CN109474989B - Measurement gap coordination method and device under dual connectivity, storage medium, user equipment and base station - Google Patents
Measurement gap coordination method and device under dual connectivity, storage medium, user equipment and base station Download PDFInfo
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Abstract
A method and device for coordinating measurement gaps under dual connectivity, a storage medium, user equipment and a base station are provided, the method comprises: receiving a first measurement gap and a second measurement gap from a network side, wherein the first measurement gap is configured by a node of a main network, and the second measurement gap is configured by a node of a secondary network; when the duration of the overlapping part of the first measurement gap and the second measurement gap is greater than a preset threshold, sending a gap coordination request message to a network side, wherein the gap coordination request message comprises first indication information used for indicating the overlapping part so as to request to use at least one part of the overlapping part for data transmission; and receiving a gap coordination response message aiming at the gap coordination request message and sent by a network side. According to the technical scheme provided by the invention, the measurement gap can be utilized as much as possible for data transmission, the data rate loss caused by the measurement gap is made up, and the data transmission rate is improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for coordinating measurement gaps in dual connectivity, a storage medium, a user equipment, and a base station.
Background
Currently, a New 5G Radio (NR) standard is under discussion, and the first stage aims to deploy a 5G network, i.e., a non-independent (NSA) mode, via a 4G Long Term Evolution (LTE) network. In this mode, User Equipment (UE) is camped on a 4G Evolved NodeB (eNB), and if data transmission is to be performed, a 4G connection is established first, and then a 5G connection between the UE and the 5G base station (also referred to as a gNB) is established with the assistance of the 4G connection, so that data is transmitted between the UE and an Evolved Core network (EPC) through a 4G and 5G dual connection. After an LTE NR dual Connection (LTE NRDual Connection, abbreviated as EN DC) is established, an eNB is called a Master station (Master Node, abbreviated as MN), and a gNB is called a slave Station (SN).
LTE eNB and NR gbb have Radio Resource Control (RRC) entities respectively configured with their respective Radio measurements, and at the same time, LTE eNB is used as MN, and its RRC entity can also configure NR SN Radio measurements. Thus, in configuring NR related radio measurements, the RRC entities of both LTE eNB and NR gbb need to cooperate with each other. Currently, related schemes are being characterized.
When the 4G and 5G systems measure the pilot frequency (different from the current serving base station frequency), the measurement is completed based on the measurement GAP (i.e. GAP) by the UE. The measurement gap is a time period for interrupting data transmission and performing inter-frequency measurement. In the measurement gap phase, neither the UE nor the network transmit data. Considering the importance of wireless measurements, the measurement gap has a period of 40 milliseconds (i.e., ms) and a period of 80ms under LTE, and the measurement gap is 6ms in each period. Obviously, if at a 40ms period, the transmission rate loss due to the measurement gap would reach 6/40-15%. It can be seen that if the measurement gap can be reduced, the data rate can be greatly improved. However, currently, no relevant NR scheme has proposed more research and discussion results on measurement gaps. If the measurement gap scheme of LTE is followed, a significant data transmission rate loss will certainly increase. Therefore, it is necessary to optimize the measurement gap based on the EN DC dual connection scenario to improve the data transmission rate.
Disclosure of Invention
The technical problem solved by the invention is how to reduce the measurement gap in 5G transmission by using a dual-connection dual-radio frequency structure under an LTE NR dual-connection scene so as to improve the data transmission rate of 5G.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for coordinating measurement gaps in dual connectivity, including: receiving a first measurement gap and a second measurement gap from a network side, wherein the first measurement gap is configured by a node of a main network, and the second measurement gap is configured by a node of a secondary network; when the duration of the overlapping part of the first measurement gap and the second measurement gap is greater than a preset threshold, sending a gap coordination request message to a network side, wherein the gap coordination request message comprises first indication information used for indicating the overlapping part so as to request to use at least one part of the overlapping part for data transmission; and receiving a gap coordination response message aiming at the gap coordination request message and sent by a network side.
Optionally, the coordination method further includes: when the gap coordination response message indicates that the gap coordination request message is accepted, acquiring second indication information used for indicating a coordination part in the gap coordination response message, wherein the coordination part is at least one part of the overlapping part; and in the coordination part, the hardware resources serving the main network are utilized to perform cell measurement of the main network and cell measurement of the auxiliary network, and the hardware resources serving the auxiliary network are utilized to perform data transmission with the nodes of the auxiliary network.
Optionally, the coordination method further includes: performing cell measurement of the primary network using hardware resources serving the primary network in a gap portion of the first measurement gap other than the coordination portion; performing cell measurement of the secondary network using hardware resources serving the secondary network in a gap portion other than the coordination portion in the second measurement gap.
Optionally, in the coordination portion, performing cell measurement of the primary network and cell measurement of the secondary network by using the hardware resource serving the primary network includes: determining a difference between measurement configurations of cell measurements of the primary network and cell measurements of the secondary network; communicating the difference in the measurement configuration to the RRC of the primary network on the user equipment, such that the RRC of the primary network controls cell measurements of the primary network and cell measurements of the secondary network in the coordination portion based on the difference in the measurement configuration.
Optionally, the second indication information includes a start subframe number and an end subframe number of the coordination portion.
Optionally, when the gap coordination response message indicates that the gap coordination request message is rejected, the cell measurement of the primary network is performed using the hardware resources serving the primary network in the first measurement gap, and the cell measurement of the secondary network is performed using the hardware resources serving the secondary network in the second measurement gap.
Optionally, the hardware resource serving the primary network is a radio frequency component serving the primary network, and the hardware resource serving the secondary network is a radio frequency component serving the secondary network.
Optionally, the preset threshold is 1 subframe.
Optionally, the first indication information includes a start subframe number and a stop subframe number of the overlapping portion.
Optionally, the primary network is a 4G network, and the secondary network is a 5G network.
In order to solve the above technical problem, an embodiment of the present invention further provides a method for coordinating measurement gaps in dual connectivity, including: transmitting a first measurement gap and a second measurement gap to a user equipment, the first measurement gap configured by a node of a primary network and the second measurement gap configured by a node of a secondary network; receiving a gap coordination request message sent by the user equipment, wherein the gap coordination request message includes first indication information for indicating an overlapping portion of the first measurement gap and the second measurement gap, the gap coordination request message is used for requesting to use at least one portion of the overlapping portion for data transmission, and the duration of the overlapping portion is greater than a preset threshold; and sending a gap coordination response message aiming at the gap coordination request message.
Optionally, when the gap coordination response message indicates that the gap coordination request message is accepted, the gap coordination response message includes second indication information for indicating a coordination portion, where the coordination portion is at least a part of the overlapping portion, and the coordination method further includes: and in the coordination part, carrying out data transmission with hardware resources serving the auxiliary network in the user equipment through the nodes of the auxiliary network.
Optionally, the second indication information includes a start subframe number and an end subframe number of the coordination portion.
Optionally, the hardware resource serving the auxiliary network is a radio frequency component serving the auxiliary network.
Optionally, the preset threshold is 1 subframe.
Optionally, the first indication information includes a start subframe number and a stop subframe number of the overlapping portion.
Optionally, the primary network is a 4G network, and the secondary network is a 5G network.
To solve the above technical problem, an embodiment of the present invention further provides a measurement gap coordination apparatus under dual connectivity, including: a first receiving module, adapted to receive a first measurement gap and a second measurement gap from a network side, where the first measurement gap is configured by a node of a primary network, and the second measurement gap is configured by a node of a secondary network; a first sending module, configured to send a gap coordination request message to a network side when a duration of an overlapping portion of the first measurement gap and the second measurement gap is greater than a preset threshold, where the gap coordination request message includes first indication information used for indicating the overlapping portion, so as to request to use at least a part of the overlapping portion for data transmission; and the second receiving module is suitable for receiving a gap coordination response message which is sent by a network side and aims at the gap coordination request message.
Optionally, the coordination apparatus further includes: an obtaining module, configured to obtain second indication information used for indicating a coordination portion in the gap coordination response message when the gap coordination response message indicates that the gap coordination request message is accepted, where the coordination portion is at least a part of the overlapping portion; a first measurement module, in the coordination portion, the first measurement module performs cell measurement of the primary network and cell measurement of the secondary network using hardware resources serving the primary network, and performs data transmission with a node of the secondary network using hardware resources serving the secondary network.
Optionally, the coordination apparatus further includes: a second measurement module adapted to perform cell measurements of the primary network using hardware resources serving the primary network in a gap portion of the first measurement gap other than the coordination portion; a third measurement module adapted to perform cell measurements of the secondary network using hardware resources serving the secondary network in a gap portion of the second measurement gap other than the coordination portion.
Optionally, the first measurement module includes: a determination sub-module adapted to determine a difference between measurement configurations of cell measurements of the primary network and cell measurements of the secondary network; a transfer sub-module adapted to transfer the difference in the measurement configuration to the RRC of the primary network on the user equipment, such that the RRC of the primary network controls the cell measurement of the primary network and the cell measurement of the secondary network at the coordination portion based on the difference in the measurement configuration.
Optionally, the second indication information includes a start subframe number and an end subframe number of the coordination portion.
Optionally, the coordination apparatus further includes: a fourth measurement module adapted to perform cell measurements of the primary network using hardware resources serving the primary network at the first measurement gap and to perform cell measurements of the secondary network using hardware resources serving the secondary network at the second measurement gap, when the gap coordination response message indicates that the gap coordination request message is rejected.
Optionally, the hardware resource serving the primary network is a radio frequency component serving the primary network, and the hardware resource serving the secondary network is a radio frequency component serving the secondary network.
Optionally, the preset threshold is 1 subframe.
Optionally, the first indication information includes a start subframe number and a stop subframe number of the overlapping portion.
Optionally, the primary network is a 4G network, and the secondary network is a 5G network.
To solve the above technical problem, an embodiment of the present invention further provides a measurement gap coordination apparatus under dual connectivity, including: a second sending module adapted to send a first measurement gap configured by a node of the primary network and a second measurement gap configured by a node of the secondary network to the user equipment; a third receiving module, adapted to receive a gap coordination request message sent by the ue, where the gap coordination request message includes first indication information used for indicating an overlapping portion of the first measurement gap and the second measurement gap, and the gap coordination request message is used for requesting to use at least a part of the overlapping portion for data transmission, where a duration of the overlapping portion is greater than a preset threshold; a third sending module, adapted to send a gap coordination response message for the gap coordination request message.
Optionally, when the gap coordination response message indicates that the gap coordination request message is accepted, the gap coordination response message includes second indication information for indicating a coordination portion, where the coordination portion is at least a part of the overlapping portion, and the coordination apparatus further includes: and the transmission module is suitable for carrying out data transmission between the node of the auxiliary network and the hardware resource serving the auxiliary network in the user equipment in the coordination part.
Optionally, the second indication information includes a start subframe number and an end subframe number of the coordination portion.
Optionally, the hardware resource serving the auxiliary network is a radio frequency component serving the auxiliary network.
Optionally, the preset threshold is 1 subframe.
Optionally, the first indication information includes a start subframe number and a stop subframe number of the overlapping portion.
Optionally, the primary network is a 4G network, and the secondary network is a 5G network.
To solve the above technical problem, an embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the computer instructions perform any of the steps of the coordination method described above.
In order to solve the above technical problem, an embodiment of the present invention further provides a user equipment, which includes a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes any one of the steps of the coordination method.
In order to solve the above technical problem, an embodiment of the present invention further provides a base station, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes any of the steps of the coordination method.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
in the embodiment of the present invention, a first measurement gap configured by a node (e.g., LTE MN) of a primary network and a second measurement gap configured by a node (e.g., NR SN) of a secondary network are first received from a network side, and a possibility of data transmission using an overlapping portion of the two measurement gaps is determined by comparing an overlapping duration of the first measurement gap and the second measurement gap by a user equipment (i.e., UE). Then, when the duration of the overlapping portion of the first measurement gap and the second measurement gap is greater than a preset threshold, the UE may send a gap coordination request message to the network side to request the network to transmit data by using the overlapping portion of NR and LTE, so as to compensate for data rate loss caused by the measurement gap; the UE includes first indication information for indicating the overlapping part in the sent gap coordination request message to request to use at least one part of the overlapping part for data transmission. And finally, the network can know the starting and stopping positions of the overlapping part after receiving the request message, and the network feeds back a gap coordination response message aiming at the gap coordination request message to the UE so as to inform the UE whether to adopt a measurement gap for data transmission in consideration of the fact that the network is limited by the configuration requirement of the network. The embodiment of the invention can utilize the measurement gap as much as possible to carry out data transmission, thereby improving the data transmission rate.
Further, when the gap coordination response message indicates that the gap coordination request message is accepted, second indication information for indicating a coordination portion in the gap coordination response message is acquired, so that the coordination portion performs cell measurement of the primary network and cell measurement of the secondary network by using the hardware resources serving the primary network, and performs data transmission with the node of the secondary network by using the hardware resources serving the secondary network, thereby ensuring that data transmission is performed by using a measurement gap as much as possible without affecting the cell measurement, and increasing the data transmission rate.
Drawings
Fig. 1 is a schematic diagram of an exemplary application scenario provided in an embodiment of the present invention;
fig. 2 is a flowchart of a method for coordinating measurement gaps on a UE side in dual connectivity according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a scenario of an overlapping portion of a UE negotiating a measurement gap with a network according to a second embodiment of the present invention;
fig. 4 is a flowchart of a method for coordinating measurement gaps on a network side under dual connectivity according to a third embodiment of the present invention;
fig. 5 is a data flow diagram of a measurement gap coordination method under dual connectivity according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a UE-side measurement gap coordination apparatus under dual connectivity according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a network-side measurement gap coordination apparatus under dual connectivity according to a sixth embodiment of the present invention.
Detailed Description
Those skilled in the art understand that, as mentioned in the background, no more technical solutions have been proposed for the measurement Gap (Gap) of NR, and if the LTE measurement Gap is used, the data transmission rate loss is increased, which is not favorable for increasing the 5G rate.
The inventor of the present application has studied and noticed that, in an LTE NR Dual Connection (EN DC) scenario, when an NR measurement gap is configured, RRC entities of an LTE eNB and an NR gNB need to cooperate with each other, and the two entities may configure the same measurement gap for a UE through cooperation. Even if not fitted, there is a possibility that the measurement gaps partially overlap. In an EN DC scenario, a UE may use dual Radio Frequency (RF) components to enable simultaneous connectivity with LTE and NR. If the network LTE eNB and the NR gNB configure the same measurement gap for the UE or the measurement gaps are partially overlapped, and cell measurement that needs to be performed in the NR measurement gap is scheduled to be performed on the LTE RF in consideration of the protocol scalability and the 5G high-rate transmission capability, the NR measurement gap may be used for data transmission, so as to compensate for the data rate loss caused by the measurement gap. However, in an actual network, the UE needs to inform the network of this information, since the network may not know that the NR can transmit data in the original measurement gap, and at this time, the network will not schedule data transmission resources for the UE.
Considering that NR can achieve a higher data transmission rate, the embodiments of the present invention try to perform data transmission of NR using measurement gaps as much as possible. First, a first measurement gap and a second measurement gap are received from a network side, the first measurement gap is configured by a node (such as LTE MN) of a main network, the second measurement gap is configured by a node (such as NR SN) of a secondary network, and the possibility of data transmission is judged by comparing the overlapping duration of the first measurement gap and the second measurement gap through user equipment (namely UE). Then, when the duration of the overlapping portion of the first measurement gap and the second measurement gap is greater than a preset threshold, the UE may send a gap coordination request message to the network side to request the network to transmit data by using the overlapping portion of NR and LTE, so as to compensate for data rate loss caused by the measurement gap; the UE includes first indication information for indicating the overlapping part in the sent gap coordination request message to request to use at least one part of the overlapping part for data transmission. And finally, the network can know the starting and stopping positions of the overlapping part after receiving the request message, and the network feeds back a gap coordination response message aiming at the gap coordination request message to the UE so as to inform the UE whether to adopt a measurement gap for data transmission in consideration of the fact that the network is limited by the configuration requirement of the network. The embodiment of the invention can utilize the measurement gap as much as possible to carry out data transmission, thereby improving the data transmission rate.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the embodiments of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention. In fig. 1, the 5G system 10 in NSA mode includes EPC101, primary network LTE eNB 102, secondary network NR gbb 103, and UE 104. LTE eNB 102 as a primary station (i.e., MN) may be connected to EPC101 through a user plane and a control plane, NR gNB103 as a secondary station (i.e., SN) is connected to EPC101 only through a user plane, and UE104 may implement dual-connection communication with a primary network and a secondary network through a dual-Radio Frequency (RF) component (not shown in the figure).
Fig. 2 is a flowchart of a UE side measurement gap coordination method under dual connectivity according to a first embodiment of the present invention, which may be applied to one side of a user equipment having a resource (e.g., RF component for LTE) serving a primary network and a resource (e.g., RF component for NR) serving a secondary network, where the two resources are independent of each other and may operate simultaneously. The steps of the measurement gap coordination method shown in fig. 2 may include:
step S201: receiving a first measurement gap and a second measurement gap from a network side, wherein the first measurement gap is configured by a node of a main network, and the second measurement gap is configured by a node of a secondary network;
step S202: when the duration of the overlapping part of the first measurement gap and the second measurement gap is greater than a preset threshold, sending a gap coordination request message to a network side, wherein the gap coordination request message comprises first indication information used for indicating the overlapping part so as to request to use at least one part of the overlapping part for data transmission;
step S203: and receiving a gap coordination response message aiming at the gap coordination request message and sent by a network side.
As a non-limiting example, the primary network may be a 4G network, such as an LTE network, and the secondary network may be a 5G network, such as an NR network, as described below.
In particular, the various steps are set forth in detail below in conjunction with fig. 1 and 2. In step S201, the UE104 receives, from the network side, a first measurement gap configured from the LTE eNB 102 and a second measurement gap configured from the NR gNB 103. Since the first gap and the second gap are configured by the node of the primary network and the node of the secondary network, respectively, there may be an overlapping portion or no overlapping portion therebetween, and when overlapping, the overlapping portion may be larger or smaller.
In step S202, the UE104 compares the first measurement gap with the second measurement gap, and sends the gap coordination request message to the NR gNB103 if there is an overlapping portion between the first measurement gap and the second measurement gap and the duration of the overlapping portion is greater than a preset threshold. The gap coordination request message may include first indication information indicating the overlapping portion to request data transmission using at least a part of the overlapping portion. Wherein the preset threshold may be 1 subframe (typically 1 ms). The minimum unit of the overlapping portion may be counted in subframes, and the overlapping area of less than 1 subframe does not count the overlapping portion. In practical applications, a person skilled in the art may change more preset thresholds according to actual needs, for example, the preset threshold may be 2 subframes or 3 subframes. The gap coordination request message may be implemented by means of RRC signaling, for example.
Referring to fig. 3, in particular, the first indication information may include a start subframe number N1 (not shown in fig. 3) and a stop subframe number N2 (not shown in fig. 3) of the overlapping portion 302. Taking an LTE network as an example, assuming that the first measurement gap 301 is 6 subframes (i.e., subframes with reference numbers 0, 1, …, and 5), if the subframes overlap from the 1 st subframe, N1 is 0, if the subframes overlap from the 2 nd subframe, N1 is 1, and so on, if the subframes overlap from the 6 th subframe, N1 is 5. If only 1 subframe overlaps, then N1 is N2. If the measurement gaps are all overlapped, N1 is 0, and N2 is 5, so far, the UE obtains the start subframe number N1 and the stop subframe number N2 of the overlapped part. In fig. 3, the overlapping portion 302 has 5 subframes, which are used as the first indication information, and the NR SN may be requested for data transmission using the overlapping portion 302 indicated by N1 and N2.
With continuing reference to fig. 1 and fig. 2, in step S203, the UE104 receives a gap coordination response message for the gap coordination request message sent by the network side NR gNB 103. Further, when the gap coordination response message indicates that the gap coordination request message is accepted, the UE104 acquires second indication information in the gap coordination response message for indicating a coordination part, where the coordination part is at least a part of the overlapping part; in the coordination portion, the UE104 may perform cell measurement of the primary network and cell measurement of the secondary network by using the hardware resources serving the primary network, and perform data transmission with a node of the secondary network by using the hardware resources serving the secondary network. Wherein, the gap coordination response message can also be implemented by means of RRC signaling.
In conjunction with fig. 1 and 2, if the NR gNB103 accepts to use the overlapping portion for data transmission, the NR gNB103 may add second indication information in the gap coordination response message to indicate a coordination portion determined by the network. To meet the configuration requirements of the network itself, the coordination portion may be modified by the network based on the overlap portion, for example, a part of the overlap portion indicated in the gap coordination request message.
Referring to fig. 3, the second indication information may include a start subframe number N3 (not shown in fig. 3) and a stop subframe number N4 (not shown in fig. 3) of the coordination portion 303, wherein N3 and N4 are calculated in the same manner as N1 and N2. In fig. 3, the coordination portion 303 indicated by N3 and N4 has 3 subframes, that is, the NR gbb 103 may perform data transmission with the UE104 under the coordination portions indicated by N3 and N4.
As a non-limiting example, in conjunction with fig. 1 and 2, UE104 may employ an RF component serving the NR for uplink data transmission. The basic steps of the uplink transmission may include: in the coordinated part of the measurement gap, the UE104 may monitor a Physical Downlink Control Channel (PDCCH for short) according to a configuration of a Discontinuous Reception (DRX) cycle. If the UE104 has uplink data, it may apply for resources based on a Scheduling process, that is, sending a Scheduling Request (SR) and a Buffer Status Report (BSR), and once receiving the uplink resources allocated by the network, the UE104 may transmit the uplink data. Obviously, if the network has downstream data, the downstream data can also be transmitted in the coordination portion 303.
With reference to fig. 1 and fig. 2, in a gap portion of the first measurement gap configured by the LTE eNB 102 except for the coordination portion 303, a resource serving the LTE network, that is, an RF component serving the LTE network, may be utilized to perform cell measurement of the LTE network; in the gap portion other than the coordinating portion 303 in the second measurement gap, cell measurement of the NR network may be performed using resources serving the NR network, that is, RF components serving the NR network.
Further, in the coordinating part 303, cell measurement of the LTE network and cell measurement of the NR network are performed using resources serving the LTE network, that is, an RF component serving the LTE network. With reference to fig. 1 and fig. 2, the step of performing cell measurement in the coordination part 303 may include: the UE104 determines a difference between measurement configurations of cell measurements of the LTE network and cell measurements of the NR network; the difference of the measurement configuration is transferred to the LTE RRC entity of the UE itself, so that the LTE RRC entity controls LTE cell measurement and NR cell measurement based on the difference of the measurement configuration in the coordination portion 303.
Further, if the gap coordination response message indicates that the gap coordination request message is rejected, the first measurement gap and the second measurement gap are still used for measurement in a conventional manner and are no longer used for data transmission. More specifically, cell measurements of the primary network (e.g., LTE network) may be performed using hardware resources (e.g., radio frequency components serving LTE network) serving the primary network in the first measurement gap, and cell measurements of the secondary network (e.g., NR network) may be performed using hardware resources (e.g., radio frequency components serving NR network) serving the secondary network in the second measurement gap.
Fig. 4 is a flowchart of a method for coordinating measurement gaps on a network side under dual connectivity according to a third embodiment of the present invention, where the method can be applied to the network side. The coordination method shown in fig. 4 includes the following steps:
step S401: transmitting a first measurement gap and a second measurement gap to a user equipment, the first measurement gap configured by a node of a primary network and the second measurement gap configured by a node of a secondary network;
step S402: receiving a gap coordination request message sent by the user equipment, wherein the gap coordination request message includes first indication information for indicating an overlapping portion of the first measurement gap and the second measurement gap, the gap coordination request message is used for requesting to use at least one portion of the overlapping portion for data transmission, and the duration of the overlapping portion is greater than a preset threshold;
step S403: and sending a gap coordination response message aiming at the gap coordination request message.
As a non-limiting example, the primary network may be an LTE network and the secondary network may be an NR network.
In conjunction with fig. 1 and fig. 4, specifically, in step S401, the network side (e.g. LTE eNB 102 and NR gNB103) transmits a first measurement gap configured by the primary network LTE eNB 102 and a second measurement gap configured by the secondary network NR gNB103 to the UE 104. Since the first gap and the second gap are configured by the node of the primary network and the node of the secondary network, respectively, there may be an overlapping portion or no overlapping portion therebetween, and when overlapping, the overlapping portion may be larger or smaller.
In step S402, the NR gNB103 receives the gap coordination request message sent by the UE104, and can know, from the first indication information carried in the coordination request message, an overlapping portion of the first measurement gap and the second measurement gap and at least a portion of the overlapping portion that the UE104 desires to use for data transmission. Wherein, the gap coordination request message can be implemented by means of RRC signaling.
Referring to fig. 3, the first indication information may include a start subframe number N1 and a stop subframe number N2 of the overlapping portion 302. Taking an LTE network as an example, assuming that the first measurement gap 301 is 6 subframes (i.e., subframes with reference numbers 0, 1, …, and 5), if the subframes overlap from the 1 st subframe, N1 is 0, if the subframes overlap from the 2 nd subframe, N1 is 1, and so on, if the subframes overlap from the 6 th subframe, N1 is 5. If only 1 subframe overlaps, then N1 is N2. If the measurement gaps are all overlapped, N1 ═ 0 and N2 ═ 5, so far, the UE obtains the starting subframe number N1 and the terminating subframe number N2 of the overlapped part 302. In fig. 3, the overlapping portion 302 has 5 subframes, which are used as the first indication information, and the NR SN may be requested for data transmission using the overlapping portion 302 indicated by N1 and N2. Wherein the duration of the overlapping portion 302 is greater than a preset threshold. The preset threshold may be 1 subframe (typically 1 ms). The minimum unit of the overlapping portion 302 may be counted in subframes, and an overlapping area of less than 1 subframe does not count in the overlapping portion 302. In practical applications, a person skilled in the art may change more preset thresholds according to actual needs, for example, the preset threshold may be 2 subframes or 3 subframes.
In step S403, the network side NR gNB103 transmits a gap coordination response message to the UE104 for the gap coordination request message. Further, when the gap coordination response message indicates that the gap coordination request message is accepted, the gap coordination response message carries second indication information for indicating a coordination portion, and the coordination portion 303 may be at least a part of the overlapping portion 302. In conjunction with fig. 1 and 4, if the NR gNB103 indicates acceptance of data transmission using the overlap portion 302, the NR gNB103 indicates the network-determined coordination portion 303 by adding second indication information in the gap coordination response message. To meet the configuration requirements of the network itself, the coordination portion 303 may be modified by the network based on the overlapping portion, for example, a part of the overlapping portion 302 indicated in the gap coordination request message.
Referring to fig. 3, the second indication information may include a start subframe number N3 and a stop subframe number N4 of the coordination portion 303, where N3 and N4 are calculated in the same manner as N1 and N2. In fig. 3, subframe numbers N3, N4 indicate that the coordination portion 303 has 3 subframes, i.e. the NR gbb 103 may transmit data with the UE104 in the coordination portion 303. Specifically, when the coordinating portion 303 performs data transmission, a person skilled in the art may refer to the transmission method in step S203 in the embodiment shown in fig. 2 with reference to fig. 3 and fig. 4, which is not described herein again.
Further, if the gap coordination response message indicates that the gap coordination request message is rejected, the UE104 may perform cell measurements of the primary network, such as an LTE network, using hardware resources serving the primary network, such as RF components serving the LTE network, at the first measurement gap, and may perform cell measurements of the secondary network, such as an NR network, using hardware resources serving the secondary network, such as RF components serving the NR network, at the second measurement gap.
Fig. 5 is a data flow diagram of a measurement gap coordination method under dual connectivity according to a fourth embodiment of the present invention. With reference to fig. 1 and fig. 5, the measurement gap coordination request message 501 may be sent by the UE104 to the network side (e.g., NR gNB 103); the measurement gap coordination request message 501 may include a start subframe number N1 and a stop subframe number N2 of the overlapping portion. Accordingly, the measurement gap coordination response message 502 may be sent by the network side (e.g., NR gNB103) to the UE 104. The measurement gap coordination response message 502 may include a rejection identification, a starting subframe number N3 and a terminating subframe number N4 of the coordination portion.
Fig. 6 is a schematic structural diagram of a UE-side measurement gap coordination apparatus under dual connectivity according to a fifth embodiment of the present invention, which may be used in a user equipment, for example, integrated in the user equipment or coupled externally to the user equipment. The coordinating device 60 shown in fig. 6 may include a first receiving module 601, a first sending module 602, a second receiving module 603, an obtaining module 604, a first measuring module 605, a second measuring module 606, a third measuring module 607, and a fourth measuring module 608.
Specifically, the first receiving module 601 may receive, from the network side, a first measurement gap configured by a node of the primary network (e.g., LTE MN), and a second measurement gap configured by a node of the secondary network (e.g., NR SN). As a non-limiting example, the primary network may be an LTE network and the secondary network may be an NR network.
Further, when the duration of the overlapping portion of the first measurement gap and the second measurement gap is greater than a preset threshold, the first sending module 602 may send a gap coordination request message to the network side, where the gap coordination request message includes first indication information used for indicating the overlapping portion, so as to request to use at least a part of the overlapping portion for data transmission. Wherein, the preset threshold may be 1 subframe; the first indication information may include a start subframe number and a stop subframe number of the overlapping portion.
Further, the second receiving module 603 may receive a gap coordination response message sent by the network side for the gap coordination request message. Further, when the gap coordination response message indicates that the gap coordination request message is accepted, the obtaining module 604 may obtain second indication information in the gap coordination response message, where the second indication information indicates a coordination portion, and the coordination portion is at least a part of the overlapping portion. Wherein the second indication information may include a start subframe number and a stop subframe number of the coordination portion. Further, in the coordination portion, the first measurement module 605 may perform cell measurement of the primary network (e.g. LTE) and cell measurement of the secondary network (e.g. NR) by using hardware resources serving the primary network, and perform data transmission with a node (e.g. NR SN) of the secondary network by using resources serving the secondary network (e.g. NR).
Further, the coordinating device 60 may further include a second measuring module 606. In a gap portion of the first measurement gap other than the coordination portion, the second measurement module 606 may perform cell measurement of the primary network using resources serving the primary network (e.g., LTE). Further, the coordinating device 60 may further include a third measuring module 607. In the gap portion of the second measurement gap other than the coordination portion, the third measurement module 607 may make cell measurements of the secondary network (e.g., NR) using resources serving the secondary network (e.g., NR).
As a non-limiting example, the first measurement module 605 may include: a determination sub-module 6051 and a delivery sub-module 6052. In conjunction with fig. 1, the determination sub-module 6051 may determine a difference between measurement configurations of cell measurements of the primary network (e.g., LTE) and cell measurements of the secondary network (e.g., NR); the communicating sub-module 6052 may communicate the difference of the measurement configuration to the RRC entity of the primary network (e.g., LTE) of the UE104, so that the RRC entity of the primary network (e.g., LTE) controls the cell measurement of the primary network (e.g., LTE) and the cell measurement of the secondary network (e.g., NR) at the coordinating part based on the difference of the measurement configuration.
Further, the coordinating device 60 may further include a fourth measuring module 608. When the gap coordination response message indicates that the gap coordination request message is rejected, the fourth measurement module 608 may perform cell measurement of the primary network (e.g., LTE) using resources serving the primary network (e.g., LTE), such as RF components (not shown) of the primary network (e.g., LTE), at the first measurement gap, and perform cell measurement of the secondary network (e.g., NR) using resources serving the secondary network (e.g., NR), such as RF components (not shown) serving the secondary network, at the second measurement gap.
Those skilled in the art will understand that the coordinating device 60 of the present embodiment can be used to implement the method solution described in the embodiment of fig. 2. For more details of the operation principle and the operation mode of the measurement gap coordination device 60, reference may be made to the description in fig. 1 to 3 and 5, which are not repeated herein.
Fig. 7 is a schematic structural diagram of a network-side measurement gap coordination apparatus under dual connectivity according to a sixth embodiment of the present invention, where the apparatus may be used on the network side, for example, integrated in a network-side device (e.g., a base station) or externally coupled to the network-side device. The coordinating device 70 shown in fig. 7 may include a second sending module 701, a third receiving module 702, a third sending module 703 and a transmitting module 704.
Specifically, the second sending module 701 may send, to the user equipment, a first measurement gap configured by a node of the primary network and a second measurement gap configured by a node of the secondary network. The primary network may be a 4G network, such as an LTE network, and the secondary network is a 5G network, such as an NR network.
Further, the third receiving module 702 is adapted to receive a gap coordination request message sent by the ue, where the gap coordination request message includes first indication information used for indicating an overlapping portion of the first measurement gap and the second measurement gap, and the gap coordination request message is used for requesting to use at least a part of the overlapping portion for data transmission, where a duration of the overlapping portion is greater than a preset threshold. Wherein, the preset threshold may be 1 subframe; the first indication information may include a start subframe number and a stop subframe number of the overlapping portion.
Further, the third sending module 703 may send a gap coordination response message for the gap coordination request message. Further, when the gap coordination response message indicates that the gap coordination request message is accepted, the gap coordination response message includes second indication information for indicating a coordination portion, where the coordination portion is at least a part of the overlapping portion. Wherein the second indication information includes a start subframe number and a stop subframe number of the coordination portion.
Preferably, the coordinating device 70 may further include a transmission module 704. In the coordination portion, the transmission module 704 may perform data transmission with a hardware resource, such as an RF component serving the secondary network, of the user equipment through a node of the secondary network.
Those skilled in the art will understand that the coordination device 70 of the present embodiment can be used to implement the method solution described in the embodiment shown in fig. 4. For more details of the operation principle and the operation manner of the measurement gap coordination device 70, reference may be made to the relevant descriptions in fig. 1, fig. 3 to fig. 5, and details are not repeated here.
Further, the embodiment of the present invention also discloses a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the measurement gap coordination method in any one of the embodiments shown in fig. 1 to fig. 5 are executed. Preferably, the storage medium may include a computer-readable storage medium. Preferably, the storage medium may include ROM, RAM, magnetic or optical disks, or the like.
Further, an embodiment of the present invention further discloses a user equipment, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to perform the steps of the measurement gap coordination method in the embodiment shown in fig. 2, and with regard to the method in the embodiment shown in fig. 2, reference may be made to the related descriptions of fig. 1, fig. 3, and fig. 5 together.
Further, the embodiment of the present invention also discloses a base station, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to execute the steps of the measurement gap coordination method in the embodiment shown in fig. 4, and with regard to the method in the embodiment shown in fig. 4, reference may be made to the related descriptions of fig. 1, fig. 3, and fig. 5 together.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (37)
1. A method for coordinating measurement gaps under dual connectivity, comprising:
receiving a first measurement gap and a second measurement gap from a network side, wherein the first measurement gap is configured by a node of a main network, and the second measurement gap is configured by a node of a secondary network;
when the duration of the overlapping part of the first measurement gap and the second measurement gap is greater than a preset threshold, sending a gap coordination request message to a network side, wherein the gap coordination request message comprises first indication information used for indicating the overlapping part so as to request to use at least one part of the overlapping part for data transmission;
and receiving a gap coordination response message aiming at the gap coordination request message and sent by a network side.
2. The coordination method according to claim 1, further comprising:
when the gap coordination response message indicates that the gap coordination request message is accepted, acquiring second indication information used for indicating a coordination part in the gap coordination response message, wherein the coordination part is at least one part of the overlapping part;
and in the coordination part, the hardware resources serving the main network are utilized to perform cell measurement of the main network and cell measurement of the auxiliary network, and the hardware resources serving the auxiliary network are utilized to perform data transmission with the nodes of the auxiliary network.
3. The coordination method according to claim 2, further comprising:
performing cell measurement of the primary network using hardware resources serving the primary network in a gap portion of the first measurement gap other than the coordination portion;
performing cell measurement of the secondary network using hardware resources serving the secondary network in a gap portion other than the coordination portion in the second measurement gap.
4. The coordination method according to claim 2 or 3, wherein performing, in the coordination portion, the cell measurement of the primary network and the cell measurement of the secondary network using hardware resources serving the primary network comprises:
determining a difference between measurement configurations of cell measurements of the primary network and cell measurements of the secondary network;
communicating the difference in the measurement configuration to the RRC entity of the primary network on the user equipment, such that the RRC entity of the primary network controls cell measurements of the primary network and cell measurements of the secondary network in the coordination portion based on the difference in the measurement configuration.
5. The coordination method according to claim 2 or 3, wherein said second indication information comprises a starting subframe number and a terminating subframe number of said coordination portion.
6. The coordination method according to claim 1, further comprising:
when the gap coordination response message indicates that the gap coordination request message is rejected, performing cell measurement of the primary network by using the hardware resources serving the primary network in the first measurement gap, and performing cell measurement of the secondary network by using the hardware resources serving the secondary network in the second measurement gap.
7. The coordination method according to any one of claims 2, 3, and 6, wherein the hardware resource serving the primary network is a radio frequency component serving the primary network, and the hardware resource serving the secondary network is a radio frequency component serving the secondary network.
8. The coordination method according to any one of claims 1 to 3 or 6, wherein the preset threshold is 1 subframe.
9. The coordination method according to any one of claims 1 to 3 or 6, wherein said first indication information comprises a start subframe number and a stop subframe number of said overlapping portion.
10. The coordination method according to any one of claims 1 to 3 or 6, wherein the primary network is a 4G network and the secondary network is a 5G network.
11. A method for coordinating measurement gaps under dual connectivity, comprising:
transmitting a first measurement gap and a second measurement gap to a user equipment, the first measurement gap configured by a node of a primary network and the second measurement gap configured by a node of a secondary network;
receiving a gap coordination request message sent by the user equipment, wherein the gap coordination request message includes first indication information for indicating an overlapping portion of the first measurement gap and the second measurement gap, the gap coordination request message is used for requesting to use at least one portion of the overlapping portion for data transmission, and the duration of the overlapping portion is greater than a preset threshold;
and sending a gap coordination response message aiming at the gap coordination request message.
12. The coordinating method of claim 11, wherein when the gap coordination response message indicates that the gap coordination request message is accepted, the gap coordination response message includes second indication information indicating a coordination portion, the coordination portion being at least a part of the overlapping portion, and the coordinating method further comprises:
and in the coordination part, carrying out data transmission with hardware resources serving the auxiliary network in the user equipment through the nodes of the auxiliary network.
13. The coordination method according to claim 12, wherein said second indication information comprises a starting subframe number and a terminating subframe number of said coordination portion.
14. The coordination method according to any one of claims 12 or 13, wherein the hardware resource serving the secondary network is a radio frequency component serving the secondary network.
15. The coordination method according to any one of claims 11 to 13, wherein said preset threshold is 1 subframe.
16. The coordination method according to any one of claims 11 to 13, wherein said first indication information comprises a start subframe number and a stop subframe number of said overlapping portion.
17. The coordination method according to any one of claims 11 to 13, wherein the primary network is a 4G network and the secondary network is a 5G network.
18. A measurement gap coordination device under dual connectivity, comprising:
a first receiving module, adapted to receive a first measurement gap and a second measurement gap from a network side, where the first measurement gap is configured by a node of a primary network, and the second measurement gap is configured by a node of a secondary network;
a first sending module, configured to send a gap coordination request message to a network side when a duration of an overlapping portion of the first measurement gap and the second measurement gap is greater than a preset threshold, where the gap coordination request message includes first indication information used for indicating the overlapping portion, so as to request to use at least a part of the overlapping portion for data transmission;
and the second receiving module is suitable for receiving a gap coordination response message which is sent by a network side and aims at the gap coordination request message.
19. The coordinating device of claim 18, further comprising:
an obtaining module, configured to obtain second indication information used for indicating a coordination portion in the gap coordination response message when the gap coordination response message indicates that the gap coordination request message is accepted, where the coordination portion is at least a part of the overlapping portion;
a first measurement module, in the coordination portion, the first measurement module performs cell measurement of the primary network and cell measurement of the secondary network using hardware resources serving the primary network, and performs data transmission with a node of the secondary network using hardware resources serving the secondary network.
20. The coordinating device of claim 19, further comprising:
a second measurement module adapted to perform cell measurements of the primary network using hardware resources serving the primary network in a gap portion of the first measurement gap other than the coordination portion;
a third measurement module adapted to perform cell measurements of the secondary network using hardware resources serving the secondary network in a gap portion of the second measurement gap other than the coordination portion.
21. The coordinating device of claim 19 or 20, wherein the first measuring module comprises:
a determination sub-module adapted to determine a difference between measurement configurations of cell measurements of the primary network and cell measurements of the secondary network;
a transfer sub-module adapted to transfer the difference of the measurement configuration to the RRC entity of the primary network on the user equipment, such that the RRC entity of the primary network controls the cell measurement of the primary network and the cell measurement of the secondary network at the coordination part based on the difference of the measurement configuration.
22. The coordinating device of claim 19 or 20, wherein the second indication information comprises a starting subframe number and a terminating subframe number of the coordinating portion.
23. The coordinating device of claim 18, further comprising:
a fourth measurement module adapted to perform cell measurements of the primary network using hardware resources serving the primary network at the first measurement gap and to perform cell measurements of the secondary network using hardware resources serving the secondary network at the second measurement gap, when the gap coordination response message indicates that the gap coordination request message is rejected.
24. The coordination device according to any one of claims 19, 20, and 23, wherein the hardware resources serving the primary network are radio frequency components serving the primary network, and the hardware resources serving the secondary network are radio frequency components serving the secondary network.
25. The apparatus according to any one of claims 18 to 20 and 23, wherein the preset threshold is 1 subframe.
26. The coordinating device of any one of claims 18-20, 23, wherein the first indication information comprises a starting subframe number and a terminating subframe number of the overlapping portion.
27. The coordinating device of any one of claims 18-20, 23, wherein the primary network is a 4G network and the secondary network is a 5G network.
28. A measurement gap coordination device under dual connectivity, comprising:
a second sending module adapted to send a first measurement gap configured by a node of the primary network and a second measurement gap configured by a node of the secondary network to the user equipment;
a third receiving module, adapted to receive a gap coordination request message sent by the ue, where the gap coordination request message includes first indication information used for indicating an overlapping portion of the first measurement gap and the second measurement gap, and the gap coordination request message is used for requesting to use at least a part of the overlapping portion for data transmission, where a duration of the overlapping portion is greater than a preset threshold;
a third sending module, adapted to send a gap coordination response message for the gap coordination request message.
29. The apparatus according to claim 28, wherein when the gap coordination response message indicates that the gap coordination request message is accepted, the gap coordination response message includes second indication information indicating a coordination portion, the coordination portion being at least a part of the overlapping portion, the apparatus further comprising:
and the transmission module is suitable for carrying out data transmission between the node of the auxiliary network and the hardware resource serving the auxiliary network in the user equipment in the coordination part.
30. The coordinating apparatus of claim 29, wherein the second indication information comprises a starting subframe number and a terminating subframe number of the coordinating portion.
31. The coordination device according to claim 29, wherein the hardware resource serving the secondary network is a radio frequency component serving the secondary network.
32. The apparatus according to any one of claims 28 to 31, wherein the preset threshold is 1 subframe.
33. The coordinating device of any one of claims 28-31, wherein the first indication information comprises a starting subframe number and a terminating subframe number of the overlapping portion.
34. The coordinating device of any one of claims 28-31, wherein the primary network is a 4G network and the secondary network is a 5G network.
35. A storage medium having a computer program stored thereon, wherein the computer program is adapted to perform the steps of the coordination method according to any one of claims 1 to 10 or 11 to 17 when the computer program is run by a computer.
36. A user equipment comprising a memory and a processor, the memory having stored thereon a computer program being executable on the processor, characterized in that the processor, when executing the computer program, performs the steps of the coordination method according to any of the claims 1 to 10.
37. A base station comprising a memory and a processor, the memory having stored thereon a computer program operable on the processor, wherein the processor, when executing the computer program, performs the steps of the coordination method according to any of claims 11 to 17.
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| CN113141652B (en) * | 2020-01-16 | 2022-12-30 | 华为技术有限公司 | Method for receiving signal in measuring time slot, network element equipment and readable storage medium |
| CN113923732B (en) * | 2020-07-09 | 2024-03-26 | 展讯半导体(南京)有限公司 | RRM measurement method and device, storage medium, UE and base station |
| CN112262606B (en) * | 2020-09-07 | 2022-12-27 | 北京小米移动软件有限公司 | Time gap request method and device, and time gap configuration method and device |
| WO2022178853A1 (en) * | 2021-02-26 | 2022-09-01 | Nec Corporation | Method, device and computer storage medium of communication |
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