CN107820216B - Scheduling method and device based on SC-MTCH - Google Patents

Scheduling method and device based on SC-MTCH Download PDF

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Publication number
CN107820216B
CN107820216B CN201610815600.2A CN201610815600A CN107820216B CN 107820216 B CN107820216 B CN 107820216B CN 201610815600 A CN201610815600 A CN 201610815600A CN 107820216 B CN107820216 B CN 107820216B
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point
priority
service
initial transmission
service data
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CN107820216A (en
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鲜柯
李川
张光伟
郑岚
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Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information

Abstract

The invention provides a scheduling method and device based on SC-MTCH. The scheduling method based on SC-MTCH comprises the following steps: receiving service data on SC-MTCH and DTCH; obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data; determining a Qos priority of the trunking service and a Qos priority of the point-to-point initial transmission service, wherein the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service; and allocating PDCCH and PDSCH air interface resources for the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that the transmission of the trunking service data is prior to the transmission of the point-to-point initial transmission service data. The scheduling method and device based on SC-MTCH ensure the transmission quality of the trunking service.

Description

Scheduling method and device based on SC-MTCH
Technical Field
The present invention relates to communications technologies, and in particular, to a scheduling method and apparatus based on SC-MTCH.
Background
In order To better promote the development and standardization of the trunking network, a single cell Point To multiple system (SC-PTM) protocol is introduced by the third Generation mobile communication Partnership Project (3rd Generation Partnership Project, 3GPP), and the protocol is based on a Physical Downlink Shared Channel (PDSCH), and two logical channels, namely a single cell broadcast Control Channel (SC-MCCH) and a single cell broadcast Traffic Channel (SC-MTCH), are introduced for transmitting the Control code and user plane data of the trunking user.
In the existing SC-PTM solution, a newly added SC-MTCH logical service channel is used for transmitting trunking service data, such as trunking voice and trunking video, and as the SC-MTCH channel belongs to a typical broadcast channel and has no uplink feedback, the quality of trunking service transmission of the SC-MTCH logical service channel cannot be known; and the existing point-to-point scheduling method of the base station is not suitable for SC-MTCH trunking data transmission, so that the quality of trunking service transmission of SC-MTCH logical service channels cannot be ensured.
Disclosure of Invention
The embodiment of the invention provides a scheduling method and a scheduling device based on SC-MTCH (service center-to-cell transport channel), which are used for solving the technical problem that the quality of cluster service transmitted by an SC-MTCH logical service channel cannot be ensured in the prior art.
The invention provides a scheduling method based on SC-MTCH, which is applied to a base station and comprises the following steps:
receiving service data on a single cell broadcast service channel SC-MTCH and a dedicated service channel DTCH;
obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data;
determining a QoS priority of a trunking service and a QoS priority of a point-to-point initial transmission service, wherein the QoS priority of the trunking service is higher than the QoS priority of the point-to-point initial transmission service;
and allocating PDCCH and PDSCH air interface resources for the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that the transmission of the trunking service data is prior to the transmission of the point-to-point initial transmission service data.
As above, the determining the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service includes:
acquiring the priority of the cluster service, wherein the priority of the cluster service comprises a first basic priority and a first special priority;
acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority;
and judging whether the first basic priority is higher than the second basic priority, if not, setting a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
As above, the determining the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service includes:
acquiring the priority of the cluster service, wherein the priority of the cluster service comprises a first basic priority and a first special priority;
acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority;
setting a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
The method as described above, further comprising:
acquiring the PDCCH aggregation level setting instruction;
and obtaining the aggregation level according to the PDCCH aggregation level setting instruction, so that the service data is transmitted in the PDSCH by adopting a low code rate.
The method for acquiring the PDCCH mode and aggregation level setting instruction includes:
after a user inputs an aggregation level setting instruction through an auxiliary device, receiving the aggregation level setting instruction sent by the auxiliary device.
The method as described above, further comprising:
acquiring an MCS order setting instruction;
and obtaining the MCS order according to the MCS order setting instruction, so that the service data is transmitted in the PDSCH by adopting a low code rate.
The method as described above, further comprising: obtaining an MCS order setting instruction, comprising:
after a user inputs an MCS order setting instruction through auxiliary equipment, receiving the MCS order setting instruction sent by the auxiliary equipment.
In the above method, the PDCCH has the DCI1A mode, and the PDSCH has the QPSK mode.
The invention also provides a scheduling device based on SC-MTCH, comprising:
the service data receiving module is used for receiving service data on a single cell broadcast service channel SC-MTCH and a special service channel DTCH;
the service data classification module is used for obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data;
a Qos priority determination module, configured to determine a Qos priority of a trunking service and a Qos priority of a point-to-point initial transmission service, where the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service;
and a resource allocation module, configured to allocate PDCCH and PDSCH air interface resources to the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that transmission of the trunking service data is prior to transmission of the point-to-point initial transmission service data.
The invention provides a scheduling method and a device based on SC-MTCH, and the scheduling method based on SC-MTCH provided by the invention comprises the following steps: receiving service data on a single cell broadcast service channel SC-MTCH and a special service channel DTCH, and obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data; determining a Qos priority of the trunking service and a Qos priority of the point-to-point initial transmission service, wherein the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service; and allocating PDCCH and PDSCH air interface resources for the trunking service and the point-to-point initial transmission service according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that the transmission of trunking service data is prior to the transmission of the point-to-point initial transmission service data, and the transmission quality of the trunking service is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram of mapping relationships among channels in the SC-PTM protocol;
FIG. 2 is a flowchart illustrating a first embodiment of a scheduling method based on SC-MTCH according to the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a scheduling method based on SC-MTCH according to the present invention;
FIG. 4 is a flowchart of a third embodiment of a scheduling method based on SC-MTCH according to the present invention;
fig. 5 is a first schematic diagram of a user interface of an auxiliary device when setting a PDCCH aggregation level setting instruction;
fig. 6 is a schematic diagram of a second user interface of the auxiliary device when setting a PDCCH aggregation level setting instruction;
FIG. 7 is a block diagram of a first embodiment of a scheduling apparatus based on SC-MTCH according to the present invention;
fig. 8 is a schematic structural diagram of a second scheduling apparatus based on SC-MTCH according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The SC-PTM protocol introduces an SC-MTCH logical traffic channel for the transmission of trunked traffic data, such as trunked voice and trunked video. Because the SC-MTCH channel belongs to a typical broadcast channel and no uplink feedback exists, the quality of the cluster service transmitted by the SC-MTCH logical service channel cannot be known; and the SC-PTM protocol requires that the SC-MTCH resource allocation adopts dynamic scheduling, and does not support semi-static scheduling, and meanwhile, Radio Link Control (RLC) adopts an Unacknowledged Mode (UM), and does not support Hybrid Automatic Repeat Request (HARQ) retransmission, so that the quality of transmitting the trunking service through the SC-MTCH logical service channel cannot be guaranteed. The invention provides a scheduling method based on SC-MTCH aiming at the characteristics of SC-MTCH broadcast service channels under the constraint of dynamic scheduling to ensure the transmission quality of SC-MTCH services. The present invention will be described in detail below.
First, in order to clearly describe the embodiment of the present invention, the mapping relationship between the channels will be described in detail. Fig. 1 is a mapping relationship diagram of channels under the SC-PTM protocol, referring to fig. 1, wherein a Broadcast Control Channel (BCCH) is a downlink Channel for broadcasting system Control information, and is used to Broadcast information such as bandwidth and frequency point of a cell; a Paging Control Channel (PCCH) is a downlink Channel for transmitting Paging information, and is mapped to a Paging Channel (PCH), the PCH is a downlink transmission Channel and is always transmitted in a whole cell, and the transmission of the PCH is associated with the transmission of a Paging indicator generated by a physical layer to support an effective sleep mode; a Common Control Channel (CCCH) is a bidirectional Channel for transmitting Control information between a network and a User Equipment (UE); a Dedicated Control Channel (DCCH) for transmitting a point-to-point bidirectional Channel of Dedicated Control information between a UE and a Radio Network Controller (RNC), the Channel being established during a Radio Resource Control (RRC) connection establishment procedure; a Dedicated Traffic Channel (DTCH), which is a point-to-point Channel Dedicated to one UE for transmitting user information, that is, used for transmitting a point-to-point service, where the point-to-point service has initial transmission data and retransmission data, and the Channel exists in both uplink and downlink; the SC-MCCH is used for transmitting a control code of a cluster user; the SC-MTCH is used for transmission of trunking user plane data, i.e. transmission of trunking traffic data. The above logical channels are mapped to a Downlink Shared Channel (DL-SCH) except the PCCH, and the DL-SCH Channel uses hybrid automatic HARQ transmission, and can adjust a modulation scheme/coding rate and transmission power used for transmission to implement link adaptation. Each logical Channel is finally mapped to a Physical Downlink Shared Channel (PDSCH) for traffic data transmission. The BCCH is finally mapped to a Physical Broadcast Channel (PBCH).
The scheduling method of the present invention will be described in detail below with reference to fig. 1 and 2.
Fig. 2 is a flowchart of a first embodiment of a scheduling method based on SC-MTCH provided in the present invention, where the method may be implemented based on a base station, and as shown in fig. 2, the method of this embodiment may include:
s101, receiving service data on a single cell broadcast service channel SC-MTCH and a dedicated service channel DTCH;
s102, obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data;
s103, determining the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, wherein the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service;
and S104, allocating PDCCH and PDSCH air interface resources for the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that the transmission of the trunking service data is prior to the transmission of the point-to-point initial transmission service data.
In this embodiment, the overall scheduling sequence of each channel by the base station is BCCH > PCCH > CCCH > SC-MCCH > DCCH > DTCH (the service data on the DTCH channel scheduled here is retransmission data of a point-to-point service) > SC-MTCH > DTCH (the service data on the DTCH channel scheduled here is initial transmission data of a point-to-point service). The dispatching of the trunking service on the SC-MTCH is prior to the dispatching of the point-to-point initial transmission service on the DTCH, so that the transmission quality of the trunking service can be ensured.
Next, through the description of steps S101 to S104, how to schedule the trunking service on the SC-MTCH before scheduling the point-to-point initial transmission service on the DTCH in this embodiment is described in detail.
In S101, the core network sends trunking service data and point-to-point initial transmission service data to the base station, the base station receives trunking service data and point-to-point initial transmission service data, the trunking service data is transmitted through an SC-MTCH channel, and the point-to-point initial transmission service data is transmitted through a DTCH channel.
For S102, after the base station receives the trunking service data and the point-to-point initial transmission service data, the trunking service data and the point-to-point initial transmission service data need to be distinguished to obtain the trunking service data and the point-to-point initial transmission service data, respectively. Whether trunking service data or point-to-point initial transmission service data needs to be established, each bearer needs to select a service channel, namely DTCH or SC-MTCH, if DTCH is selected to be the point-to-point initial transmission service, SC-MTCH is selected to be the trunking service, the attributes are determined when the bearer is established, and each service data carries attribute information of the bearer, so that a base station can distinguish trunking service data from point-to-point initial transmission service data through the acquired attribute information of the bearer carried by the service data.
In S103, after obtaining the trunking service data and the point-to-point initial transmission service data, the base station needs to determine the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service. Specifically, the Qos priority of the trunking service needs to be higher than the Qos priority of the point-to-point initial transmission service; because there may be multiple listening users under a trunking user to receive the SC-MTCH broadcast service, the transmission quality of the trunking service can only be guaranteed if the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service, for example, the Qos of trunking voice is higher than the Qos of normal point-to-point voice, and the Qos of trunking video is higher than the Qos of normal point-to-point video.
In S104, after ensuring that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service, the base station allocates PDCCH and PDSCH air interface resources to trunking service data and point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that transmission of the trunking service data is prior to transmission of the point-to-point initial transmission service data. That is, the base station preferentially allocates the PDCCH and PDSCH air interface resources for the trunking service data for transmission, and then allocates the PDCCH and PDSCH air interface resources for the point-to-point initial transmission service data for transmission, thereby ensuring the transmission quality of the trunking service.
The scheduling method based on the SC-MTCH of the embodiment comprises the following steps: receiving service data on a single cell broadcast service channel SC-MTCH and a dedicated service channel DTCH; obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data; determining a Qos priority of the trunking service and a Qos priority of the point-to-point initial transmission service, wherein the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service; and allocating PDCCH and PDSCH air interface resources for the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that the transmission of the trunking service data is prior to the transmission of the point-to-point initial transmission service data, and the transmission quality of the trunking service is ensured.
The following describes in detail a specific implementation manner of "determining Qos priority of trunking service and Qos priority of point-to-point initial transmission service" in the previous embodiment.
One way that can be achieved is: acquiring the priority of a cluster service, wherein the priority of the cluster service comprises a first basic priority and a first special priority; acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority; and judging whether the first basic priority is higher than the second basic priority, if not, setting on a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service, and if so, not performing any operation.
Specifically, after acquiring a first basic priority of the trunking service and a second basic priority of the point-to-point initial transmission service, the embodiment compares the first basic priority with the second basic priority, and if the first basic priority is greater than the second basic priority, it indicates that the Qos priority of the trunking service is originally higher than the priority of the point-to-point initial transmission service, and without any operation, the base station preferentially allocates PDCCH and PDSCH air interface resources for trunking service data to perform service transmission. And only when the first basic priority is less than or equal to the second basic priority, setting a preset position of a first special priority of the trunking service, namely changing the preset position from 0 to 1, so that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service, and the base station preferentially allocates PDCCH and PDSCH air interface resources for trunking service data to perform service transmission. The embodiment is suitable for the condition that the transmitted service data volume is small.
Another possible implementation manner is that the priority of the cluster service is obtained, and the priority of the cluster service includes a first basic priority and a first special priority; and acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority, setting a preset position of the first special priority, and setting the preset position to indicate that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
Specifically, after the first basic priority of the trunking service and the second basic priority of the point-to-point initial transmission service are obtained, the first basic priority and the second basic priority are not compared, and the preset position of the first special priority of the trunking service is directly set, even if the preset position is changed from 0 to 1, so that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service. The embodiment is suitable for the condition that the transmitted service data volume is large.
Since there is no uplink feedback in the SC-MTCH, the basic priority of the trunking service is calculated without considering the downlink radio channel quality f (Δ CQI), and the basic priority of the trunking service is obtained according to the formula one:
Priority＝f(delay)×Kpf+ rand _ num formula one
The basic priority of the point-to-point initial transmission service is obtained according to a formula II:
Priority＝f(ΔCQI)×f(delay)×Kpf+ rand _ num formula two
Wherein f (delta CQI) is a channel factor and is calculated according to the CQI fed back by the terminal, and the value is larger when the instantaneous channel quality is better; f (delay) is the delay factor: the higher the time delay requirement of the current bearer service is, the larger the real-time measurement data time delay is, and the higher the factor value is; kpfScheduling a priority comparison factor for the connection to ensure that the dedicated bearer calculates a priority value higher than the non-dedicated bearer; rand _ num belongs to a random number. f (Δ CQI), f (delay) and KpfThe obtaining methods of (2) all adopt the methods in the prior art, and rand _ num is used for f (delay) xK when the basic priority of two cluster services is calculatedpfWhen the two cluster services are consistent, different rand _ num are randomly selected to ensure that the basic priority of the two cluster services is different, or f (delta CQI) multiplied by f (delay) multiplied by K when the basic priority of the two point-to-point initial transmission services is calculatedpfAnd when the service is consistent, different rand _ num is randomly selected, so that the basic priority of the two point-to-point initial transmission services is different.
In order to further ensure the transmission quality of the trunking service, the trunking service needs to be transmitted with a low code rate in the PDSCH, and in order to ensure that trunking service data is transmitted with a low code rate in the PDSCH, the mode of the PDCCH needs to be the DCI1A mode, the resource allocation is performed in a single stream manner, and the aggregation level of the PDCCH is set, wherein the aggregation level configuration principle needs to ensure that the service data is transmitted with a low code rate in the PDSCH; it is also necessary to make the Modulation mode of the PDSCH be a QPSK mode, and set a Modulation and Coding Scheme (MCS) order, where the MCS order setting principle is to ensure that the service data is transmitted with a low code rate in the PDSCH.
The setting of the PDCCH aggregation level and the setting of the MCS order will be described in detail below.
First, setting of a PDCCH aggregation level will be explained.
Fig. 3 is a flowchart of a second embodiment of the scheduling method based on SC-MTCH provided in the present invention, and referring to fig. 3, the method of the present embodiment includes:
s301, acquiring a PDCCH aggregation level setting instruction;
s302, according to the PDCCH aggregation level setting instruction, the aggregation level is obtained, so that the service data is transmitted in the PDSCH by adopting a low code rate.
Specifically, there are two PDCCH aggregation levels, one is 8, one is 4, and 4 is selected in this embodiment. In a specific PDCCH aggregation level setting process, the base station needs to first obtain a PDCCH aggregation level setting instruction, and then obtain an aggregation level according to the PDCCH aggregation level setting instruction.
Wherein, obtaining the PDCCH aggregation level setting instruction includes:
and after the user inputs an aggregation level setting instruction through the auxiliary equipment, receiving the aggregation level setting instruction sent by the auxiliary equipment. Specifically, an auxiliary device outside the base station is wirelessly or wiredly connected with the base station, an aggregation level setting instruction is manually input or voice input or selectively input on a user interface of the auxiliary device, and then the base station receives the PDCCH aggregation level setting instruction with the aggregation level sent by the auxiliary device. Alternatively, the auxiliary device may be a terminal device, and the terminal device may be a computer, a mobile phone, a tablet, or the like.
The embodiment shown in fig. 3 will be further described with reference to fig. 5 to 6.
Fig. 5 is a schematic diagram of a user interface of an auxiliary device when setting a PDCCH aggregation level setting instruction, and fig. 6 is a schematic diagram of a user interface of an auxiliary device when setting a PDCCH aggregation level setting instruction.
Referring to fig. 5, the auxiliary device is a terminal device, a user interface of the terminal device is provided with a PDCCH aggregation level input box, a user can manually input a PDCCH aggregation level 4, and then a PDCCH aggregation level setting instruction is sent to the base station; the user interface can also be provided with a voice input identifier, the voice input identifier is clicked, the user inputs the PDCCH aggregation level 4 by voice, and then a PDCCH aggregation level setting instruction is sent to the base station. Referring to fig. 6, the user interface may further be provided with a PDCCH aggregation level selection list, click on 4 in the PDCCH aggregation level selection list, and then send a PDCCH aggregation level setting instruction to the base station.
Next, MCS order setting is explained.
Fig. 4 is a flowchart of a third embodiment of the scheduling method based on SC-MTCH provided in the present invention, and referring to fig. 4, the method of the present embodiment includes:
s401, acquiring an MCS order setting instruction;
s402, according to the MCS order setting instruction, obtaining the MCS order, so that the service data is transmitted in the PDSCH by adopting a low code rate.
Specifically, the MCS order is 0-27, and is 0-9 in the embodiment. In the specific MCS order setting process, the base station needs to first obtain an MCS order setting instruction, and then obtain an MCS order according to the MCS order setting instruction.
Wherein, obtaining the MCS order setting instruction includes:
after a user inputs an MCS order setting instruction through the auxiliary equipment, the MCS order setting instruction sent by the auxiliary equipment is received. Specifically, an auxiliary device outside the base station is wirelessly or wiredly connected with the base station, an MCS order setting instruction is manually input or voice input or selectively input on a user interface of the auxiliary device, and then the base station receives the setting instruction with the MCS order sent by the auxiliary device. Alternatively, the auxiliary device may be a terminal device.
The specific implementation manner of MCS setting is the same as that of PDCCH aggregation level setting, and is not described herein again.
Fig. 7 is a schematic structural diagram of a first embodiment of a scheduling apparatus based on SC-MTCH provided in the present invention, and as shown in fig. 7, the apparatus of this embodiment may include: a service data receiving module 71, which receives service data on a single cell broadcast service channel SC-MTCH and a dedicated service channel DTCH; the service data classification module 72 is configured to obtain cluster service data and point-to-point initial transmission service data according to the attribute information of the bearer carried by the service data; a Qos priority determining module 73, configured to determine a Qos priority of the trunking service and a Qos priority of the point-to-point initial transmission service, where the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service; and a resource allocation module 74, configured to allocate PDCCH and PDSCH air interface resources for the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that transmission of the trunking service data is prior to transmission of the point-to-point initial transmission service data.
The Qos priority determining module 73 is specifically configured to obtain a priority of a trunking service, where the priority of the trunking service includes a first basic priority and a first special priority;
acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority;
and judging whether the first basic priority is higher than the second basic priority, if not, setting on a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
Or, the Qos priority determining module 73 is specifically configured to obtain the priority of the trunking service, where the priority of the trunking service includes a first basic priority and a first special priority;
acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority;
setting a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 8 is a schematic structural diagram of a second embodiment of a scheduling apparatus based on an SC-MTCH provided in the present invention, as shown in fig. 8, the apparatus of this embodiment may further include, on the basis of the apparatus structure shown in fig. 7: a first obtaining module 81, configured to obtain a PDCCH aggregation level setting instruction and an MCS order setting instruction; and a second obtaining module 82, configured to obtain a PDCCH aggregation level according to the PDCCH aggregation level setting instruction, and obtain an MCS order according to the MCS order setting instruction, so that service data is transmitted with a low code rate in the PDSCH.
The apparatus of this embodiment may be used to implement the technical solutions of the method embodiments shown in fig. 3 to fig. 4, and the implementation principles and technical effects are similar, which are not described herein again.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A scheduling method based on SC-MTCH is characterized in that the scheduling method is applied to a base station and comprises the following steps:
receiving service data on a single cell broadcast service channel SC-MTCH and a dedicated service channel DTCH;
obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data;
determining a QoS priority of a trunking service and a QoS priority of a point-to-point initial transmission service, wherein the QoS priority of the trunking service is higher than the QoS priority of the point-to-point initial transmission service;
and allocating PDCCH and PDSCH air interface resources for the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that the transmission of the trunking service data is prior to the transmission of the point-to-point initial transmission service data.
2. The method of claim 1, wherein the determining the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service comprises:
acquiring the priority of the cluster service, wherein the priority of the cluster service comprises a first basic priority and a first special priority;
acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority;
and judging whether the first basic priority is higher than the second basic priority, if not, setting a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
3. The method of claim 1, wherein the determining the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service comprises:
acquiring the priority of the cluster service, wherein the priority of the cluster service comprises a first basic priority and a first special priority;
acquiring the priority of the point-to-point initial transmission service, wherein the priority of the point-to-point initial transmission service comprises a second basic priority and a second special priority;
setting a preset position of the first special priority, wherein the setting is used for indicating that the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service.
4. The method of claim 1, further comprising:
acquiring the PDCCH aggregation level setting instruction;
and obtaining the aggregation level according to the PDCCH aggregation level setting instruction, so that the trunking service data is transmitted in the PDSCH by adopting a low code rate.
5. The method of claim 4, wherein obtaining the PDCCH aggregation level setting instruction comprises:
after a user inputs an aggregation level setting instruction through an auxiliary device, receiving the aggregation level setting instruction sent by the auxiliary device.
6. The method of claim 1, further comprising:
acquiring a modulation and coding strategy MCS order setting instruction;
and obtaining the MCS order according to the MCS order setting instruction, so that the trunking service data is transmitted in the PDSCH by adopting a low code rate.
7. The method of claim 6, further comprising: obtaining an MCS order setting instruction, comprising:
and after a user inputs the MCS order setting instruction through auxiliary equipment, receiving the MCS order setting instruction sent by the auxiliary equipment.
8. The method according to any one of claims 1 to 7, wherein the PDCCH mode is a DCI1A mode, the resource allocation is performed in a single stream manner, and the modulation mode of the PDSCH is a QPSK mode.
9. An SC-MTCH based scheduling apparatus, comprising:
the service data receiving module is used for receiving service data on a single cell broadcast service channel SC-MTCH and a special service channel DTCH;
the service data classification module is used for obtaining cluster service data and point-to-point initial transmission service data according to the carried attribute information carried by the service data;
a Qos priority determination module, configured to determine a Qos priority of a trunking service and a Qos priority of a point-to-point initial transmission service, where the Qos priority of the trunking service is higher than the Qos priority of the point-to-point initial transmission service;
and a resource allocation module, configured to allocate PDCCH and PDSCH air interface resources to the trunking service data and the point-to-point initial transmission service data according to the Qos priority of the trunking service and the Qos priority of the point-to-point initial transmission service, so that transmission of the trunking service data is prior to transmission of the point-to-point initial transmission service data.
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