CN103067864B - A kind of changing method for group's monitoring users and terminal - Google Patents
A kind of changing method for group's monitoring users and terminal Download PDFInfo
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- CN103067864B CN103067864B CN201110316465.4A CN201110316465A CN103067864B CN 103067864 B CN103067864 B CN 103067864B CN 201110316465 A CN201110316465 A CN 201110316465A CN 103067864 B CN103067864 B CN 103067864B
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Abstract
The invention provides a kind of for group's monitoring users changing method and terminal, the group's monitoring users being in Idle state obtains measuring control information and wireless resource configuration from system broadcast message; The group's monitoring users being in Idle state is measured according to obtained measuring control information, when needs reporting measurement reports, initiate wireless heterogeneous networks (RRC) connection establishment process, set up RRC according to obtained wireless resource configuration and base station to be connected, go to connected state by Idle state; Be in group's monitoring users of connected state when needs switch, adopt the switching flow of connected state to switch to Target cell.Application the present invention can support group user effectively and switch fast.
Description
Technical field
The present invention relates to trunking communicating technology, particularly a kind of changing method for group's monitoring users and terminal.
Background technology
Along with the development of wireless communication technology, trunking communicating technology constantly advances from the analogue system of the sixties in last century, and narrow-band digital group system has appearred in the nineties in last century.Meanwhile, along with industry user increases gradually to the demand of WiMAX, from before only need speech talkback till now not only need voice call clearly, and need transfer of data at a high speed.In order to meet the demand of industry user, traditional group system will to broadband continuous evolution.TD-LTE, as the representative of broadband digital communication system, possesses bandwidth utilization efficiency high, service bearer efficiency high, so become the new developing direction of Digital Clustering based on the digital clustering communication system of TD-LTE.
In TD-LTE wireless private network group system group service, typical user is divided into group speaker user and group's monitoring users, speaker user has special RRC (wireless heterogeneous networks) signal deployment, and group's monitoring users does not have user class special RRC to configure, the group's monitoring users in a group uses identical configuration.As mobile communication system, the movement of user is inevitable, and this just brings the problem that user switches between different districts.In general, the multiple users in the user Dou Shiyige group of trunking communication, in the process switched, if speaker user's access delay is comparatively large, will affect the reception of other monitoring users, reduce the operating efficiency of private network user; And monitoring users access delay is comparatively large, breath of leakage being collected mail, if these information are important, brings considerable influence by giving the work of user.
In TD-LTE group system, group's monitoring users does not have RRC to connect, be in free time (IDLE) state, if what specify by 3GPP when switching adopts cell re-selection mechanism to the terminal being in idle condition, so, will there is service outage duration long in reuse adoption process, user experiences poor problem, therefore, the uninterrupted movement of group's monitoring users should be supported by the mode of cell merge.
Visible, how the wireless communication system that TD-LTE wireless private network uses as a kind of multi-user, support that switching effectively and fast of group user is the key technical problem that must solve.
Summary of the invention
The invention provides a kind of changing method for group's monitoring users and terminal, to support group user effectively and to switch fast.
A kind of changing method provided by the invention, for group's monitoring users, comprising:
The group's monitoring users being in Idle state obtains measuring control information and wireless resource configuration from system broadcast message;
The group's monitoring users being in Idle state is measured according to obtained measuring control information, when needs reporting measurement reports, initiate wireless heterogeneous networks (RRC) connection establishment process, set up RRC according to obtained wireless resource configuration and base station to be connected, go to connected state by Idle state;
Be in group's monitoring users of connected state when needs switch, adopt the switching flow of connected state to switch to Target cell.
A kind of terminal provided by the invention, for group's monitoring users, comprising:
Data obtaining module, when described group monitoring users is in Idle state, for obtaining measuring control information and wireless resource configuration from system broadcast message;
Measurement module, for measuring according to the measuring control information of described acquisition, and when needs reporting measurement reports, initiate wireless heterogeneous networks (RRC) connection establishment process, set up RRC according to the wireless resource configuration of described acquisition with base station to be connected, the state of described group monitoring users is gone to connected state by Idle state;
Handover module, when described group monitoring users is in connected state and needs to switch, switches to Target cell for adopting the switching flow of connected state.
As seen from the above technical solution, changing method for group's monitoring users provided by the invention and system, group's monitoring users obtains measuring control information and wireless resource configuration by system broadcast message, avoid idle message redundancy on the one hand, improve the order of accuarcy that group's monitoring users receives above-mentioned information, on the other hand, the monitoring users being in idle condition can be measured according to the measuring control information got, and set up RRC when needs reporting measurement reports with base station and be connected, so, both avoided and RRC connection had been set up to each group monitoring users, order needs the monitoring users switched that the flow process of connected state can be adopted to switch again, avoid Idle state user in prior art use cell re-selection mechanism to carry out radio transmission performance that mobile management causes declines, handover delay is long, the frequent drawback initiated group and add flow process after switching, ensure that user experiences.
And, in the present invention, group's monitoring users obtains the physical resource configuration information of the paging resource allocation information of Target cell group, wireless resource configuration and semi-persistent scheduling by RRC signaling, thus enable group's monitoring users monitoring seek channel as soon as possible, timely paging receiving message, and configure the data channel of group as early as possible, receive group data, thus reduce handover delay, improve handover success rate, and improve the reliability of system.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the better changing method of the present invention one;
Fig. 2 is the composition structural representation of the better terminal of the present invention one.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in further detail.
Only have a user to be in speaker's state in a group simultaneously, but need a support tens even hundreds of monitoring users, if adopt conventional switching mode to support the movement of group's monitoring users, then need to set up RRC for each monitoring users to connect, and be the control information of each monitoring users allocating and measuring and wireless resource configuration by RRC signaling, and the above-mentioned information major part of all monitoring users of same group is identical, get off to have very large information redundancy if all carried, it is the significant wastage to idle wireless resource and network equipment disposal ability, power system capacity greater loss can be caused.For this reason, the present invention proposes the mode adopting broadcast, by system broadcast message by measuring control information and wireless resource configuration notice group monitoring users, to avoid the redundancy of idle message.Simultaneously, because group's monitoring users is likely in each position in community, such as cell edge, adopts the mode of broadcast to notify the configuration information of group's monitoring users measuring control information and Radio Resource, is conducive to improving the order of accuarcy that monitoring users receives above-mentioned information.
Connect for avoiding unnecessary RRC, and the mode being reached through cell merge supports the object of the uninterrupted movement of group's monitoring users, the present invention proposes: the monitoring users being in idle condition is measured according to the measuring control information got, and when needs reporting measurement reports, initiate RRC connection establishment process, set up RRC to connect, so, both avoided and RRC connection had been set up to each group monitoring users, order needs the monitoring users switched that the flow process of connected state can be adopted to switch again, avoid Idle state user in prior art use cell re-selection mechanism to carry out radio transmission performance that mobile management causes declines, handover delay is long, the frequent drawback initiated group and add flow process after switching, ensure that user experiences.
In addition, specify according to existing 3GPP, after group's monitoring users is switched to new community, need to wait for that layer 2 scheduler uses PDCCH (Physical Downlink Control Channel) Resources allocation.On the one hand, false retrieval or undetected problem may be there is in terminal in the process receiving PDCCH, on the other hand, due to terminal for authorization message without feedback, even if monitoring users does not receive PDCCH and authorizes, also cannot informing network side in time, will monitoring users be caused cannot to receive group data or send data within a period of time in the resource of mistake like this, increase error rate and the time delay of transfer of data.
The main Industry-oriented user of group system, and industry user has harsher requirement, once need group's monitoring users to receive the paging of dispatching desk as early as possible after connecting to receiving the time delay of data due to the requirement of job specification.According to the above-mentioned scheduling mode specified in existing 3GPP agreement, obtain paging resource after switching by system message, the time of interrupting causing paging is longer.For this reason, the present invention proposes: in handoff procedure, by RRC information, the physical resource configuration information of the paging resource allocation information of Target cell group, wireless resource configuration and semi-persistent scheduling is handed down to the group's monitoring users being switched to Target cell, thus enable group's monitoring users monitoring seek channel as soon as possible, timely paging receiving message, and configure the data channel of group as early as possible, receive group data, thus reduction handover delay, improve handover success rate, improve the reliability of system.
Based on above-mentioned analysis, the present invention proposes a kind of changing method for group's monitoring users and terminal, is described in detail referring to accompanying drawing.
Fig. 1 is the schematic flow sheet of the better changing method of the present invention one.See Fig. 1, the method comprises:
Step 101: the group's monitoring users being in Idle state obtains measuring control information and wireless resource configuration from system broadcast message.
Step 102: the group's monitoring users being in Idle state is measured according to obtained measuring control information, when needs reporting measurement reports, initiate RRC connection establishment process, set up RRC according to obtained wireless resource configuration and base station and be connected, go to connected state by Idle state.
Step 103: be in group's monitoring users of connected state when needs switch, adopts the switching flow of connected state to switch to Target cell.
Step 104: group's monitoring users receives RRC and connects reprovision (RRCConnectionReconfiguration) message, the physical resource configuration information of the paging resource allocation information of Target cell group, wireless resource configuration and semi-persistent scheduling is carried in this message, after this, group's monitoring users configures paging channel according to the paging resource allocation information carried in this message, paging receiving message; According to the data channel of the physical resource Information configuration group of group's wireless resource configuration of carrying in message and semi-persistent scheduling, receive group data.
Step 105: after group's monitoring users is switched to Target cell, the base station to Target cell is replied RRC connection reprovision and is completed (RRCConnectionReconfigurationComplete) message.
In above-mentioned steps 104, need to connect in reallocation message at existing RRC to carry new information, for this reason, need to connect reallocation message at RRC and increase IE newly.Preferably, following three IE can be increased newly:
A) IEGPCCH-Config, paging resource allocation information, for describing the configuration information of the group paging control channel (GPCCH) of group in Target cell that group's monitoring users is just being monitored in cell-of-origin, specifically comprise: GPCCH paging cycle, paging duration, in paging cycle, send the sequence number of the radio frames of GPCCH and in paging cycle, send the sequence number of subframe of GPCCH.The symbol definition of IEGPCCH-Config is described below:
B) IEPTTGroupInfo, wireless resource configuration, for describing the wireless resource configuration of group in Target cell that group's monitoring users is just being monitored in cell-of-origin, specifically comprise: the wireless parameter configuration index that group's Radio Network Temporary Identifier that group number, group use in Target cell, group service quality configuration index, group control channel (GCCH) and group service channel (GTCH) use and descending semi-persistent scheduling activate configuration information.The symbol definition of IEPTTGroupInfo is described below:
C) IESPSValidation-Config, the physical resource configuration information of semi-persistent scheduling, the configuration information of the physical resource that the descending semi-persistent scheduling of group in Target cell just monitored in cell-of-origin for describing group's monitoring users uses, specifically comprises:
Send for activate semi-persistent scheduling PDCCH radio frames sequence number,
Send for activate semi-persistent scheduling PDCCH the sequence number of subframe in described radio frames,
For Distinguish 0 and Class1 resource indicating mode mark,
For distinguish form 1 and form 1A mark,
Information of radio resource allocation,
Modulating-coding form set (MCS),
New data flag (NDI),
For Physical Uplink Control Channel (PUCCH) power control information,
For distinguish centralized empty Resource Block (LVRB) and distributed empty Resource Block (DVRB) mark,
And descending distribution instruction (DAI).
The symbol definition of IESPSValidation-Config is described below:
Terminal is given to MAC layer information after receiving this cell, and MAC layer is according to the content of DCIFormat1/1A corresponding to information configuration wherein, as shown in table 3.Wherein, the position of SPS resource is that 10*SFN+subframe, SFN and subframe are defined as follows:
SFN=SFN
current, work as SFN
currentmeet the following conditions:
Subframe＝Subframe
starttime
Corresponding to said method, present invention also offers a kind of terminal as shown in Figure 2, for group's monitoring users, this terminal comprises:
Data obtaining module 201, when described group monitoring users is in Idle state, for obtaining measuring control information and wireless resource configuration from system broadcast message;
Measurement module 202, for measuring according to the measuring control information of described acquisition, and when needs reporting measurement reports, initiate wireless heterogeneous networks (RRC) connection establishment process, set up RRC according to the wireless resource configuration of described acquisition with base station to be connected, the state of described group monitoring users is gone to connected state by Idle state;
Handover module 203, when described group monitoring users is in connected state and needs to switch, switches to Target cell for adopting the switching flow of connected state.
Preferably, handover module 203 also connects reallocation message for receiving RRC, and for the physical resource configuration information of the paging resource allocation information, wireless resource configuration and the semi-persistent scheduling that obtain Target cell group from this message, and for configuring paging channel according to obtained paging resource allocation information, paging receiving message, and the data channel of physical resource Information configuration group according to obtained group's wireless resource configuration and semi-persistent scheduling, receive group data.
Preferably, the paging resource allocation information that handover module 203 obtains is the configuration information of the group paging control channel (GPCCH) of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising: GPCCH paging cycle, paging duration, send the sequence number of the radio frames of GPCCH and in paging cycle, send the sequence number of subframe of GPCCH in paging cycle.
Preferably, the wireless resource configuration that handover module 203 obtains is the wireless resource configuration of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising: the wireless parameter configuration index that group's Radio Network Temporary Identifier that group number, group use in Target cell, group service quality configuration index, group GCCH and GTCH use and descending semi-persistent scheduling activate configuration information.
Preferably, the physical resource configuration information of the semi-persistent scheduling that handover module 203 obtains is the configuration information of the physical resource of the descending semi-persistent scheduling use of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
Send for activate semi-persistent scheduling Physical Downlink Control Channel (PDCCH) radio frames sequence number,
Send for activate semi-persistent scheduling PDCCH the sequence number of subframe in described radio frames,
For Distinguish 0 and Class1 resource indicating mode mark,
For distinguish form 1 and form 1A mark,
Information of radio resource allocation,
Modulating-coding form set (MCS),
New data flag (NDI),
For Physical Uplink Control Channel (PUCCH) power control information,
For distinguish LVRB and DVRB mark,
And descending distribution instruction (DAI).
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. a changing method, for group's monitoring users, is characterized in that, comprising:
The group's monitoring users being in Idle state obtains measuring control information and wireless resource configuration from system broadcast message;
The group's monitoring users being in Idle state is measured according to obtained measuring control information, when needs reporting measurement reports, initiate wireless heterogeneous networks (RRC) connection establishment process, set up RRC according to obtained wireless resource configuration and base station to be connected, go to connected state by Idle state;
Be in group's monitoring users of connected state when needs switch, adopt the switching flow of connected state to switch to Target cell.
2. method according to claim 1, is characterized in that, in the process switching to Target cell, comprises further:
Described group monitoring users receives RRC and connects reallocation message, the physical resource configuration information of the paging resource allocation information of Target cell group, wireless resource configuration and semi-persistent scheduling is carried in described message, described group monitoring users is according to the paging resource allocation information configuration paging channel of carrying in described message, paging receiving message, and the data channel of physical resource Information configuration group according to group's wireless resource configuration of carrying in described message and semi-persistent scheduling, receive group data.
3. method according to claim 2, is characterized in that:
Described paging resource allocation information is the configuration information of the group paging control channel (GPCCH) of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
GPCCH paging cycle, paging duration, in paging cycle, send the sequence number of the radio frames of GPCCH and in paging cycle, send the sequence number of subframe of GPCCH.
4. method according to claim 2, is characterized in that:
Described wireless resource configuration is the wireless resource configuration of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
The wireless parameter configuration index that group's Radio Network Temporary Identifier that group number, group use in Target cell, group service quality configuration index, group control channel (GCCH) and group service channel (GTCH) use and descending semi-persistent scheduling activate configuration information.
5. method according to claim 2, is characterized in that:
The physical resource configuration information of described semi-persistent scheduling is the configuration information of the physical resource of the descending semi-persistent scheduling use of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
Send for activate semi-persistent scheduling Physical Downlink Control Channel (PDCCH) radio frames sequence number,
Send for activate semi-persistent scheduling PDCCH the sequence number of subframe in described radio frames,
For Distinguish 0 and Class1 resource indicating mode mark,
For distinguish form 1 and form 1A mark,
Information of radio resource allocation,
Modulating-coding form set (MCS),
New data flag (NDI),
For Physical Uplink Control Channel (PUCCH) power control information,
For distinguish centralized empty Resource Block (LVRB) and distributed empty Resource Block (DVRB) mark,
And descending distribution instruction (DAI).
6. a terminal, for group's monitoring users, is characterized in that, comprising:
Data obtaining module, when described group monitoring users is in Idle state, for obtaining measuring control information and wireless resource configuration from system broadcast message;
Measurement module, for measuring according to the measuring control information of described acquisition, and when needs reporting measurement reports, initiate wireless heterogeneous networks (RRC) connection establishment process, set up RRC according to the wireless resource configuration of described acquisition with base station to be connected, the state of described group monitoring users is gone to connected state by Idle state;
Handover module, when described group monitoring users is in connected state and needs to switch, switches to Target cell for adopting the switching flow of connected state.
7. terminal according to claim 6, is characterized in that:
Described handover module, also connect reallocation message for receiving RRC, and for the physical resource configuration information of the paging resource allocation information, wireless resource configuration and the semi-persistent scheduling that obtain Target cell group from described message, and for configuring paging channel according to obtained paging resource allocation information, paging receiving message, according to the data channel of the physical resource Information configuration group of obtained group's wireless resource configuration and semi-persistent scheduling, receive group data.
8. terminal according to claim 7, is characterized in that:
The paging resource allocation information that described handover module obtains is the configuration information of the group paging control channel (GPCCH) of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
GPCCH paging cycle, paging duration, in paging cycle, send the sequence number of the radio frames of GPCCH and in paging cycle, send the sequence number of subframe of GPCCH.
9. terminal according to claim 7, is characterized in that:
The wireless resource configuration that described handover module obtains is the wireless resource configuration of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
The wireless parameter configuration index that group's Radio Network Temporary Identifier that group number, group use in Target cell, group service quality configuration index, group control channel (GCCH) and group service channel (GTCH) use and descending semi-persistent scheduling activate configuration information.
10. terminal according to claim 7, is characterized in that:
The physical resource configuration information of the semi-persistent scheduling that described handover module obtains is the configuration information of the physical resource of the descending semi-persistent scheduling use of group in Target cell that described group monitoring users is just being monitored in cell-of-origin, comprising:
Send for activate semi-persistent scheduling Physical Downlink Control Channel (PDCCH) radio frames sequence number,
Send for activate semi-persistent scheduling PDCCH the sequence number of subframe in described radio frames,
For Distinguish 0 and Class1 resource indicating mode mark,
For distinguish form 1 and form 1A mark,
Information of radio resource allocation,
Modulating-coding form set (MCS),
New data flag (NDI),
For Physical Uplink Control Channel (PUCCH) power control information,
For distinguish centralized empty Resource Block (LVRB) and distributed empty Resource Block (DVRB) mark,
And descending distribution instruction (DAI).
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