技术领域technical field
本发明涉及通信技术领域，特别涉及一种调制编码方式的调整方法及基站。The invention relates to the field of communication technology, in particular to a method for adjusting a modulation and coding mode and a base station.
背景技术Background technique
在某些行业中，同一时刻，一个用户需要知晓其他用户的工作情况，从而调度其他用户的工作。例如，在物管安保行业中，主管需要知道其带领的工作人员的工作情况，从而调度这些工作人员的工作。为此，目前的系统可以提供组呼业务。组呼业务是发生在由多个终端组成的小组内的业务，在组呼业务中，只能有一个主动发起呼叫的终端，其余终端都是被呼叫方。例如，组呼业务可以是发生在由多个终端组成的小组内的通话，在通话过程中，一个终端可以对组内的其他所有终端主动发起呼叫，在发起呼叫的终端的用户讲话时，该组内的其他终端的用户可以同时收听。这样，一个小组内的某个用户就可以知道该小组内其他用户的情况，便于调度其他用户的工作。In some industries, at the same time, a user needs to know the work situation of other users, so as to schedule the work of other users. For example, in the property management and security industry, supervisors need to know the working conditions of the staff they lead, so as to schedule the work of these staff. For this reason, the current system can provide group call service. The group call service is a service that occurs in a group composed of multiple terminals. In the group call service, there can only be one terminal that initiates a call, and the other terminals are called parties. For example, the group call service can be a call that occurs in a group composed of multiple terminals. During the call, a terminal can initiate a call to all other terminals in the group. When the user of the terminal that initiates the call speaks, the Users of other terminals in the group can listen to it at the same time. In this way, a certain user in a group can know the situation of other users in the group, which is convenient for scheduling the work of other users.
通常，可以事先根据终端所进行的业务将终端划分为多个组。例如，终端A、终端B、终端C、终端D、终端E和终端F，终端A、终端B和终端C进行的业务是物管安保业务，那么可以将终端A、终端B和终端C划分为一个组。终端D、终端E和终端F之间进行的业务是铁路后勤业务，那么可以将终端D、终端E和终端F划分为一个组。终端分组之后，终端所在的组可以请求接入基站，基站事先可以获知终端所在组的编号，从而可以根据不同的组的编号对不同的组发起呼叫。Usually, the terminals can be divided into multiple groups according to the services performed by the terminals in advance. For example, terminal A, terminal B, terminal C, terminal D, terminal E, and terminal F, the services performed by terminal A, terminal B, and terminal C are property management and security services, then terminal A, terminal B, and terminal C can be divided into a group. The service between terminal D, terminal E and terminal F is railway logistics service, so terminal D, terminal E and terminal F can be divided into one group. After the terminals are grouped, the group where the terminal belongs can request to access the base station, and the base station can know the number of the group where the terminal belongs to in advance, so that it can initiate calls to different groups according to the numbers of different groups.
基站覆盖下的任意一个组需进行组呼业务时，基站就会为该组呼业务分配带宽，以传输组呼业务数据。在长期演进(Long Term Evolution，LTE)系统中，系统提供的信道可以为系统内的全体终端共用。基站在传输组呼业务数据时可以采用多种调制编码方式(Modulation and Coding Scheme，MCS)，例如正交相移键控(Quadrature Phase ShiftKeyin，QPSK)方式、16正交幅度调制(Quadrature Amplitude Modulation，16QAM)方式、或64QAM方式等。不同的MCS对应不同的索引值，基站在选择MCS时，选择了索引值就是选择了相应的MCS。例如MCS的索引值为1，则对应的MCS为QPSK方式，MCS的索引值为3，则对应的MCS为16QAM方式。其中，MCS的索引值也称为MCS的阶数。When any group under the coverage of the base station needs to perform a group call service, the base station will allocate bandwidth for the group call service to transmit group call service data. In a long term evolution (Long Term Evolution, LTE) system, channels provided by the system may be shared by all terminals in the system. The base station can adopt a variety of modulation and coding schemes (Modulation and Coding Scheme, MCS) when transmitting group call service data, such as quadrature phase shift keying (Quadrature Phase ShiftKeyin, QPSK) mode, 16 quadrature amplitude modulation (Quadrature Amplitude Modulation, 16QAM) method, or 64QAM method, etc. Different MCSs correspond to different index values, and when the base station selects an MCS, selecting an index value means selecting a corresponding MCS. For example, if the index value of the MCS is 1, then the corresponding MCS is in the QPSK mode; if the index value of the MCS is 3, then the corresponding MCS is in the 16QAM mode. Wherein, the index value of the MCS is also referred to as the order of the MCS.
通常情况下，基站根据终端反馈的信道质量指示(Channel Quality indicator，CQI)来确定如何配置MCS的阶数。对于处于无线资源控制协议连接(Radio ResourceControl Connect，RRC Connect)的终端来说，可以向基站发送CQI，从而基站可以根据处于RRC Connect的终端反馈的CQI来确定配置的MCS的阶数。而在LTE系统中，组内的大多数终端都处于空闲(Idle)状态，处于Idle状态的终端无法将CQI反馈给基站，所以基站会预先为该基站覆盖的所有组配置MCS的阶数。而MCS的阶数越大，数据的传输速率就越大，即同一时间段内，需要传输的数据就越多，而在有限的带宽内，大量的数据容易造成堵塞。因此，为了保证数据传输的可靠性，基站在为所有组配置初始的MCS时，会为所有组预先配置较小阶数的MCS。Usually, the base station determines how to configure the order of the MCS according to a channel quality indicator (Channel Quality indicator, CQI) fed back by the terminal. For a terminal in a radio resource control protocol connection (Radio Resource Control Connect, RRC Connect), it can send a CQI to the base station, so that the base station can determine the configured MCS order according to the CQI fed back by the terminal in RRC Connect. In the LTE system, most of the terminals in the group are in the idle state, and the terminals in the idle state cannot feed back the CQI to the base station, so the base station will pre-configure the MCS order for all the groups covered by the base station. The larger the order of MCS, the higher the data transmission rate, that is, the more data needs to be transmitted in the same time period, and within the limited bandwidth, a large amount of data is likely to cause congestion. Therefore, in order to ensure the reliability of data transmission, when configuring the initial MCS for all groups, the base station will pre-configure MCS with a smaller order for all groups.
但是MCS的阶数越小，基站根据该MCS为每个组要进行的呼业务分配带宽时，所分配的每个资源块(Resource Block，RB)能够承载的数据量就越少。所以基站在采用较小的MCS的阶数的情况下为每个组要进行的呼业务分配带宽时，就需要分配较多的RB，导致了传输资源的浪费。However, the smaller the order of the MCS, the smaller the amount of data that each allocated resource block (Resource Block, RB) can carry when the base station allocates bandwidth for the call service to be performed by each group according to the MCS. Therefore, when the base station allocates bandwidth for the paging service to be performed by each group under the condition of adopting a small MCS order, it needs to allocate more RBs, resulting in a waste of transmission resources.
发明内容Contents of the invention
本发明实施例提供一种调制编码方式的调整方法及基站，达到节省传输资源的有益效果。Embodiments of the present invention provide a method for adjusting a modulation and coding mode and a base station, so as to achieve the beneficial effect of saving transmission resources.
第一方面，本发明一实施例提供了一种调制编码方式的调整方法，所述调整方法，包括：In the first aspect, an embodiment of the present invention provides a method for adjusting a modulation and encoding method, and the adjustment method includes:
基站根据采用的预设调制编码方式MCS的阶数为至少一个组呼业务分配带宽；其中，基站覆盖下的终端划分为多个组，其中每组包括多个终端，所述组呼业务为任意一个终端与任意一个组内的其他终端同时进行呼叫的业务；The base station allocates bandwidth for at least one group call service according to the order of the preset modulation and coding method MCS adopted; wherein, the terminals covered by the base station are divided into multiple groups, wherein each group includes multiple terminals, and the group call service is any A service in which a terminal makes a call with other terminals in any group at the same time;
若为所述至少一个组呼业务分配的带宽大于第一预设带宽，则所述基站增大对所述至少一个组呼业务采用的MCS的阶数。If the bandwidth allocated for the at least one group call service is greater than the first preset bandwidth, the base station increases the order of the MCS used for the at least one group call service.
可选的，所述基站增大对所述至少一个组呼业务采用的MCS的阶数，包括：Optionally, the base station increases the order of the MCS adopted for the at least one group call service, including:
所述基站从所述至少一个组呼业务中选取所在的组的下行信道质量指示CQI的值大于第一阈值的M个组呼业务；其中，一个组的CQI的值为所述一个组包括的多个终端上报的CQI的值的平均值，M为正整数；The base station selects M group call services whose downlink channel quality indicator CQI value of the group is greater than the first threshold from the at least one group call service; wherein, the CQI value of a group is included in the group The average value of the CQI values reported by multiple terminals, M is a positive integer;
所述基站增大对所述M个组呼业务分别采用的M个MCS的阶数。The base station increases the orders of the M MCSs respectively used for the M group call services.
可选的，还包括：Optionally, also include:
若为所述至少一个组呼业务分配的带宽小于或等于所述第一预设带宽，则所述基站判断为所述至少一个组呼业务分配的带宽是否小于第二预设带宽；其中，所述第二预设带宽小于所述第一预设带宽；If the bandwidth allocated for the at least one group call service is less than or equal to the first preset bandwidth, then the base station judges whether the bandwidth allocated for the at least one group call service is smaller than the second preset bandwidth; wherein, The second preset bandwidth is smaller than the first preset bandwidth;
若为所述至少一个组呼业务分配的带宽小于所述第二预设带宽，则所述基站减小对所述至少一个组呼业务采用的MCS的阶数。If the bandwidth allocated for the at least one group call service is smaller than the second preset bandwidth, the base station reduces the order of the MCS used for the at least one group call service.
可选的，所述基站减小对所述至少一个组呼业务采用的MCS的阶数，包括：Optionally, the base station reduces the order of the MCS adopted for the at least one group call service, including:
所述基站从所述至少一个组呼业务中选取所在的组的下行信道质量指示CQI的值小于第二阈值的N个组呼业务；其中，一个组的CQI的值为所述一个组包括的多个终端上报的CQI的值的平均值，N为正整数；The base station selects N group call services whose downlink channel quality indicator CQI value of the group is less than the second threshold value from the at least one group call service; wherein, the CQI value of a group is included in the group The average value of the CQI values reported by multiple terminals, N is a positive integer;
所述基站减小对所述N个组呼业务分别采用的N个MCS的阶数。The base station reduces the orders of the N MCSs respectively used for the N group call services.
可选的，所述一个组包括的多个终端上报的CQI的值的平均值为：Optionally, the average value of the CQI values reported by multiple terminals included in the group is:
所述一个组中处于无线资源控制协议连接RRC CONNECT状态的终端上报的CQI的值和处于无线资源控制协议空闲RRC IDLE状态的终端上报的CQI的值的平均值。An average value of CQI values reported by terminals in RRC CONNECT state and CQI values reported by terminals in RRC IDLE state in the group.
第二方面，本发明一实施例提供了一种基站，该基站包括：In a second aspect, an embodiment of the present invention provides a base station, where the base station includes:
分配模块，用于根据采用的预设调制编码方式MCS的阶数为至少一个组呼业务分配带宽；其中，基站覆盖下的终端划分为多个组，其中每组包括多个终端，所述组呼业务为任意一个终端与任意一个组内的其他终端同时进行呼叫的业务；An allocation module, configured to allocate bandwidth for at least one group call service according to the order of the preset modulation and coding method MCS adopted; wherein, the terminals under the coverage of the base station are divided into multiple groups, wherein each group includes multiple terminals, and the group The call service is a service in which any terminal makes a call with other terminals in any group at the same time;
调整模块，用于若为所述至少一个组呼业务分配的带宽大于第一预设带宽，则所述基站增大对所述至少一个组呼业务采用的MCS的阶数。An adjustment module, configured to, if the bandwidth allocated for the at least one group call service is greater than a first preset bandwidth, then the base station increases the order of the MCS adopted for the at least one group call service.
可选的，所述调整模块增大对所述至少一个组呼业务采用的MCS的阶数，包括：Optionally, the adjustment module increases the order of the MCS adopted for the at least one group call service, including:
所述调整模块从所述至少一个组呼业务中选取所在的组的下行信道质量指示CQI的值大于第一阈值的M个组呼业务；其中，一个组的CQI的值为所述一个组包括的多个终端上报的CQI的值的平均值，M为正整数；The adjustment module selects M group call services whose downlink channel quality indicator CQI value of the group is greater than the first threshold from the at least one group call service; wherein, the CQI value of a group includes The average value of the CQI values reported by multiple terminals, M is a positive integer;
所述调整模块增大对所述M个组呼业务分别采用的M个MCS的阶数。The adjustment module increases the orders of the M MCSs respectively used for the M group call services.
可选的，所述调整模块还用于：Optionally, the adjustment module is also used for:
若为所述至少一个组呼业务分配的带宽小于或等于所述第一预设带宽，则所述调整模块判断为所述至少一个组呼业务分配的带宽是否小于第二预设带宽；其中，所述第二预设带宽小于所述第一预设带宽；If the bandwidth allocated for the at least one group call service is less than or equal to the first preset bandwidth, the adjustment module determines whether the bandwidth allocated for the at least one group call service is smaller than the second preset bandwidth; wherein, The second preset bandwidth is smaller than the first preset bandwidth;
若为所述至少一个组呼业务分配的带宽小于所述第二预设带宽，则所述调整模块减小对所述至少一个组呼业务采用的MCS的阶数。If the bandwidth allocated for the at least one group call service is smaller than the second preset bandwidth, the adjustment module reduces the order of the MCS used for the at least one group call service.
可选的，所述调整模块减小对所述至少一个组呼业务采用的MCS的阶数，包括：Optionally, the adjustment module reduces the order of the MCS adopted for the at least one group call service, including:
所述调整模块从所述至少一个组呼业务中选取所在的组的下行信道质量指示CQI的值小于第二阈值的N个组呼业务；其中，一个组的CQI的值为所述一个组包括的多个终端上报的CQI的值的平均值，N为正整数；The adjustment module selects N group call services whose downlink channel quality indicator CQI value of the group is less than the second threshold value from the at least one group call service; wherein, the CQI value of a group includes The average value of the CQI values reported by multiple terminals, N is a positive integer;
所述调整模块减小对所述N个组呼业务分别采用的N个MCS的阶数。The adjustment module reduces the orders of the N MCSs respectively used for the N group call services.
可选的，所述一个组包括的多个终端上报的CQI的值的平均值为：Optionally, the average value of the CQI values reported by multiple terminals included in the group is:
所述一个组中处于无线资源控制协议连接RRC CONNECT状态的终端上报的CQI的值和处于无线资源控制协议空闲RRC IDLE状态的终端上报的CQI的值的平均值。An average value of CQI values reported by terminals in RRC CONNECT state and CQI values reported by terminals in RRC IDLE state in the group.
本发明实施例中，基站根据预设的MCS的阶数为至少一个组呼业务分配的带宽的大小来调整MCS的阶数，若为至少一个组呼业务分配的带宽大于第一预设带宽，那么基站为至少一个组呼业务分配的带宽就较大，可能接近基站所支持的最大带宽，此时基站可以增大MCS的阶数，从而根据增大后的MCS的阶数为至少一个组呼业务重新分配带宽，这样所分配的一个RB所能承载的数据量较多，需分配的RB的数目就较少，从而节省了传输资源。In the embodiment of the present invention, the base station adjusts the MCS order according to the size of the bandwidth allocated for at least one group call service according to the preset MCS order. If the bandwidth allocated for at least one group call service is greater than the first preset bandwidth, Then the base station allocates a large bandwidth for at least one group call service, which may be close to the maximum bandwidth supported by the base station. At this time, the base station can increase the order of the MCS, so that at least one group call service can be allocated according to the order of the increased MCS. The service re-allocates the bandwidth, so that one allocated RB can carry more data, and the number of RBs to be allocated is less, thereby saving transmission resources.
附图说明Description of drawings
图1为本发明实施例提供的集群通信系统的一种架构图；FIG. 1 is an architecture diagram of a trunking communication system provided by an embodiment of the present invention;
图2为本发明实施例提供的调制编码方式的调整方法的流程图；FIG. 2 is a flow chart of a method for adjusting a modulation and coding scheme provided by an embodiment of the present invention;
图3为现有技术中调制编码方式的调整方法导致系统容量受限的示意图；FIG. 3 is a schematic diagram of a system capacity limitation caused by an adjustment method of a modulation and coding mode in the prior art;
图4为本发明实施例提供的解决系统容量受限的一种示意图；FIG. 4 is a schematic diagram of solving system capacity limitation provided by an embodiment of the present invention;
图5为本发明实施例提供的解决系统容量受限的一种示意图；FIG. 5 is a schematic diagram of solving system capacity limitation provided by an embodiment of the present invention;
图6为本发明实施例提供的基站的一种结构示意图。FIG. 6 is a schematic structural diagram of a base station provided by an embodiment of the present invention.
具体实施方式detailed description
为使本发明的目的、技术方案和优点更加清楚明白，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
首先，介绍本发明实施例的一种应用场景。First, an application scenario of the embodiment of the present invention is introduced.
请参见图1，图1所示为通信系统的一种架构图。图1包括基站101和多个终端102。基站101可以是演进型基站(Evolved Node B，eNB或e-NodeB)，终端102是用户所使用的终端，如对讲机。人们可以事先根据多个终端102之间所进行的业务将多个终端102划分为多个组，每个组可以包括多个终端102。多个终端102被划分成多个组之后，终端102所在的组可以请求接入基站，基站事先可以获知终端102所在组的编号，从而可以根据不同的组的编号对不同的组发起呼叫。例如，有3个终端102之间进行的业务是物管安保业务，将这3个终端划分为一个组，又有4个终端102之间进行的业务是铁路后勤业务，将这4个终端划分为一个组。图1以基站101覆盖下的10个终端102分为3个组为例，分别为组1、组2和组3。Please refer to FIG. 1 , which is an architecture diagram of a communication system. FIG. 1 includes a base station 101 and multiple terminals 102 . The base station 101 may be an evolved base station (Evolved Node B, eNB or e-NodeB), and the terminal 102 is a terminal used by a user, such as a walkie-talkie. People may divide multiple terminals 102 into multiple groups according to services performed among multiple terminals 102 in advance, and each group may include multiple terminals 102 . After multiple terminals 102 are divided into multiple groups, the group where the terminal 102 belongs can request access to the base station, and the base station can know the group number of the terminal 102 in advance, so that different groups can initiate calls according to different group numbers. For example, the business carried out between 3 terminals 102 is property management security business, these 3 terminals are divided into one group, and the business carried out between 4 terminals 102 is railway logistics business, these 4 terminals are divided into for a group. In FIG. 1 , 10 terminals 102 covered by a base station 101 are divided into three groups as an example, which are group 1, group 2 and group 3 respectively.
任意一个终端102可以主动对任意一个组内的其他终端102发起呼叫，该组内的其他终端102都是被呼叫方。其中，主动发起呼叫的任意一个终端102与被叫的终端102可以在同一个组，也可以不在同一个组。图1以主动发起呼叫的任意一个终端102与被叫的终端102在同一个组为例。在用户通过主动发起呼叫的终端102讲话时，该组内的使用其他终端102的用户可以同时收听。在进行组呼业务时，作为主动发起呼叫的终端102将数据发送给基站101，基站101将接收的数据发送给参与该组呼业务的其他终端102。Any terminal 102 can initiate a call to other terminals 102 in any group, and all other terminals 102 in the group are called parties. Wherein, any terminal 102 that initiates the call and the called terminal 102 may or may not be in the same group. FIG. 1 takes an example in which any terminal 102 that initiates a call is in the same group as the called terminal 102 . When the user speaks through the terminal 102 that initiates the call, the users using other terminals 102 in the group can listen to it at the same time. When performing a group call service, the terminal 102 that initiates the call sends data to the base station 101, and the base station 101 sends the received data to other terminals 102 participating in the group call service.
基于现有技术中组呼业务存在的资源浪费问题，本发明实施例提供一种调制编码方式的调整方法及基站，在基站101根据预设的MCS的阶数为至少一个组呼业务分配的带宽后，可以根据为至少一个组呼业务分配的带宽的大小来调整MCS的阶数，若为至少一个组呼业务分配的带宽较宽，例如接近基站101所支持的最大带宽，此时基站101可以增大MCS的阶数。基站101根据增大后的MCS的阶数为至少一个组呼业务重新分配带宽，所分配的一个RB所能承载的数据量较多，需分配的RB的数目就较少，从而节省传输资源，提升了系统的容量。Based on the problem of waste of resources in the group call service in the prior art, an embodiment of the present invention provides a method for adjusting the modulation and coding mode and a base station, and the base station 101 allocates bandwidth for at least one group call service according to the preset MCS order Finally, the order of the MCS can be adjusted according to the size of the bandwidth allocated for at least one group call service. If the bandwidth allocated for at least one group call service is relatively wide, such as close to the maximum bandwidth supported by the base station 101, then the base station 101 can Increase the order of MCS. The base station 101 re-allocates the bandwidth for at least one group call service according to the increased order of the MCS, the amount of data that can be carried by an allocated RB is large, and the number of RBs to be allocated is small, thereby saving transmission resources, Increased system capacity.
以下结合说明书附图介绍本发明实施例提供的技术方案。The following describes the technical solutions provided by the embodiments of the present invention in conjunction with the drawings in the description.
根据图1所示的通信系统架构图，对本发明一实施例提供一种调制编码方式的调整方法做详细的说明，该实施例是以图1为例，并不限定只能使用在图1所示的系统架构。该调整方法可由基站101执行，请参见图2，该调整方法的流程描述如下：According to the structure diagram of the communication system shown in Figure 1, a method for adjusting the modulation and coding mode provided by an embodiment of the present invention is described in detail. The system architecture shown. The adjustment method can be executed by the base station 101, please refer to FIG. 2, the flow of the adjustment method is described as follows:
S201：基站101根据采用的预设的MCS的阶数为至少一个组呼业务分配带宽，其中，基站101覆盖下的终端102划分为多个组，其中每组包括多个终端102，组呼业务为任意一个终端102与任意一个组内的其他终端102同时进行呼叫的业务；S201: The base station 101 allocates bandwidth for at least one group call service according to the preset MCS order adopted, wherein the terminals 102 under the coverage of the base station 101 are divided into multiple groups, wherein each group includes multiple terminals 102, and the group call service A service in which any terminal 102 makes a call with any other terminal 102 in any group at the same time;
S202：若为至少一个组呼业务分配的带宽大于第一预设带宽，则基站101增大对至少一个组呼业务采用的MCS的阶数。S202: If the bandwidth allocated for the at least one group call service is greater than the first preset bandwidth, the base station 101 increases the order of the MCS used for the at least one group call service.
基站101覆盖了多个组，对于基站101覆盖下的任意一个组，有组呼业务时，基站101就会为该组呼业务分配带宽，如果没有组呼业务，基站101无需为该组呼业务分配带宽。在一个组有组呼业务时，该组会向基站101发送请求消息，该请求消息用于向基站101请求为该组所要进行的组呼业务分配带宽，基站101接收该组发送的请求消息，会为相应的组呼业务分配带宽。基站101是根据采用的MCS的阶数为发送请求消息的每个组分配带宽，也就是为发送请求消息的每个组所要进行的组呼业务分配带宽。通常，基站101预先配置了MCS的阶数，所以基站101可以根据预先配置的MCS的阶数直接为发送请求消息的每个组所要进行的组呼业务分配带宽。The base station 101 covers multiple groups. For any group under the coverage of the base station 101, when there is a group call service, the base station 101 will allocate bandwidth for the group call service. If there is no group call service, the base station 101 does not need to allocate bandwidth for the group call service. Allocate bandwidth. When a group has a group call service, the group will send a request message to the base station 101, and the request message is used to request the base station 101 to allocate bandwidth for the group call service to be performed by the group, and the base station 101 receives the request message sent by the group, Bandwidth will be allocated for the corresponding group call service. The base station 101 allocates bandwidth for each group sending the request message according to the adopted MCS order, that is, allocates bandwidth for the group call service to be performed by each group sending the request message. Usually, the base station 101 pre-configures the order of the MCS, so the base station 101 can directly allocate bandwidth for the group call service to be performed by each group sending the request message according to the pre-configured order of the MCS.
基站101根据预先配置的MCS的阶数为一个组呼业务分配带宽，可以通过分配RB的方式实现，例如，MCS的阶数是6，一个RB的带宽为180kHz，一个组所进行的组呼业务需要的带宽是900kHz，基站101就需要为这个组业务分配5个RB。当然，基站101也可以通过分配资源元素(ResourceElement，RE)的方式为一个组分配带宽，或者通过分配调度块(Scheduling Block，SB)的方式为一个组分配带宽，本发明实施例对基站101通过哪种方式为一个组分配带宽不作限制。The base station 101 allocates bandwidth for a group call service according to the pre-configured MCS order, which can be realized by allocating RBs. For example, the MCS order is 6, and the bandwidth of one RB is 180kHz. The group call service performed by a group The required bandwidth is 900 kHz, and the base station 101 needs to allocate 5 RBs for this group of services. Of course, base station 101 can also allocate bandwidth to a group by allocating resource elements (ResourceElement, RE), or allocate bandwidth to a group by allocating scheduling blocks (Scheduling Block, SB). There is no restriction on which method to allocate bandwidth for a group.
为了保证数据传输的可靠性，通常，基站101预先配置的MCS的阶数较小。而基站101采用越小阶数的MCS为组呼业务分配带宽时，所分配的一个RB能够承载的数据量就越少，所以基站101在采用较小阶数的MCS为组呼业务分配带宽时，就需要分配较多的RB，导致了系统资源的浪费。此时，如果有新的终端102要加入某个组，可能由于基站101的可用资源不足，导致新的终端102无法加入某个组。即基站101可以加入的终端102的数量有限，那么基站101所支持的组呼业务对应的终端102的数量就少了，系统的容量也就少了。In order to ensure the reliability of data transmission, usually, the order of the MCS pre-configured by the base station 101 is relatively small. When the base station 101 uses a smaller order MCS to allocate bandwidth for the group call service, the amount of data that can be carried by an allocated RB is less, so when the base station 101 uses a smaller order MCS to allocate bandwidth for the group call service , it is necessary to allocate more RBs, resulting in a waste of system resources. At this time, if a new terminal 102 wants to join a certain group, the new terminal 102 may not be able to join a certain group due to insufficient available resources of the base station 101 . That is, the number of terminals 102 that can be added to the base station 101 is limited, so the number of terminals 102 corresponding to the group call service supported by the base station 101 is small, and the capacity of the system is also small.
所以本发明实施例中，基站101根据预设的较小阶数的MCS为至少一个组呼业务分配带宽后，还可以适当调整MCS的阶数。例如，基站101适当增大MCS的阶数，以尽量提升系统的容量的，或者，基站适当减小MCS的阶数，以提高数据传输的可靠性。Therefore, in the embodiment of the present invention, after the base station 101 allocates bandwidth for at least one group call service according to the preset MCS with a smaller order, the order of the MCS may be appropriately adjusted. For example, the base station 101 appropriately increases the order of the MCS to increase the capacity of the system as much as possible, or the base station properly reduces the order of the MCS to improve the reliability of data transmission.
从而节省了传输资源，有助于提升系统的容量。Thus, transmission resources are saved, and the capacity of the system is improved.
本发明实施例中，基站101根据采用的预设阶数的MCS为至少一个组呼业务分配带宽后，首先可以判断为至少一个组呼业务分配的带宽是否大于第一预设带宽，若基站101为至少一个组呼业务分配的带宽大于第一预设带宽，则可以认为基站101为至少一个组呼业务分配的带宽接近基站101所支持的最大带宽。其中，第一预设带宽可以根据基站101所支持的最大带宽设置，例如，第一预设带宽可以是基站101所支持的最大带宽的90％，或者80％等。In the embodiment of the present invention, after the base station 101 allocates bandwidth for at least one group call service according to the adopted MCS of the preset order, it can first determine whether the bandwidth allocated for at least one group call service is greater than the first preset bandwidth, if the base station 101 If the bandwidth allocated to the at least one group call service is greater than the first preset bandwidth, it can be considered that the bandwidth allocated to the at least one group call service by the base station 101 is close to the maximum bandwidth supported by the base station 101 . Wherein, the first preset bandwidth may be set according to the maximum bandwidth supported by the base station 101 , for example, the first preset bandwidth may be 90% or 80% of the maximum bandwidth supported by the base station 101 .
若基站101为至少一个组呼业务分配的带宽接近基站101所支持的最大带宽，系统的可用资源较少。那么此时，基站101可以增大对至少一个组呼业务采用的MCS的阶数，从而后续基站101再根据增大后的MCS的阶数为至少一个组呼业务分配带宽，所分配的一个RB所能承载的数据量较多，分配的RB的数目就较少，从而节省了传输资源，有助于提升系统的容量。If the bandwidth allocated by the base station 101 for at least one group call service is close to the maximum bandwidth supported by the base station 101, the available resources of the system are less. Then at this time, the base station 101 can increase the order of the MCS used for at least one group call service, so that the subsequent base station 101 allocates bandwidth for at least one group call service according to the increased order of the MCS, and the allocated one RB The amount of data that can be carried is large, and the number of allocated RBs is small, thereby saving transmission resources and helping to increase the capacity of the system.
然而MCS的阶数越大，数据的传输速率就越大，即同一时间段内，需要传输的数据就越多，而在有限的带宽内，大量的数据容易造成堵塞。也就是说，阶数较大的MCS，只能应用于信道质量较好的终端102。实际上参与每个组呼业务的终端102的信道质量有的较好，有的较差。若是基站101增大对全部的组呼业务采用的MCS的阶数，那么对于信道质量较差的组来说，有可能该组内的终端102根本就接收不到基站101所传输的数据，即无法保证数据传输的可靠性。因此，基站101在增大对至少一个组呼业务采用的MCS的阶数时，可以从至少一个组呼业务中选取所在的组的信道质量较好的组呼业务，再增大对所选取的组呼业务采用的MCS的阶数。这样，对于信道质量较差的组来说，没有增大MCS的阶数，能够保持数据传输的可靠性。对于信道质量较好的组来说，增大MCS的阶数，在保证数据传输的可靠性的同时，还能够达到节省传输资源，提升了系统的容量的效果。However, the larger the order of MCS, the higher the data transmission rate, that is, the more data needs to be transmitted in the same time period, and within the limited bandwidth, a large amount of data is likely to cause congestion. That is to say, the MCS with a larger order can only be applied to terminals 102 with better channel quality. In fact, some of the terminals 102 participating in each group call service have better channel quality and some have poorer channel quality. If the base station 101 increases the order of the MCS used for all group call services, then for groups with poor channel quality, it is possible that the terminals 102 in the group cannot receive the data transmitted by the base station 101 at all, that is, The reliability of data transmission cannot be guaranteed. Therefore, when base station 101 increases the order of MCS adopted for at least one group call service, it can select a group call service with better channel quality in the group from at least one group call service, and then increase the order of the selected MCS. The order of the MCS used by the group call service. In this way, for groups with poor channel quality, the order of the MCS is not increased, and the reliability of data transmission can be maintained. For a group with better channel quality, increasing the order of the MCS can save transmission resources while ensuring the reliability of data transmission and improve the system capacity.
基站101从至少一个组呼业务中选取所在的组的信道质量较好的组呼业务时，可以根据每个组呼业务对应组的CQI的值从大到小的顺序，对组呼业务进行排序，然后选择前M个组呼业务，所选择的M个组呼业务对应组的CQI的值都大于第一阈值的。其中，M为正整数，一个组的CQI的值为一个组包括的多个终端102上报的CQI的值的平均值，第一阈值可以是预先设置的值，若一个组的CQI的值大于第一阈值，则可以认为该组的信道质量较好。When the base station 101 selects a group call service with better channel quality in the group from at least one group call service, it can sort the group call services according to the order of the CQI values of the corresponding groups of each group call service from large to small , and then select the first M group call services, and the CQI values of the corresponding groups of the selected M group call services are all greater than the first threshold. Wherein, M is a positive integer, the CQI value of a group is the average value of the CQI values reported by multiple terminals 102 included in a group, and the first threshold may be a preset value, if the CQI value of a group is greater than the first threshold A threshold, it can be considered that the channel quality of this group is better.
由于一个组的CQI的值是变化的，例如，前一时刻，某个组的CQI的值较大，但是下一时刻，该组的CQI的值较小。如果基站101一次将对M个组呼业务分别采用的M个MCS的阶数增大很多，那么对下一次较小CQI的值的组来说，是无法保证数据传输的可靠性的。因此，基站101增大对M个组呼业务分别采用的MCS的阶数时，所增大的幅度较小，例如，增大MCS的阶数的幅度可以为1，不至于发生太大的变化，无法保证数据传输的可靠性。基站101增大MCS的阶数后，再根据增大后的MCS的阶数对至少一个组呼业务分配带宽，若为至少一个组呼业务分配的带宽仍然大于第一预设带宽，则基站101可以继续增大对所在的组的信道质量较好的组呼业务采用的MCS的阶数，仍然可以将MCS的阶数增大1，以尽量保证数据传输的可靠性，同时提升系统的容量。Since the CQI value of a group changes, for example, at a previous moment, the CQI value of a certain group is relatively large, but at the next moment, the CQI value of this group is relatively small. If the base station 101 greatly increases the orders of the M MCSs used for the M group call services at one time, then the reliability of data transmission cannot be guaranteed for the next group with a smaller CQI value. Therefore, when the base station 101 increases the order of the MCS used for the M group call services, the increase range is relatively small. For example, the increase range of the order of the MCS can be 1, so that there will not be too much change , the reliability of data transmission cannot be guaranteed. After the base station 101 increases the order of the MCS, it allocates bandwidth to at least one group call service according to the increased order of the MCS. If the allocated bandwidth for at least one group call service is still greater than the first preset bandwidth, the base station 101 You can continue to increase the MCS order used for the group call service with better channel quality in the group you are in, and you can still increase the MCS order by 1 to ensure the reliability of data transmission as much as possible and improve the system capacity at the same time.
本发明实施例中，如果基站101为至少一个组呼业务分配的带宽小于或等于第一预设带宽，还可以进一步判断为至少一个组呼业务分配的带宽是否小于第二预设带宽。其中，第二预设带宽小于第一预设带宽，例如，第二预设带宽可以是基站101所支持的最大带宽的50％，或者40％等。如果基站101为至少一个组呼业务分配的带宽小于第二预设带宽，那么此时可以认为系统还有较多的可用资源。在这种情况下，基站101可以适当减小对至少一个组呼业务采用的MCS的阶数，以在系统还存在较多可用资源的前提下，尽量提高数据传输的可靠性。In this embodiment of the present invention, if the bandwidth allocated to at least one group call service by base station 101 is less than or equal to the first preset bandwidth, it may further determine whether the bandwidth allocated to at least one group call service is less than the second preset bandwidth. Wherein, the second preset bandwidth is smaller than the first preset bandwidth, for example, the second preset bandwidth may be 50% or 40% of the maximum bandwidth supported by the base station 101 . If the bandwidth allocated by the base station 101 for at least one group call service is smaller than the second preset bandwidth, it can be considered that the system still has more available resources at this time. In this case, the base station 101 may appropriately reduce the order of the MCS used for at least one group call service, so as to improve the reliability of data transmission as much as possible on the premise that there are still many available resources in the system.
基站101采用越小阶数的MCS为组呼业务分配带宽，所分配的一个RB能够承载的数据量就越少，同一时间段内，需要传输的数据就越少，数据传输成功的几率就越大，因此，较小阶数的MCS更适合应用于信道质量较差的终端102。但是对于信道质量较好的终端102来说，就没有必要减小MCS的阶数，否则数据传输的速率减小，系统的效率也降低了。The base station 101 adopts the MCS with a smaller order to allocate bandwidth for the group call service, the less data volume an allocated RB can carry, the less data needs to be transmitted in the same time period, and the higher the probability of successful data transmission. Therefore, MCS with a smaller order is more suitable for terminal 102 with poor channel quality. But for the terminal 102 with better channel quality, there is no need to reduce the order of the MCS, otherwise the data transmission rate will be reduced, and the system efficiency will also be reduced.
参与每个组呼业务的终端102的信道质量有的较好，有的较差，如果基站101减小对全部的组呼业务采用的MCS的阶数，就会导致数据传输速率降低，从而系统的效率也降低。因此，考虑到存在信道质量较好的组，基站101在减小对至少一个组呼业务采用的MCS的阶数时，可以先从至少一个组呼业务中选取所在的组的信道质量较差的组呼业务，再减小对选取的组呼业务采用的MCS的阶数。这样，对于信道质量较差的组来说，减小MCS的阶数，能够提高数据传输的可靠性。Some of the channel quality of the terminals 102 participating in each group call service are better, and some are poor. If the base station 101 reduces the order of the MCS used for all group call services, the data transmission rate will be reduced, so that the system efficiency is also reduced. Therefore, considering that there is a group with better channel quality, when base station 101 reduces the order of the MCS used for at least one group call service, it may first select a group with poor channel quality from at least one group call service. For the group call service, reduce the order of the MCS used for the selected group call service. In this way, for groups with poor channel quality, reducing the order of the MCS can improve the reliability of data transmission.
基站101从至少一个组呼业务中选取所在的组的信道质量较差的组呼业务时，可以根据每个组呼业务对应组的CQI的值从大到小的顺序，对组呼业务进行排序，然后选择前N个组呼业务，所选择的N个组呼业务对应组的CQI的值都小于第二阈值。其中，N为正整数，一个组的CQI的值为一个组包括的多个终端102上报的CQI的值的平均值，第二阈值可以是预先设置的一个值，若一个组的CQI的值小于第二阈值，则可以认为该组的信道质量较差。When the base station 101 selects a group call service of which the channel quality of the group it belongs to is poor from at least one group call service, it can sort the group call services according to the order of the CQI values of the corresponding groups of each group call service from large to small , and then select the first N group call services, and the CQI values of the groups corresponding to the selected N group call services are all smaller than the second threshold. Wherein, N is a positive integer, the CQI value of a group is the average value of the CQI values reported by multiple terminals 102 included in a group, and the second threshold can be a preset value, if the CQI value of a group is less than second threshold, it can be considered that the channel quality of this group is poor.
由于至少一个组呼业务所在组的CQI的值是变化的，例如，前一时刻，某个组的CQI的值较高，但是下一时刻，该组的CQI的值较小。如果基站101一次将对N个组呼业务采用的MCS的阶数减小很多，那么对于下一时刻较高CQI的值的组来说，也降低了数据传输的速率，从而降低了系统传输数据的效率，这是没有必要的。因此，基站101减小对N个组呼业务采用的MCS的阶数时，所减小的幅度较小，例如，减小MCS的阶数的幅度可以为1，不至于发生太大的变化，尽量避免降低系统传输数据的效率。基站101减小MCS的阶数后，再根据减小后的MCS的阶数对至少一个组呼业务分配带宽，若为至少一个组呼业务分配的带宽仍然小于第二预设带宽，则基站101可以继续减小对所在的组的信道质量较差的组呼业务采用的MCS的阶数，仍然可以将MCS的阶数减小1，以在系统容量较大的同时，尽量提高数据传输的可靠性。Because the CQI value of the group where at least one group call service belongs to changes, for example, the CQI value of a certain group is higher at the previous moment, but the CQI value of the group is smaller at the next moment. If the base station 101 reduces the order of the MCS used for N group call services by a lot, then for the group with a higher CQI value at the next moment, the data transmission rate is also reduced, thereby reducing the system transmission data efficiency, it is not necessary. Therefore, when the base station 101 reduces the order of the MCS used for the N group call services, the reduction range is small. For example, the range of reducing the order of the MCS can be 1, so that there will not be too much change. Try to avoid reducing the efficiency of the system to transmit data. After the base station 101 reduces the order of the MCS, it then allocates bandwidth to at least one group call service according to the reduced order of the MCS. If the bandwidth allocated to at least one group call service is still smaller than the second preset bandwidth, the base station 101 It is possible to continue to reduce the order of MCS used for group call services with poor channel quality in the group, and it is still possible to reduce the order of MCS by 1, so as to improve the reliability of data transmission as much as possible while the system capacity is large. sex.
本发明实施例中，一个组包括的多个终端102上报的CQI的值的平均值具体可以是一个组中处于无线资源控制协议连接(Radio Resource Control Connect，RRC CONNECT)的终端102上报的CQI的值和处于无线资源控制协议空闲(Radio Resource Control Idle，RRC IDLE)状态的终端102上报的CQI的值的平均值。In this embodiment of the present invention, the average value of the CQI values reported by multiple terminals 102 included in a group may specifically be the CQI reported by the terminals 102 in a radio resource control protocol connection (Radio Resource Control Connect, RRC CONNECT) in a group. CQI value and the average value of the CQI value reported by the terminal 102 in the radio resource control protocol idle (Radio Resource Control Idle, RRC IDLE) state.
在LTE系统中，所有终端共享下行信道，一般情况下，在一个组内包括的多个终端102中，有的终端102处于RRC CONNECT状态，有的终端102处于RRC IDLE状态，而基站101针对处于RRC CONNECT状态的终端102制定相应的CQI反馈机制，基站101根据处于RRCCONNECT状态的终端102反馈的CQI的值来分配组呼业务所在组的带宽。但是如果处于RRCIDLE状态的终端102的信道质量很好，基站101仅根据处于RRC CONNECT状态的终端102反馈的CQI的值来分配组呼业务所在组的带宽，显然准确度较小。In the LTE system, all terminals share the downlink channel. Generally, among the multiple terminals 102 included in a group, some terminals 102 are in the RRC CONNECT state, some terminals 102 are in the RRC IDLE state, and the base station 101 is for The terminal 102 in the RRC CONNECT state formulates a corresponding CQI feedback mechanism, and the base station 101 allocates the bandwidth of the group where the group call service belongs to according to the value of the CQI fed back by the terminal 102 in the RRC CONNECT state. However, if the channel quality of the terminal 102 in the RRCIDLE state is very good, the base station 101 only allocates the bandwidth of the group where the group call service belongs to according to the CQI value fed back by the terminal 102 in the RRC CONNECT state, which is obviously less accurate.
因此，本发明实施例中，一个组包括的多个终端102上报的CQI的值的平均值既包括一个组中处于RRC CONNECT状态的终端102上报的CQI的值，又包括处于RRC IDLE状态的终端102上报的CQI的值的平均值，即同时考虑到一个组内的所有终端102的信道质量，根据所有终端102的CQI的值来为至少一个组呼业务分配带宽，以尽量提高分配带宽的准确度。Therefore, in this embodiment of the present invention, the average value of the CQI values reported by multiple terminals 102 included in a group includes both the CQI values reported by the terminals 102 in the RRC CONNECT state in a group and the terminals in the RRC IDLE state The average value of the CQI values reported by 102, that is, considering the channel quality of all terminals 102 in a group at the same time, allocate bandwidth for at least one group call service according to the CQI values of all terminals 102, so as to improve the accuracy of bandwidth allocation as much as possible Spend.
可能的实施方式中，处于RRC IDLE状态的终端102上报的CQI的值的方式可以通过以下方式实现。基站101可以向处于RRC IDLE状态的终端102发送测量指令，该测量指令可以请求处于RRC IDLE状态的终端102测量下行信道的质量。处于RRC IDLE状态的终端102测量后，将CQI的值发送给基站101。为了减轻基站101的负担，若处于RRC IDLE状态的终端102测量的CQI的值大于第三阈值，第三阈值用于指示终端102所在组的信道质量较好，则处于RRC IDLE状态的终端102不向基站101发送测量的CQI的值，此时，基站101可以默认处于RRCIDLE状态的终端102的CQI的值为第三阈值。In a possible implementation manner, the method of the CQI value reported by the terminal 102 in the RRC IDLE state may be implemented in the following manner. The base station 101 may send a measurement instruction to the terminal 102 in the RRC IDLE state, and the measurement instruction may request the terminal 102 in the RRC IDLE state to measure the quality of the downlink channel. The terminal 102 in the RRC IDLE state sends the CQI value to the base station 101 after measurement. In order to reduce the burden on the base station 101, if the value of the CQI measured by the terminal 102 in the RRC IDLE state is greater than the third threshold, the third threshold is used to indicate that the channel quality of the group where the terminal 102 is located is better, then the terminal 102 in the RRC IDLE state does not The measured CQI value is sent to the base station 101. At this time, the base station 101 may default the value of the CQI of the terminal 102 in the RRCIDLE state to the third threshold.
为了更好地理解，下面以基站101预先设置的MCS的阶数是6为例介绍基站101调整MCS的阶数的方法。For a better understanding, the method for adjusting the MCS order by the base station 101 will be introduced below by taking the MCS order preset by the base station 101 as 6 as an example.
基站101配置了初始MCS的阶数，例如MCS的阶数为6。基站101根据该阶数为6的MCS为该组呼业务分配带宽。基站101可以根据当前的MCS值，以及当前需传输该组呼业务的一个RB的大小，确定需为该组呼业务分配的RB的数量。具体地，基站101可以通过查找3GPP TS36.213中的Table 7.1.7.2.1-1，确定为该组呼业务要分配的RB的数量。例如，当前需传输该组呼业务的一个RB的大小为1128bit，MCS的阶数为6，基站101至少需为该组呼业务分配11个RB资源。The base station 101 configures the order of the initial MCS, for example, the order of the MCS is 6. The base station 101 allocates bandwidth for the group call service according to the MCS whose order is 6. The base station 101 may determine the number of RBs to be allocated for the group call service according to the current MCS value and the size of an RB currently required to transmit the group call service. Specifically, the base station 101 may determine the number of RBs to be allocated for the group call service by searching Table 7.1.7.2.1-1 in 3GPP TS36.213. For example, the size of one RB currently required to transmit the group call service is 1128 bits, and the order of the MCS is 6, and the base station 101 needs to allocate at least 11 RB resources for the group call service.
请参见图3，图3是现有技术中MCS的调整方法导致系统容量受限的示意图。如图3所示，基站101已在当前的系统帧号(System Frame Number，SFN)为n的子帧号为0处调度了4组组呼业务：组0～组3，随着组呼业务的增多，例如组40也与基站101建立请求，也被分配在了子帧号为0处进行调度，按照现有技术方法，若组0～组3、组40均对应较小的MCS的阶数，例如6，组0～组3、组40所需的RB总数很容易超过基站101所支持的最大带宽对应的最大的RB数量。当出现这种情况时，现有技术只能将部分组呼业务，例如组40放入下一帧进行调度，例如在SFN＝n+1的子帧号为1处进行调度。这样就导致了调度时延的增大，特别在组呼业务数量增大的情况下，组呼业务的调度时延将大大增大，最终导致了系统的容量受限。Please refer to FIG. 3 . FIG. 3 is a schematic diagram of a system capacity limitation caused by an MCS adjustment method in the prior art. As shown in Figure 3, the base station 101 has scheduled 4 groups of group call services at the subframe number 0 where the current system frame number (System Frame Number, SFN) is n: group 0 to group 3, with the group call service For example, group 40 also establishes a request with base station 101, and is also allocated at subframe number 0 for scheduling. number, for example 6, the total number of RBs required by groups 0 to 3 and group 40 can easily exceed the maximum number of RBs corresponding to the maximum bandwidth supported by the base station 101 . When this happens, the prior art can only put some group call services, such as group 40, into the next frame for scheduling, for example, scheduling at the subframe number 1 where SFN=n+1. This leads to an increase in the scheduling delay, especially when the number of group call services increases, the scheduling delay of the group call service will greatly increase, and finally the capacity of the system is limited.
请参见图4，图4是本发明实施例提供的解决系统容量受限的一种示意图。如图4所示，基站101在SFN＝n+1的子帧号为0处检测到至少一个组呼业务的RB需求总数大于了预设阈值，则对组0～组3按照所在组包括的多个终端102上报的CQI的值的平均值由大到小进行排序。其中，若基站101所支持的最大带宽是20MHz，则该预设阈值可以是100个。基站101可以选取排序后的组0～组3中的前3个组呼业务，例如组0～组2，并对这3个组呼业务采用的MCS的阶数加1，即为7。由于将组0～组2的MCS的阶数增大为7，那么一个RB所承载的数据量变大，基站101为组0～组2分配的RB的数量就少了，从而可以预留出多余的RB资源给组40使用，最终保证了组0～组3、组40所需的RB总数不大于预设阈值，例如100个。与图3所示的方法相比，组40不会放入下一帧进行调度，调度时延不会受到影响，而且组呼容量得到了保证。Please refer to FIG. 4 . FIG. 4 is a schematic diagram of solving system capacity limitation provided by an embodiment of the present invention. As shown in FIG. 4, base station 101 detects that the total number of RB requirements of at least one group call service is greater than the preset threshold at the subframe number 0 of SFN=n+1, and the group 0 to group 3 are included in the group The average values of the CQI values reported by multiple terminals 102 are sorted from large to small. Wherein, if the maximum bandwidth supported by the base station 101 is 20MHz, the preset threshold may be 100. The base station 101 may select the first three group call services in the sorted group 0-group 3, for example, group 0-group 2, and add 1 to the order of the MCS adopted by these three group call services, which is 7. Since the order of the MCS of group 0 to group 2 is increased to 7, the amount of data carried by one RB becomes larger, and the number of RBs allocated by base station 101 to group 0 to group 2 is reduced, so that redundant The RB resources of the group 40 are used to ensure that the total number of RBs required by groups 0 to 3 and group 40 is not greater than a preset threshold, for example, 100. Compared with the method shown in Fig. 3, the group 40 will not be scheduled in the next frame, the scheduling delay will not be affected, and the group call capacity is guaranteed.
请参见图5，图5是本发明实施例提供的解决系统容量受限的一种示意图。如图5所示，基站101在SFN＝n中子帧号为0处对组0～组3采用的MCS的阶数为15。组呼业务组2、组3在SFN＝n处进行了业务释放，基站101在SFN＝n中子帧号为0处对组2、组3进行了最后一次调度传输。基站101在SFN＝n+1的子帧号为0处检测剩余组呼的RB需求数量，即组0和组1的RB需求总数小于了预设阈值，例如，基站101所支持的最大带宽是20MHz，则该预设阈值可以是50。则对组0～组3按照所在组包括的多个终端102上报的CQI的值的平均值由小到大进行排序。基站101可以选取排序后的组0～组3中的前2个组呼业务，例如所选取的前2个组呼业务为组0～组1，减小对这2个组呼业务采用的MCS的阶数，例如为14。如果此时，基站101确定组0～组1所需的RB需求总数仍小于50个，则继续将MCS的阶数减1，直到组0和组1的RB需求总数不小于50个，例如，基站101最终配置MCS的阶数为7。可见，在组呼业务的数量减少时，基站101通过适当减小MCS的阶数的方式，尽可能满足组内所有终端均能够可靠地接受基站101所发送的数据。Please refer to FIG. 5 . FIG. 5 is a schematic diagram of solving system capacity limitation provided by an embodiment of the present invention. As shown in FIG. 5 , the base station 101 adopts an MCS order of 15 for groups 0 to 3 when the subframe number is 0 in SFN=n. The group call service group 2 and group 3 release the service at SFN=n, and the base station 101 performs the last scheduled transmission for group 2 and group 3 at the subframe number 0 in SFN=n. The base station 101 detects the number of RB requirements of the remaining group calls at the subframe number 0 of SFN=n+1, that is, the total number of RB requirements of group 0 and group 1 is less than the preset threshold, for example, the maximum bandwidth supported by the base station 101 is 20MHz, then the preset threshold may be 50. Then, groups 0 to 3 are sorted according to the average value of the CQI values reported by the multiple terminals 102 included in the group from small to large. The base station 101 can select the first two group call services in the sorted group 0 to group 3, for example, the selected first two group call services are group 0 to group 1, and reduce the MCS used for these two group call services The order of , for example 14. If at this time, the base station 101 determines that the total number of RB requirements required by groups 0 to 1 is still less than 50, then continue to decrease the order of the MCS by 1 until the total number of RB requirements for groups 0 and 1 is not less than 50, for example, The base station 101 finally configures the order of the MCS to be 7. It can be seen that when the number of group call services decreases, the base station 101 appropriately reduces the order of the MCS so that all terminals in the group can reliably receive the data sent by the base station 101 as much as possible.
下面结合附图介绍本发明实施例提供的设备。The following describes the equipment provided by the embodiments of the present invention with reference to the accompanying drawings.
请参见图6，基于同一发明构思，本发明一实施例提供一种基站101，该基站101可以包括分配模块601和调整模块602。其中，分配模块601可以用于根据采用的预设调制编码方式MCS的阶数为至少一个组呼业务分配带宽，其中，基站101覆盖下的终端划分为多个组，其中每组包括多个终端102，组呼业务为任意一个终端102与任意一个组内的其他终端102同时进行呼叫的业务。调整模块602可以用于若为至少一个组呼业务分配的带宽大于第一预设带宽，则基站101增大对至少一个组呼业务采用的MCS的阶数。Referring to FIG. 6 , based on the same inventive concept, an embodiment of the present invention provides a base station 101 , where the base station 101 may include an allocation module 601 and an adjustment module 602 . Wherein, the allocation module 601 can be configured to allocate bandwidth for at least one group call service according to the order of the preset modulation and coding scheme MCS adopted, wherein the terminals under the coverage of the base station 101 are divided into multiple groups, and each group includes multiple terminals 102. The group call service is a service in which any terminal 102 makes a call with other terminals 102 in any group at the same time. The adjustment module 602 may be configured to: if the bandwidth allocated for at least one group call service is greater than the first preset bandwidth, the base station 101 increases the order of the MCS adopted for at least one group call service.
可选的，调整模块602增大对至少一个组呼业务采用的MCS的阶数，包括：Optionally, the adjustment module 602 increases the order of the MCS adopted for at least one group call service, including:
调整模块602从至少一个组呼业务中选取所在的组的下行信道质量指示CQI的值大于第一阈值的M个组呼业务，其中，一个组的CQI的值为一个组包括的多个终端102上报的CQI的值的平均值，M为正整数；The adjustment module 602 selects M group call services whose downlink channel quality indicator CQI value of the group is greater than the first threshold value from at least one group call service, wherein the CQI value of a group is a plurality of terminals 102 included in a group The average value of the reported CQI value, M is a positive integer;
调整模块602增大对M个组呼业务分别采用的M个MCS的阶数。The adjustment module 602 increases the order of the M MCSs respectively used for the M group call services.
可选的，调整模块602还用于：Optionally, the adjustment module 602 is also used for:
若为至少一个组呼业务分配的带宽小于或等于第一预设带宽，则调整模块602判断为至少一个组呼业务分配的带宽是否小于第二预设带宽；其中，第二预设带宽小于第一预设带宽；If the bandwidth allocated to at least one group call service is less than or equal to the first preset bandwidth, the adjustment module 602 determines whether the bandwidth allocated to at least one group call service is smaller than the second preset bandwidth; wherein, the second preset bandwidth is smaller than the first preset bandwidth a preset bandwidth;
若为至少一个组呼业务分配的带宽小于第二预设带宽，则调整模块602减小对至少一个组呼业务采用的MCS的阶数。If the bandwidth allocated for at least one group call service is smaller than the second preset bandwidth, the adjustment module 602 reduces the order of the MCS used for the at least one group call service.
可选的，调整模块602减小对至少一个组呼业务采用的MCS的阶数，包括：Optionally, the adjustment module 602 reduces the order of the MCS adopted for at least one group call service, including:
调整模块602从至少一个组呼业务中选取所在的组的下行信道质量指示CQI的值小于第二阈值的N个组呼业务，其中，一个组的CQI的值为一个组包括的多个终端102上报的CQI的值的平均值，N为正整数；The adjustment module 602 selects N group call services whose downlink channel quality indicator CQI value of the group is less than the second threshold value from at least one group call service, wherein the CQI value of a group is a plurality of terminals 102 included in a group The average value of the reported CQI value, N is a positive integer;
调整模块602减小对N个组呼业务分别采用的N个MCS的阶数。The adjustment module 602 reduces the orders of the N MCSs respectively used for the N group call services.
可选的，一个组包括的多个终端102上报的CQI的值的平均值为：Optionally, the average value of the CQI values reported by multiple terminals 102 included in a group is:
一个组中处于无线资源控制协议连接RRC CONNECT状态的终端102上报的CQI的值和处于无线资源控制协议空闲RRC IDLE状态的终端102上报的CQI的值的平均值。An average value of CQI values reported by terminals 102 in RRC CONNECT state and CQI values reported by terminals 102 in RRC IDLE state in a group.
其中，该基站101可以用于执行图2所示的实施例所提供的方法。因此关于该基站101中各功能模块所能够实现的功能，可参考图2所示的实施例中的相应描述，不多赘述。Wherein, the base station 101 may be used to execute the method provided in the embodiment shown in FIG. 2 . Therefore, regarding the functions that can be realized by each functional module in the base station 101, reference may be made to the corresponding description in the embodiment shown in FIG. 2 , and details will not be repeated here.
本发明实施例中，基站根据预设的MCS的阶数为至少一个组呼业务分配的带宽的大小来调整MCS的阶数，若为至少一个组呼业务分配的带宽大于第一预设带宽，那么基站为至少一个组呼业务分配的带宽就较大，可能接近基站所支持的最大带宽，此时基站可以增大MCS的阶数，从而根据增大后的MCS的阶数为至少一个组呼业务重新分配带宽，这样所分配的一个RB所能承载的数据量较多，需分配的RB的数目就较少，从而节省了传输资源，提升了系统的容量。In the embodiment of the present invention, the base station adjusts the MCS order according to the size of the bandwidth allocated for at least one group call service according to the preset MCS order. If the bandwidth allocated for at least one group call service is greater than the first preset bandwidth, Then the base station allocates a large bandwidth for at least one group call service, which may be close to the maximum bandwidth supported by the base station. At this time, the base station can increase the order of the MCS, so that at least one group call service can be allocated according to the order of the increased MCS. The service re-allocates the bandwidth, so that the amount of data that can be carried by an allocated RB is large, and the number of RBs to be allocated is small, thereby saving transmission resources and improving the capacity of the system.
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiments, and details are not repeated here.
在本发明所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：通用串行总线闪存盘(Universal Serial Bus flash disk)、移动硬盘、ROM(Read-Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, server, or network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application. And aforementioned storage medium comprises: Universal Serial Bus flash disk (Universal Serial Bus flash disk), mobile hard disk, ROM (Read-Only Memory, read only memory), RAM (Random Access Memory, random access memory), disk Or various media such as CDs that can store program codes.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.
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| CN201710510407.2AActiveCN107147475B (en) | 2017-06-28 | 2017-06-28 | Modulation coding mode adjusting method and base station |
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| TA01 | Transfer of patent application right | Effective date of registration:20200103 Address after:510663 Shenzhou Road 10, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Applicant after:Jingxin Communication System (China) Co., Ltd. Address before:510663 Luogang District Science City, Guangzhou, Shenzhou Road, No. 10, Guangdong Applicant before:Jingxin Communication System (China) Co., Ltd. Applicant before:Jingxin Communication System (Guangzhou) Co., Ltd. Applicant before:Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant before:TIANJIN COMBA TELECOM SYSTEMS CO., LTD. | |
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