CN101155402A - Device and method for transmitting clarification identifier in paging control channel - Google Patents

Abstract

A device and method for transmitting a clarification identifier in a paging control channel in a wireless communication system, comprising steps: a base station sends configuration information about paging in a broadcast control channel; The paging control channel transmission time and the paging group to which it belongs; at the paging control channel transmission time, the base station sends a paging message including the paging identifier and clarification identifier obtained by the paging group in the paging control channel Paging control information, the clarification flag is an flag indicating whether the user needs to read the paging information; the base station sends the paging channel on the resource block indicated by the paging control channel. By adopting the method of the present invention, the number of times the user equipment reads the paging message is greatly reduced through the transmission of the clarification identification, thereby reducing the power consumption of the user equipment and prolonging the standby time.

Description

Device and method for transmitting clarification identifier in paging control channel

technical field

The present invention relates to a wireless communication system, in particular to a device and a method for transmitting clarification signs in a paging control channel in the wireless communication system.

Background technique

Now, the 3GPP standardization organization has embarked on a long-term evolution (LTE, Long Term Evolution) of its existing system specifications. Among the many physical layer transmission technologies, downlink transmission technology based on Orthogonal Frequency Division Multiplexing (hereinafter referred to as OFDM) and single carrier frequency division multiple access (Single Carrier Frequency Division Multiple Access, hereinafter referred to as SC) -FDMA) uplink transmission technology is a research hotspot. OFDM technology is essentially a multi-carrier modulation communication technology. Its basic principle is to decompose a high-rate data stream into several low-rate data streams and transmit them simultaneously on a group of mutually orthogonal sub-carriers. OFDM technology has performance advantages in many aspects due to its multi-carrier nature. SC-FDMA technology is essentially a single-carrier transmission technology, and its signal peak-to-average ratio (Peak to Average Power Ratio, hereinafter referred to as PAPR) is relatively low, so that the power amplifier of the mobile terminal can work with higher efficiency and expand the coverage of the cell. Coverage, while adding cyclic prefix (Cyclic Prefix) and frequency domain equalization, its processing complexity is relatively low.

According to the existing discussions on LTE, as shown in Figure 1, the downlink frame structure of the LTE system is shown. The radio resources in the LTE system refer to the time and frequency resources that the system or user equipment can occupy. ) (101-103) as a unit to distinguish, the time length of the wireless frame is the same as the time length of the wireless frame of the WCDMA system, that is, the time length is 10ms; each frame is subdivided into multiple sub-frames (Sub-frame) ( 104-107), the current assumption is that each radio frame contains 20 subframes, and the time length of the subframe is 0.5ms; each subframe contains multiple OFDM symbols. According to the current assumption, the effective OFDM symbol time in the LTE system The length is about 66.7μs. The time length of the CP of the OFDM symbol can be two kinds, that is, the time length of the short CP is about 4.8 μs, and the time length of the long CP is about 16.7 μs. The long CP subframe is used for multi-cell broadcast/multicast and the cell radius is very large. In this case, the short CP subframe (108) includes 7 OFDM symbols, and the long CP subframe (109) includes 6 OFDM symbols.

In the current LTE discussion, there are two basic ways of dividing channel resources. The first is a localized transmission channel, that is, some continuous subcarriers are divided into a channel as resource blocks. This method is conducive to the use of multi-user diversity, thereby providing higher system throughput. The other is a distributed transmission channel, that is, the time-frequency resources allocated to a certain user are distributed to the entire or part of the frequency band according to a certain rule, so that the gain of frequency diversity is relatively large.

The scheduling and transmission of user data is based on the resource block as the basic unit. In the current discussion on the division of LTE downlink channel resources, the concepts of physical resource block (Physical resource block) and virtual resource block (Virtual resource block) are proposed. A physical resource block includes M consecutive subcarriers in the frequency domain and N OFDM symbols in time. The virtual resource block is an abstraction of channel resources above the physical resource block, and the virtual resource block is divided into a distributed virtual resource block and a localized virtual resource block. The distributed virtual resource block corresponds to the resource of the distributed transmission channel, and the localized virtual resource block corresponds to the resource of the localized transmission channel.

Different from fixed communication, the location of the user terminal in the mobile communication system is not fixed, so when the network needs to initiate a call or establish a connection, it must be able to find the target user equipment. The paging channel is designed for this purpose. Its function is to paging the user equipment in the idle state on the one hand, and on the other hand, the paging channel can also broadcast the information of the current system configuration change.

In the existing WCDMA system, whether paging information is currently sent is indicated through a paging indicator channel (Paging Indicator Channel, hereinafter referred to as PICH) in the physical layer. According to the system configuration, N _p paging indicator bits can be transmitted in each PICH frame of 10 ms, where N _p can be 18, 36, 72 or 144. The network device calculates the paging indication for the user equipment that needs to be paged. Each paging indication corresponds to a group of user equipment, that is, a paging group. These paging indications are mapped to the paging indication bits in the physical layer PICH through a certain algorithm. . In this way, when the network needs to page one or more user equipments, it first calculates its paging indication, then obtains its physical layer paging indication bits according to the mapping algorithm, and sends '1' on these physical layer paging indication bits, Indicates that the current network pages the user equipments in these paging groups; then the base station sends paging information to the paged user equipments on the corresponding secondary common control channel (S-CCPCH). The operation of the user equipment is to first calculate its paging indication, that is, to obtain the paging group it belongs to, and then the user equipment maps the calculated paging indication to obtain the physical layer paging indication bit, so as to monitor the paging indication bit, if After receiving '1', the user equipment receives paging information on the corresponding secondary common control channel.

In the LTE system, the network also needs to send paging information. In the current discussion, there are two basic methods of sending paging information, one method is to set the paging control channel and paging data channel; the other method is to directly send the paging data channel without setting the paging control channel . Because the second method has certain limitations, the first method is mainly discussed here.

According to the current discussions in LTE, the control information contained in the paging control channel includes: 1) paging group identifier (Group ID), which is used to indicate the user group that needs to receive the subsequent paging channel; 2) mapping information (Mapping Information), used to indicate the time-frequency position of the subsequent paging channel PCH. The information transmitted in the paging channel includes: 1) user equipment identification number (User ID), which is used to transmit the identification number of the user equipment paged by the network, and in the W-CDMA system, the Temporary Mobile Subscriber Identity (Temporary Mobile Subscriber Identity) , hereinafter referred to as TMSI) or International Mobile Subscriber Identity (International Mobile Station Identity, hereinafter referred to as IMSI) as the identification number of the user equipment; 2) paging cause identification number (Paging Cause ID), used to indicate the originating paging Reason, such as business type, etc.

According to the discussion progress of the current LTE system, there are two methods for the base station to allocate resource blocks for transmitting paging information. The first method is to statically pre-define resource blocks for transmitting paging information. In this way, the base station can predefine a part or all of the system bandwidth to transmit paging information. At this time, only the number of resource blocks currently allocated to the paging channel needs to be transmitted in the paging control channel. According to the number of resource blocks allocated to the paging channel, the base station can obtain a one-to-one correspondence for the paging transmission. Which resource blocks in the resources of the paging information are used to transmit the paging information. The second method is to dynamically allocate resources for transmitting paging information, that is, the resources used for transmitting paging information depend on the results of time-domain and frequency-domain scheduling of the shared data channel. A typical way of dynamically allocating resources is to perform frequency domain scheduling for the shared data channel preferentially, and the paging information can only use the remaining resource blocks. This ensures the frequency scheduling gain for the shared data channel, but reduces the frequency diversity effect of the paging channel to a certain extent. Another way of dynamically allocating resources is that the base station takes into account both the transmission performance of the shared data channel and the transmission performance of the paging channel, so as to achieve a compromise between the frequency scheduling gain of the shared data channel and the diversity gain of the paging channel. With the method of dynamic allocation, compared with the method of predefining paging channel resources, the number of bits indicating resource allocation in the paging control channel increases.

In the current LTE discussion on the downlink shared control channel, there are two basic methods. The first method is to separately encode the control signaling of each user equipment currently scheduled, and then map them to independent resources for transmission. The advantage is that the base station can select an appropriate code for its control signaling according to the channel conditions of each user equipment. The modulation mode and power control are performed, so that the power requirement for transmitting control signaling is low. The second method is that the base station gathers the control signaling of multiple currently scheduled user equipments into one information block and encodes and sends them together. At this time, the base station includes the currently scheduled user identification list in the jointly coded control signaling, and can The indication information of allocated resources of multiple user equipments is jointly optimized, thereby reducing the number of bits required to indicate resource allocation information; however, because the jointly encoded control information has to be set according to the user equipment with the worst channel conditions, the coding modulation mode and transmission power, which may result in an increase in the required power.

In the current discussion on shared control channels in LTE, the downlink shared control information is classified. The first category includes control information such as user equipment identification and assigned resource block indication information; the second category includes control information such as modulation schemes and antenna configuration parameters; the third category includes control information related to hybrid automatic repeat request (Hybrid ARQ) information. In the current discussion, one way to send control signaling is to encode the above three types of control information and send them simultaneously in the shared control channel; the second way to send control signaling is to put the first type of control information in the The control information of the second type and the third type for a certain user equipment is sent in the data channel allocated to it by the base station.

In the current discussion of LTE, there are four methods for transmitting paging control information. The first method is that the base station transmits the paging control information of a user equipment in each paging control channel; the second method is that the base station transmits paging control information in each paging control channel; The paging control information of multiple user equipments in the same paging group is transmitted in one paging control channel; the third method is that the base station transmits the paging control information of multiple user equipments in each paging control channel, and Each user equipment belongs to a different paging group; the fourth method is that the base station transmits paging control information of multiple user equipments in each paging control channel, and each user equipment can belong to the same paging group, or Can belong to different paging groups.

In the current discussion of LTE, there are two methods for designing the paging control channel. The first method is to use the downlink shared control channel to transmit paging control information. This method is called the shared paging control channel method in the following , that is, the format of the paging control channel is compatible with that of the shared control channel; another method is to set a new channel for transmitting paging control information, and this method is called an independent paging control channel method hereinafter.

In the current discussion of LTE, since a paging group contains multiple user equipments, when the user equipment detects that the base station is paging the paging group it belongs to through the paging control channel, the user equipment needs to read the The paging channel indicated by the paging control channel. Since the paging group contains multiple user equipments, the user equipment is not paged in most cases, so the operation of reading the paging data channel is unnecessary in most cases, which consumes too much user equipment power, shortening the standby time.

Contents of the invention

The object of the present invention is to provide a device and method for transmitting clarification signs in a paging control channel in a wireless communication system.

According to one aspect of the present invention, a method for transmitting a clarification identifier in a paging control channel in a wireless communication system is proposed, comprising the steps of:

a) The base station sends configuration information about paging in the broadcast control channel;

b) The base station determines the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment to be paged;

c) During the transmission time of the paging control channel, the base station sends the paging control information including the paging identifier obtained by the paging group and the clarification identifier in the paging control channel, and the clarification identifier indicates that the user Whether it is necessary to read the identification of paging information;

d) The base station sends the paging channel on the resource block indicated by the paging control channel.

According to another aspect of the present invention, a method for user equipment receiving paging information is also proposed, including the following steps:

a) The user equipment receives configuration information about paging in the broadcast control channel;

b) The user equipment monitors the paging control channel at the transmission time of the paging control channel corresponding to its user equipment identifier, and judges according to the paging identifier whether the base station has sent paging information to the paging group it is in; If the paging group sent paging information, it is further judged according to the clarification flag whether it is necessary to read the paging channel;

c) If it is determined according to the clarification identification that the paging channel needs to be read, the user equipment receives and decodes the paging channel, and judges whether the base station has sent paging information for it.

According to another aspect of the present invention, a device for transmitting paging information at the base station side is also proposed, including a transmitting part, and further comprising:

The paging configuration information generator module is used to generate paging configuration information.

A scheduler module, configured to calculate the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment that needs to be paged;

A paging control information generator module, configured to generate paging control information including the paging identifier and clarification identifier obtained by the paging group;

The physical channel multiplexer module is used to multiplex the generated paging control information on the paging control channel, and multiplex the paging information on the paging channel.

According to another aspect of the present invention, a device for receiving paging information at the user equipment side is also proposed, including a receiving part, and further including:

The paging configuration information processor module is used to analyze the configuration information of paging in the broadcast control signaling;

The paging control signaling processor module is used to determine whether the base station has sent paging information to its paging group according to the paging identifier; if it is determined that the base station has sent paging information to its paging group, then according to the clarification The identification further determines whether it is necessary to read the paging channel;

A physical channel demultiplexer module for demultiplexing paging control information and data from received base station signals;

The paging information processing module is used for receiving and decoding the paging channel, and judging whether the base station has sent paging information for the user according to the user identification.

By adopting the method for transmitting clarification signs in the paging control channel proposed by the present invention, the number of times the user equipment reads paging messages can be greatly reduced, thereby reducing the power consumption of the user equipment and prolonging the standby time.

Description of drawings

The above objects, advantages and features of the present invention will become apparent by referring to the following detailed description of preferred embodiments employed in conjunction with the accompanying drawings, wherein:

Fig. 1 is the frame structure of the downlink OFDM system in LTE;

FIG. 2 is an example of the first processing method for the base station to transmit the paging control channel;

FIG. 3 is an example of the second processing method for the base station to transmit the paging control channel;

Fig. 4 is a device diagram of base station processing paging information;

Fig. 5 is a device diagram of user equipment processing paging information;

Fig. 6 is the flowchart example of user equipment;

Figure 7 is an example of a hardware block diagram of a base station transmitter;

Figure 8 is an example of a hardware block diagram of a user equipment receiver.

Detailed ways

The present invention proposes a device and method for transmitting clarification signs in a paging control channel in a wireless communication system, including the following steps:

Operation of the base station:

The base station sends configuration information about paging in the broadcast control channel;

The base station determines the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment to be paged;

During the transmission time of the paging control channel, the base station transmits the paging identifier obtained by the paging group in the paging control channel, clarifying the identifier (that is, an identifier that further reduces the need for the user equipment to read paging information) and other relevant control information;

The base station sends the paging channel on the resource blocks indicated by the paging control channel.

The main purpose of clarifying the identity is to further reduce the need for user equipment to read paging information. It is clarified that the content of the identification transmission is the information in the user equipment identification number that has nothing to do with the listening time of the paging control channel of the user equipment and the paging group it belongs to.

Generally speaking, both the monitoring time of the paging control channel of the user equipment and the paging group to which it belongs are calculated from the identification number of the user equipment, and the two are irrelevant. For example, when the user equipment identification number is IMSI, it is assumed that the base station configures N paging control channel transmission times L ₀ , L ₁ ,..., L _N-1 , if the IMSI value of the user equipment is IMSI _i , an algorithm for calculating the transmission time of the paging control channel that the user equipment needs to monitor is: the transmission time of the paging control channel that the user equipment monitors is L _IMSIimodN , where xmody represents the remainder of dividing x by y. Assuming that a maximum of M paging groups G ₀ , G ₁ , ..., G _M-1 will be paged at the same time at each paging control channel transmission time, then the paging group monitored by the user equipment is G _{(IMSIi/ N)modM} , where x/y represents the quotient of x divided by y. It should be noted here that both L _IMSIimodN and G _{(IMSIi/N)modM} are calculated from IMSI _i , and they have nothing to do with each other. Setting the clarification flag requires P bits to be transmitted, so one way to detect the clarification flag is: the user equipment whose IMSI value is IMSI _i detects whether the value of the clarification flag is (IMSI _i /N/M)mod(2 ^P ) .

In step a) of the present invention, the base station sends configuration information for paging in a broadcast channel. The base station configures the currently reserved user identity for indicating the paging group through the broadcast control channel. One way is that each user ID corresponds to a paging group; the other way is that each user ID corresponds to a paging group combination index, that is, corresponds to multiple paging groups.

In step b) of the present invention, the base station determines the corresponding transmission time of the paging control channel and the paging group to which it belongs according to the identity of the user equipment to be paged. The user equipment identifier may be IMSI, TMSI or P-TMSI (Packet-Temporary Mobile Subscriber Identity), or other user identifier information. It is assumed that the base station configures N paging control channel transmission times L ₀ , L ₁ , ..., L _N-1 for all user equipments during the interval between two times of monitoring the paging control channel of the user equipment, and in each paging control channel At most M paging groups G ₀ , _{G 1 ,} . In addition, the user equipment identification number is set as IMSI, and the value of the IMSI of the paged user equipment is IMSI _i . Then an algorithm for calculating the paging control channel transmission time corresponding to the user equipment and the paging group to which it belongs is: the transmission time of the paging control channel corresponding to the user equipment is L _IMSIimodN , and the paging control channel monitored by the user equipment The paging group is G _{(IMSIi/N)modM} ; another algorithm is: the transmission time of the paging control channel corresponding to the user equipment is L _{(IMSIi/M)modN} , and the paging group monitored by the user equipment is G _IMSIimodM .

In step c) of the present invention, at the transmission time of the paging control channel, the base station sends the paging identifier obtained by the paging group in the paging control channel, and clarifies the identifier and other related control information.

个比特来表示，其中

代表对x进行向上取整操作。对应于共享寻呼信道方式，当每个寻呼控制信道传输时刻会最多同时寻呼M个寻呼组时，基站在下行共享控制信道的标识中预留M个标识作为寻呼标识，寻呼标识需要的比特数与下行共享控制信道所用标识的比特数相同。寻呼标识在寻呼控制信道中有两种方式传输。一种方式是寻呼标识单独传输；另外一种方式是寻呼标识与由寻呼控制信道中其余信息计算而得的循环冗余校验(CyclicRedundancy Check，以下简称CRC)掩模(Mask，通常为异或XOR操作)后传输。在本处理方式中，澄清标识起到降低一个用户设备读取寻呼信息需求的作用。澄清标识传输的内容是用户设备标识号中与用户设备寻呼控制信道监听时刻和所属寻呼组均无关的信息。假设基站在用户设备两次监听寻呼控制信道的间隔内为所有的用户设备配置了N个寻呼控制信道传输时刻L₀，L₁，...，L_N-1，并且在每个寻呼控制信道传输时刻会最多同时寻呼M个寻呼组G₀，G₁，...，G_M-1。另外设定用户设备标识号(IMSI、TMSI或者P-TMSI，或者其他用户标识信息)的取值为ID_i。则一种计算该用户设备所对应的寻呼控制信道传输时刻以及所属的寻呼组的算法为：该用户设备所对应的寻呼控制信道传输时刻为L_IDimodN，而且该用户设备所监听的寻呼组为G_(IDi/N)modM；另一种算法为：该用户设备所对应的寻呼控制信道传输时刻为L_(IDi/M)modN，而且该用户设备所监听的寻呼组为G_IDimodM。对应于上述的两种算法，设定澄清标识需要P个比特传输，一种澄清标识的取值为(ID_i/N/M)mod(2^P)。在寻呼控制信道中还可能传输其他控制信息，例如传送寻呼信道的资源信息以及寻呼信息的传输格式等。In step c) of the present invention, the first processing method for the base station to transmit the paging control channel is that the base station transmits the paging control information of a user equipment in each paging control channel. Corresponding to the independent paging channel mode, the base station directly transmits the value of the paging group as the paging identifier. For example, corresponding to the situation that at most M paging groups will be paged at the same time at each paging control channel transmission time, the paging identifier needs to use

bits to represent, where

Represents an upward rounding operation on x. Corresponding to the shared paging channel mode, when each paging control channel transmits at most M paging groups at the same time, the base station reserves M identities in the identities of the downlink shared control channel as paging identities, and the paging group The number of bits required for the identification is the same as the number of bits used for the identification of the downlink shared control channel. There are two ways to transmit the paging identifier in the paging control channel. One way is that the paging identifier is transmitted separately; the other way is that the paging identifier and the cyclic redundancy check (Cyclic Redundancy Check, hereinafter referred to as CRC) mask (Mask, usually is an exclusive or XOR operation) and then transmitted. In this processing manner, clarifying the identifier serves to reduce the requirement for a user equipment to read paging information. It is clarified that the content of the identification transmission is the information in the user equipment identification number that has nothing to do with the listening time of the paging control channel of the user equipment and the paging group it belongs to. It is assumed that the base station configures N paging control channel transmission times L ₀ , L ₁ , ..., L _N-1 for all user equipments during the interval between two times of monitoring the paging control channel of the user equipment, and in each paging control channel At most M paging groups G ₀ , _{G 1 ,} . In addition, set the value of the user equipment identification number (IMSI, TMSI or P-TMSI, or other user identification information) as ID _i . Then an algorithm for calculating the paging control channel transmission time corresponding to the user equipment and the paging group to which it belongs is: the transmission time of the paging control channel corresponding to the user equipment is _LIDimodN , and the paging control channel monitored by the user equipment The paging group is G _(IDi/N)modM ; another algorithm is: the transmission time of the paging control channel corresponding to the user equipment is L _(IDi/M)modN , and the paging group monitored by the user equipment is G _IDimodM . Corresponding to the above two algorithms, P bit transmission is required to set the clarification flag, and the value of one clarification flag is (ID _i /N/M) mod (2 ^P ). It is also possible to transmit other control information in the paging control channel, such as transmitting the resource information of the paging channel and the transmission format of the paging information.

An example of the first processing manner for the base station to transmit the paging control channel is shown in FIG. 2 . In this example, the way of sharing the paging channel is adopted. The base station transmits the clarification flag 202 in the paging control channel 201, the resource information 203 of the paging channel, and the paging flag 204 and CRC205 (calculated from the clarification flag 202 and the resource information 203 of the paging channel) masked Information 206. The resource information 203 of the paging channel is used to indicate resource block allocation information of the paging information. In this example, since the transmission format is fixed, there is no transmission format for transmitting paging information in the paging control channel.

个比特来表示。与处理方式一相同，对应于共享寻呼信道方式，当每个寻呼控制信道传输时刻会最多同时寻呼M个寻呼组时，基站在下行共享控制信道的标识中预留M个标识作为寻呼标识，寻呼标识需要的比特数与下行共享控制信道所用标识的比特数相同。与处理方式一相同，寻呼标识可以单独传输，也可以与CRC掩模后传输。在本处理方式中，对应于每一个该寻呼控制信道所寻呼的用户设备传输一个澄清标识。具体的澄清标识的计算方法与处理方式一相同。In step c) of the present invention, the second processing method for the base station to transmit the paging control channel is that the base station transmits paging control information of multiple user equipments in the same paging group in each paging control channel. Same as the first processing method, corresponding to the independent paging channel method, the base station directly transmits the value of the paging group as the paging identifier. For example, corresponding to the situation that at most M paging groups will be paged at the same time at each paging control channel transmission time, the paging identifier needs to use

represented by bits. Same as processing method 1, corresponding to the shared paging channel method, when each paging control channel transmits at most M paging groups at the same time, the base station reserves M identities in the identities of the downlink shared control channel as The paging identifier, the number of bits required for the paging identifier is the same as the number of bits used for the identifier for the downlink shared control channel. Same as the first processing method, the paging identifier can be transmitted alone, or can be transmitted after being masked with the CRC. In this processing manner, a clarification flag is transmitted corresponding to each user equipment paged by the paging control channel. The specific calculation method of the clarification mark is the same as the processing method 1.

An example of the second processing manner for the base station to transmit the paging control channel is shown in FIG. 3 . In this example, the way of sharing the paging channel is adopted. The base station transmits the paging control information of the three user equipments in the same paging group in one paging control channel. The base station transmits clarification identities 302, 303 and 304 in the paging control channel 301, respectively corresponding to three user equipments to be paged. The base station also transmits the transport format 305 of the paging channel in the paging control channel 301, and the resource information 306 of the paging channel, as well as the paging identification 307 and CRC 308 (by clarifying identification 302, 303 and 304, the transmission of the paging channel format 305, and paging channel resource information 306) masked information 309. The resource information 306 of the paging channel is used to indicate resource block allocation information of the paging information.

个比特。对应于共享寻呼信道方式，当每个寻呼控制信道传输时刻会最多同时寻呼M个寻呼组时，基站在下行共享控制信道的标识中预留2^M-1个标识作为寻呼标识，其中每个寻呼标识指示寻呼组组合索引。寻呼标识需要的比特数与下行共享控制信道所用的比特数相同来表示。与处理方式一相同，寻呼标识可以单独传输，也可以与CRC掩模后传输。在本处理方式中，对应于每一个该寻呼控制信道所寻呼的用户设备传输一个澄清标识，并且由于每个用户设备属于不同的寻呼组，因此每个澄清标识与每个被寻呼的寻呼组一一对应。一种对应关系是澄清标识传输的顺序与被寻呼的寻呼组的升序相对应：即设定被寻呼的寻呼组为G₀＜G₁′＜...＜G_Q-1′，而传输的澄清标识依次为D₀，D₁，...，D_Q-1，则D₀与G₀′相对应，D₁与G₁′相对应，...，D_Q-1与G_Q-1′相对应。另一种对应关系是澄清标识传输的顺序与被寻呼的寻呼组的降序相对应。具体的澄清标识的计算方法与处理方式一相同。In step c) of the present invention, the third processing method for the base station to transmit the paging control channel is that the base station transmits paging control information of multiple user equipments in each paging control channel, and each user equipment belongs to a different paging group. Corresponding to the independent paging channel mode, the base station transmits multiple paging identifiers, where each paging identifier is a value of a corresponding paging group. For example, corresponding to the situation that at most M paging groups will be paged at the same time at the transmission time of each paging control channel, if the paging control information of the user equipments in Q paging groups is transmitted in the paging control channel, each Paging ID needs to be used bits to represent, and the paging identity requires a total of

bits. Corresponding to the shared paging channel mode, when each paging control channel transmits at most M paging groups at the same time, the base station reserves 2 ^M -1 identities as paging identities in the identities of the downlink shared control channel , where each paging identifier indicates a paging group combination index. The number of bits required for the paging identifier is represented by the same number of bits used for the downlink shared control channel. Same as the first processing method, the paging identifier can be transmitted alone, or can be transmitted after being masked with the CRC. In this processing method, a clarification identifier is transmitted corresponding to each user equipment paged by the paging control channel, and since each user equipment belongs to a different paging group, each clarification identifier is related to each paged The corresponding paging groups are one-to-one. One kind of corresponding relationship is to clarify that the order of identification transmission corresponds to the ascending order of the paging group being paged: that is, the paging group being paged is set as G ₀ <G ₁ ′<...<G _Q-1 ′ , and the clarification identification of the transmission is D ₀ , D ₁ , ..., D _Q-1 in turn, then D ₀ corresponds to G ₀ ′, D ₁ corresponds to G ₁ ′, ..., D _Q-1 Corresponds to G _Q-1 '. Another correspondence is to clarify that the order of identification transmission corresponds to the descending order of the paging groups being paged. The specific calculation method of the clarification mark is the same as the processing method 1.

In step d) of the present invention, the base station sends the paging message on the resource block allocated to the paging channel. Corresponding to the first processing manner for the base station to transmit the paging control channel, the base station sends paging information of a user equipment. Corresponding to the second and third processing manners for the base station to transmit the paging control channel, the base station sends paging information of multiple user equipments.

Operation of user equipment:

a) The user equipment receives configuration information about paging in the broadcast control channel;

b) The user equipment monitors the paging control channel at the transmission time of the paging control channel corresponding to its user equipment identifier, judges according to the paging identifier whether the base station has sent paging information to its paging group, and further judges according to the clarification identifier Whether to read the paging channel;

c) The user equipment receives and decodes the paging channel, and judges whether the base station has sent paging information for it.

In step a) of the present invention, the user equipment receives the broadcast control channel and obtains configuration information of the paging channel by the network. When the network configures the special user identity used for paging through the broadcast control channel, the user equipment obtains the configuration information of the user identity reserved for paging.

In step b) of the present invention, the user equipment calculates its corresponding paging control channel transmission time and the paging group it belongs to according to its user equipment identity. The user equipment monitors the paging control channel at the transmission time of the paging control channel corresponding to its user equipment identifier, and judges according to the paging identifier whether the base station has sent paging information to its paging group. When the user equipment determines that the base station does not send paging information to the paging group it belongs to, the user equipment monitors the paging control channel at the next transmission time of the paging control channel corresponding to its user equipment identifier. When the user equipment determines that the base station has sent paging information to its paging group, the user equipment further judges whether it needs to read the paging channel according to the clarification flag: that is, when the transmitted clarification flag is the same as the clarification flag monitored by the user equipment, The user equipment reads the paging channel, otherwise the user equipment does not read the paging channel.

It is assumed that the base station configures N paging control channel transmission times L ₀ , L ₁ , ..., L _N-1 for all user equipments during the interval between two times of monitoring the paging control channel of the user equipment, and in each paging control channel At most M paging groups G ₀ , _{G 1 ,} . In addition, set the value of the user equipment identification number (IMSI, TMSI or P-TMSI, or other user identification information) as ID _i , and assume that the corresponding paging control channel transmission time of the user equipment is L _IDimodN , and the user The paging group monitored by the device is G _(IDi/N)modM . Setting the clarification flag requires P bits to be transmitted, and the value of the clarification flag is (ID _i /N/M) mod (2 ^P ). The user equipment monitors the paging control channel at the transmission time L _IDimodN of the paging control channel, and judges according to the paging identifier whether the base station has sent paging information to the paging group G _(IDi/N)modM where it is located. When the user equipment determines that the base station does not send paging information to the paging group it belongs to, the user equipment monitors the paging control channel at the next transmission time of the paging control channel _LIDimodN . When the user equipment determines that the base station has sent paging information to its paging group, the user equipment checks whether the clarification identifier with the value of (ID _i /N/M) mod (2 ^P ) is transmitted: that is, if the To clarify the identification, the user equipment reads the paging channel, otherwise the user equipment does not read the paging channel.

In step b) of the present invention, corresponding to the above-mentioned processing method 1 of the base station transmitting the paging control channel, for the independent paging channel method, the user equipment can directly obtain the transmitted paging group according to the paging identifier, so that Determine whether the base station has sent paging information to the paging group it is in; corresponding to the shared paging channel mode, the user equipment obtains the transmitted paging group according to the corresponding relationship between the paging identifier and the paging group, so as to determine whether the base station A paging message has been sent to its paging group. In this processing manner, the user equipment directly reads the clarification flag transmitted by the paging control channel to determine whether to read the paging channel.

In step b) of the present invention, corresponding to the second processing method of the base station transmitting the paging control channel described above, it is the same as the first processing method. For the independent paging channel method, the user equipment can directly obtain the transmission information according to the paging identifier. paging group, so that it can be determined whether the base station has sent paging information to the paging group it is in; corresponding to the shared paging channel mode, the user equipment obtains the transmitted paging group according to the corresponding relationship between the paging identifier and the paging group , so that it can be judged whether the base station has sent paging information to the paging group it belongs to. In this processing manner, the user equipment needs to read all the clarification flags transmitted by the paging control channel and judge whether the detected clarification flags are transmitted, and thus judge whether it needs to read the paging channel.

In step b) of the present invention, corresponding to the above-mentioned third processing method of the base station transmitting the paging control channel, for the independent paging channel method, the user equipment can read all the transmitted paging identifiers, according to whether there are other paging identifiers The paging group it belongs to determines whether the base station has sent paging information to the paging group it belongs to; corresponding to the shared paging channel mode, the user equipment judges the paging group it belongs to according to the paging group combination index indicated by the paging identifier. Whether the paging group is paged. In this processing manner, the user equipment reads the corresponding clarification identifier according to the corresponding relationship between the clarification identifier and the paging group to be paged, and the paging group to which it belongs, and thus judges whether to read the paging channel.

In step b) of the present invention, if the base station transmits other control information in the paging control channel, such as transmitting resource information of the paging channel and the transmission format of the paging information, the user equipment needs to read the control information.

In step c) of the present invention, the user equipment reads the paging channel in the channel resource for transmitting the paging channel, and decodes it according to the transmission format of the paging channel. The user equipment compares its user equipment identity with the user equipment identity transmitted in the paging channel, thereby judging whether the network has sent paging information to it.

FIG. 4 is a device diagram for the base station to send paging control information and paging information. The paging control information generator module (403) of the base station is an embodiment of the present invention. The paging configurator module of the base station generates configuration information for the paging channel (401), multiplexes it with other broadcast control information through the physical channel multiplexer module (405), and transmits it through the transmitting device (406). The scheduler module (402) of the base station calculates its corresponding paging control channel transmission time and the paging group to which it belongs according to the identification of the user equipment that needs paging; the paging control information generator module (403) of the base station The user equipment generates paging identification and clarification identification, and generates other paging-related control information; the control information generated in module 403 is multiplexed on the paging control channel in the physical channel multiplexer module (405), and transmitted through The device (406) fires. On the other hand, the base station multiplexes the paging information (404) through the physical channel multiplexer module (405), and transmits it through the transmitting device (406).

FIG. 5 is a device diagram of user equipment receiving paging information, and the paging control signaling processor (504) of the user equipment is an embodiment of the present invention. The receiving device (501) receives the radio frequency signal sent by the base station, performs radio frequency reception and analog-to-digital conversion, and then inputs it into the physical channel demultiplexer module (502); on the one hand, the broadcast control signaling output by the module 502 is sent to the paging Configuration information processor module (503). In module 503, the user equipment receives the configuration information of the paging channel from the base station. On the other hand, the paging control channel output by module 502 is input to the paging control signaling processor module (504). In module 504, the user equipment judges whether the base station has sent a paging message to its paging group according to the paging identifier. information, and further judge whether to read the paging channel according to the clarification flag. If the base station transmits other control information in the paging control channel, such as transmitting the resource information of the paging channel and the transmission format of the paging information, the user equipment needs to read the control information. Then the user equipment demultiplexes the paging message in the physical channel demultiplexer module (502) according to the paging control signaling, and inputs the paging information processing module (505), and the module 505 checks whether the identification of the user equipment is included in In the paging message, if no, the user equipment continues to periodically detect the paging control signaling, and if yes, the user equipment receives the paging message sent by the base station.

Example

This section presents three embodiments of the invention. In order to avoid making the description of this patent too lengthy, in the following description, detailed descriptions of functions or devices that are well known to the public are omitted.

First embodiment:

In this embodiment, the base station transmits paging control information of one user equipment in each paging control channel, and adopts a shared paging channel manner. Assuming that a maximum of 4 paging groups will be paged simultaneously at each paging control channel transmission moment, the base station reserves 4 identities among the identities of the downlink shared control channel as paging identities. Assuming that the ID length of the downlink shared control channel is 16 bits, the first user ID reserved by the base station for the paging channel is 1111111111111100, and four user IDs are reserved consecutively. Assume further that 8 bit transmission is required to clear the identity.

The operation of the base station is as follows. The base station sends configuration information for paging in a broadcast channel. In this embodiment, the base station sends the reserved first user ID as 111111111111100 and the number of reserved user IDs as 4. The base station determines the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment to be paged. Next, at the corresponding transmission time of the paging control channel, the base station obtains the paging identifier according to the current paging group that needs to be paged. Assuming that the base station is currently paging the first and third paging groups, and one user equipment is paged in each group, the base station needs to transmit two paging control channels, wherein the paging identifier is transmitted in the first paging control channel 111111111111100 is used to indicate that the first paging group is paged, and the paging identifier 1111111111111110 transmitted in the second paging control channel is used to indicate that the third paging group is paged. The base station then transmits the clarification identity according to the identity of the user equipment being paged. In this embodiment, it is assumed that the clarification identifiers transmitted in the first and second paging control channels are 00000111 and 00111100 respectively. The base station also transmits resource information of the paging channel in each paging control channel. Finally, the base station sends the paging channel on the resource block indicated by the paging control channel.

Fig. 6 is an example of a flow chart of a user equipment receiving a paging message in this embodiment. As shown in the figure, firstly, the user equipment receives the broadcast control channel to obtain the paging configuration information of the base station (601). Number 4. The user equipment then periodically listens to the paging control channel (602) at the paging control channel transmission instant corresponding to its user equipment identity. Next, the user equipment determines whether the base station has sent paging information to the paging group it belongs to according to the paging identifier (603). After the user equipment judges that the base station does not send paging information to its paging group, the user equipment turns to step (602) and continues to periodically detect the paging control channel; when the user equipment judges that the base station sends paging information to its paging group After receiving the paging information, the user equipment goes to step (604). In this embodiment, the users of the first paging group detect the paging identifier 111111111111100, and the users of the third paging group detect the paging identifier 1111111111111110, so there are user equipments in the two paging groups being paged. However, the user equipments in the second paging group and the fourth paging group are not paged, so go to step (602) and continue to periodically detect the paging control channel. In step (604), the user equipment further judges whether it needs to read the paging channel according to the clarification flag. That is, when the clarification identifier transmitted is identical to the clarification identifier monitored by the user equipment, the user equipment proceeds to step (605), otherwise the user equipment does not read the paging channel, and proceeds to step (602) to continue periodically detecting the paging control channel . In this embodiment, among the user equipments of the first paging group, the user equipment whose clarification identifier is 00000111 continues to step (605), and other user equipments go to step (602) to continue periodically detecting the paging control channel. Among the user equipments in the third paging group, clarify that the user equipment identified as 00111100 continues to step (605), and other user equipments go to step (602) to continue periodically detecting the paging control channel. In step (605), the user equipment reads the paging channel in the channel resource for transmitting the paging channel, and decodes it according to the transmission format of the paging channel. Then the user equipment analyzes the paging message to judge whether it contains its user identification (606), if not, the user equipment ends the operation of receiving the paging message, and turns to step (602) to continue periodically detecting the paging control channel; if yes, then The user equipment receives the paging information sent by the base station, so the user equipment continues to perform subsequent operations (607), for example, the user equipment initiates a random access procedure.

Fig. 7 is an example of a hardware block diagram of the base station transmitter of the present invention. As shown in the figure, the base station first generates broadcast information such as paging configuration information (701), then performs channel coding and interleaving (702), rate matching (703), and then performs QAM modulation on the signal (704), and then inputs Multiplexer (713); base station obtains paging identification and clarification identification according to the user equipment being paged, thus generates paging control information (705), then base station performs channel coding and interleaving (706) to it, rate matching (707 ), then perform QAM modulation (708) on the signal, and then input the multiplexer (713); the base station performs channel coding and interleaving (710) on the paging data information (709), rate matching (711), and then performs QAM on the signal modulation (712), and input to the multiplexer (713); the multiplexer (713) multiplexes the control information and data together, and then the base station performs OFDM modulation (IFFT) (714) on the multiplexed signal, adding a cyclic prefix ( 715), digital/analog conversion (716), and finally transmit through radio frequency transmitter (717) and antenna (718).

Fig. 8 is an example of a receiving hardware block diagram of a user equipment according to the present invention. The user equipment receives the signal from the base station through the antenna (801) and the radio frequency receiver (802), undergoes analog/digital conversion (803), removes the cyclic prefix (804), performs OFDM demodulation (FFT) (805) and inputs the demultiplexed user equipment (806); the user equipment first processes the broadcast control signal output by the demultiplexer (806), performs QAM demodulation (807), de-rate matching (808), de-interleaving and channel decoding (809), Thereby, the broadcast control information (810) sent by the base station is obtained, and the configuration information of the paging channel by the base station is obtained; then the user equipment sequentially detects the paging channel output from the demultiplexer (806) according to the paging configuration information in the broadcast control signaling Control channel, perform QAM demodulation (811), de-rate matching (812), de-interleaving and channel decoding (813) on it, and then the user equipment judges whether the base station has sent a paging group to its paging group according to the paging identifier Paging information, and further judge whether to read the paging channel according to the clarification flag. The user equipment outputs the signal of the paging channel from the demultiplexer (806) according to the resource block indicated in the paging control channel for transmitting the paging information, and then performs QAM demodulation (815), de-rate matching (816), demultiplexing Interleave and channel decoding (817), finally get the paging information sent by the base station (818), the user equipment detects whether its user identification is in the paging message, if not, end the current process of receiving the paging message, if yes, the user equipment The device receives the paging information currently sent to it by the base station, and the user equipment continues to perform subsequent operations to respond to the paging information from the base station.

Second embodiment:

In this embodiment, the base station transmits paging control information of multiple user equipments in the same paging group in each paging control channel, and adopts a shared paging channel manner. Assuming that a maximum of 4 paging groups will be paged simultaneously at each paging control channel transmission moment, the base station reserves 4 identities among the identities of the downlink shared control channel as paging identities. Assuming that the ID length of the downlink shared control channel is 16 bits, the first user ID reserved by the network for the paging channel is 1111111111111100, and four user IDs are continuously reserved. Assume further that the clarification identification of each user equipment requires 4 bit transmission.

The operation of the base station is as follows. The base station sends configuration information for paging in a broadcast channel. In this embodiment, the base station sends the reserved first user ID as 111111111111100 and the number of reserved user IDs as 4. The base station determines the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment to be paged. Next, at the corresponding transmission time of the paging control channel, the base station obtains the paging identifier according to the current paging group that needs to be paged. Assuming that the base station currently wants to page two user equipments in the third paging group, the base station needs to transmit a paging control channel in which the paging identifier 11111111111111110 is used to indicate that the third paging group is paged. The base station then transmits the clarification identity according to the identity of the user equipment being paged. In this embodiment, the clarification identifiers transmitted in the paging control channel are 0011 and 0110 respectively. The base station also transmits the resource information and transmission format of the paging channel in the paging control channel. Finally, the base station sends the paging channel on the resource block indicated by the paging control channel.

The flow chart of the user equipment receiving the paging message in FIG. 6 is also applicable to this embodiment. As shown in the figure, firstly, the user equipment receives the broadcast control channel to obtain the paging configuration information of the base station (601). Number 4. The user equipment then periodically listens to the paging control channel (602) at the paging control channel transmission instant corresponding to its user equipment identity. Next, the user equipment determines whether the base station has sent paging information to the paging group it belongs to according to the paging identifier (603). After the user equipment judges that the base station does not send paging information to its paging group, the user equipment goes to step (602) to continue periodically detecting the paging control channel; After sending the paging information, the user equipment goes to step (604). In this embodiment, the users of the third paging group detect the paging identifier 1111111111111110, so there is a user equipment in the paging group that is paged. However, the user equipments in other paging groups are not paged, so go to step (602) and continue to periodically detect the paging control channel. In step (604), the user equipment reads all clarification identities transmitted by the paging control channel and judges whether the detected clarification identities are transmitted, and thus judges whether it is necessary to read the paging channel. That is, when the clarification identifier monitored by the user equipment is transmitted, the user equipment goes to step (605), otherwise the user equipment does not read the paging channel, and goes to step (602) to continue periodically detecting the paging control channel. In this embodiment, among the user equipments of the first paging group, the user equipment whose clarification identifier is 0011 or 0110 continues to step (605), and other user equipments go to step (602) to continue periodically detecting the paging control channel . Operations in steps (605, 606 and 607) are the same as those in Embodiment 1.

Third embodiment:

In this embodiment, the base station transmits paging control information of multiple user equipments in each paging control channel, and each user equipment belongs to a different paging group, and uses a shared paging channel manner. Assuming that a maximum of 4 paging groups will be paged simultaneously at each paging control channel transmission moment, the base station reserves 15 identities among the identities of the downlink shared control channel as paging identities. Assuming that the ID length of the downlink shared control channel is 16 bits, the first user ID reserved by the network for the paging channel is 1111111111110001, and 15 user IDs are continuously reserved. Set user identification as 111111111111abcd, wherein a=1 represents that the first paging group is paged, and a=0 represents that the first paging group is not paged; b=1 represents that the second paging group is paged, and b=0 means that the second paging group is not paged, and so on. Assume further that the clarification identification of each user equipment requires 4 bit transmission.

The operation of the base station is as follows. The base station sends configuration information for paging in a broadcast channel. In this embodiment, the base station sends the reserved first user ID as 11111111111110001 and the number of reserved user IDs as 15. The base station determines the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment to be paged. Next, at the corresponding transmission time of the paging control channel, the base station obtains the paging identifier according to the current paging group that needs to be paged. Assuming that the base station currently wants to page the first and third paging groups, and each group pages one user equipment, the base station needs to transmit a paging control channel and transmit a paging identifier 1111111111111010 in it to indicate the first and third paging groups Three paging groups are paged. The base station then transmits the clarification identity according to the identity of the user equipment being paged. It is assumed in this embodiment that the order of clarification identification transmission corresponds to the ascending order of the paging groups being paged. Assume that the clarification identities corresponding to the user equipments paged in the first and third paging groups are 0011 and 0110 respectively, so the base station transmits these two clarification identities in sequence. The base station also transmits the resource information and transmission format of the paging channel in the paging control channel. Finally, the base station sends the paging channel on the resource block indicated by the paging control channel.

The flow chart of the user equipment receiving the paging message in FIG. 6 is also applicable to this embodiment. As shown in the figure, firstly, the user equipment receives the broadcast control channel to obtain the paging configuration information of the base station (601). Number 15. The user equipment then periodically listens to the paging control channel (602) at the paging control channel transmission instant corresponding to its user equipment identity. Next, the user equipment determines whether the base station has sent paging information to the paging group it belongs to according to the paging identifier (603). After the user equipment judges that the base station does not send paging information to its paging group, the user equipment turns to step (602) and continues to periodically detect the paging control channel; when the user equipment judges that the base station sends paging information to its paging group After receiving the paging information, the user equipment goes to step (604). In this embodiment, the users of the first and third paging groups have detected the paging identifier 1111111111111010, so user equipments in these two paging groups are paged. However, the user equipments in other paging groups are not paged, so go to step (602) and continue to periodically detect the paging control channel. In step (604), the user equipment reads the clarification identifier transmitted by the paging control channel and judges whether the detected clarification identifier is transmitted according to the correspondence between the clarification identifier and the paged paging group, and thus judges Whether to read the paging channel. That is, when the clarification identifier monitored by the user equipment is transmitted, the user equipment goes to step (605), otherwise the user equipment does not read the paging channel, and goes to step (602) to continue periodically detecting the paging control channel. In this embodiment, among the user equipments of the first paging group, the user equipment whose clarification identifier is 0011 continues to step (605), and other user equipments go to step (602) to continue periodically detecting the paging control channel. Among the user equipments in the third paging group, clarify that the user equipment identified as 0110 continues to step (605), and other user equipments go to step (602) to continue periodically detecting the paging control channel. Operations in steps (605, 606 and 607) are the same as those in Embodiment 1.

Although the present invention has been illustrated in conjunction with the preferred embodiments thereof, those skilled in the art will understand that various modifications, substitutions and alterations can be made to the present invention without departing from the spirit and scope of the invention. Accordingly, the invention should not be limited by the above-described embodiments, but by the appended claims and their equivalents.

Claims (25)

1. A method for transmitting clarification signs in a paging control channel in a wireless communication system, comprising steps: a) The base station sends configuration information about paging in the broadcast control channel; b) The base station determines the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment to be paged; c) During the transmission time of the paging control channel, the base station sends the paging control information including the paging identifier obtained by the paging group and the clarification identifier in the paging control channel, and the clarification identifier indicates that the user Whether it is necessary to read the identification of paging information; d) The base station sends the paging channel on the resource block indicated by the paging control channel. 2. The method according to claim 1, wherein in step c), the paging control information is transmitted using a downlink shared control channel, wherein the format of the paging control channel is compatible with the shared control channel. 3. The method according to claim 1, characterized in that in step c), the paging control information is transmitted using an independent paging control channel. 4. The method according to claim 1, characterized in that in step c), the paging control channel is also used to transmit resource information of the paging channel. 5. The method according to claim 1, characterized in that in step c), the paging control channel is also used to transmit the transmission format of paging information. 6. According to claim 1, characterized in that said user equipment identifier is an International Mobile Subscriber Identity (IMSI). 7. According to claim 1, characterized in that said user equipment is identified as a Temporary Mobile Subscriber Identity (TMSI). 8. According to claim 1, characterized in that said user equipment is identified as Packet-Temporary Mobile Subscriber Identity (P-TMSI). 9. The method according to claim 1, characterized in that in step c), the clarification identification is obtained through the following steps: setting the base station as all The user equipment configured with N paging control channel transmission times L ₀ , L ₁ , ..., L _N-1 will simultaneously page up to M paging groups G ₀ at each paging control channel transmission time, G ₁ ,..., G _M-1 , the value of the identification number of the paged user equipment is ID _i , the transmission time of the paging control channel corresponding to the paged user equipment is L _IDimodN , and the paged user equipment The monitored paging group is G _(IDi/N)modM , and setting the clarification flag requires P bits to be transmitted, so the value of the clarification flag is (ID _i /N/M)mod(2 ^P ). 10. The method according to claim 1, characterized in that in step c), the clarification identification is obtained through the following steps: setting the base station to set the user equipment for all user equipments in the interval between monitoring the paging control channel twice The user equipment is configured with N paging control channel transmission times L ₀ , L ₁ , ..., L _N-1 , and will page up to M paging groups G ₀ simultaneously at each paging control channel transmission time, G ₁ ,..., G _M-1 , the value of the identification number of the paged user equipment is ID _i , the transmission time of the paging control channel corresponding to the paged user equipment is L _(IDi/M)modN , and The paging group monitored by the user equipment to be paged is G _IDimodM , and setting the clarification ID requires P bits to be transmitted, so the value of the clarification ID is (ID _i /N/M) mod (2 ^P ). 11. The method according to claim 1, wherein in step c), the base station transmits the paging control information of one user equipment in each paging control channel. 12. The method according to claim 1, wherein in step c), the base station transmits paging control information of multiple user equipments in the same paging group in each paging control channel. 13. The method according to claim 12, wherein a clarification flag is transmitted corresponding to each user equipment paged by the paging control channel. 14. The method according to claim 1, characterized in that in step c), the base station transmits paging control information of multiple user equipments in each paging control channel, and each user equipment belongs to a different paging Group. 15. The method according to claim 14, characterized in that a clarification flag is transmitted corresponding to each user equipment paged by the paging control channel. 16. The method according to claim 15, wherein each clarification identifier is in one-to-one correspondence with each paged paging group. 17. The method according to claim 16, characterized in that the order in which the clarification identifications are transmitted corresponds to the ascending order of the paged paging groups. 18. The method according to claim 16, characterized in that the order of clarification identification transmissions corresponds to the descending order of the paging groups being paged. 19. A method for user equipment to receive paging information, comprising the steps of: a) The user equipment receives configuration information about paging in the broadcast control channel; b) The user equipment monitors the paging control channel at the transmission time of the paging control channel corresponding to its user equipment identifier, and judges according to the paging identifier whether the base station has sent paging information to the paging group it is in; If the paging group sent paging information, it is further judged according to the clarification flag whether it is necessary to read the paging channel; c) If it is determined according to the clarification identification that the paging channel needs to be read, the user equipment receives and decodes the paging channel, and judges whether the base station has sent paging information for it. 20. The method according to claim 19, further comprising the step of: the user equipment also acquires paging control information including resource and transmission format for transmitting the paging channel from the paging control channel. 21. The method according to claim 19, characterized in that in step b), when the base station transmits paging control information of a user equipment in each paging control channel, the user equipment directly reads the paging control channel The transmitted clarification flag is used to determine whether to read the paging channel. 22. The method according to claim 19, characterized in that in step b), when the base station transmits the paging control information of multiple user equipments in the same paging group in each paging control channel, the user The device reads all clarification signs transmitted by the paging control channel and judges whether the detected clarification signs are transmitted, and thus judges whether it is necessary to read the paging channel 23. The method according to claim 19, wherein in step b), when the base station transmits paging control information of multiple user equipments in each paging control channel and each user equipment belongs to a different paging When grouping, the user equipment reads the corresponding clarification identifier according to the corresponding relationship between the clarification identifier and the paging group to be paged, and the paging group to which it belongs, and thus judges whether to read the paging channel. 24. A device for transmitting paging information at the base station side, comprising a transmitting part, further comprising: The paging configuration information generator module is used to generate paging configuration information. A scheduler module, configured to calculate the corresponding paging control channel transmission time and the paging group to which it belongs according to the identity of the user equipment that needs to be paged; A paging control information generator module, configured to generate paging control information including the paging identifier and clarification identifier obtained by the paging group; The physical channel multiplexer module is used to multiplex the generated paging control information on the paging control channel, and multiplex the paging information on the paging channel. 25. A device for receiving paging information at the user equipment side, comprising a receiving part, further comprising: The paging configuration information processor module is used to analyze the configuration information of paging in the broadcast control signaling; The paging control signaling processor module is used to determine whether the base station has sent paging information to its paging group according to the paging identifier; if it is determined that the base station has sent paging information to its paging group, then according to the clarification The identification further determines whether it is necessary to read the paging channel; a physical channel demultiplexer module for demultiplexing paging control information and data from received base station signals; The paging information processing module is used for receiving and decoding the paging channel, and judging whether the base station has sent paging information for the user according to the user identification.

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