阅读说明：本技术 Csi-rs发送方法、设备及基站 (CSI-RS (channel State information-reference Signal) sending method, equipment and base station ) 是由 罗亚军 李迅 卫超锋 皇甫祯 于 2018-06-20 设计创作，主要内容包括：本申请实施例提供了一种CSI-RS发送方法、设备及基站,所述CSI-RS发送方法,包括：接收小区内每个用户设备UE的能力指示信息；根据所述能力指示信息确定N种传输方案；配置所述N种传输方案对应的CSI-RS复用CSI-RS资源；按照所述N种传输方案中的每种传输方案,向对应UE发送所述CSI-RS资源上承载的相应传输方案对应的CSI-RS。由此可见,本申请实施例的技术方案,在资源受限的条件下,通过复用资源的方式发送不同传输方案对应的CSI-RS,不仅能够兼容多种传输方案,而且还能够提高资源的利用率。(The embodiment of the application provides a CSI-RS sending method, equipment and a base station, wherein the CSI-RS sending method comprises the following steps: receiving capability indication information of each user equipment UE in a cell; determining N transmission schemes according to the capability indication information; configuring CSI-RS multiplexing CSI-RS resources corresponding to the N transmission schemes; and sending the CSI-RS corresponding to the corresponding transmission scheme carried on the CSI-RS resource to the corresponding UE according to each transmission scheme in the N transmission schemes. Therefore, according to the technical scheme of the embodiment of the application, under the condition that resources are limited, the CSI-RSs corresponding to different transmission schemes are sent in a resource multiplexing mode, so that the method and the device can be compatible with various transmission schemes, and the utilization rate of the resources can be improved.)

A method for transmitting channel state information-reference signal (CSI-RS), comprising:

receiving capability indication information of each user equipment UE in a cell;

determining N transmission schemes according to the capability indication information, wherein N is greater than or equal to 2, and the total number of CSI-RSs corresponding to the N transmission schemes is greater than 40;

configuring CSI-RS multiplexing CSI-RS resources corresponding to the N transmission schemes, wherein the CSI-RS resources refer to wireless transmission resources for bearing the CSI-RS corresponding to the N transmission schemes;

and sending the CSI-RS corresponding to the corresponding transmission scheme carried on the CSI-RS resource to the corresponding UE according to each transmission scheme in the N transmission schemes.

The CSI-RS transmitting method according to claim 1, wherein said configuring CSI-RS multiplexing CSI-RS resources corresponding to the N transmission schemes comprises:

configuring time domain resources occupied by the CSI-RS corresponding to each transmission scheme in the N transmission schemes, so that the time domain resources occupied by the CSI-RS corresponding to each transmission scheme are different from the time domain resources occupied by the CSI-RSs corresponding to other transmission schemes; and/or the presence of a gas in the gas,

configuring Resource Blocks (RBs) used by the CSI-RS corresponding to the N transmission schemes in a staggered manner, wherein the total number of occupied Resource Elements (REs) of each used RB is less than or equal to 40; and/or the presence of a gas in the gas,

and configuring code resources for each transmission scheme in the N transmission schemes, so that CSI-RSs of different transmission schemes occupying the same RE are coded according to different code resources.

The CSI-RS transmitting method according to claim 2, wherein the configuring the time domain resources occupied by the CSI-RS corresponding to each of the N transmission schemes, so that the time domain resources occupied by the CSI-RS corresponding to each transmission scheme are different from the time domain resources occupied by the CSI-RS corresponding to other transmission schemes, comprises:

and configuring the subframe offset of the CSI-RS sending period corresponding to each transmission scheme in the N transmission schemes, so that the subframe offset of the CSI-RS sending period corresponding to each transmission scheme is different from the subframe offsets of the CSI-RS sending periods corresponding to other transmission schemes.

The CSI-RS transmitting method according to claim 3, wherein the configuring of the time domain resources occupied by the CSI-RS corresponding to each of the N transmission schemes makes the time domain resources occupied by the CSI-RS corresponding to each transmission scheme different from the time domain resources occupied by the CSI-RS corresponding to other transmission schemes, further comprises:

and configuring the initial sending time of the CSI-RS corresponding to each transmission scheme in the N transmission schemes, so that the initial sending time of the CSI-RS corresponding to each transmission scheme is different from the initial sending time of the CSI-RS corresponding to other transmission schemes.

The CSI-RS transmission method of claim 2, wherein the configuring the CSI-RS interlaces corresponding to the N transmission schemes to use Resource Blocks (RBs) comprises:

determining a starting RB for sending CSI-RS corresponding to the N transmission schemes;

and sequentially configuring the (i + nN) th RBs from the starting RB as the RBs used by the CSI-RS corresponding to the ith transmission scheme in the N transmission schemes, wherein i is greater than or equal to 1 and less than or equal to N, and N is an integer greater than or equal to 0.

The CSI-RS transmission method of claim 2, wherein the configuring the CSI-RS interlaces corresponding to the N transmission schemes to use Resource Blocks (RBs) comprises:

determining a starting RB for sending CSI-RS corresponding to the N transmission schemes;

dividing the CSI-RSs corresponding to the N transmission schemes into m groups, wherein the number of the CSI-RSs contained in the m-1 group is 40, and the number of the CSI-RSs contained in one group is less than or equal to 40;

and sequentially configuring j + nm RB from the starting RB to be the RB corresponding to each group of CSI-RS in the m groups of CSI-RS, wherein j is greater than or equal to 1 and less than or equal to m, and n is an integer greater than or equal to 0.

The CSI-RS transmitting method as claimed in claim 2, wherein when N is an even number, said configuring code resources for each of said N transmission schemes such that CSI-RS of different transmission schemes occupying the same RE are encoded according to different code resources comprises:

grouping the N transmission schemes pairwise to obtain N/2 transmission scheme groups;

respectively configuring a code group corresponding to the N/2 transmission scheme groups, wherein the code group comprises two mutually orthogonal mask sequences, and the two mask sequences are in one-to-one correspondence with the two transmission schemes in the corresponding transmission scheme groups;

and coding the CSI-RS corresponding to each transmission scheme in the N transmission schemes according to the mask in the corresponding mask sequence.

The CSI-RS transmitting method of claim 2, wherein when N is an odd number, said configuring code resources for each of said N transmission schemes such that CSI-RSs of different transmission schemes occupying the same RE are encoded according to different code resources comprises:

adding a virtual transmission scheme with all CSI-RSs being 0;

grouping the N +1 transmission schemes pairwise to obtain (N +1)/2 transmission scheme groups;

configuring a code group corresponding to the (N +1)/2 transmission scheme groups, where the code group includes two mutually orthogonal mask sequences, the (N +1)/2 transmission scheme groups excluding the virtual transmission scheme (N +1)/2-1 transmission scheme groups correspond to two mask sequences in the corresponding code group in a one-to-one manner, and in the transmission scheme group including the virtual transmission scheme, the transmission scheme corresponds to any one mask sequence in the code group;

and coding the CSI-RS corresponding to each transmission scheme in the N transmission schemes according to the mask in the corresponding mask sequence.

The CSI-RS transmitting method as claimed in claim 2, wherein said configuring code resources for each of said N transmission schemes, such that CSI-RS of different transmission schemes occupying the same RE are encoded according to different code resources, comprises:

when the CSI-RS numbers corresponding to the N transmission schemes are different, combining the CSI-RSs of the transmission scheme with the number smaller than the maximum number of the CSI-RSs in the N transmission schemes to obtain Z CSI-RS sequences, wherein the CSI-RS number of Z-1 CSI-RS sequences in the Z CSI-RS sequences is equal to the number of the CSI-RSs with the maximum number of the CSI-RSs in the N transmission schemes, the CSI-RS number of 1 CSI-RS sequence is smaller than or equal to the number of the CSI-RSs with the maximum number of the CSI-RSs in the N transmission schemes, and Z is smaller than or equal to N;

respectively configuring Z mask sequences for the Z CSI-RS sequences;

encoding each of the Z CSI-RS sequences according to a mask in a corresponding mask sequence.

The CSI-RS transmitting method of any one of claims 7 to 9, wherein the corresponding set of transmission scheme group configurations comprises:

when the number of the CSI-RSs corresponding to the N transmission schemes is different, judging whether the transmission scheme with the largest number of the CSI-RSs is one;

if the transmission scheme with the largest number of CSI-RSs is one, configuring the number of masks in the mask sequence to be the target number, wherein the target number is the number of the CSI-RSs with the largest number of CSI-RSs in the N transmission schemes or the number of the CSI-RSs with the largest number of CSI-RSs;

if the transmission scheme with the largest number of CSI-RSs is not one, the number of masks in the code group is configured to be the number of the CSI-RSs with the largest number of CSI-RSs.

The CSI-RS transmitting method of any one of claims 7 to 9, further comprising, after configuring the code group:

and sending each group of masks to the UE corresponding to the corresponding transmission scheme.

A CSI-RS transmission apparatus comprising means for performing the CSI-RS transmission method of any one of claims 1 through 11.

A base station comprising a processor and a memory, wherein:

the memory to store program instructions;

the processor is configured to call and execute the program instructions stored in the memory to cause the base station to perform the CSI-RS transmission method according to any one of claims 1 to 11.

A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the CSI-RS transmission method of any of claims 1 to 11.