the control is relatively simple.
The above embodiments are merely exemplary descriptions of the paging cycle adjustment between the UE101 and the base station 102, and it should be understood by those skilled in the art that the first information is transmitted through a logical channel as a preferred embodiment, and the flowchart shown in fig. 6 may be implemented by other technical solutions.
Fig. 7 is a flow chart of a method of a user equipment according to a second embodiment of the present application. For a protocol-compliant UE101, the steps for adjusting the paging cycle are as follows:
step S71, the UE101 synchronizes timing with the base station 102, establishes a physical channel, and starts to receive system information broadcast SIBs issued by the base station, wherein the SIB2 includes a default paging cycle of the base station 102.
In step S72, the UE101 accepts an extended SIB1(SIB1+ SIB1 Extension) message issued by the base station 102, where the extended SIB1 is used to declare that the base station 102 can comply with the protocol, and includes SmartCDRX capability information of the base station 102.
In step S73, the UE101 interacts with the base station 102 according to the existing 3GPP standard until the RRC connection is established.
In step S74, the UE101 sends UE Capability Information to the base station 102, where the Information includes SmartCDRX Capability Information of the UE 101.
In step S75, the UE101 receives RRC Connection Reconfiguration sent by the base station 102, which includes confirmation information of SmartCDRX capability of the UE101 and information of the designated logical channel number (LCID).
At step S76, the UE101 sends an RRC Connection Reconfiguration Complete to the base station 102, wherein the RRC Connection Reconfiguration Complete includes first information indicating the user-specific DRX cycle value and indicating that the base station 102 uses the user-specific DRX cycle value or the first information indicating the user-specific DRX cycle value but not indicating that the base station 102 uses the user-specific DRX cycle value. The first information is included in the MAC CE (MAC control element) corresponding to the LCID indicated in step S615.
At step S77, the UE101 continues to interact with the base station 102 to complete the RRC Connection Reconfiguration procedure.
In step S78, when receiving the first PAGING message from the base station 102, the UE101 performs step S78, and when determining that the UE has received the UE-specific DRX cycle and instructs the base station 102 to use the UE-specific DRX cycle value, performs step S710 to receive a page from the base station 102 with the UE-specific DRX cycle value as a PAGING cycle between the UE101 and the base station 102. When the UE101 determines that the received value indicates the user-specific DRX cycle value but does not indicate the base station 102 to use the user-specific DRX cycle value, step S79 is executed, the UE101 compares the user-specific DRX cycle with the previously received default paging cycle, and takes the smaller value as a new paging cycle to receive paging of the base station 102 according to the new paging cycle. That is, when step S79 is executed, if the user specific DRX cycle is smaller than the default paging cycle, S710 is executed; if the user-specific DRX cycle is greater than the default paging cycle, step S711 is executed to receive the paging from the base station 102 with the default paging cycle value as the paging cycle value between the UE101 and the base station 102.
In the embodiment shown in fig. 7, the UE101 is shown to communicate the first information through a logical channel, which is essentially the same as the first embodiment shown in fig. 2 and 3, and the adjustment requirement of the UE is communicated through the first information, and then a new paging cycle is implemented by the base station. The new paging cycle is based on the extended discontinuous reception cycle parameter, so that eventually the paging cycle between the UE101 and the base station 102 can exceed the upper limit of 512T defined by the 3GPP standard, and further the user equipment can select the paging cycle in a wider range.
Further, the discontinuous reception cycle parameter is used in a message (for example, an RRC Connection Reconfiguration Complete message) other than the ATTACH REQUEST, which solves the defect that the user equipment can only adjust the discontinuous reception cycle once when the user equipment is powered on, so that the user equipment can adjust the paging cycle more flexibly.
The above embodiment is merely an example description of the paging cycle adjustment of the UE101 in the present application, and it should be understood by those skilled in the art that the transmission of the first information through the logical channel is only a preferred embodiment, and the flowchart shown in fig. 7 may be implemented by other technical solutions.
Fig. 8 is a flow chart of a method of the base station 102 according to the second embodiment of the present application. For the base station 102 that complies with the protocol, the steps for coordinating the UE101 to adjust the paging cycle are as follows:
step S81, the bs 102 sends a broadcast message, synchronizes timing with the UE101, establishes a physical channel, and starts to send system information broadcast SIBs to the UE101, wherein the SIB2 includes a default paging cycle of the bs 102.
In step S82, the base station 102 issues an extended SIB1(SIB1+ SIB1 Extension) message to the UE101, the extended SIB1 declaring that the base station 102 can comply with the protocol, which includes SmartCDRX capability information of the base station 102.
In step S83, the UE101 interacts with the base station 102 according to the existing 3GPP standard until the RRC connection is established.
In step S84, the base station 102 receives UE Capability Information sent by the UE101, where the UE Capability Information includes SmartCDRX Capability Information of the UE 101. At the same time, the base station 102 also activates the smart connect DRX functionality of the base station 102 for the UE 101. The smart connected DRX functionality of the base station 102 for the UE101 means that the base station 102 needs to mark that the UE101 will use the user-specific DRX cycle as a paging cycle, rather than the default paging cycle of the base station 102. Preferably, the base station 102 establishes a paging cycle management table for recording paging cycles of all user equipments communicating with the base station 102. After receiving the SmartCDRX capability information of the UE101, the base station 102 records in the table that the UE101 will use the user-specific DRX cycle, and writes the determined cycle value into the table at a later stage.
In step S85, the base station 102 transmits RRC Connection Reconfiguration to the UE101, which includes confirmation information of SmartCDRX capability of the UE101 and information of the designated logical channel number (LCID).
In step S86, the base station 102 receives the RRC Connection Reconfiguration Complete sent by the UE101, which includes the first information. The first information indicates the user-specific DRX cycle value and either indicates that the base station 102 uses the user-specific DRX cycle value or the first information indicates the user-specific DRX cycle value but does not indicate that the base station 102 uses the user-specific DRX cycle value. The first information is included in the MAC CE (MAC control element) corresponding to the LCID indicated in step S85.
At step S87, the base station 102 continues to interact with the UE101 to complete the RRC Connection Reconfiguration procedure.
Step S88, when the base station 102 receives the first PAGING message from the MME103, the base station 102 performs step S88, and when determining that the UE101 has received the UE specific DRX cycle and instructs the base station 102 to use the UE specific DRX cycle value, performs step S810, using the UE specific DRX cycle value as a PAGING cycle between the UE101 and the base station 102, to page the UE 101. When the base station 102 determines that the received value indicates the user-specific DRX cycle value but does not indicate the base station 102 to use the user-specific DRX cycle value, step S89 is executed, the base station 102 compares the user-specific DRX cycle with the previously received default paging cycle, and takes the smaller value as a new paging cycle to page the UE101 according to the new paging cycle. That is, when step S89 is executed, if the user specific DRX cycle is smaller than the default paging cycle, S810 is executed; if the user-specific DRX cycle is greater than the default paging cycle, step S811 is executed to page the UE101 with the default paging cycle value as the paging cycle value between the UE101 and the base station 102.
In the embodiment shown in fig. 8, the base station 102 is shown to communicate the first information through a logical channel, which is essentially the same as the first embodiment shown in fig. 2 and 4, and the adjustment requirement of the user equipment is communicated through the first information, and then a new paging cycle is implemented by the base station. The new paging cycle is based on the extended discontinuous reception cycle parameter, so that eventually the paging cycle between the UE101 and the base station 102 can exceed the upper limit of 512T defined by the 3GPP standard, and further the user equipment can select the paging cycle in a wider range.
Further, the discontinuous reception cycle parameter is used in a message (for example, an RRC Connection Reconfiguration Complete message) other than the ATTACH REQUEST, which solves the defect that the user equipment can only adjust the discontinuous reception cycle once when the user equipment is powered on, so that the user equipment can adjust the paging cycle more flexibly.
The above embodiment is merely an example description of the paging cycle adjustment of the base station 102 in the present application, and it should be understood by those skilled in the art that the transmission of the first information through the logical channel is only a preferred embodiment, and the flowchart shown in fig. 8 may be implemented by other technical solutions.
Further, since the protocol improvements of some embodiments shown in fig. 6 to 8 do not relate to the core network, and the core network still issues paging according to its inherent period, when the RRC Request message carries the TMSI (Temporary Mobile Subscriber Identity) of the UE101 when the RRC connection is established, the U101E may negotiate the paging period with the base station 102.
Further, the base station 102 records the negotiated user-specific DRX cycle (essentially, the aforementioned DRX cycle factor) and the TMSI of the UE101, so that the paging cycle for the UE101 can be determined later with reference to the TMSI.
Further, when the TMSI value in the paging message (paging) sent by the MME103 (i.e. the TMSI of the UE101) is consistent with the TMSI stored by the base station 102, the base station 102 sends the paging message to the UE101 according to the user-specific DRX cycle. After the TMSI of the UE101 is changed, the UE101 and the base station 102 resume using the default paging cycle delivered in the SIB2, and the UE101 may renegotiate the paging cycle through the MAC CE if necessary.
Further, for the entire communication system, in order to prevent resource consumption (occupation) of the base station 102, all negotiated data between the user equipment requesting the user-specific DRX cycle and the base station 102 may also be cleared at a certain fixed time of the day. If the user equipment needs to negotiate again, the base station can store the negotiation data for 24 hours at the maximum.
Further, when the UE101 needs to adjust the paging cycle, the MAC CE negotiation may be triggered only when the current TMSI of the UE101 is carried during the RRC establishment.
With the development of services, more diversified user appeals are urged, for example, the appeal focus of a child watch lies in: ensuring two key functions of conversation and positioning; ② ultra-low power consumption and ultra-long standby. As can be seen from the analysis of the user behavior of the particular smart terminal, the child watch is in idle mode most of the time (e.g., it must be in idle mode during the class period). In Idle mode (Idle mode), the main behavior (function) of the terminal is to monitor paging messages sent by the communication network. If the communication module of the mobile phone is directly implanted on the UE with the low-speed and low-frequency requirements, the problems of power consumption, excessive performance, high cost and the like can occur, and the current expectation on the intelligent terminal is not met. The embodiment is provided to further reduce the power consumption of the intelligent terminal, and a person skilled in the art can design an intelligent terminal with lower power consumption on the basis of the combination of the embodiment or the embodiment, so as to further improve the competitiveness of a product.
In a second embodiment, depicted by fig. 6-8, the communication protocol between UE1.01 and base station 102 is augmented with the declaration, use, etc. of SmartCDRX capabilities. In this embodiment, the related content is carried by using the existing S1B 1, RRC Connection Reconfiguration Complete, and UE Capability Information messages, that is, the four messages are defined complementarily. It will be appreciated by those skilled in the art that the present embodiment is proposed to illustrate how SmartCDRX capability is implemented between the UE and the base station via logical channels, and is not merely intended to supplement the definition of the above four messages. Achieving the SmartCDRX capability described above through a complementary definition to existing messages is one of the best choices made by the present application. One skilled in the art can also carry the SmartCDRX capable application procedure by adding new messages (names) or by other existing messages according to the inventive concept of the present application. The present application is not so limited.
FIG. 10 is a schematic diagram of a UE101 according to an embodiment of the present application.
The UE101 may include a processor 1000, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) connector 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identification Module (SIM) card interface 195, and the like. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.
It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the UE 101. In other embodiments of the present application, the UE101 may include more or fewer components than illustrated, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Processor 1000 may include one or more processing units, such as: the processor 1000 may include a Central Processing Unit (CPU), a Microprocessor (MCU), an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc.
The modem is configured to modulate a baseband signal to be transmitted into a modulated signal that can be transmitted through the antenna according to a protocol of 3GPP, and demodulate a signal received by the antenna into a baseband signal that can be processed by a processor of the UE 101. The different processing units may be separate devices or may be integrated in one or more processors.
The processor can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.
A memory may also be provided in processor 1000 for storing instructions and data. In some embodiments, the memory in processor 1000 is a cache memory. The memory may hold instructions or data that have just been used or recycled by processor 1000. If the processor 1000 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 1000, thereby increasing the efficiency of the system.
In some embodiments, processor 1000 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, and a Subscriber Identity Module (SIM) interface.
The wireless communication function of the UE101, for example, the cell search method according to the embodiment of the present application, can be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, the baseband processor, and the like.
The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the UE101 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.
The mobile communication module 150 may provide a solution for wireless communication including 2G/3G/4G/5G, etc. applied on the UE 101. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 1000. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 1000. As shown in fig. 5, the NAS layer, the RRC layer, and the PHY layer described above according to an embodiment of the present application may be provided as functional modules in the mobile communication module 150.
The modem processor may include a modulator and a demodulator. The modulator is used for modulating a low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then passes the demodulated low frequency baseband signal to a baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.) or displays an image or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be separate from the processor 1000, and may be disposed in the same device as the mobile communication module 150 or other functional modules.
In some embodiments, the antenna 1 of the UE101 is coupled to the mobile communication module 150 and the antenna 2 is coupled to the wireless communication module 160 so that the UE101 can communicate with the network and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc.
The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the UE 101. The external memory card communicates with the processor 1000 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card. In an embodiment of the present application, the cell search parameter table may be stored in an external memory card connected through the external memory interface 120.
The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The stored data area may store data (e.g., audio data, phone book, etc.) created during use of the UE101, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 1000 executes various functional applications of the UE101 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory disposed in the processor. In an embodiment of the present application, the internal memory 121 may be used to store a cell search parameter table, and the processor 1000 may be configured to perform a cell search method according to the embodiments shown in fig. 3-4.
The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the UE101 by being inserted into the SIM card interface 195 or pulled out of the SIM card interface 195. The UE101 may support 1 or N SIM card interfaces, with N being a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The UE101 interacts with the network through the SIM card to realize functions such as conversation, data communication and the like. In some embodiments, the UE101 employs eSIM, namely: an embedded SIM card. The eSIM card can be embedded in the UE101 and cannot be separated from the UE 101. In embodiments of the present application, information of a wireless communication network, such as a PLMN, may be stored in the SIM card.
The method embodiments of the present application may be implemented in software, magnetic, firmware, etc.
Program code may be applied to input instructions to perform the functions described herein and generate output information. The output information may be applied to one or more output devices in a known manner. For purposes of this application, a processing system includes any system having a processor such as, for example, a Digital Signal Processor (DSP), a microcontroller, an Application Specific Integrated Circuit (ASIC), or a microprocessor.
The program code may be implemented in a high level procedural or object oriented programming language to communicate with a processing system. The program code can also be implemented in assembly or machine language, if desired. Indeed, the mechanisms described herein are not limited in scope to any particular programming language. In any case, the language may be a compiled or interpreted language.
One or more aspects of at least one embodiment may be implemented by representative instructions stored on a computer-readable storage medium, which represent various logic in a processor, which when read by a machine causes the machine to fabricate logic to perform the techniques described herein. These representations, known as "IP cores" may be stored on a tangible computer-readable storage medium and provided to a number of customers or manufacturing facilities to load into the manufacturing machines that actually make the logic or processor.
While the description of the present application will be described in conjunction with the preferred embodiments, it is not intended that the features of the present application be limited to this embodiment. Rather, the invention has been described in connection with embodiments for the purpose of covering alternatives and modifications as may be extended based on the claims of the present application. In the following description, numerous specific details are included to provide a thorough understanding of the present application. The present application may be practiced without these particulars. Moreover, some of the specific details have been omitted from the description in order to avoid obscuring or obscuring the focus of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Further, various operations will be described as multiple discrete operations, in a manner that is most helpful in understanding the illustrative embodiments; however, the order of description should not be construed as to imply that these operations are necessarily order dependent. In particular, these operations need not be performed in the order of presentation.
As used herein, the term "module" or "unit" may refer to, be, or include: an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and/or memory that executes one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that provide the described functionality.
In the drawings, some features of the structures or methods are shown in a particular arrangement and/or order. However, it is to be understood that such specific arrangement and/or ordering may not be required. In some embodiments, these features may be arranged in a manner and/or order different from that shown in the illustrative figures. Additionally, the inclusion of structural or methodical features in a particular figure is not meant to imply that such features are required in all embodiments, and in some embodiments, these features may not be included or may be combined with other features.
Embodiments of the mechanisms disclosed herein may be implemented in hardware, software, firmware, or a combination of these implementations. Embodiments of the application may be implemented as computer programs or program code executing on programmable systems comprising multiple processors, a storage system (including volatile and non-volatile memory and/or storage elements), multiple input devices, and multiple output devices.
Program code may be applied to input instructions to perform the functions described herein and generate output information. The output information may be applied to one or more output devices in a known manner. For purposes of this application, a processing system includes any system having a processor such as, for example, a Digital Signal Processor (DSP), a microcontroller, an Application Specific Integrated Circuit (ASIC), or a microprocessor.
The program code may be implemented in a high level procedural or object oriented programming language to communicate with a processing system. The program code can also be implemented in assembly or machine language, if desired. Indeed, the mechanisms described in this application are not limited in scope to any particular programming language. In any case, the language may be a compiled or interpreted language.
In some cases, the disclosed embodiments may be implemented in hardware, firmware, software, or any combination thereof. In some cases, one or more aspects of at least some embodiments may be implemented by representative instructions stored on a computer-readable storage medium, which represent various logic in a processor, which when read by a machine causes the machine to fabricate logic to perform the techniques described herein. These representations, known as "IP cores" may be stored on a tangible computer-readable storage medium and provided to a number of customers or manufacturing facilities to load into the manufacturing machines that actually make the logic or processor.
Such computer-readable storage media may include, but are not limited to, non-transitory tangible arrangements of articles of manufacture or formation by machines or devices that include storage media such as: hard disk any other type of disk including floppy disks, optical disks, compact disk read-only memories (CD-ROMs), compact disk rewritables (CD-RWs), and magneto-optical disks; semiconductor devices such as Read Only Memory (ROM), Random Access Memory (RAM) such as Dynamic Random Access Memory (DRAM) and Static Random Access Memory (SRAM), Erasable Programmable Read Only Memory (EPROM), flash memory, Electrically Erasable Programmable Read Only Memory (EEPROM); phase Change Memory (PCM); magnetic or optical cards; or any other type of media suitable for storing electronic instructions.
Thus, embodiments of the present application also include non-transitory computer-readable storage media that contain instructions or that contain design data, such as Hardware Description Language (HDL), that define the structures, circuits, devices, processors, and/or system features described herein.

Claims (22)

1. A paging method for a user equipment, comprising:
receiving a default paging cycle value from a base station;
determining a user-specific Discontinuous Reception (DRX) cycle value in case it is determined that the DRX cycle needs to be adjusted;
transmitting first information to a base station or a Mobility Management Entity (MME), the first information indicating the user-specific DRX cycle value and indicating that the base station uses the user-specific DRX cycle value, or indicating the user-specific DRX cycle value but not indicating that the base station uses the user-specific DRX cycle value; and
receiving paging information from the base station within a paging cycle determined based on the user-specific DRX cycle value, if the first information indicates the user-specific DRX cycle value and indicates the base station to use the user-specific DRX cycle value.
2. The method of claim 1, further comprising:
in a case that the first information includes the user-specific DRX cycle value but does not instruct the base station to use the user-specific DRX cycle value, determining the paging cycle based on a smaller value between the default paging cycle value and the user-specific DRX cycle value, and receiving the paging information from the base station within the paging cycle.
3. The method of claim 1 or 2, further comprising
And judging whether the DRX period needs to be adjusted or not according to at least one of the service type of the communication between the user equipment and the base station, the power consumption of the user equipment and the service time of the user equipment.
4. The method according to any of claims 1-3, wherein said first information is included in an ATTACH REQUEST sent to said MME or a ULInformationTransfer sent to said base station.
5. The method as claimed in claim 4, wherein the first information is comprised of CN specific DRX cycle length coefficient and DRX Value for S1 Mode among DRX parameters in the ATTACH REQUEST or the ULInformationTransfer.
6. The method of any one of claims 1-3, wherein the first information is included in a medium access control layer control element (MAC CE) in an RRC connection configuration complete sent to the base station.
7. The method of any one of claims 1-6, further comprising:
receiving base station Smart connected DRX (Smart CDRX) capability information from the base station, wherein the base station SmartCDRX capability information indicates that the base station has the capability to send the paging information to the user equipment within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value.
8. The method of claim 7, wherein the base station SmartCDRX capability information is included in SIB1 Extension.
9. The method of claim 7 or 8, further comprising:
transmitting user equipment SmartCDRX capability information to the base station, wherein the user equipment SmartCDRX capability information indicates that the user equipment has the capability to receive the paging information from the base station within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value; and
receiving user equipment SmartCDRX capability confirmation information from the base station, wherein the user equipment SMartCDRX capability confirmation information indicates whether the base station supports the user equipment to use the SmartCDRX capability.
10. The method of claim 9, wherein the user equipment SmartCDRX capability information is included in UE capability information, and wherein the user equipment SmartCDRX capability confirmation information is included in RRC Connection Reconfiguration.
11. The method of any of claims 1-10, wherein the user-specific DRX cycle value is greater than the default paging cycle value, or greater than 2560 milliseconds.
12. A paging method for a base station, comprising:
transmitting a default paging cycle value to the user equipment;
receiving first paging information from a Mobility Management Entity (MME), wherein the first paging information indicates a user-specific Discontinuous Reception (DRX) cycle value and indicates that a network uses the user-specific DRX cycle value, or indicates the user-specific DRX cycle value but does not indicate that the base station uses the user-specific DRX cycle value;
transmitting second paging information to the user equipment within a paging cycle determined based on a smaller value between the user-specific DRX cycle value and the default paging cycle value, in case the first paging information includes the user-specific DRX cycle value but does not instruct the base station to use the user-specific DRX cycle value; and
transmitting the second paging information to the user equipment within the paging cycle determined based on the user specific DRX cycle value, if the first paging information includes the user specific DRX cycle value and indicates that the network uses the user specific DRX cycle value.
13. The method of claim 12, wherein the user-specific DRX cycle value, or the user-specific DRX cycle value and the indication that the network uses the user-specific DRX cycle value, are included in a paging DRX (paging DRX) parameter in the first paging information.
14. The method of any one of claims 12-13, comprising:
receiving a ULInformationTransfer from the user equipment, the ULInformationTransfer comprising the user-specific DRX cycle value and the indication that the network uses the user-specific DRX cycle value, or the user-specific DRX cycle value but not the indication that the network uses the user-specific DRX cycle value; and
forwarding the user specific DRX cycle value, or the user specific DRX cycle value and an indication to a network to use the user specific DRX cycle value, to the MME.
15. The method of claim 14, wherein the user-specific DRX cycle value, or the user-specific DRX cycle value and the DRX parameter indicating that the network uses the user-specific DRX cycle value, are included in the ulinformationtransmitter.
16. A paging method for a base station, comprising:
transmitting a default paging cycle value to the user equipment;
receiving first information from a user equipment, the first information indicating the user-specific Discontinuous Reception (DRX) cycle value;
when a Temporary Mobile Subscriber Identity (TMSI) included in a paging message issued by a Mobility Management Entity (MME) is consistent with the TMSI of the UE, sending the paging information to the UE within the paging cycle determined based on the user-specific DRX cycle value.
17. The method of claim 16, further comprising:
the first information is included in a MAC control element (MAC CE) of a logical channel number (LCID) specified in an RRC connection Reconfiguration Complete.
18. The method of claim 16 or 17, wherein the MAC CE includes information indicating a negotiation type for which the application type is an idle paging cycle, wherein the negotiation type for the idle paging cycle indicates that the user equipment negotiates the type of the paging cycle with the base station.
19. The method of any one of claims 16-18, further comprising:
transmitting base station Smart connected DRX (Smart CDRX) capability information to the user equipment, wherein the base station SmartCDRX capability information indicates that the base station has the capability to transmit the paging information to the user equipment within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value;
receiving user equipment SmartCDRX capability information from the user equipment, wherein the user equipment SmartCDRX capability information indicates that the user equipment has the capability to receive the paging information from the base station within the paging cycle determined based on the user-specific DRX cycle value without comparing the user-specific DRX cycle value to the default paging cycle value; and
and sending SmartCDRX capability confirmation information of the user equipment to the user equipment, wherein the SmartCDRX capability confirmation information of the user equipment indicates whether the base station accepts the SmartCDRX capability used by the user equipment.
20. The method of any of claims 17-19, wherein the base station SmartCDRX Capability Information is included in SIB1 Extension, the user equipment SmartCDRX Capability is included in UE Capability Information, and the user equipment SmartCDRX Capability confirmation Information is included in RRC connection Reconfiguration.
21. The method of any of claims 17-20, wherein the user specific DRX cycle value may be greater than the default paging cycle value, or greater than 2560 ms.
22. An electronic device, comprising:
a memory for storing instructions for execution by the one or more processors;
a processor, being one of the processors of the electronic device, for performing the method of any one of claims 1-11.
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