CN110855411B - Method and related device for sending SRS resource by user equipment - Google Patents
Method and related device for sending SRS resource by user equipment Download PDFInfo
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- CN110855411B CN110855411B CN201911083712.3A CN201911083712A CN110855411B CN 110855411 B CN110855411 B CN 110855411B CN 201911083712 A CN201911083712 A CN 201911083712A CN 110855411 B CN110855411 B CN 110855411B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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Abstract
The embodiment of the application discloses a method for sending an uplink Sounding Reference Signal (SRS) resource by user equipment, which comprises the following steps: the user equipment receives a media access control element (MAC CE) sent by network equipment, wherein the MAC CE comprises: grouping information of the user equipment; the user equipment receives downlink control information DCI sent by network equipment, wherein the DCI comprises: a plurality of SRS scheduling information; and the user equipment acquires the SRS request message of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and sends corresponding SRS resources according to the SRS request message of the user equipment. The technical scheme provided by the application has the advantage of reducing signaling overhead.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method for a user equipment to transmit an SRS resource and a related apparatus.
Background
In a mobile communication network, a base station generally allocates a part of a system bandwidth to a specific UE, that is, allocates a specific frequency region resource to the UE at a specific time, and if the base station obtains a better quality of the part of the specific frequency region, the base station preferentially allocates the part of the specific frequency region resource to the UE, so that the service quality of the UE is better guaranteed. In order to obtain which specific frequency region has better quality, the base station obtains the specific frequency region by using an SRS (sounding reference signal, chinese).
Disclosure of Invention
The embodiment of the application provides a method for sending SRS resources by user equipment and a related device, so that the method can realize the scheduling of the SRS resources for multiple users and can reduce the signaling overhead.
In a first aspect, a method for a user equipment to transmit an uplink Sounding Reference Signal (SRS) resource is provided, where 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 network equipment, wherein the MAC CE comprises: grouping information of the user equipment;
the user equipment receives downlink control information DCI sent by network equipment, wherein the DCI comprises: a plurality of SRS scheduling information;
the user equipment acquires SRS request information of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and sends corresponding SRS resources according to the SRS request information of the user equipment
In a second aspect, a method for dynamically scheduling multiple user equipments to transmit SRS resources is provided, where the method is applied to a network equipment, and the method includes the following steps:
the network equipment sends a media access control element (MAC CE) to user equipment, wherein the MAC CE comprises: grouping information of the user equipment; the MAC CE is used for indicating the user equipment to acquire indication information of Downlink Control Information (DCI), and the indication information is used for indicating the user equipment to acquire an SRS request message of the user equipment;
the network equipment sends DCI to the user equipment, wherein the DCI comprises: a plurality of SRS scheduling information.
In a third aspect, a method for sending SRS resource is provided, where the method is applied to a communication system, and the communication system includes: a network device and a user device; the method comprises the following steps:
the network equipment sends a media access control element (MAC CE) to user equipment, wherein the MAC CE comprises: grouping information of the user equipment;
the network equipment sends DCI to the user equipment, wherein the DCI comprises: a plurality of SRS scheduling information;
and the user equipment receives Downlink Control Information (DCI), acquires the SRS request message of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and sends corresponding SRS resources according to the SRS request message of the user equipment.
In a fourth aspect, a user equipment is provided, the user equipment comprising: a communication unit and a processing unit; wherein the content of the first and second substances,
a communication unit, 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 network equipment, wherein the DCI comprises: a plurality of SRS scheduling information;
and the processing unit is used for acquiring the SRS request message of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and controlling the communication unit to transmit corresponding SRS resources according to the SRS request message of the user equipment.
In a fifth aspect, a network device is provided, the network device comprising: a communication unit for communicating with the mobile station via the wireless 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 for indicating the user equipment to acquire indication information of Downlink Control Information (DCI), and the indication information is used for indicating the user equipment to acquire an SRS request message of the user equipment;
the communication unit is further configured to transmit DCI to a 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, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform some or all of the steps described in the first aspect, the second aspect, or the third aspect of the embodiments of the present application.
In a seventh aspect, this application embodiment provides a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first, second, or third aspect of this application embodiment. The computer program product may be a software installation package.
It can be seen that, in the embodiment of the present application, the technical solution provided by the present application sends the packet information of the user equipment through the MAC CE, and the response time of the MAC CE is short compared with the RRC signaling, so that the network equipment can rapidly implement scheduling for the UE, and reduce the signaling overhead.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of DCI;
fig. 2 is a flowchart illustrating a method for SRS resource transmission according to an embodiment of the present application;
FIG. 2a is a network architecture provided by an embodiment of the present application;
fig. 3 is a flowchart illustrating a method for SRS resource according to an embodiment of the present application;
fig. 3a is a schematic structural diagram of a DCI provided in an embodiment of the present application;
fig. 3b is a schematic structural diagram of another DCI provided in an embodiment of the present application;
fig. 4 is a flowchart illustrating a method for SRS resource according to an embodiment of the present application;
fig. 4a is a schematic structural diagram of a DCI provided in an embodiment of the present application
Fig. 4b is a schematic flow chart of a method for transmitting SRS resources according to an embodiment of the present application;
fig. 4c is a schematic structural diagram of a DCI provided in an embodiment of the present application;
fig. 5 is a block diagram illustrating functional units of a ue according to an embodiment of the present application;
fig. 6 is a block diagram of functional units of a network device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The base station simultaneously schedules a plurality of user equipment to send the SRS, which has a plurality of application scenes, for example, in one application scene, the configuration complexity of a Physical Downlink Control Channel (PDCCH) can be reduced, the sending times of the PDCCH are reduced, and the downlink physical resources are saved; in another application scenario, under the condition of channel reciprocity, multiple ues are scheduled to transmit SRS for channel measurement before MU (multi-user, chinese) data scheduling.
The function of scheduling multiple user equipment to transmit SRS resources in the PDCCH comprises the following specific scheme:
RRC (radio resource control, Chinese: radio resource control) signaling configures RNTI (radio network temporary identity, Chinese: radio network temporary identity) for user grouping to a group of users; then configuring SRS resources for each user in a group of users, and associating each SRS resource to one codepoint (Chinese: code bit) of an SRS request field in DCI (downlink control information, Chinese: downlink control information); and simultaneously RRC configures the initial bit of the SRS request in the DCI. The configuration schematic diagram is shown in FIG. 1; although this method can configure SRS resources for a plurality of users in a group of users, the flexibility of RRC signaling alone is not sufficient, because the response time of RRC signaling is long, and the requirement of flexible scheduling for a plurality of users cannot be met.
Referring to fig. 2, fig. 2 provides a method for SRS resource transmission, which is implemented under the network architecture shown in fig. 2a, and the network architecture includes: a network device 20 (e.g. a base station or an access point) and a plurality of user equipments 21, where the plurality of user equipments may be a group of users, the plurality of user equipments may also be a plurality of groups of users (the number of user equipments of each group of users may be flexibly configured), the group of users may include a plurality of UEs (user equipments in english: user equipment, chinese: user equipments), the UE may be a terminal having a mobile communication function, such as a smart phone or a smart watch, and the method is shown in fig. 2, and includes the following steps:
step S201, the network device sends a MAC CE (media access control element, chinese) to the UE1, where the MAC CE includes: grouping information of the UE 1;
step S202, the UE1 receives the MAC CE and acquires the grouping information of the UE 1;
step S203, the network device sends DCI to the UE1, where the DCI includes: a plurality of SRS scheduling information;
the plurality of scheduling information may include: a plurality of SRS request messages, each SRS request message corresponding to one UE of a group of users. Of course, the scheduling information may further include: a plurality of SRS request messages and a plurality of bits indicating the plurality of SRS request messages, the plurality of bits may be displayed in the form of bitmap (chinese: bitmap), but may also take other forms. The plurality of bits indicating the plurality of SRS request messages include, but are not limited to: one or any combination of an intra-group index number, an SRS resource index list, a bit indicating whether a plurality of user equipments are triggered to transmit SRS resources.
Step S204, the UE1 receives the DCI transmitted by the network device, acquires the SRS request message of the UE1 from the multiple SRS scheduling information according to the grouping information of the UE1, and the UE1 transmits the corresponding SRS resource according to the SRS request message of the UE 1.
According to the technical scheme provided by the application, the grouping information of the UE1 is sent through the MAC CE, the SRS request message corresponding to the UE1 is obtained from the plurality of SRS scheduling information according to the grouping information of the UE1, and then the SRS resource corresponding to the SRS request message is sent according to the SRS request message. Compared with RRC signaling, the response time of the MAC CE is short, so that the network equipment can rapidly realize rapid scheduling of the UE, the flexibility is increased, and the signaling overhead can be reduced by adopting the MAC CE.
In the embodiment shown in fig. 2, the combination of step S201 and step S203 is an embodiment on the network device side, the combination of step S202 and step S204 is an embodiment on the user device side, and the combination of step S201, step S202, step S203 and step S204 in the embodiment shown in fig. 2 is an embodiment of an SRS resource transmitting method in the communication system.
In an optional embodiment, before step S201, the method may further include:
step S200, the network equipment sends RRC signaling to the UE, wherein the RRC signaling comprises: the UE1 transmits configuration information required for SRS.
In an alternative of the above configuration information required for the UE1 to transmit the SRS, the configuration information may include: the relative 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.
In an alternative of the above configuration information required for the UE1 to transmit the SRS, the configuration information may include: and triggering the position of the bit of the user equipment in the bitmap in the SRS and the related configuration of the SRS resource of the user equipment.
In an alternative of the above configuration information required for the UE1 to transmit the SRS, the configuration information may include: relative configuration of SRS resources of the user equipment or RNTI.
In an alternative embodiment to the embodiment shown in fig. 2, the grouping information of the UE1 may include an RNTI.
In an alternative embodiment to the embodiment shown in fig. 2, the grouping information of the UE1 may include a group index of the UE1 and an intra-group index of the UE 1.
In an alternative, the plurality of SRS scheduling information includes: the SRS resource index for the UE1 in the SRS resource index list.
In an alternative, the plurality of SRS scheduling information may include: and the SRS resource indexes aiming at the plurality of UEs in the SRS resource index list and bits used for indicating whether the plurality of UEs are triggered to transmit the SRS resources in the bitmap.
In an alternative, the plurality of SRS scheduling information may include: the method comprises the steps of including SRS resource index lists of a plurality of UEs and an in-group index list of the UE triggered to send the SRS resource, wherein the in-group index list is sorted according to the sequence of group indexes.
In an alternative, the obtaining, by the user equipment, the SRS request message of the user equipment from the multiple SRS scheduling information according to the packet information of the user equipment may specifically include:
the UE1 receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the MAC CE, wherein the PDCCH comprises: DCI;
the UE1 acquires the position of the SRS request message of the RRC signaling UE1 in the SRS resource request message list, and acquires the SRS request message of the UE1 corresponding to the position from a plurality of SRS scheduling information of the DCI.
In an alternative, the obtaining, by the user equipment, the SRS request message of the user equipment from the multiple SRS scheduling information according to the packet information of the user equipment specifically includes:
the UE1 receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the MAC CE, wherein the PDCCH comprises: DCI;
the UE1 acquires the position of the trigger bit of the UE1 in the bitmap of the RRC signaling, judges whether the UE1 is triggered to send the SRS resource according to the bit value of the position, determines the sequence of the UE1 in the triggered multiple UEs according to the related configuration of the SRS resource of the UE1, determines the positions of the SRS request message of the UE1 in multiple SRS scheduling information according to the sequence, and extracts the SRS request message of the user equipment in the position.
In an alternative, the obtaining, by the user equipment, the SRS request message of the user equipment from the multiple SRS scheduling information according to the packet information of the user equipment specifically includes:
the UE1 receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the RRC signaling, wherein the PDCCH comprises: DCI;
the UE1 obtains the group index of the MAC CE to determine the position of the intra-group index corresponding to the UE1 in the intra-group index list, and if the UE1 determines that the intra-group index of the position is the same as the intra-group index included in the grouping information of the UE1, extracts the SRS request message corresponding to the position.
Referring to fig. 3, fig. 3 provides a method for SRS resource, which is implemented under the network architecture shown in fig. 2a, and the network architecture includes: a network device (e.g. a base station or an access point) and a plurality of user equipments, where the plurality of user equipments are a group of users, and the UE may be a terminal with a mobile communication function, such as a smart phone or a smart watch, as shown in fig. 3, the method includes the following steps:
step S300, the network device sends an RRC signaling to the UE1, where the RRC signaling includes: RNTI _0 and UE1 send configuration information required by SRS;
step S301, the network device sends a MAC CE to the UE1, where the MAC CE includes: update RNTI (i.e., RNTI — 1);
step S302, the UE1 receives the MAC CE and acquires RNTI _ 1;
step S303, the network device sends, to the UE1, a PDCCH scrambled by RNTI _1, where the PDCCH includes DCI including: a plurality of SRS scheduling information;
in step S304, the UE1 receives the PDCCH scrambled by RNTI _1 through RNTI _1, the PDCCH includes DCI, the 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 transmit the SRS, the UE1 extracts the SRS request message in the position 1 (i.e. the SRS request message of the UE 1), and the UE1 transmits the corresponding SRS resource according to the SRS request message of the UE 1.
According to the technical scheme provided by the application, the grouping information (RNTI _1) of the UE1 is sent by the MAC CE, and the response time of the MAC CE is short relative to RRC signaling, so that the network equipment can rapidly realize the scheduling of the UE, and the signaling overhead is reduced.
The 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 transmit the SRS, and may have different implementations according to different SRS configuration information.
For example, in an alternative embodiment, the configuration information required for SRS is: the SRS resource of the UE1 may be configured in a related manner (where the related configuration may be multiple SRS resources, each SRS resource is associated to a code bit of an SRS request field in the DCI) and when the SRS request message of the UE1 in the DCI is at position 1 in the SRS resource request message list, at this time, the multiple SRS scheduling information is the multiple SRS request messages, the UE1 directly extracts the SRS request message corresponding to the position 1, the expression form of the position 1 may be multiple, for example, one expression form may be a start bit of the SRS request message of the UE1 (as shown in fig. 1), and of course, in another expression form, the position 1 may also be a sequence number of the UE1 in the multiple SRS request messages.
For example, in another alternative embodiment, the configuration information required for the SRS is: the relative configuration of SRS resource of UE1 and the position of bit in bitmap in DCI triggering UE1, as shown in fig. 3b, the multiple SRS scheduling information includes: regarding the configuration of multiple SRS resources (i.e. multiple SRS request messages, such as the 4 SRS request messages shown in the area 1 of fig. 3 b) and bitmap (such as the area 2 of fig. 3 b), assuming that the position of the UE1 bit in bitmap is position 1 (i.e. the first bit of the area 2), and as shown in fig. 3b, the position 1 bit is 1, which indicates that the UE1 is triggered to transmit an SRS resource, the UE1 area 2 determines the order (the order is 1) in which the position 1 is located in the triggered multiple UEs, and then the UE1 extracts the 1 st SRS request message from the 4 SRS request messages. In another scheme, as shown in fig. 3b, assuming that the position of the bit of the UE1 in the bitmap is position 6 (i.e. the 6 th bit of the area 2), and the bit of position 6 is 1, the UE1 determines from the area 2 that the position 6 is located in the order of the triggered UEs (the order is 3), and the UE1 extracts the 3 rd SRS request message from the 4 SRS request messages.
In a technical solution in another embodiment, the number of configured UEs can be increased by setting configuration information required by multiple SRSs, see fig. 3a and fig. 3b, as shown in fig. 3a, a UE in one DCI needs to include 2 bits no matter whether its SRS resource is activated, that is, if the SRS resource is 10 UEs, the number of bits occupied by the DCI shown in fig. 3a is 20 bits. As shown in fig. 3b, if there are 10 UEs, only the activated SRS resource occupies 3 bits, and the deactivated SRS resource occupies 1 bit. If it is 10 UEs, if it activates 4 UEs, the DCI shown in fig. 3b occupies the following bits: 18bit, therefore, the technical scheme in another embodiment of the present application can further reduce signaling overhead and increase the number of configured UEs. Taking DCI of 40 bits as an example, 20 UEs may be implemented by using the DCI structure shown in fig. 3a, and 32 UEs may be implemented by using the DCI structure shown in fig. 3 b.
Referring to fig. 4, fig. 4 provides a method for transmitting SRS resources by a user equipment, where the method is implemented under a network architecture as shown in fig. 2a, and the network architecture includes: a network device (e.g., a base station or an access point) and a plurality of user equipments, where the plurality of user equipments are respectively a plurality of groups of users, and the UE may be a terminal having a mobile communication function, such as a smart phone or a smart watch, as shown in fig. 4, the method includes the following steps:
step S400, the network device sends an RRC signaling to the UE1, where the RRC signaling includes: RNTI _0 and a plurality of SRS resources, and associating each SRS resource to a code bit of an SRS request field in the DCI;
step S401, the network device sends the MAC CE to the UE1, where the MAC CE includes: a group index of UE1 and an intra-group index of UE 1;
step S402, the UE1 receives the MAC CE, and acquires the group index of the UE1 and the intra-group index of the UE 1;
the group index of the UE1 may be an index number of a group in which the UE1 is located, and the intra-group index of the UE1 may be an intra-group index number of the UE 1.
Step S403, the network device sends, to the UE1, a PDCCH scrambled by RNTI _0, where the PDCCH includes: DCI, the DCI comprising: a plurality of SRS scheduling information;
step S404, the UE1 receives the DCI of the PDCCH through RNTI _ 0;
the structure of the DCI shown in fig. 4a may be as shown in fig. 4a, where the DCI shown in fig. 4a may include 2 regions, where the first region is: and the second area is an intra-group index list. As shown in FIG. 4a, the group index of the UE1 is 2, and the intra-group index of the UE1 is 2.
Step S405, the UE1 obtains the position 2 of the UE1 group index and the intra-group index of the UE1 in the intra-group index list, extracts the SRS request message 2 corresponding to the position 2 if the intra-group index of the position 2 is the same as the intra-group index of the UE1, and the UE1 transmits the SRS resource associated with the SRS request message 2 by using the SRS request message 2.
The implementation method of the step S405 may specifically include: the UE1 determines the position 2 of the group where the UE1 is located according to the group index of the UE1, obtains the index (2) in the group of the position 2, and determines that the SRS request message corresponding to the position 2 is the SRS request message of the UE1 and extracts the SRS request message corresponding to the position 2 (since the plurality of SRS request messages are sorted according to the order of the group index) if the index (2) in the group is the same as the index in the group of the UE1, the extracted SRS request message corresponding to the position 2 is the 2 nd SRS request message from the plurality of SRS request messages.
The following describes the implementation method of the embodiment shown in fig. 4 by taking a practical example, where the number of UEs in the method may be 4, and for convenience of description, the UEs are UE1, UE2, UE3 and UE4, where UE1 and UE2 belong to group 1, and UE3 and UE4 belong to group 2; as shown in fig. 4b, the method for transmitting SRS resources includes:
step S410, the network device sends RRC signaling to the UE1, the UE2, the UE3 and the UE4, wherein the RRC signaling comprises: RNTI _0 and 2 SRS resources, wherein SRS resource 1 and SRS resource 2 are respectively associated with SRS request1 and SRS request2 in the SRS request in the DCI.
Step S411, the network device sends MAC CE1 to UE1, where the MAC CE includes: group index (1) for UE1 and intra-group index (1) for UE 1; the network device sends MAC CE 2 to UE3, MAC CE 2 including: group index (2) for UE3 and intra-group index (1) for UE 1;
step S412, the network equipment sends DCI to UE1, UE2, UE3 and UE 4; the specific structure of the DCI is shown in fig. 4 c; wherein the DCI may include: SRS request1 and SRS request 2; the DCI may further include: a first set of inner index numbers (1) and a second set of inner index numbers (2);
step S413, the UE1 determines the DCI position 1 according to the group index (1), acquires the intra-group index (1) at the position 1, determines that the intra-group index (1) at the position 1 is the same as the intra-group index (1) of the MAC CE1, extracts the SRS request1 corresponding to the position 1, and transmits the SRS resource 1 through the SRS request 1.
Step S414, the UE3 determines the DCI position 2 according to the group index (2), acquires the intra-group index (1) of the position 2, determines that the intra-group index (1) of the position 2 is the same as the intra-group index (1) of the MAC CE 2, extracts the SRS request2 corresponding to the position 2, and transmits the SRS resource 2 through the SRS request 2.
According to the technical scheme, the MAC CE is used for sending the group index number and the intra-group index number of the UE1, the group index number and the intra-group index number of the UE3 realize quick skip of the UE, the UE1 can quickly acquire the SRS request corresponding to the UE1 from the DCI through the group index number and the intra-group index number carried by the MAC CE, the SRS resource sending is realized, the scheduling of multiple groups of UE in one DCI can be realized through the scheme, the scheduling of the UE can be quickly realized by network equipment, and the signaling overhead is reduced.
With reference to fig. 5, there is provided a user equipment comprising: a communication unit and a processing unit; wherein the content of the first and second substances,
a communication unit 501, 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 network equipment, wherein the DCI comprises: a plurality of SRS scheduling information;
a processing unit 502, configured to obtain an SRS request message of the user equipment from the multiple SRS scheduling information according to the group information of the user equipment, and control the communication unit 501 to transmit corresponding SRS resources according to the SRS request message of the user equipment.
According to the technical scheme, the grouping information of the user equipment is sent through the MAC CE, and compared with RRC signaling, the response time of the MAC CE is short, so that the network equipment can rapidly realize the scheduling of the UE, and the signaling overhead is reduced.
In one alternative approach, the system may be configured such that,
a communication unit 501, configured to receive, according to an RNTI in the MAC CE, the PDCCH scrambled by the RNTI, where the PDCCH includes: DCI;
the processing unit 502 is specifically configured to acquire a position of an SRS request message of the UE1 in the RRC signaling in the SRS resource request message list, and acquire an SRS request message of the UE1 corresponding to the position from the plurality of SRS scheduling information of the DCI.
In one alternative approach, the system may be configured such that,
a communication unit 501, configured to receive, according to an RNTI in the MAC CE, the PDCCH scrambled by the RNTI, where the PDCCH includes: DCI;
the processing unit 502 is specifically configured to acquire a position of a trigger bit of the UE1 in the bitmap for RRC signaling, determine, according to a bit value of the position, that the UE1 is triggered to transmit an SRS resource, determine, according to a relevant configuration of the SRS resource of the UE1, an order of the UE1 located in the triggered multiple UEs, determine, according to the order, positions of SRS request messages of the UE1 in multiple SRS scheduling information, and extract the SRS request message of the user equipment in the position.
In one alternative approach, the system may be configured such that,
a communication unit 501, configured to receive, according to an RNTI in the RRC signaling, a PDCCH scrambled by the RNTI in a physical downlink control channel, where the PDCCH includes: DCI;
the processing unit 502 is specifically configured to obtain a group index of the MAC CE, determine a position of an intra-group index corresponding to the UE1 in the intra-group index list, and extract the SRS request message corresponding to the position if the UE1 determines that the intra-group index of the position is the same as the intra-group index included in the grouping information of the UE 1.
Referring to fig. 6, fig. 6 provides a network device comprising: a communication unit 601 which is connected to the communication unit,
a communication unit 601, configured to transmit 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 for indicating the user equipment to acquire indication information of Downlink Control Information (DCI), and the indication information is used for indicating the user equipment to acquire an SRS request message of the user equipment;
a communication unit 601, configured to transmit DCI to a user equipment, where the DCI includes: a plurality of SRS scheduling information.
According to the technical scheme, the grouping information of the user equipment is sent through the MAC CE, and compared with RRC signaling, the response time of the MAC CE is short, so that the network equipment can rapidly realize the scheduling of the UE, and the signaling overhead is reduced.
The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, 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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (26)
1. A method for sending an uplink Sounding Reference Signal (SRS) resource by user equipment is characterized in that the method is applied to the user equipment, and the method comprises the following steps:
the user equipment receives a media access control element (MAC CE) sent by network equipment, wherein the MAC CE comprises: grouping information of the user equipment;
the user equipment receives downlink control information DCI sent by network equipment, wherein the DCI comprises: a plurality of SRS scheduling information; the plurality of SRS scheduling information includes: the SRS resource indexes aiming at the plurality of triggering user equipment in the SRS resource index list and bits used for indicating whether the plurality of user equipment are triggered to send the SRS resource in the bitmap;
and the user equipment acquires the SRS request message of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and sends corresponding SRS resources according to the SRS request message of the user equipment.
2. The method according to claim 1, wherein before the user equipment receives the media access control element MAC CE transmitted by the network equipment, the method further comprises:
the method comprises the following steps that user equipment receives Radio Resource Control (RRC) signaling sent by network equipment, wherein the RRC signaling comprises the following steps: the user equipment transmits configuration information required for the SRS.
3. The method of claim 2,
the configuration information required for the user equipment to transmit the SRS comprises: the relative 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.
4. The method of claim 2,
the configuration information required for the user equipment to transmit the SRS comprises: the relative configuration of SRS resources of the user equipment and the position of a bit triggering the user equipment in the DCI in a bitmap are disclosed.
5. The method of claim 2,
the configuration information required for the user equipment to transmit the SRS comprises: related configuration of SRS resources for a user equipment.
6. The method of claim 2,
the configuration information required by the SRS further includes: radio network temporary identity RNTI.
7. The method according to claim 3 or 4,
the grouping information of the user equipment includes: radio network temporary identity RNTI.
8. The method of claim 6,
the grouping information of the user equipment includes: a group index of the user equipment and an intra-group index of the user equipment.
9. The method of claim 8,
the plurality of SRS scheduling information includes: the method comprises the steps of including SRS resource index lists of a plurality of user equipment and an in-group index list of the user equipment triggered to send SRS resources, wherein the in-group index list is sorted according to the sequence of group indexes.
10. The method of claim 7, wherein the step of the UE obtaining the SRS request message of the UE from the plurality of SRS scheduling information according to the packet information of the UE specifically comprises:
the user equipment receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI, and the PDCCH comprises: DCI;
the user equipment acquires the position of the SRS request message of the user equipment in an SRS resource request message list of RRC signaling, and acquires the SRS request message of the user equipment corresponding to the position from a plurality of SRS scheduling information of the DCI.
11. The method of claim 7, wherein the step of the UE obtaining the SRS request message of the UE from the plurality of SRS scheduling information according to the packet information of the UE specifically comprises:
the user equipment receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI, and the PDCCH comprises: DCI;
the method comprises the steps that the user equipment obtains the position of a trigger bit of the user equipment in a bitmap of RRC signaling, the user equipment is judged to be triggered to send SRS resources according to the bit value of the position, the sequence of the user equipment in a plurality of triggered user equipment is determined according to the related configuration of the SRS resources of the user equipment, the positions of SRS request messages of the user equipment in a plurality of SRS scheduling information are determined according to the sequence, and the SRS request messages of the user equipment at the positions are extracted.
12. The method of claim 9, wherein the step of the ue obtaining the SRS request message of the ue from the plurality of SRS scheduling information according to the packet information of the ue specifically comprises:
the user equipment receives the physical downlink control channel PDCCH scrambled by the RNTI according to the RNTI in the RRC signaling, wherein the PDCCH comprises: DCI;
the user equipment acquires a group index of the MAC CE to determine the position of an intra-group index corresponding to the user equipment in an intra-group index list, and if the user equipment determines that the intra-group index of the position is the same as the intra-group index included in the grouping information of the user equipment, the SRS request message corresponding to the position is extracted.
13. A method for dynamically scheduling a plurality of user equipments to transmit SRS resources of uplink sounding reference signals is characterized in that the method is applied to network equipment, and the method comprises the following steps:
the network equipment sends a media access control element (MAC CE) to user equipment, wherein the MAC CE comprises: grouping information of the user equipment; the MAC CE is used for indicating the user equipment to acquire indication information of Downlink Control Information (DCI), and the indication information is used for indicating the user equipment to acquire an SRS request message of the user equipment;
the network equipment sends DCI to the user equipment, wherein the DCI comprises: a plurality of SRS scheduling information; the plurality of SRS scheduling information includes: and the SRS resource indexes aiming at the plurality of triggering user equipment in the SRS resource index list and a bit used for indicating whether the plurality of user equipment are triggered to transmit the SRS resource in the bitmap.
14. The method of claim 13,
radio resource control, RRC, signaling sent by the network device to the user equipment, where the RRC signaling includes: the user equipment transmits configuration information required for the SRS.
15. The method of claim 14,
the configuration information required for the user equipment to transmit the SRS comprises: the relative 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.
16. The method of claim 14,
the configuration information required for the user equipment to transmit the SRS comprises: the relative configuration of the SRS resource of the user equipment and the position of the bit triggering the user equipment in the DCI in the bitmap are disclosed.
17. The method of claim 14,
the configuration information required for the user equipment to transmit the SRS comprises: related configuration of SRS resources for a user equipment.
18. The method of claim 13,
the configuration information required for the user equipment to transmit the SRS further includes: radio network temporary identity RNTI.
19. The method according to claim 15 or 16,
the grouping information of the user equipment includes: radio network temporary identity RNTI.
20. The method of claim 19,
the grouping information of the user equipment includes: a group index of the user equipment and an intra-group index of the user equipment.
21. The method of claim 13,
and the SRS resource indexes in the SRS resource index list correspond to the user equipment triggering the sending of the SRS resources in the bitmap one by one in sequence.
22. The method of claim 13,
the plurality of SRS scheduling information includes: the method comprises the steps of including SRS resource index lists of a plurality of user equipment and an in-group index list of the user equipment triggered to send SRS resources, wherein the in-group index list is sorted according to the sequence of group indexes.
23. An SRS resource sending method, wherein the method is applied to a communication system, and wherein the communication system comprises: a network device and a user device; the method comprises the following steps:
the network equipment sends a media access control element (MAC CE) to user equipment, wherein the MAC CE comprises: grouping information of the user equipment;
the network equipment sends DCI to the user equipment, wherein the DCI comprises: a plurality of SRS scheduling information; the plurality of SRS scheduling information includes: the SRS resource indexes aiming at the plurality of triggering user equipment in the SRS resource index list and bits used for indicating whether the plurality of user equipment are triggered to send the SRS resource in the bitmap;
and the user equipment receives Downlink Control Information (DCI), acquires the SRS request message of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and sends corresponding SRS resources according to the SRS request message of the user equipment.
24. A user equipment, the user equipment comprising: a communication unit and a processing unit; wherein the content of the first and second substances,
a communication unit, 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 network equipment, wherein the DCI comprises: a plurality of SRS scheduling information; the plurality of SRS scheduling information includes: the SRS resource indexes aiming at the plurality of triggering user equipment in the SRS resource index list and bits used for indicating whether the plurality of user equipment are triggered to send the SRS resource in the bitmap;
and the processing unit is used for acquiring the SRS request message of the user equipment from the plurality of SRS scheduling information according to the grouping information of the user equipment, and controlling the communication unit to transmit corresponding SRS resources according to the SRS request message of the user equipment.
25. A network device, characterized in that the network device comprises: a communication unit for communicating with the mobile station via the wireless 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 for indicating the user equipment to acquire indication information of Downlink Control Information (DCI), and the indication information is used for indicating the user equipment to acquire an SRS request message of the user equipment;
the communication unit is further configured to transmit DCI to a user equipment, where the DCI includes: a plurality of SRS scheduling information; the plurality of SRS scheduling information includes: and the SRS resource indexes aiming at the plurality of triggering user equipment in the SRS resource index list and a bit used for indicating whether the plurality of user equipment are triggered to transmit the SRS resource in the bitmap.
26. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method of any of claims 1-12, the method of any of claims 13-22 or the method of claim 23.
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| CN201911083712.3A CN110855411B (en) | 2019-11-07 | 2019-11-07 | Method and related device for sending SRS resource by user equipment |
| PCT/CN2020/113245 WO2021088496A1 (en) | 2019-11-07 | 2020-09-03 | Method for sending srs resource by means of user equipment, and related apparatus |
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| CN110855411B (en) * | 2019-11-07 | 2021-10-26 | 北京紫光展锐通信技术有限公司 | Method and related device for sending SRS resource by user equipment |
| CN113207323B (en) * | 2020-04-29 | 2022-09-02 | 华为技术有限公司 | Scheduling method, device and system |
| WO2021232277A1 (en) * | 2020-05-20 | 2021-11-25 | Qualcomm Incorporated | Multi-user packet data addressing techniques |
| EP4193534A4 (en) * | 2020-08-05 | 2024-05-08 | Apple Inc | Nr mimo operation enhancement |
| WO2022082805A1 (en) * | 2020-10-23 | 2022-04-28 | 华为技术有限公司 | Communication method and device |
| CN116491086A (en) * | 2020-11-11 | 2023-07-25 | 高通股份有限公司 | Timeline-based transmission of Sounding Reference Signal (SRS) resources |
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