CN108848546B

CN108848546B - Receiving method of cell system message, user equipment and communication system

Info

Publication number: CN108848546B
Application number: CN201810880636.8A
Authority: CN
Inventors: 刘音; 翁建洪; 石洁珂
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2021-01-29
Anticipated expiration: 2033-12-24
Also published as: CN108848546A; CN103702394A; CN103702394B

Abstract

The invention discloses a receiving method of cell system messages, user equipment and a communication system. The receiving method comprises the following steps: the user equipment receives a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted on a group of wireless frames in a preset cycle period; acquiring scheduling information which is loaded in a master information block and a scheduling block and used for scheduling each system information block in system information, wherein the scheduling information comprises an initial position and a scheduling period of the system information block in a preset cycle period; and receiving the system information block at the wireless frame corresponding to the initial position of the system information block, and entering a dormant state at other wireless frames. The invention can solve the problem that the prior art can not optimize the receiving process of the system message.

Description

Receiving method of cell system message, user equipment and communication system

Technical Field

The invention relates to the technical field of wireless communication, in particular to a method for receiving a cell system message, user equipment and a communication system.

Background

In a 3G (3rd-generation, third generation mobile communication technology) network, after a user equipment is turned on, a network searching process needs to be performed first. The network searching process comprises the following steps: searching a suitable cell, judging whether the cell meets the residence condition according to the system information of the cell, and if so, residing in the cell.

The system messages include MIB (master information block), SB (scheduling block), and other SIB (system information block). The user equipment needs to receive all system messages before it can use the radio resources provided by the cell normally.

Fig. 1 is a state flow diagram of a system message of a receiving cell in the prior art. The process comprises the following steps: step S101: user equipment and broadcasting equipment establish a broadcast channel; step S102: broadcasting system information of a cell on a broadcast channel by a broadcasting device; step S103: user equipment receives a system message on a broadcast channel; step S104: the user equipment judges whether the system message is received completely; step S105: if the reception is finished, the user equipment releases the broadcast channel, and if the reception is not finished, the step S103 is continuously performed. After the system message is received, the stage of judging whether the cell meets the residence condition is entered.

The inventors of the present invention found in long-term development that: when the scheme in the prior art is adopted to receive the system message, the receiving process of the system message cannot be optimized, so the system message is received blindly from beginning to end, the power consumption is larger, and the limited electric quantity of the user equipment is consumed too fast.

Disclosure of Invention

In view of this, the present invention provides a receiving method of a cell system message, a user equipment and a communication system, so as to solve the problem that the prior art cannot optimize the receiving process of the system message.

In order to solve the above problem, a first aspect of the present invention provides a method for receiving a cell system message, including: the method comprises the steps that user equipment receives a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted on a group of wireless frames in a preset cycle period; acquiring scheduling information which is loaded in the master information block and the scheduling block and used for scheduling each system information block in the system information, wherein the scheduling information comprises an initial position and a scheduling period of the system information block in the preset cycle period; and receiving the system information block at the wireless frame corresponding to the initial position of the system information block, and entering a dormant state at other wireless frames.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the scheduling information further includes a number of times of repeated reception of the system information block, and before the step of receiving the system information block in a radio frame corresponding to an initial position of the system information block, the receiving method further includes: determining the repeated position of the system information block according to the initial position and the scheduling period of the system information block; the step of receiving the system information block at the system frame number corresponding to the initial position further includes: and receiving the system information block in a wireless frame corresponding to the repeated position of the system information block according to the repeated receiving times of the system information block.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the system information block has a plurality of segments, the scheduling information further includes a number of the segments of the system information block and a segment ordering, and an initial position of the system information block includes an initial position of each of the segments. The scheduling period of each segment is the scheduling period of the system information block, and the step of receiving the system information block at the radio frame corresponding to the initial position of the system information block includes: judging whether the segmentation ordering is ascending; and if the segmentation sequence is in an ascending order, receiving each segmentation in the wireless frame corresponding to the initial position of each segmentation.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the step of receiving the system information block at the radio frame corresponding to the initial position of the system information block further includes: if the segment sequence is not in an ascending order, determining the receiving times of each segment according to the segment sequence, and determining the repeating position of each segment according to the initial position and the scheduling period of each segment; and receiving each segment in the wireless frame corresponding to the initial position and the repeated position of each segment according to the receiving times of each segment.

With reference to the first aspect or any one of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the receiving method further includes: if the number of the system information blocks which are not received is less than a first threshold value or the continuous receiving time of the system message is greater than a second threshold value, the radio frames corresponding to the initial positions of the system information blocks which are not received receive the system information blocks, and other radio frames enter a dormant state.

In order to solve the above problem, a second aspect of the present invention provides a ue, including a receiving module, an obtaining module, and a control module, where the receiving module is configured to receive a master information block and a scheduling block in a system message broadcasted by a cell, and the system message is transmitted in a predetermined cyclic period over a set of radio frames; the obtaining module is configured to obtain scheduling information, which is used to schedule each system information block in the system message, from the master information block and the scheduling block received by the receiving module, where the scheduling information includes an initial position and a scheduling period of the system information block in the predetermined cyclic period; the control module is used for controlling the receiving module to receive the system information block at the wireless frame corresponding to the initial position of the system information block and controlling the receiving module to enter a dormant state at other wireless frames.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the scheduling information further includes a number of times of repeated reception of the system information block, and the user equipment further includes a determining module, where the determining module is configured to determine a repeated position of the system information block according to an initial position of the system information block and a scheduling period; the control module is further configured to control the receiving module to receive the system information block according to the number of times of repeated reception of the system information block in the radio frame corresponding to the repeated position of the system information block.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the system information block has a plurality of segments, the scheduling information further includes a segment number and a segment ordering of the system information block, and the initial position of the system information block includes an initial position of each segment. The control module comprises a judging unit and a control unit, wherein the judging unit is used for judging whether the sequencing of the segments is ascending; the control unit is used for controlling the receiving module to receive each segment in the wireless frame corresponding to the initial position of each segment when the judging unit judges that the sequencing of the segments is in an ascending order, and controlling the receiving module to enter a dormant state in other wireless frames.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the control module further includes a determining unit, where the determining unit is configured to determine, when the judging unit judges that the sorting of the segments is not in an ascending order, the number of times of receiving each segment according to the sorting of the segments, and determine a repetition position of each segment according to an initial position and a scheduling period of each segment; the control unit is further configured to receive each segment in the radio frame corresponding to the initial position and the repetition position of each segment according to the number of times of receiving each segment determined by the determining unit, and control the receiving module to enter a sleep state in other radio frames.

With reference to the second aspect or any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, the control module is further configured to control the receiving module to receive the unreceived system information block in a radio frame corresponding to an initial position of the unreceived system information block when the number of the unreceived system information blocks is smaller than a first threshold or a duration of receiving the system message is greater than a second threshold, and control the receiving module to enter a sleep state in other radio frames.

To solve the above problem, a third aspect of the present invention provides a communication system including any one of the user equipments described above.

The method for receiving the cell system message, the user equipment and the cell communication system obtain the scheduling information of each system information block through the master information block and the scheduling block in the system message when receiving the system message of the cell, the scheduling information comprises the initial position and the scheduling period of the system information block in the preset cycle period of the system message, the system information block can be received only in the wireless frame corresponding to the initial position, and enters the dormant state at other times.

Drawings

Fig. 1 is a state flow diagram of a system message of a receiving cell in the prior art;

fig. 2 is a flowchart of a first embodiment of a method for receiving a cell system message according to the present invention;

fig. 3 is a flowchart of a second embodiment of a method for receiving a cell system message according to the present invention;

fig. 4 is a flowchart of a third embodiment of a method for receiving a cell system message according to the present invention;

FIG. 5 is a diagram illustrating scheduling of an example application of system messages for a cell;

fig. 6 is a schematic structural diagram of a first embodiment of the user equipment of the present invention;

fig. 7 is a schematic structural diagram of a second embodiment of the user equipment of the present invention;

fig. 8 is a schematic structural diagram of a third embodiment of the user equipment of the present invention;

fig. 9 is a schematic structural diagram of a fourth embodiment of the user equipment of the present invention.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, interfaces, techniques, etc., in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

The following description is made with reference to the accompanying drawings and specific embodiments.

Fig. 2 is a flowchart illustrating a first embodiment of a method for receiving a cell system message according to the present invention. The receiving method of the cell system message comprises the following steps:

s21: the user equipment receives a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted in a set of wireless frames with a preset cycle period.

Wherein the system message comprises a master information block, a scheduling block and a system information block. The master information block is used for carrying scheduling information of the system information block, the scheduling block is used for carrying scheduling information of the rest system information blocks, and the system information blocks contain specific data. The system messages are carried on a set of radio frames and may be broadcast by a Broadcast Channel (BCH). BCH is a unidirectional control channel, which can broadcast common information of cells to the outside, and is composed of FCCH (frequency correction channel), SCH (synchronization channel), and BCCH (broadcast control channel).

When sending the system message, the system message can be loaded on the wireless frame after being coded by ASN.1(Abstract Syntax Notation), so that after receiving the system message from the wireless frame, the system message needs to be subjected to ASN.1 decoding

Radio frames serve as carriers, each radio frame has one SFN (system frame number), and each system message, i.e., the master information block, the scheduling block, and the system information block, may be associated with one or more SFNs, e.g., in some embodiments, one system message may correspond to two SFNs, i.e., one system message is carried by two radio frames. The predetermined cycle period of the system message may be characterized by the SFN of the radio frame, that is, one predetermined cycle period corresponds to the numbering of the SFN from 0 to N, where N is a natural number, usually 1023, and then after the SFN number N, the numbering is continued from 0, that is, the next predetermined cycle period is started.

Optionally, before S21, the ue may also establish a BCH, and after establishing the BCH, the ue receives the radio frame by monitoring the BCH, so as to obtain the system message.

S22: and acquiring scheduling information which is loaded in the master information block and the scheduling block and used for scheduling each system information block in the system information, wherein the scheduling information comprises the initial position and the scheduling period of the system information block in a preset cycle period.

After all the master information block and the scheduling block in the system message are received, the scheduling information of all the system information blocks can be acquired from the master information block and the scheduling block. The initial position of the system information block refers to a position of a radio frame where the system information block first appears in a predetermined cycle period, and the scheduling period refers to a period that the system information block repeatedly appears at other positions with the initial position as a starting point.

S23: and receiving the system information block at the wireless frame corresponding to the initial position of the system information block, and entering a dormant state at other wireless frames.

Generally speaking, if the scheduling information does not indicate the number of times of receiving one system information block, one system information block is received by default once, that is, the system information block is received only at the initial position, and the system information blocks which repeatedly appear after the initial position do not need to be received again.

The user equipment may turn off the BBP (Baseband Processor) and the rf components, which have higher power consumption and are related to receiving the system message, after entering the sleep state.

S24: if the number of the system information blocks which are not received is less than a first threshold value or the continuous receiving time of the system message is greater than a second threshold value, the system information blocks which are not received are received in the wireless frames corresponding to the initial positions of the system information blocks which are not received, and other wireless frames enter a dormant state.

Wherein, since the system message block may have a plurality of types, these different types of system information blocks are represented by SIBx, 1 ≦ x ≦ 18, each type representing different contents. The initial position of each system message block type is different, some very forward and some very backward. Generally, the receiving time for receiving all the system information blocks is 1-2 seconds. However, in some cases, the span of the initial positions of the continuous and few system information blocks is relatively large, and the receiving time is about 5 seconds according to the receiving method of receiving the system information blocks at each position in the prior art. However, in the 5 seconds, most of the system information blocks are already received within the first 1 to 2 seconds, and only a few system information blocks are left to be not received. Therefore, in order to avoid repeatedly receiving the received system information blocks after 1-2 seconds, the first threshold value and the second threshold value are set to avoid blindly waiting for receiving the system information blocks which are not received, and the received system messages can be prevented from being repeatedly received. The number of non-received system information blocks may be derived from scheduling information of the system information blocks and received system information blocks. The duration of the system message may be implemented by a timer, and the duration of the system message may be counted from the reception of the master information block or from the completion of the reception of the master information block and the scheduling block.

Of course, if the continuous reception time is within the range of the second threshold value and all the system information blocks have been completely received, the process flow after the reception is completed may be directly performed.

In further embodiments, the receiving method of the cell system message may include only S21, S22, and S23, not S24,

the method for receiving the cell system message obtains the scheduling information of the system information block through the master information block and the scheduling block, wherein the scheduling information comprises the initial position of the system information block in a preset cycle period, and then when the system information block is received, the scheduling information block is received only in a wireless frame corresponding to the initial position, and other wireless frames enter a dormant state, so that the received system information block can be prevented from being repeatedly received, the master information block and the scheduling block can also be prevented from being repeatedly received, and the method has pertinence compared with the prior art because the system information block is not received blindly any more, thereby solving the problem that the prior art can not optimize the receiving process of the system message, reducing the power consumption, saving the electric quantity of user equipment and not additionally increasing the receiving time of the system message; and further, when the number of the system information blocks which are not received is less than a first threshold or the continuous receiving time of the system message is greater than a second threshold, the system information blocks are received only in the radio frames corresponding to the initial positions of the system information blocks which are not received.

Fig. 3 is a flowchart illustrating a second embodiment of a method for receiving a cell system message according to the present invention. The receiving method of the cell system message comprises the following steps:

s31: the user equipment receives a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted in a set of wireless frames with a preset cycle period.

S32: and acquiring scheduling information which is loaded in the master information block and the scheduling block and used for scheduling each system information block in the system information, wherein the scheduling information comprises the initial position, the scheduling period and the repeated receiving times of the system information block in a preset cycle period.

Wherein, S31 and S32 have the same technical features as S21 and S22 of the first embodiment of the receiving method, and the specific process can refer to the related description of the first embodiment, and belongs to the scope that is easily understood by those skilled in the art, and the present embodiment is different in that the scheduling information further includes the number of times of repeated receiving of the system information block.

In practical applications, since some system information blocks are changed within a predetermined cycle period of the system message, the changed system information blocks need to be received multiple times to ensure that the user equipment receives the latest system information block. Of course, even if the system information block is not changed, the scheduling information may include the number of repeated receptions of the system information block for other purposes. It should be noted that the reception of the initial position is not included in the number of repeated receptions.

S33: and determining the repeated position of the system information block according to the initial position and the scheduling period of the system information block.

In the cycle period of the system message, the system information block may repeat regularly, the repeat position of the system information block is the initial position + the scheduling period × n, n is a natural number greater than 0, and certainly, the value of n cannot make the system frame number of the radio frame corresponding to the repeat position greater than the maximum system frame number of the cycle period.

S34: and receiving the system information block at the radio frame corresponding to the initial position of the system information block, receiving the system information block at the radio frame corresponding to the repeated position of the system information block according to the repeated receiving times of the system information block, and entering a dormant state at other radio frames.

After the system information block is received at the radio frame corresponding to the initial position of the system information block, the system information block is repeatedly received at the repeat position of the system information block, for example, the number of times of repeated reception is 2, and then the corresponding repeat position is the initial position + scheduling period × 1 and the initial position + scheduling period × 2. And the wireless frames except the wireless frames corresponding to the initial position and the repeated position enter a dormant state to reduce power consumption.

In this embodiment, the repetition position of each system information block is obtained through the initial position and the scheduling period in the scheduling information, and then, when configuring the receiving process of the system information block, the system information block is received only at the initial position and the radio frame corresponding to the repetition position according to the repetition receiving times indicated by the scheduling information. When other wireless frames enter a dormant state, the system information block is not received blindly any more, and the method has higher pertinence compared with the prior art, thereby solving the problem that the prior art can not optimize the receiving process of the system information, reducing the power consumption and saving the electric quantity of the user equipment.

Fig. 4 is a flowchart illustrating a third embodiment of a method for receiving a cell system message according to the present invention. The receiving method of the cell system message comprises the following steps:

s41: the user equipment receives a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted in a set of wireless frames with a preset cycle period.

S42: the method comprises the steps of obtaining scheduling information which is loaded in a master information block and a scheduling block and used for scheduling each system information block in system information, wherein the system information block is provided with a plurality of segments, the scheduling information comprises an initial position, a scheduling period, the number of the segments and segment sequencing of the system information block in a preset cycle period, and the initial position of the system information block comprises the initial position of each segment. The scheduling period of each segment is the scheduling period of the system information block.

Wherein, S41 and S42 have the same technical features as S21 and S22 of the first embodiment of the receiving method, and the specific process can refer to the related description of the first embodiment, and belongs to the scope that is easily understood by those skilled in the art, the present embodiment is different in that the system information block has a plurality of segments, the scheduling information further includes the number of segments and the sequence of the segments of the system information block, and the initial position of the system information block includes the initial position of each segment. The scheduling period of each segment is the scheduling period of the system information block.

The system information block may have a plurality of types, and each type may also have a plurality of segments. Specifically, taking the system information block SIB5 as an example, if the number of segments is three, the system information block SIB5 has three segments, which are SIB5(1), SIB5(2), and SIB5(3), respectively. The segment ordering indicates the transmission order of SIB5(1), SIB5(2), SIB5(3) in the system message. Each segment is transmitted separately over one or more radio frames, so each segment has an initial position, but the scheduling period of all segments is the same, i.e. the same as the scheduling period of the system information block.

S43: and judging whether the segmentation sorting is ascending, if so, performing S44, otherwise, performing S45.

The ascending order refers to the transmission order of the SIB5(1), SIB5(2), and SIB5(3) for the three segments of the system information block SIB 5.

S44: and receiving each segment in the radio frame corresponding to the initial position of each segment, and entering a dormant state in other radio frames.

Where, according to the requirements of some communication protocols, if there are fragments of the system information block, the fragments must be received sequentially when the system information block is received, i.e. if the first received fragment is not the first ordered fragment, the fragment will be discarded. If the segments are ordered in ascending order, the segments received by the user equipment are received from the segment ordered first to the segment ordered last. Still taking the example that the three segments of the system information block SIB5 are SIB5(1), SIB5(2) and SIB5(3), the ue receives SIB5(1) for the first time, which meets the requirements of the communication protocol, and then sequentially receives SIB5(2) and SIB5(3), so that each segment of the system information block SIB5 only needs to be received once, and other radio frames after the initial position enter the dormant state.

It will be appreciated that in many cases not every type of system information block will have a fragment, and if the system information block is not fragmented, the initial position of the fragment may be considered the initial position of the system information block,

s45: and determining the receiving times of each segment according to the segment sequence, and determining the repeating position of each segment according to the initial position and the scheduling period of each segment.

Wherein, since the segment ordering is not ascending, the receiving times of each segment is determined according to the actual situation. Assuming that SIB5(2), SIB5(3) and SIB5(1) are sequentially positioned in the SIB5(1), SIB5(2) and SIB5(3) of the system information block SIB5 in the order of position in the scheduling period, when receiving, SIB5(2) and SIB5(3) are discarded at the first time of reception and are correctly received at the second time of reception, so the number of times of reception of SIB5(1) is one, the number of times of reception of SIB5(2) is two, and the number of times of reception of SIB5(3) is two. Assuming three segmented SIBs 5(3), SIB5(2), SIB5(1), SIB5(3) is discarded in the first two receptions at the time of reception, and is correctly received only in the third reception, SIB5(2) is discarded in the first reception, and is correctly received only in the second reception, so the number of receptions of SIB5(1) is one, the number of receptions of SIB5(2) is two, and the number of receptions of SIB5(3) is three. It can be seen that the number of receptions of each segment is at least one according to the position order of each segment.

S46: and receiving each segment in the radio frame corresponding to the initial position and the repeated position of each segment according to the receiving times of each segment, and entering a dormant state in other radio frames.

Wherein the number of times of reception of each segment is a sum of the number of times of reception of the corresponding segment at the initial position and the repetition position of each segment.

In the embodiment, the system information block is of multiple types, each type of system information block may have multiple segments, and when the segment ordering of the multiple segments of the system information block is not ascending, determining the receiving times of each segment according to the segment ordering can ensure that each segment of the system information block can be correctly received and reduce power consumption.

The present embodiment will be described in detail below with reference to table 1 and fig. 5 as specific examples.

Table 1 configuration of cell system messages

Kind of system message	Number of segments	Scheduling period	Initial position	Offset value
					MIB
	1	8	0
					SB	1	16	2
SIB1	1	32	4
					SIB2	1	32	6
SIB3	1	32	10
					SIB5	3	32	12	2，6
SIB7	1	64	86
					SIB11	2	280	54	4

In the system message, the master information block and the scheduling block have no segments, and the number of segments is 1. For the system information block, only SIB5 has a segmentation, with a number of segments of 3, and the rest have no segmentation, with a number of segments of 1. The position calculation method of each block is as follows: scheduling period × k + home position + offset value, k being a natural number (including zero). For blocks without segmentation, the offset value defaults to 0.

Fig. 5 corresponds to table 1. The system messages are transmitted over a specific set of radio frames, and the SFN of the radio frame carrying the system message satisfies the corresponding scheduling rules. Each block is carried by two radio frames. All segmented blocks of the system message are broadcast during a predetermined cycle of the system message. The scheduling period and initial position of each system information block can be known from table 1.

As can be seen from fig. 5, for SIB1, SIB2, SIB3, and SIB7, the corresponding system information blocks are received only once at the radio frames corresponding to their initial positions, i.e., the radio frames with system frame numbers 4, 6, 10, and 86. For SIB5 and SIB11, since their segmentation ordering is in ascending order, the corresponding segments are received only once at the radio frame corresponding to the initial position of each segment, i.e., the radio frames with system frame numbers 12, 14, 54, and 58. Other radio frames are dormant.

Further, considering that all data blocks except SIB7, SIB11(1), and SIB11(2) have been received in the first 22 radio frames, all data blocks except SIB7 and SIB11(2) have been received in the first 56 radio frames, the remaining SIB7 starts to be received only in the 86 th radio frame, and SIB11(2) starts to be received only in the 58 th radio frame. If the system information block is received at each position, repeated receiving is inevitably caused, and power consumption is wasted. Therefore, it may be arranged that at the 22 nd radio frame, the reception procedure of the unreceived system information blocks is reconfigured, i.e., SIB11(1) is received only at the 54 th radio frame, SIB11(2) is received only at the 58 th radio frame, and SIB7 is received only at the 86 th radio frame, and the rest of the radio frames enter the sleep state.

Fig. 6 is a schematic structural diagram of a first embodiment of the ue of the present invention. The user equipment comprises a receiving module 61, an obtaining module 62 and a control module 63, but may further comprise other modules.

The receiving module 61 is configured to receive a master information block and a scheduling block in a system message broadcasted by a cell, where the system message is transmitted in a predetermined cycle period over a group of radio frames. Wherein the system message comprises a master information block, a scheduling block and a system information block. The master information block is used for carrying scheduling information of the system information block, the scheduling block is used for carrying scheduling information of the rest system information blocks, and the system information blocks contain specific data. The system messages are carried over a set of radio frames and may be broadcast by the BCH. When sending, the system message can be loaded on the radio frame after being coded by the asn.1, and then after receiving the system message from the radio frame, the system message needs to be decoded by the asn.1. Radio frames serve as carriers, each radio frame has one SFN, and each system message, i.e., master information block, scheduling block, and system information block, may be associated with one or more SFNs, e.g., in some embodiments, one system message may correspond to two SFNs, i.e., one system message is carried by two radio frames. The predetermined cycle period of the system message may be characterized by the SFN of the radio frame, that is, one predetermined cycle period corresponds to the numbering of the SFN from 0 to N, where N is a natural number, usually 1023, and then after the SFN number N, the numbering is continued from 0, that is, the next predetermined cycle period is started.

Optionally, the receiving module 61 needs to establish a BCH first, and after establishing the BCH, the receiving module 61 receives the radio frame by monitoring the BCH, so as to obtain the system message.

The obtaining module 62 is configured to obtain scheduling information, which is carried in the master information block and the scheduling block received by the receiving module 61 and used for scheduling each system information block in the system message, where the scheduling information includes an initial position and a scheduling period of the system information block in a predetermined cycle period. After all the master information block and the scheduling block in the system message are received, the obtaining module 62 may obtain the scheduling information of all the system information blocks from the master information block and the scheduling block. The initial position of the system information block refers to a position of a radio frame where the system information block first appears in a predetermined cycle period, and the scheduling period refers to a period that the system information block repeatedly appears at other positions with the initial position as a starting point.

The control module 63 is configured to control the receiving module 61 to receive the system information block at the radio frame corresponding to the initial position of the system information block, and control the receiving module 61 to enter the sleep state at other radio frames. Since all the master information block and the scheduling block are received, the receiving module 61 only needs to receive the system information block, and generally, if the scheduling information does not indicate the receiving times of one system information block, one system information block is received by default once, that is, the system information block is received only at the initial position, and the system information block appearing repeatedly after the initial position does not need to be received again. The receiving module 61 may be a BBP or a radio frequency element, in particular. The receiving module 61 entering the sleep state may be a higher power consumption component related to receiving the system message, such as turning off the BBP and the rf component.

Optionally, the control module 63 is further configured to control the receiving module 61 to receive the unreceived system information block in the radio frame corresponding to the initial position of the unreceived system information block when the number of the unreceived system information blocks is smaller than a first threshold or the duration of the system message is greater than a second threshold, and control the receiving module 61 to enter the sleep state in other radio frames. Wherein, since the system message block may have a plurality of types, these different types of system information blocks are represented by SIBx, 1 ≦ x ≦ 18, each type representing different contents. The initial position of each system message block type is different, some very forward and some very backward. Generally, the receiving time for receiving all the system information blocks is 1-2 seconds. However, in some cases, the span of the initial positions of the continuous and few system information blocks is relatively large, and the receiving time is about 5 seconds according to the receiving method of receiving the system information blocks at each position in the prior art. However, in the 5 seconds, most of the system information blocks are already received within the first 1 to 2 seconds, and only a few system information blocks are left to be not received. Therefore, in order to avoid repeatedly receiving the received system information blocks after 1-2 seconds, the first threshold value and the second threshold value are set to avoid blindly waiting for receiving the system information blocks which are not received, and the received system messages can be prevented from being repeatedly received. The control module 63 may set a counter to derive the number of non-received system information blocks from the scheduling information of the system information blocks and the received system information blocks. The control module 63 may set a timer function to calculate the duration of receipt of the system message, and the duration of receipt of the system message may be timed from the receipt of the master information block or from the completion of the receipt of the master information block and the scheduling block. Of course, if the continuous receiving time is within the range of the second threshold, all the system information blocks have been received, the control module 63 may directly perform the processing procedure after the reception is completed.

The user equipment of the embodiment of the invention obtains the scheduling information of the system information block through the master information block and the scheduling block, the scheduling information comprises the initial position of the system information block in a preset cycle period, then when the system information block is received, the wireless frame corresponding to the initial position is only received, other wireless frames enter a dormant state, and the reception of the system information block is not carried out blindly any more, so that the invention has pertinence compared with the prior art, thereby solving the problem that the prior art can not optimize the receiving process of the system information, reducing the power consumption, saving the electric quantity of the user equipment and not additionally increasing the receiving time of the system information; and furthermore, when the number of the system information blocks which are not received is smaller than a first threshold value or the continuous receiving time of the system information is larger than a second threshold value, the time of the sleep state is further increased, compared with the prior art that the system information blocks are in the working state in the whole receiving process, the sleep time can be further increased, and the power consumption is greatly reduced.

Fig. 7 is a schematic structural diagram of a second embodiment of the ue of the present invention. The user equipment comprises a receiving module 71, an obtaining module 72, a determining module 73 and a control module 74.

The receiving module 71 is configured to receive a master information block and a scheduling block in a system message broadcasted by a cell, where the system message is transmitted in a predetermined cycle period over a group of radio frames.

The obtaining module 72 is configured to obtain scheduling information, which is used for scheduling each system information block in the system message and is carried in the master information block and the scheduling block received by the receiving module 71, where the scheduling information includes an initial position, a scheduling period, and a number of repeated receptions of the system information block in the predetermined cycle period. The receiving module 71 and the obtaining module 72 have the same technical features as the receiving module 61 and the obtaining module 62 of the first embodiment of the user equipment, and the specific process may refer to the related descriptions of the receiving module 61 and the obtaining module 62, and belongs to the scope that is easily understood by those skilled in the art.

The determining module 73 is configured to determine a repetition position of the system information block according to the initial position and the scheduling period of the system information block. In the cycle period of the system message, the system information block may repeat regularly, the repeat position of the system information block is the initial position + the scheduling period × n, n is a natural number greater than 0, and certainly, the value of n cannot make the system frame number of the radio frame corresponding to the repeat position greater than the maximum system frame number of the cycle period.

The control module 74 is configured to receive the system information block at the radio frame corresponding to the initial position of the system information block, receive the system information block at the radio frame corresponding to the repeated position of the system information block according to the repeated receiving times of the system information block, and enter a sleep state at other radio frames.

Fig. 8 is a schematic structural diagram of a third embodiment of the ue of the present invention. The user equipment includes a receiving module 81, an obtaining module 82 and a control module 83, and the control module 83 includes a judging unit 831, a determining unit 832 and a control unit 833.

The receiving module 81 is configured to receive a master information block and a scheduling block in a system message broadcasted by a cell, where the system message is transmitted in a predetermined cycle period over a group of radio frames.

The obtaining module 82 is configured to obtain scheduling information, which is received by the receiving module 81 and is carried in the master information block and the scheduling block, for scheduling each system information block in the system message, where the system information block has a plurality of segments, the scheduling information includes an initial position of the system information block in a predetermined cycle period, a scheduling period, a number of the segments, and a segment ordering, and the initial position of the system information block includes an initial position of each segment. The scheduling period of each segment is the scheduling period of the system information block. The receiving module 81 and the obtaining module 82 have the same technical features as the receiving module 61 and the obtaining module 62 of the first embodiment of the user equipment, and the specific process may refer to the related descriptions of the receiving module 61 and the obtaining module 62, and belongs to the scope that is easily understood by those skilled in the art. The scheduling period of each segment is the scheduling period of the system information block. The system information block may have a plurality of types, and each type may also have a plurality of segments. Specifically, taking the system information block SIB5 as an example, if the number of segments is three, the system information block SIB5 has three segments, which are SIB5(1), SIB5(2), and SIB5(3), respectively. The segment ordering indicates the transmission order of SIB5(1), SIB5(2), SIB5(3) in the system message. Each segment is transmitted separately over one or more radio frames, so each segment has an initial position, but the scheduling period of all segments is the same, i.e. the same as the scheduling period of the system information block.

The control module 83 is configured to control the receiving module 81 to receive the system information block at the wireless frame corresponding to the initial position of the system information block, and control the receiving module 81 to enter the sleep state at other wireless frames.

Specifically, the determination unit 831 is configured to determine whether the segment ordering is ascending. The ascending order refers to the transmission order of the SIB5(1), SIB5(2), and SIB5(3) for the three segments of the system information block SIB 5.

The determining unit 832 is configured to determine the receiving times of each segment according to the segment ordering and determine the repeating position of each segment according to the initial position and the scheduling period of each segment when the judging unit 831 judges that the segment ordering is not in the ascending order. Wherein, since the segment ordering is not ascending, the receiving times of each segment is determined according to the actual situation. Assuming that SIB5(2), SIB5(3) and SIB5(1) are sequentially positioned in the SIB5(1), SIB5(2) and SIB5(3) of the system information block SIB5 in the order of position in the scheduling period, when receiving, SIB5(2) and SIB5(3) are discarded at the first time of reception and are correctly received at the second time of reception, so the number of times of reception of SIB5(1) is one, the number of times of reception of SIB5(2) is two, and the number of times of reception of SIB5(3) is two. Assuming three segmented SIBs 5(3), SIB5(2), SIB5(1), SIB5(3) is discarded in the first two receptions at the time of reception, and is correctly received only in the third reception, SIB5(2) is discarded in the first reception, and is correctly received only in the second reception, so the number of receptions of SIB5(1) is one, the number of receptions of SIB5(2) is two, and the number of receptions of SIB5(3) is three. It can be seen that the number of receptions of each segment is at least one according to the position order of each segment.

The control unit 833 is further configured to receive each segment at the radio frame control receiving module 81 corresponding to the initial position of each segment when the determining unit 831 determines that the sequence of the segments is ascending, and enter a sleep state at other radio frame control receiving modules 81; or, since each segment is received at the radio frame corresponding to the initial position and the repetition position of each segment according to the number of times of reception of each segment determined by the determining unit 832, the receiving module 81 is controlled to enter the sleep state at other radio frames.

Where, according to the requirements of some communication protocols, if there are fragments of the system information block, the fragments must be received sequentially when the system information block is received, i.e. if the first received fragment is not the first ordered fragment, the fragment will be discarded. If the segments are ordered in ascending order, the segments received by the user equipment are received from the segment ordered first to the segment ordered last. Still taking the example that the three segments of the system information block SIB5 are SIB5(1), SIB5(2) and SIB5(3), the ue receives SIB5(1) for the first time, which meets the requirements of the communication protocol, and then sequentially receives SIB5(2) and SIB5(3), so that each segment of the system information block SIB5 only needs to be received once, and other radio frames after the initial position enter the dormant state. It will be appreciated that in many cases not every type of system information block has a fragment, and if the system information block has no fragment, the initial position of the fragment may be considered the initial position of the system information block.

Embodiments of the present invention further provide a communication system, where the communication system includes the user equipment of any of the above embodiments, and other structures of the communication system refer to the prior art, which is not described in detail herein.

Fig. 9 is a schematic structural diagram of a fourth embodiment of the ue of the present invention. The user equipment includes a processor (processor) 91, a memory (memory)92, a bus 93, and a communication interface (communication interface) 94. Wherein the processor 91, the memory 92 and the communication interface 94 are interconnected via a bus 93. The communication interface 94 is used for establishing communication connection with other devices.

The bus 93 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.

The memory 92 is used for storing programs. In particular, the program may include program code comprising computer operating instructions. The memory 92 may comprise a high-speed random-access memory (RAM) memory, and may further comprise a non-volatile memory (NVM), such as at least one disk memory.

The processor 91 may be a Central Processing Unit (CPU).

The processor 91 executes the program stored in the memory 92 to implement the receiving method according to the embodiment of the present invention, and includes:

receiving a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted in a preset cycle period on a group of wireless frames.

And acquiring scheduling information which is loaded in the master information block and the scheduling block and used for scheduling each system information block in the system information, wherein the scheduling information comprises the initial position and the scheduling period of the system information block in a preset cycle period.

And receiving the system information block at the wireless frame corresponding to the initial position of the system information block, and entering a dormant state at other wireless frames.

Optionally, the scheduling information further includes a number of repeated receptions of the system information block. Before the step of receiving the system information block at the radio frame corresponding to the initial position of the system information block, the method further comprises the following steps: determining the repeated position of the system information block according to the initial position and the scheduling period of the system information block; the step of receiving the system information block at the system frame number corresponding to the initial position further comprises: and receiving the system information block at the radio frame corresponding to the repeated position of the system information block according to the repeated receiving times of the system information block, and entering a dormant state at other radio frames.

Optionally, the system information block has a plurality of segments, the scheduling information further includes a segment number and a segment order of the system information block, and the initial position of the system information block includes an initial position of each segment. The scheduling period of each segment is the scheduling period of the system information block. The step of receiving the system information block at the radio frame corresponding to the initial position of the system information block includes: judging whether the segmentation ordering is ascending; if the segmentation sequence is in an ascending order, receiving each segmentation in the radio frame corresponding to the initial position of each segmentation; if the sequencing of the segments is not ascending, determining the receiving times of each segment according to the sequencing of the segments, and determining the repeating position of each segment according to the initial position and the scheduling period of each segment; and receiving each segment in the wireless frame corresponding to the initial position and the repetition position of each segment according to the receiving times of each segment.

Optionally, if the number of the unreceived system information blocks is less than a first threshold or the duration of the system message is greater than a second threshold, the unreceived system information blocks are received in the radio frames corresponding to the initial positions of the unreceived system information blocks, and the radio frames enter a sleep state.

For a specific implementation process of the processor 91, reference may be made to the receiving method and the user equipment in the foregoing embodiments, which are not described herein again.

In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a management server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method for receiving a cell system message, comprising:

receiving a master information block and a scheduling block in a system message broadcasted by a cell, the system message being transmitted at a predetermined cyclic period over a set of radio frames and being broadcasted by a broadcast channel;

acquiring scheduling information which is loaded in the master information block and the scheduling block and used for scheduling each system information block in the system information, wherein the scheduling information comprises an initial position and a scheduling period of the system information block in the preset cycle period, the system information block is provided with a plurality of segments, the scheduling information further comprises the number of the segments and the sequencing of the segments of the system information block, the initial position of the system information block comprises the initial position of each segment, and the scheduling period of each segment is the scheduling period of the system information block;

receiving the system information block at a wireless frame corresponding to the initial position of the system information block, and entering a dormant state at other wireless frames; wherein

The step of receiving the system information block at the radio frame corresponding to the initial position of the system information block includes:

judging whether the segmentation ordering is ascending;

if the sequence of the segments is ascending, receiving each segment in the wireless frame corresponding to the initial position of each segment; and

if the segment sequence is not in an ascending order, determining the receiving times of each segment according to the segment sequence, and determining the repeating position of each segment according to the initial position and the scheduling period of each segment;

and receiving each segment in the wireless frame corresponding to the initial position and the repeated position of each segment according to the receiving times of each segment.

2. The method of claim 1, wherein the scheduling information further includes a number of repeated receptions of the system information block, and before the step of receiving the system information block in a radio frame corresponding to an initial position of the system information block, the method further includes:

determining the repeated position of the system information block according to the initial position and the scheduling period of the system information block;

the step of receiving the system information block at the radio frame corresponding to the initial position of the system information block further includes:

and receiving the system information block in a wireless frame corresponding to the repeated position of the system information block according to the repeated receiving times of the system information block.

3. The method of receiving a cell system message according to claim 1 or 2, characterized in that the method of receiving further comprises:

if the number of the system information blocks which are not received is less than a first threshold value or the continuous receiving time of the system message is greater than a second threshold value, the radio frames corresponding to the initial positions of the system information blocks which are not received receive the system information blocks, and other radio frames enter a dormant state.

4. The method of receiving a cell system message according to claim 1 or 2, characterized in that the system information block contains data.

5. The method of receiving cell system messages according to claim 1 or 2, wherein the baseband processor and the radio frequency element are turned off after the other radio frames enter the sleep state.

6. The device for receiving the cell system message is characterized by comprising a receiving module, an acquisition module and a control module, wherein,

the receiving module is used for receiving a master information block and a scheduling block in a system message broadcasted by a cell, wherein the system message is transmitted in a set of wireless frames at a preset cycle period and is broadcasted by a broadcast channel;

the obtaining module is configured to obtain scheduling information, which is used to schedule each system information block in the system message, and is carried in the master information block and the scheduling block received by the receiving module, where the scheduling information includes an initial position and a scheduling period of the system information block in the predetermined cycle period, the system information block has a plurality of segments, the scheduling information further includes a number of the segments of the system information block and a sequence of the segments, the initial position of the system information block includes an initial position of each segment, and a scheduling period of each segment is a scheduling period of the system information block;

the control module is used for controlling the receiving module to receive the system information block at the wireless frame corresponding to the initial position of the system information block and controlling the receiving module to enter a dormant state at other wireless frames;

the control module comprises a judging unit, a control unit and a determining unit; wherein

The judging unit is used for judging whether the segmentation sequencing is ascending;

the control unit is used for controlling the receiving module to receive each segment in the wireless frame corresponding to the initial position of each segment when the judging unit judges that the sequencing of the segments is in an ascending order, and controlling the receiving module to enter a dormant state in other wireless frames;

the determining unit is configured to determine, when the determining unit determines that the segment ordering is not in an ascending order, the number of times of receiving of each segment according to the segment ordering, and determine a repetition position of each segment according to an initial position and a scheduling period of each segment;

the control unit is further configured to receive each segment in the radio frame corresponding to the initial position and the repetition position of each segment according to the number of times of receiving each segment determined by the determining unit, and control the receiving module to enter a sleep state in other radio frames.

7. The apparatus of claim 6, wherein the scheduling information further comprises a number of repeated receptions of the system information block, and wherein the apparatus further comprises a determining module configured to determine a repeated position of the system information block according to an initial position of the system information block and a scheduling period;

the control module is further configured to control the receiving module to receive the system information block according to the number of times of repeated reception of the system information block in the radio frame corresponding to the repeated position of the system information block.

8. The apparatus of claim 6 or 7, wherein the control module is further configured to control the receiving module to receive the unreceived system information block in a radio frame corresponding to an initial location of the unreceived system information block and to control the receiving module to enter a sleep state in other radio frames when the number of unreceived system information blocks is smaller than a first threshold or a duration of receiving the system message is greater than a second threshold.

9. The apparatus of claim 6 or 7, wherein the system information block contains data.

10. The apparatus of claim 6 or 7, wherein the controlling the receiving module to enter the sleep state comprises: the baseband processor and radio frequency components are turned off.

11. An apparatus for receiving a cell system message, comprising a processor and a communication interface;

the communication interface is used for establishing communication connection with other equipment;

the processor is configured to perform the following operations:

judging whether the segmentation ordering is ascending;

12. The apparatus of claim 11, wherein the scheduling information further includes a number of repeated receptions of the system information block, and wherein before the step of receiving the system information block in a radio frame corresponding to an initial position of the system information block, the processor is further configured to: determining the repeated position of the system information block according to the initial position and the scheduling period of the system information block;

13. The apparatus of claim 11 or 12, wherein the processor is further configured to:

14. The apparatus according to claim 11 or 12, wherein the system information block contains data.

15. The apparatus of claim 11 or 12, wherein the processor entering the sleep state comprises turning off the processor; the processor is also configured to turn off the radio frequency element.

16. The apparatus of claim 11 or 12, further comprising a memory for storing a program;

the processor performs the operations by executing the program in memory.

17. A computer-readable storage medium storing instructions for execution by a computer device or processor to cause the computer device or processor to perform the method of receiving a cell system message according to claim 1 or 2.