WO2021088496A1

WO2021088496A1 - Method for sending srs resource by means of user equipment, and related apparatus

Info

Publication number: WO2021088496A1
Application number: PCT/CN2020/113245
Authority: WO
Inventors: 马大为
Original assignee: 北京紫光展锐通信技术有限公司
Priority date: 2019-11-07
Filing date: 2020-09-03
Publication date: 2021-05-14
Also published as: CN110855411B; CN110855411A

Abstract

Disclosed is a method for sending an uplink sounding reference signal (SRS) resource by means of a user equipment. The method comprises: a user equipment receiving a media access control (MAC) control element (CE) sent by a network device, wherein the MAC CE comprises: grouping information of the user equipment; the user equipment receiving downlink control information (DCI) sent by the network device, wherein the DCI comprises: a plurality of pieces of SRS scheduling information; and the user equipment acquiring, from the plurality of pieces of SRS scheduling information, an SRS request message of the user equipment according to the grouping information of the user equipment, and sending a corresponding SRS resource according to the SRS request message of the user equipment. The technical solution provided in the present application has the advantage of reducing signaling overheads.

Description

Method and related device for user equipment to send SRS resources

Technical field

This application relates to the field of communication technologies, and in particular to a method and related devices for user equipment to send SRS resources.

Background technique

In a mobile communication network, a base station usually allocates a part of the system bandwidth to a specific UE, that is, a specific frequency area resource is allocated to the UE at a specific time. At this time, if the base station obtains which part of the specific frequency area has better quality, Priority allocation to the UE will make the UE's service quality more guaranteed. In order for the base station to obtain which part of the specific frequency region has better quality, the base station uses SRS (English: Sounding Reference Signal, Chinese: Uplink Sounding Reference Signal) to obtain which part of the specific frequency region has better quality.

Summary of the invention

The embodiments of the present application provide a method and related device for sending SRS resources by user equipment, so that the method can implement SRS resource scheduling for multiple users and can reduce signaling overhead.

In the first aspect, a method for user equipment to send uplink sounding reference signal SRS resources is provided. The method is applied to the user equipment, and the method includes the following steps:

The user equipment receives a media access control element MAC CE sent by a network device, where the MAC CE includes: grouping information of the user equipment;

The user equipment receives the downlink control information DCI sent by the network device, where the DCI includes: multiple SRS scheduling information;

The user equipment obtains the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and sends the corresponding SRS resource according to the SRS request message of the user equipment

In a second aspect, a method for dynamically scheduling multiple user equipment to transmit uplink sounding reference signal SRS resources is provided. The method is applied to a network device, and the method includes the following steps:

The network device sends the media access control element MAC CE to the user equipment, where the MAC CE includes: grouping information of the user equipment; the MAC CE is used to instruct the user equipment to obtain the indication information of the downlink control information DCI, and the indication information is used for Instructing the user equipment to obtain the SRS request message of the user equipment;

The network device sends DCI to the user equipment, where the DCI includes multiple SRS scheduling information.

In a third aspect, a method for sending SRS resources is provided. The method is applied to a communication system. The communication system includes: a network device and a user equipment; the method includes the following steps:

The network device sends a media access control element MAC CE to the user equipment, where the MAC CE includes: grouping information of the user equipment;

The network device sends DCI to the user equipment, where the DCI includes: multiple SRS scheduling information;

The user equipment receives the downlink control information DCI, the user equipment obtains the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and sends it according to the SRS request message of the user equipment The corresponding SRS resource.

In a fourth aspect, a user equipment is provided, and the user equipment includes: a communication unit and a processing unit; wherein,

The communication unit is configured to receive a media access control element MAC CE sent by a network device, where the MAC CE includes: grouping information of the user equipment; receiving downlink control information DCI sent by the network device, the DCI includes: multiple SRS scheduling information;

The processing unit is configured to obtain the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and control the communication unit to send the corresponding SRS resource according to the SRS request message of the user equipment .

In a fifth aspect, a network device is provided, the network device includes: a communication unit,

The communication unit is configured to send a media access control element MAC CE to a user equipment, where the MAC CE includes: grouping information of the user equipment; the MAC CE is used to instruct the user equipment to obtain indication information of downlink control information DCI, The indication information is used to instruct the user equipment to obtain the SRS request message of the user equipment;

The communication unit is further configured to send DCI to the user equipment, where the DCI includes: multiple SRS scheduling information

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the above-mentioned computer-readable storage medium stores a computer program for electronic data exchange, wherein the above-mentioned computer program enables a computer to execute Part or all of the steps described in one aspect, second aspect, or third aspect.

In a seventh aspect, an embodiment of the present application provides a computer program product, wherein the above-mentioned computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the above-mentioned computer program is operable to cause a computer to execute as implemented in this application. Examples include part or all of the steps described in the first aspect, the second aspect, or the third aspect. The computer program product may be a software installation package.

It can be seen that in the embodiments of this application, the technical solution provided by this application uses MAC CE to send the grouping information of user equipment. Compared with RRC signaling, the response time of MAC CE is short. Therefore, the network equipment can quickly realize the response to the UE. Scheduling, reducing signaling overhead.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of a DCI structure;

2 is a schematic flowchart of a method for sending SRS resources provided by an embodiment of the present application;

Figure 2a is a network architecture provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a method for SRS resources provided by an embodiment of the present application;

Figure 3a is a schematic structural diagram of a DCI provided by an embodiment of the present application;

Figure 3b is a schematic structural diagram of another DCI provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a method for SRS resources provided by an embodiment of the present application;

Figure 4a is a schematic structural diagram of a DCI provided by an embodiment of the present application

FIG. 4b is a schematic flowchart of a method for sending SRS resources according to an embodiment of the present application;

FIG. 4c is a schematic structural diagram of a DCI provided by an embodiment of the present application;

FIG. 5 is a block diagram of a functional unit composition of a user equipment provided by an embodiment of the present application;

FIG. 6 is a block diagram of the functional unit composition of a network device provided by an embodiment of the present application.

Detailed ways

The following describes the technical solutions in the embodiments of the present invention clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

There are many application scenarios for the base station to schedule multiple user equipments to send uplink sounding reference signal SRS at the same time. For example, in an application scenario, the configuration complexity of PDCCH (English: physical downlink control channel, Chinese: physical downlink control channel) can be reduced, and PDCCH transmission times to save downlink physical resources; in another application scenario, under the condition of channel reciprocity, multiple user equipments are scheduled to send SRS at the same time for MU (English: multi-user, Chinese: multi-user) data scheduling Perform channel measurement before.

The function of scheduling multiple user equipments to send SRS resources on the PDCCH is as follows:

RRC (English: radio resource control, Chinese: radio resource control) signaling configures RNTI (English: radio network tempory identity, Chinese: radio network temporary identity) for a group of users. The RNTI is used for user grouping; then for a group of users Each user in the SRS configures SRS resources, and associates each SRS resource with a codepoint (Chinese: code point) in the SRS request (Chinese: request) field in DCI (English: downlink control information, Chinese: downlink control information); At the same time, RRC configures the start bit of SRS request in DCI. The configuration diagram is shown in Figure 1. Although this method can configure SRS resources for multiple users of a group of users, it is not flexible enough to pass RRC signaling alone because the response time of RRC signaling is long and cannot be satisfied. Flexible scheduling requirements for multiple users.

Referring to FIG. 2, FIG. 2 provides a method for sending SRS resources, which is implemented under the network architecture shown in FIG. 2a, and the network architecture includes: a network device 20 (such as a base station or an access point) and multiple users Device 21, the multiple user equipments can be a group of users, the multiple user equipments can also be multiple groups of users (the number of user equipments in each group of users can be flexibly configured), and the group of users can include multiple UEs (English : User equipment, Chinese: user equipment), the UE can be a terminal with mobile communication functions such as a smart phone or a smart watch. The method is shown in Figure 2 and includes the following steps:

Step S201: The network device sends a MAC CE (English: medium access control element, Chinese: media access control element) to UE1, where the MAC CE includes: UE1 grouping information;

Step S202: UE1 receives the MAC CE, and obtains the grouping information of UE1;

Step S203: The network device sends DCI to UE1, where the DCI includes: multiple SRS scheduling information;

The foregoing multiple scheduling information may include multiple SRS request messages, and each SRS request message corresponds to one UE of a group of users. Of course, the above multiple scheduling information may also include multiple SRS request messages and multiple bits indicating multiple SRS request messages. The multiple bits may be displayed in the form of bitmap (Chinese: bitmap), of course, other types may also be used. form. The multiple bits indicating multiple SRS request messages include, but are not limited to: one or any combination of the group index number, the SRS resource index list, and the bits indicating whether multiple user equipments are triggered to send SRS resources.

Step S204: UE1 receives the DCI sent by the network device, obtains the SRS request message of UE1 from multiple SRS scheduling information according to the grouping information of UE1, and UE1 sends the corresponding SRS resource according to the SRS request message of UE1.

The technical solution provided by this application sends the grouping information of UE1 through MAC CE, obtains the SRS request message corresponding to UE1 from multiple SRS scheduling information according to the grouping information of UE1, and then sends the corresponding SRS request message according to the SRS request message SRS resources. Compared with RRC signaling, the response time of MAC CE is short, so network equipment can quickly implement fast scheduling of UEs, which increases flexibility, and the use of MAC CE can also reduce signaling overhead.

In the embodiment shown in FIG. 2, the combination of step S201 and step S203 is an embodiment on the network device side, and the combination of step S202 and step S204 is an embodiment on the user equipment side. The combination of step S201, step S202, step S203, and step S204 of the illustrated embodiment is an embodiment of the method for transmitting SRS resources of the communication system.

In an optional embodiment, before step S201, the above method may further include:

Step S200: The network device sends RRC signaling to the UE, where the RRC signaling includes: configuration information required by the UE1 to send the SRS.

An optional solution for the configuration information required by the UE1 to send the SRS may include: the related configuration of the SRS resource of the user equipment and the position of the SRS request message of the user equipment in the SRS resource request message list in the DCI.

An optional solution for the configuration information required by the UE1 to send the SRS may include: the related configuration of the SRS resource of the user equipment and the position of the bit in the DCI that triggers the user equipment in the bitmap.

An optional solution for the configuration information required by the UE1 to send the SRS may include: the related configuration of the SRS resource of the user equipment or the RNTI.

In an optional embodiment of the embodiment shown in FIG. 2, the grouping information of the aforementioned UE1 may include: RNTI.

In an optional embodiment of the embodiment shown in FIG. 2, the grouping information of the aforementioned UE1 may include: a group index of the UE1 and an intra-group index of the UE1.

In an optional solution, the foregoing multiple SRS scheduling information includes: an SRS resource index for UE1 in the SRS resource index list.

In an optional solution, the foregoing multiple SRS scheduling information may include: SRS resource indexes for multiple UEs in the SRS resource index list and bits in a bitmap used to indicate whether multiple UEs are triggered to send SRS resources.

In an optional solution, the foregoing multiple SRS scheduling information may include: an SRS resource index list containing multiple UEs and an intra-group index list of the UEs that are triggered to send SRS resources, and the intra-group index lists are performed in the order of the group index. Sort.

In an optional solution, the user equipment acquiring the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment may specifically include:

UE1 receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the MAC CE, and the PDCCH includes: DCI;

The UE1 obtains the position of the SRS request message of the UE1 in the SRS resource request message list in the RRC signaling, and obtains the SRS request message of the UE1 corresponding to the position from the multiple SRS scheduling information of the DCI.

In an optional solution, the user equipment acquiring the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment specifically includes:

UE1 obtains the position of the trigger bit of UE1 in the RRC signaling in the bitmap, judges that UE1 is triggered to send SRS resources according to the bit value of the position, and determines that UE1 is located among the triggered multiple UEs according to the related configuration of the SRS resource of UE1 The sequence is to determine the position of the SRS request message of the UE1 in the multiple SRS scheduling information according to the sequence, and extract the SRS request message of the user equipment in the position.

UE1 receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the RRC signaling, and the PDCCH includes: DCI;

UE1 obtains the MAC CE group index to determine the position of the group index corresponding to UE1 in the group index list. If UE1 determines that the group index of the position is the same as the group index included in the grouping information of UE1, extract the position corresponding SRS request message.

Referring to Fig. 3, Fig. 3 provides a method for SRS resources. The method is implemented under the network architecture shown in Fig. 2a. The network architecture includes: a network device (such as a base station or an access point) and multiple user equipments, The multiple user equipment is a group of users, and the UE may be a terminal with mobile communication functions such as a smart phone or a smart watch. The method is shown in FIG. 3 and includes the following steps:

Step S300: The network device sends RRC signaling to UE1, where the RRC signaling includes: RNTI_0 and configuration information required for UE1 to send SRS;

Step S301: The network device sends a MAC CE to UE1, and the MAC CE includes: updating RNTI (ie, RNTI_1);

Step S302: UE1 receives the MAC CE and obtains RNTI_1;

Step S303: The network device sends a PDCCH scrambled by RNTI_1 to UE1, where the PDCCH includes DCI, and the DCI includes: multiple SRS scheduling information;

Step S304, UE1 receives the PDCCH scrambled by RNTI_1 through RNTI_1, the PDCCH includes DCI, UE1 determines that the SRS request message of UE1 is in position 1 of the multiple SRS scheduling information according to the configuration information required for UE1 to send SRS, and UE1 extracts position 1 SRS request message (that is, the SRS request message of UE1), UE1 sends the corresponding SRS resource according to the SRS request message of UE1.

The technical solution provided by this application sends the grouping information (RNTI_1) of UE1 through MAC CE. Compared with RRC signaling, the response time of MAC CE is short. Therefore, network equipment can quickly implement UE scheduling and reduce signaling overhead.

The foregoing UE1 determines the position 1 of the SRS request message of the UE1 in the multiple SRS scheduling information according to the configuration information required by the UE1 to send the SRS, and different implementation methods may be implemented according to the configuration information required by different SRSs.

For example, in an optional embodiment, the configuration information required for SRS is: the related configuration of the SRS resource of UE1 (the related configuration may be multiple SRS resources, and each SRS resource is associated with the SRS request field in the DCI When the SRS request message of UE1 in DCI is in position 1 in the SRS resource request message list, the multiple SRS scheduling information is multiple SRS request messages, and UE1 directly extracts the SRS request message corresponding to position 1. , The above-mentioned position 1 can have multiple manifestations. For example, one manifestation can be the start bit of the SRS request message of UE1 (as shown in Figure 1). Of course, in another manifestation, the above-mentioned position 1 can also be used. It is the sequence number of multiple SRS request messages for UE1.

For example, in another optional embodiment, the configuration information required by SRS is: the relevant configuration of the SRS resource of UE1 and the position of the bit in the DCI that triggers UE1 in the bitmap, as shown in FIG. 3b, multiple SRS The scheduling information includes: the related configuration of multiple SRS resources (ie multiple SRS request messages, 4 SRS request messages shown in area 1 of Fig. 3b) and bitmap (shown in area 2 of Fig. 3b), assuming that the UE1 bit is in the bitmap The position in area 2 is position 1 (that is, the first bit of area 2). As shown in Figure 3b, the bit of position 1 is 1, which means that UE1 is triggered to send SRS resources. Then UE1 area 2 determines that position 1 is in the triggered area. The order of each UE (the order is 1), UE1 extracts the first SRS request message among the 4 SRS request messages. In another scheme, as shown in Figure 3b, suppose that the bit of UE1 is at position 6 in the bitmap (that is, the 6th bit of area 2), and the bit at position 6 is 1, then UE1 is from area 2 It is determined that the position 6 is located in the order of the triggered multiple UEs (the order is 3), then the UE1 extracts the third SRS request message among the 4 SRS request messages.

In the technical solution in another embodiment, the configuration information required by multiple SRS can be set to increase the number of configured UEs. See Figure 3a and Figure 3b. As shown in Figure 3a, one UE in one DCI, Regardless of whether the SRS resource is activated or not, it needs to contain 2 bits, that is, if there are 10 UEs, the number of bits occupied by the DCI as shown in FIG. 3a is 20 bits. As shown in Figure 3b, if there are 10 UEs, only UEs with activated SRS resources occupy 3 bits, and UEs with inactive SRS resources occupy 1 bit. If there are 10 UEs and 4 UEs are activated, the number of bits occupied by DCI as shown in Figure 3b is 18 bits. Therefore, the technical solution in another embodiment of the present application can further reduce signaling overhead and improve Configure the number of UEs. Taking 40 bits of DCI as an example, 20 UEs can be realized by adopting the DCI structure shown in Fig. 3a, and 32 UEs can be realized by adopting the DCI structure shown in Fig. 3b.

Referring to Figure 4, Figure 4 provides a method for user equipment to send SRS resources. The method is implemented under the network architecture shown in Figure 2a. The network architecture includes: a network device (such as a base station or an access point) and multiple User equipment, the multiple user equipments are multiple groups of users, and the UE may be a terminal with mobile communication functions such as a smart phone or a smart watch. The method is shown in FIG. 4 and includes the following steps:

Step S400: The network device sends RRC signaling to UE1. The RRC signaling includes: RNTI_0 and multiple SRS resources, and each SRS resource is associated with the code bit of the SRS request field in the DCI;

Step S401: The network device sends a MAC CE to UE1, where the MAC CE includes: the group index of UE1 and the group index of UE1;

Step S402: UE1 receives the MAC CE, and obtains the group index of UE1 and the group index of UE1;

The group index of UE1 may be the index number of the group where UE1 is located, and the group index of UE1 may be the group index number of UE1.

Step S403: The network device sends a PDCCH scrambled by RNTI_0 to UE1, where the PDCCH includes: DCI, and the DCI includes: multiple SRS scheduling information;

Step S404: UE1 receives the DCI of the PDCCH through RNTI_0;

The structure of the above-mentioned DCI may be as shown in FIG. 4a, where the DCI as shown in FIG. 4a may include two areas, the first area is: multiple SRS request messages, and the second area is an index list in the group. As shown in FIG. 4a, the group index of UE1 is 2, and the group index of UE1 is 2.

Step S405: UE1 obtains the position 2 of the group index of UE1 and the group index of UE1 in the group index list. If the group index of this position 2 is the same as the group index of UE1, extract the SRS request message 2 corresponding to position 2. The UE1 uses the SRS request message 2 to send the SRS resource associated with the SRS request message 2.

The implementation method of the above step S405 may specifically include: UE1 determines the position 2 of the group where UE1 is located according to the group index of UE1, and obtains the group index (2) of position 2, if the group index (2) is the same as the group index of UE1, Determine that the SRS request message corresponding to position 2 is the SRS request message of UE1, extract the SRS request message corresponding to position 2 (because multiple SRS request messages are sorted in the order of the group index), extract the SRS request message corresponding to position 2 that is It is the second SRS request message from multiple SRS request messages.

The following uses a practical example to illustrate the implementation method of the embodiment shown in Figure 4. The number of UEs in this method can be four. For the convenience of description, they are UE1, UE2, UE3, and UE4, respectively. Among them, UE1, UE2 They belong to group 1, and UE3 and UE4 belong to group 2. The above-mentioned method for sending SRS resources is shown in Fig. 4b, including:

Step S410: The network equipment sends RRC signaling to UE1, UE2, UE3, and UE4. The RRC signaling includes: RNTI_0 and 2 SRS resources, where SRS resource 1 and SRS resource 2 are respectively associated with SRS request1 and SRS request in DCI. SRS request2.

Step S411: The network device sends a MAC CE 1 to UE1. The MAC CE includes: UE1's group index number (1) and UE1's group index number (1); the network device sends MAC CE 2 to UE3, and the MAC CE 2 includes : UE3's group index number (2) and UE1's group index number (1);

Step S412: The network device sends DCI to UE1, UE2, UE3, and UE4; the specific structure of the DCI is shown in Figure 4c; wherein, the DCI may include: SRS request1 and SRS request2; DCI may also include: the first group index Number (1) and index number (2) in the second group;

Step S413: UE1 determines DCI position 1 according to the group index number (1), obtains the group index number (1) of position 1, and determines the group index number (1) of the position 1 and the group index number of MAC CE1 ( 1) Same, extract SRS request1 corresponding to position 1, and send SRS resource 1 through SRS request1.

Step S414: UE3 determines DCI position 2 according to the group index number (2), obtains the group index number of position 2 (1), and determines the group index number (1) of the position 2 and the group index number of MAC CE 2 (1) Same, extract SRS request2 corresponding to position 2, and send SRS resource 2 through SRS request2.

The technical solution provided by this application sends the group index number and the group index number of UE1 through MAC CE, and the group index number and group index number of UE3 realizes fast skipping of UE. The technical solution of this application can be carried by MAC CE The group index number and the group index number enable UE1 to quickly obtain the SRS request corresponding to UE1 from the DCI, so as to realize the transmission of SRS resources. The above scheme can realize the scheduling of multiple groups of UEs in one DCI, and realize the ability of network equipment The scheduling of the UE is realized quickly, and the signaling overhead is reduced.

Referring to FIG. 5, a user equipment is provided, and the user equipment includes: a communication unit and a processing unit; wherein,

The communication unit 501 is configured to receive a media access control element MAC CE sent by a network device, where the MAC CE includes: grouping information of the user equipment; receiving downlink control information DCI sent by the network device, the DCI includes: multiple SRS scheduling information ；

The processing unit 502 is configured to obtain the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and control the communication unit 501 to send the corresponding SRS resource according to the SRS request message of the user equipment .

The technical solution provided by this application uses MAC CE to send user equipment grouping information. Compared with RRC signaling, the response time of MAC CE is short. Therefore, network equipment can quickly implement UE scheduling and reduce signaling overhead.

In an alternative,

The communication unit 501 is specifically configured to receive the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the MAC CE, where the PDCCH includes: DCI;

The processing unit 502 is specifically configured to obtain the position of the SRS request message of the UE1 in the RRC signaling in the SRS resource request message list, and obtain the SRS request message of the UE1 corresponding to the position from the multiple SRS scheduling information of the DCI.

In an alternative,

The processing unit 502 is specifically configured to obtain the position of the trigger bit of UE1 in the RRC signaling in the bitmap, determine that UE1 is triggered to send SRS resources according to the bit value of the position, and determine that UE1 is located in the triggered SRS resource according to the related configuration of the SRS resource of UE1 According to the sequence among the multiple UEs, the position of the SRS request message of the UE1 in the multiple SRS scheduling information is determined according to the sequence, and the SRS request message of the user equipment in the position is extracted.

In an alternative,

The communication unit 501 is specifically configured to receive the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the RRC signaling, and the PDCCH includes: DCI;

The processing unit 502 is specifically configured to obtain the group index of the MAC CE to determine the position of the group index corresponding to UE1 in the group index list, if UE1 determines that the group index of the position is the same as the group index included in the grouping information of UE1 , Extract the SRS request message corresponding to the location.

Referring to FIG. 6, FIG. 6 provides a network device, the network device includes: a communication unit 601,

The communication unit 601 is configured to send a media access control element MAC CE to a user equipment, where the MAC CE includes: grouping information of the user equipment; the MAC CE is used to instruct the user equipment to obtain indication information of downlink control information DCI, so The indication information is used to instruct the user equipment to obtain the SRS request message of the user equipment;

The communication unit 601 is further configured to send DCI to the user equipment, where the DCI includes multiple SRS scheduling information.

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of the execution process on the method side. It can be understood that, in order to implement the above-mentioned functions, an electronic device includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiment of the present application may divide the electronic device into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any method as recorded in the above method embodiment , The above-mentioned computer includes electronic equipment.

The embodiments of the present application also provide a computer program product. The above-mentioned computer program product includes a non-transitory computer-readable storage medium storing a computer program. The above-mentioned computer program is operable to cause a computer to execute any of the methods described in the above method embodiments. Part or all of the steps of the method. The computer program product may be a software installation package, and the above-mentioned computer includes electronic equipment.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited by the described sequence of actions. Because according to this application, some steps can be performed in other order or at the same time. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device may be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the above-mentioned units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical or other forms.

The units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable memory. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology 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 memory. A number of instructions are included to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the foregoing methods of the various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, abbreviation: ROM), random access device (English: Random Access Memory, abbreviation: RAM), magnetic disk or optical disk, etc.

The embodiments of the application are described in detail above, and specific examples are used in this article to illustrate the principles and implementation of the application. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the application; at the same time, for Those of ordinary skill in the art, based on the ideas of the application, will have changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as limiting the application.

Claims

A method for user equipment to send uplink sounding reference signal SRS resources, characterized in that the method is applied to the user equipment, and the method includes the following steps:

The user equipment receives a media access control element MAC CE sent by a network device, where the MAC CE includes: grouping information of the user equipment;

The user equipment receives the downlink control information DCI sent by the network device, where the DCI includes: multiple SRS scheduling information;

The user equipment obtains the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and sends the corresponding SRS resource according to the SRS request message of the user equipment.
The method according to claim 1, characterized in that, before the user equipment receives the media access control element MAC CE sent by the network device, the method further comprises:

The user equipment receives radio resource control RRC signaling sent by the network equipment, where the RRC signaling includes: configuration information required by the user equipment to send the SRS.
The method of claim 2, wherein:

The configuration information required by the user equipment to send the SRS includes: the related configuration of the SRS resource of the user equipment and the position of the SRS request message of the user equipment in the SRS resource request message list in the DCI.
The method of claim 2, wherein:

The configuration information required by the user equipment to send the SRS includes: the related configuration of the SRS resource of the user equipment and the position of the bit in the DCI that triggers the user equipment in the bitmap bitmap.
The method of claim 2, wherein:

The configuration information required for the user equipment to send the SRS includes: related configuration of the SRS resource of the user equipment.
The method of claim 2, wherein:

The configuration information required by the SRS also includes: a radio network temporary identifier RNTI.
The method according to claim 3 or 4, wherein:

The grouping information of the user equipment includes: a radio network temporary identifier RNTI.
The method of claim 6, wherein:

The grouping information of the user equipment includes: a group index of the user equipment and an in-group index of the user equipment.
The method of claim 1, wherein:

The multiple SRS scheduling information includes: an SRS resource index for the user equipment in an SRS resource index list.
The method of claim 1, wherein:

The multiple SRS scheduling information includes: SRS resource indexes for multiple user equipments in the SRS resource index list and bits in a bitmap bitmap used to indicate whether multiple user equipments are triggered to send SRS resources.
The method according to claim 8, wherein:

The multiple SRS scheduling information includes: an SRS resource index list containing multiple user equipments and an in-group index list of the user equipment that is triggered to send SRS resources, and the in-group index list is sorted in the order of the group index.
The method according to claim 7, wherein the user equipment acquiring the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment specifically comprises:

The user equipment receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI, where the PDCCH includes: DCI;

The user equipment obtains the position of the SRS request message of the user equipment in the SRS resource request message list of the RRC signaling, and obtains the SRS of the user equipment corresponding to the position from the multiple SRS scheduling information of the DCI Request message.
The method according to claim 7, wherein the user equipment acquiring the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment specifically comprises:

The user equipment receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI, and the PDCCH includes: DCI;

The user equipment obtains the position of the trigger bit of the user equipment in the bitmap of the RRC signaling, determines according to the bit value of the position that the user equipment is triggered to send the SRS resource, and according to the correlation of the SRS resource of the user equipment The configuration determines the sequence in which the user equipment is located in the multiple triggered user equipments, determines the location of the SRS request message of the user equipment in the multiple SRS scheduling information according to the sequence, and extracts the SRS of the user equipment in the location Request message.
The method according to claim 11, wherein the user equipment acquiring the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment specifically comprises:

The user equipment receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the RRC signaling, and the PDCCH includes: DCI;

The user equipment obtains the MAC CE group index to determine the position of the group index corresponding to the user equipment in the group index list, if the user equipment determines the group index of the position and the grouping information of the user equipment The included group indexes are the same, and the SRS request message corresponding to the position is extracted.
A method for dynamically scheduling multiple user equipment to send uplink sounding reference signal SRS resources, characterized in that the method is applied to network equipment, and the method includes the following steps:

The network device sends the media access control element MAC CE to the user equipment, where the MAC CE includes: grouping information of the user equipment; the MAC CE is used to instruct the user equipment to obtain the indication information of the downlink control information DCI, and the indication information is used for Instructing the user equipment to obtain the SRS request message of the user equipment;

The network device sends DCI to the user equipment, where the DCI includes multiple SRS scheduling information.
The method of claim 15, wherein:

The radio resource control RRC signaling sent by the network equipment to the user equipment, where the RRC signaling includes: configuration information required by the user equipment to send the SRS.
The method of claim 16, wherein:

The configuration information required by the user equipment to send the SRS includes: related configuration of the SRS resource of the user equipment, and the position of the SRS resource request message of the user equipment in the SRS resource request message list in the DCI.
The method of claim 16, wherein:

The configuration information required for the user equipment to send the SRS includes: the related configuration of the SRS resource of the user equipment and the position of the bit in the DCI that triggers the user equipment in the bitmap bitmap.
The method of claim 16, wherein:

The configuration information required for the user equipment to send the SRS includes: related configuration of the SRS resource of the user equipment.
The method of claim 16, wherein:

The configuration information required by the user equipment to send the SRS further includes: the radio network temporary identifier RNTI.
The method according to claim 3 or 4, wherein:

The grouping information of the user equipment includes: a radio network temporary identifier RNTI.
The method of claim 21, wherein:

The grouping information of the user equipment includes: a group index of the user equipment and an in-group index of the user equipment.
The method of claim 15, wherein:

The multiple SRS scheduling information includes: SRS resource index lists of multiple user equipments including the user equipment.
The method of claim 15, wherein:

The multiple SRS scheduling information includes: SRS resource indexes for multiple user equipments in an SRS resource index list and a bitmap bitmap, the bitmap is used to indicate whether multiple user equipments are triggered to send SRS resources, and the SRS resources The SRS resource index in the index list corresponds to the user equipment that triggers the sending of the SRS resource in the bitmap in a one-to-one order.
The method of claim 16, wherein:

The multiple SRS scheduling information includes: an SRS resource index list containing multiple user equipments and an in-group index list of the user equipment that is triggered to send SRS resources, and the in-group index list is sorted in the order of the group index.
A method for sending SRS resources, characterized in that the method is applied to a communication system, and the communication system includes: a network device and a user equipment; the method includes the following steps:

The network device sends a media access control element MAC CE to the user equipment, where the MAC CE includes: grouping information of the user equipment;

The network device sends DCI to the user equipment, where the DCI includes: multiple SRS scheduling information;

The user equipment receives the downlink control information DCI, the user equipment obtains the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and sends it according to the SRS request message of the user equipment The corresponding SRS resource.
A user equipment, characterized in that, the user equipment includes: a communication unit and a processing unit; wherein,

The communication unit is configured to receive a media access control element MAC CE sent by a network device, where the MAC CE includes: grouping information of the user equipment; receiving downlink control information DCI sent by the network device, the DCI includes: multiple SRS scheduling information;

The processing unit is configured to obtain the SRS request message of the user equipment from the multiple SRS scheduling information according to the grouping information of the user equipment, and control the communication unit to send the corresponding SRS resource according to the SRS request message of the user equipment .
A network device, characterized in that, the network device includes: a communication unit,

The communication unit is configured to send a media access control element MAC CE to a user equipment, where the MAC CE includes: grouping information of the user equipment; the MAC CE is used to instruct the user equipment to obtain indication information of downlink control information DCI, The indication information is used to instruct the user equipment to obtain the SRS request message of the user equipment;

The communication unit is further configured to send DCI to the user equipment, where the DCI includes: multiple SRS scheduling information.
A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method according to any one of claims 1-14, and claim 15- The method of any one of 25 or the method of claim 26.
A computer program product, wherein the computer program product comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of claims 1-14 The method described above, the method described in any one of claims 15-25, or the method described in claim 26.