CN114731545A

CN114731545A - Method for accessing terminal equipment to network and communication device

Info

Publication number: CN114731545A
Application number: CN201980102468.2A
Authority: CN
Inventors: 杨水根; 郝金平; 晋英豪; 谭巍
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2022-07-08
Also published as: WO2021102707A1

Abstract

The application provides a method for accessing a terminal device to a network and a communication device, which are used for solving the technical problem of high power consumption waste when the terminal device is accessed to the network in the prior art. When a terminal device needs to access to a network, a first network device firstly selects N TRPs (transient response time) for signal measurement to obtain a signal measurement result, and then determines M TRPs allocated to the terminal device for access based on the signal measurement result, wherein N and M are integers larger than zero, and N is larger than or equal to M. Therefore, the first network equipment can not broadcast the system information of the cell, and the terminal equipment can only carry out signal measurement on part of TRP, so that the terminal equipment can be accessed into the network from the TRP, and the power consumption of the network equipment and the terminal equipment can be effectively saved on the basis of ensuring the communication efficiency.

Description

Method for accessing terminal equipment to network and communication device

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a method and a communications apparatus for accessing a terminal device to a network.

Background

At present, the process of accessing a terminal device to a network is as follows: the base station broadcasts system information, and the system information comprises cell reselection parameters of each cell in the base station. A User Equipment (UE) measures a Reference Signal Received Power (RSRP) and/or a Reference Signal Receiving Quality (RSRQ) of a wireless channel, calculates a cell reception level value and a measured cell quality value for each cell under a base station, and then obtains other cell reselection parameters and associated cell minimum reception level requirements from system messages, thereby calculating a cell selection reception level value and a cell selection quality value for each cell. And if the selected receiving level value of a certain cell is greater than the cell reselection receiving level value measured by the same frequency or different frequency and the selected cell quality value is greater than the cell reselection quality value measured by the same frequency or different frequency, taking the cell as a candidate cell and taking the cell of which the measured value is the maximum value as the resident cell. And after the UE selects the resident cell, starting a random access process.

In the above process, the base station needs to send the system information continuously (e.g., periodically according to a set time interval), so that the power consumption of the base station and the UE is relatively high, and how to reduce the power consumption is an urgent problem to be solved.

Disclosure of Invention

The application provides a method for accessing a terminal device to a network and a communication device, which are used for solving the technical problem of large power consumption waste when the terminal device is accessed to the network in the prior art.

In a first aspect, a method for a terminal device to access a network is provided, including: a first network device selects N first Transmission and Reception Points (TRP) to perform signal measurement to obtain a signal measurement result, wherein the first TRP is connected with the first network device or connected with the first network device through a second network device; and the first network equipment determines M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers greater than zero, and N is greater than or equal to M.

In the embodiment of the application, when a terminal device needs to access to a network, a first network device selects a proper TRP for the terminal device, starts signal measurement on the selected TRP, and then determines the TRP allocated to the terminal device for access based on a signal measurement result, so that the terminal device is accessed to the network from the allocated TRPs. For network equipment, the system information of a broadcast cell is not needed, so that the power consumption of the network equipment is greatly saved; for the terminal device, if the selected TRP is not the TRP on all the second network devices connected to the first network device, signal measurement is not required for all the TRPs, and therefore, power consumption of the terminal device can be effectively saved. In summary, the embodiment of the application can effectively save the power consumption of the network device and the terminal device on the basis of ensuring the communication efficiency.

In the embodiment of the application, the terminal device and the first network device may participate in the decision process of the N first TRPs together, or the first network device may participate in the decision process of the N first TRPs separately.

In the following, a method of jointly participating in a decision process of N first TRPs by a terminal device and a first network device is introduced.

In one possible design, the first network device may receive TRP selection information from the terminal device, the TRP selection information indicating to the first network device the i adjacent TRPs selected by the terminal device; and the first network equipment selects the N first TRPs from the i adjacent TRPs, i is an integer greater than zero and is greater than or equal to N.

In the design mode, the terminal equipment selects i adjacent TRPs, then the first network equipment selects N first TRPs from the i adjacent TRPs selected by the terminal equipment, and the terminal equipment and the first network equipment jointly participate in the decision process of the N first TRPs, so that the reliability of selection of the first TRPs can be improved.

In one possible design, before the first network device receives the TRP selection information from the terminal device, the first network device may send report neighbor configuration information to the terminal device to instruct the terminal device to select the i neighbor TRPs from i second TRPs, where i ≧ i, and l is an integer greater than zero.

In the design mode, the first network equipment instructs the terminal equipment to select the i adjacent TRPs from the l second TRPs, and the terminal equipment is triggered to select the adjacent TRPs, so that the terminal equipment can select and feed back the i adjacent TRPs more quickly, the speed of selecting the first TRP is increased, and the speed of accessing the terminal equipment to the network is increased.

In one possible design, the reporting proximity configuration information includes at least one of the following information elements: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRP.

In this design, the first network device notifies the terminal device of the TRP identifiers, the location information, or the selection rules of the adjacent TRPs of the l second TRPs in a cell manner, so that the terminal device can quickly obtain the selection basis of the adjacent TRPs, quickly select the selection of the i adjacent TRPs, further increase the speed of selecting the first TRP, and increase the speed of accessing the terminal device to the network.

In the following, a method of solely participating in a decision process of the N first TRPs by the first network device is described.

In a possible design, the first network device may receive location information of the terminal device, where the location information is used for the first network device to select the N first TRPs.

In the design mode, the terminal device reports the position information to the first network device, so that the first network device can select the TRP closer to the terminal device for signal measurement based on the position of the terminal device, the number of the TRP for signal measurement and the time for signal measurement are reduced, the power consumption of the first network device can be saved, the first network device can also determine the TRP allocated to the terminal device for access more quickly, and the speed of the terminal device for accessing the network is further improved.

In a possible design, before the first network device receives the location information of the terminal device reported by the terminal device, the first network device may send positioning reporting configuration information to the terminal device, so as to instruct the terminal device to report the location information; wherein, the positioning reporting configuration information includes at least one of the following Information Elements (IE): the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.

In the design mode, the first network device sends the positioning reporting configuration information to the terminal device to indicate the terminal device to report the position information, so that the terminal device can report the position information on the ground in time according to the requirement of the first network device, the speed of selecting the first TRP by the first network device can be increased under the condition of ensuring that the terminal device has smaller power consumption, and the speed of accessing the terminal device to the network can be increased.

In one possible design, the first network device may select the N first TRPs according to one or more of the following rules: TRP with the distance from the terminal equipment not exceeding a threshold value; TRP satisfying a threshold with the load; TRPs in a white list, wherein all TRPs in the white list are TRPs which are allowed to be accessed by the terminal equipment.

In this design, multiple implementation manners for selecting the N first TRPs by the first network device are provided, so that the flexibility of the scheme can be improved.

In one possible design, the N first TRPs are located at the first network device. In another possible design, the N first TRPs are located at a second network device.

In the two design modes, a specific design mode of the TRPs in two product deployment modes of the first network device and the second network device is provided, that is, when the first network device and the second network device are integrally regarded as an entity product, N first TRPs are located in the first network device, and when the first network device and the second network device are respectively and independently regarded as an entity product, N first TRPs are located in the second network device, so that the applicability of the scheme can be improved.

In one possible design, the first network device may be a baseband processing unit BBU, and the second network device is an active antenna unit AAU; in another possible design, the first network device may be a centralized unit CU, and the second network device is a distributed unit DU; in yet another possible design, the first network device may be a centralized unit control plane CU-CP, and the second network device is a DU.

The design mode provides three different implementation modes of the first network device and the second network device, and the applicability of the scheme can be improved.

In a second aspect, a method for a terminal device to access a network is provided, including: a terminal device sends Sounding Reference Signals (SRS) to N first Transmission and Reception Points (TRP) selected by a first network device, wherein the SRS is used for the first network device to perform signal measurement on the N selected first TRP, and M TRPs allocated to the terminal device for access are determined based on a signal measurement result; the M TRPs allocated by the terminal equipment from the first network equipment are accessed to a network; wherein N and M are integers greater than zero, and N is greater than or equal to M.

In one possible design, the method further includes: the terminal equipment selects i adjacent TRPs from the l second TRPs, and generates TRP selection information based on the i adjacent TRPs; the terminal device sends the TRP selection information to the first network device, wherein the TRP selection information is used for indicating the i adjacent TRPs selected by the terminal device, so that the first network device selects the N first TRPs from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.

In one possible design, before the terminal device selects i adjacent TRPs from the i second TRPs, the method further includes: the terminal device receives reporting proximity configuration information from the first network device, wherein the reporting proximity configuration information is used for instructing the terminal device to select i adjacent TRPs from the l second TRPs, i is greater than or equal to i, and l is an integer greater than zero.

In one possible design, the method further includes: and the terminal equipment reports the position information of the terminal equipment to the first network equipment, wherein the position information is used for the first network equipment to select the N first TRPs.

In a possible design, before the terminal device reports the location information of the terminal device to the first network device, the method further includes: the terminal equipment receives positioning reporting configuration information from the first network equipment, wherein the positioning reporting configuration information is used for indicating the terminal equipment to report the position information; wherein, the positioning reporting configuration information comprises at least one of the following cells: the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.

In one possible design, the N first TRPs are located at the first network device.

In one possible design, the N first TRPs are located at a second network device.

In one possible design, the first network device is a baseband processing unit BBU, and the second network device is an active antenna unit AAU; or, the first network device is a centralized unit CU, and the second network device is a distributed unit DU; or, the first network device is a centralized unit control plane CU-CP, and the second network device is a DU.

In a third aspect, a method for a terminal device to access a network is provided, including: the first network equipment selects N first Transmission and Reception Points (TRP); the first network equipment sends a signaling to second network equipment where the N first TRPs are located so as to instruct the second network equipment to turn on a receiver and perform signal measurement on Sounding Reference Signals (SRS) received by the N first TRPs; and the first network equipment receives the signal measurement result sent by the second network equipment, and determines M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers greater than zero, and N is greater than or equal to M.

In one possible design, the signal measurements are used to indicate a channel state in the N first TRPs.

In a fourth aspect, a method for a terminal device to access a network is provided, including: a second network device receives signaling from a first network device, wherein the second network device has N first TRPs; the second network equipment opens a receiver according to the signaling, and performs signal measurement on Sounding Reference Signals (SRS) received by the N first TRPs; the second network device sends a signal measurement result to the first network device.

In a fifth aspect, a communication apparatus is provided, including: a selection module, configured to select N first transmission and reception points TRP for signal measurement, to obtain a signal measurement result, where the first TRP is connected to the connection or connected to the connection through a second network device; and the allocation module is used for determining M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers larger than zero, and N is larger than or equal to M.

In one possible design, the apparatus further includes: a receiving module, configured to receive TRP selection information from the terminal device, where the TRP selection information is used to indicate i adjacent TRPs selected by the terminal device, and the N first TRPs are selected from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.

In one possible design, the apparatus further includes: a sending module, configured to send report neighbor configuration information to the terminal device before the receiving module receives the TRP selection information from the terminal device, so as to instruct the terminal device to select i neighbor TRPs from i second TRPs, where i is greater than or equal to i, and l is an integer greater than zero.

In one possible design, the apparatus further includes: a receiving module, configured to receive location information of the terminal device, where the location information is used to select the N first TRPs, where the location information is reported by the terminal device.

In one possible design, the apparatus further includes: a sending module, configured to send positioning reporting configuration information to the terminal device before the receiving module receives the location information of the terminal device reported by the terminal device, so as to instruct the terminal device to report the location information; wherein, the positioning reporting configuration information includes at least one of the following Information Elements (IE): the period of positioning reporting, the duration of each positioning reporting, and the triggering event of the positioning reporting.

In one possible design, the selection module is configured to select the N first TRPs according to one or more of the following rules: TRP with the distance from the terminal equipment not exceeding a threshold value; TRP satisfying a threshold with the load; TRPs in a white list, wherein all TRPs in the white list are TRPs which are allowed to be accessed by the terminal equipment.

In one possible design, the N first TRPs are located on the apparatus.

In one possible design, the apparatus is a baseband processing unit BBU, and the second network device is an active antenna unit AAU; or, the apparatus is a centralized unit CU, and the second network device is a distributed unit DU; or, the apparatus is a centralized unit control plane CU-CP, and the second network device is a DU.

In a sixth aspect, a communication apparatus is provided, including: a sending module, configured to send a Sounding Reference Signal (SRS) to N first Transmission and Reception Points (TRPs) selected by a first network device, where the SRS is used for the first network device to perform signal measurement on the N selected first TRPs, and determine, based on a signal measurement result, M TRPs allocated to the terminal device for access; an access module for accessing the network from the M TRPs allocated by the first network device; wherein N and M are integers greater than zero, and N is greater than or equal to M.

In one possible design, the apparatus further includes: a selection module for selecting i adjacent TRPs from the l second TRPs, generating TRP selection information based on the i adjacent TRPs; the sending module is further configured to send the TRP selection information to the first network device, where the TRP selection information is used to indicate the i adjacent TRPs selected by the apparatus, so that the first network device selects the N first TRPs from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.

In one possible design, the apparatus further includes: a receiving module, configured to receive, before the selecting module selects i adjacent TRPs from the i second TRPs, reported adjacent configuration information from the first network device, where the reported adjacent configuration information is used to instruct the apparatus to select the i adjacent TRPs from the i second TRPs, where i ≧ i, and l is an integer greater than zero.

In a possible design, the sending module is further configured to report location information of the apparatus to the first network device, where the location information is used by the first network device to select the N first TRPs.

In one possible design, the apparatus further includes: a receiving module, configured to receive positioning reporting configuration information from the first network device before the sending module reports the location information of the device to the first network device, where the positioning reporting configuration information is used to instruct the device to report the location information; wherein, the positioning reporting configuration information comprises at least one of the following cells: the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.

In a seventh aspect, a communication apparatus is provided, including: a selection module, configured to select N first transmission reception points TRP; a sending module, configured to send a signaling to a second network device where the N first TRPs are located, so as to instruct the second network device to turn on a receiver and perform signal measurement on sounding reference signals SRS received by the N first TRPs; a receiving module, configured to receive a signal measurement result sent by the second network device; and the allocation module is used for determining M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers larger than zero, and N is larger than or equal to M.

In an eighth aspect, there is provided a communication apparatus comprising: a receiving module, configured to receive a signaling from a first network device, where there are N first TRPs on the apparatus; a measurement module, configured to turn on a receiver according to the signaling, and perform signal measurement on sounding reference signals SRS received by the N first TRPs; and the sending module is used for sending the signal measurement result to the first network equipment.

In one possible design, the first network device is a baseband processing unit BBU, and the apparatus is an active antenna unit AAU; or, the first network device is a centralized unit CU, and the apparatus is a distributed unit DU; or, the first network device is a centralized unit control plane CU-CP, and the apparatus is a DU.

In a ninth aspect, a communication device is provided, comprising a transceiver and a processor, the processor being coupled to the transceiver, for example by a bus connection. Wherein the processor, in cooperation with the transceiver, is capable of performing the method of the first, second, third or fourth aspect.

In a tenth aspect, a communications apparatus is provided that includes a processor and a memory; the memory is used for storing computer execution instructions; the processor is configured to execute computer-executable instructions stored by the memory to cause the communication device to perform the method of the first, second, third or fourth aspect.

In an eleventh aspect, a communication device is provided that includes a processor and an interface circuit; the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor executes the code instructions to perform the method of the first, second, third or fourth aspect.

In a twelfth aspect, there is provided a computer readable storage medium for storing instructions that, when executed, cause a method as described in the first, second, third or fourth aspects above to be implemented.

In a thirteenth aspect, a chip is provided, the chip is coupled with a memory, and configured to read and execute program instructions stored in the memory to implement the method as described in the first, second, third or fourth aspect.

In a fourteenth aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first, second, third or fourth aspect as described above.

A fifteenth aspect provides a communication system comprising a network device configured to perform the method according to the first aspect and a terminal device configured to perform the method according to the second aspect.

In a sixteenth aspect, a communication system is provided, comprising a first network device configured to perform the method according to the third aspect and a second network device configured to perform the method according to the fourth aspect.

The beneficial effects of the design manners in the second aspect to the sixteenth aspect are referred to the beneficial effects of the corresponding design in the first aspect, and are not described herein again.

Drawings

Fig. 1 is a diagram of a network architecture of a communication system to which an embodiment of the present application is applicable;

fig. 2 is a flowchart of a method for a terminal device to access a network in an embodiment of the present application;

fig. 3 is a flowchart of another method for a terminal device to access a network in an embodiment of the present application;

fig. 4 is a flowchart of another method for a terminal device to access a network in an embodiment of the present application;

fig. 5 is a flowchart of another method for a terminal device to access a network in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device in the embodiment of the present application;

fig. 8 is a schematic structural diagram of another communication device in the embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication device in the embodiment of the present application;

fig. 10 is a schematic structural diagram of another communication device in the embodiment of the present application;

fig. 11 is a schematic structural diagram of another communication device in the embodiment of the present application;

fig. 12 is a schematic structural diagram of another communication device in the embodiment of the present application.

Detailed Description

In order to solve the technical problem of large power consumption waste when a terminal device accesses a network in the prior art, embodiments of the present application provide a method and an apparatus for accessing a terminal device to a network. The method comprises the following steps: when a terminal device needs to access to a network, the network device selects a proper Transmission Reception Point (TRP) for the terminal device, starts signal measurement (including RSRP measurement and/or RSRQ measurement) on the selected TRP, and determines a TRP allocated to the terminal device for access based on the signal measurement result, so as to access the terminal device to the network from the allocated TRPs. In the scheme, the network device may not broadcast the system information of the cell, and the terminal device may perform RSRP and/or RSRQ measurement on a part of the TRPs, so that power consumption of the network device and the terminal device may be effectively saved on the basis of ensuring communication efficiency.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: long Term Evolution (LTE) systems, Worldwide Interoperability for Microwave Access (WiMAX) communication systems, future fifth Generation (5th Generation, 5G) systems, such as new radio access technology (NR), and future communication systems, such as 6G systems.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Fig. 1 is a diagram of a network architecture of a communication system to which an embodiment of the present invention is applicable. The communication system includes a first network device 101, a second network device 102 and a second network device 103, a terminal device 1, a terminal device 2 and a terminal device 3. There is a communication interface between the first network device 101 and the

second network devices

102 and 103, respectively, so that the first network device 101 can communicate with the second network device 102 and the second network device 103, respectively.

As shown in fig. 1, a terminal device may be connected to at least one second network device, for example, terminal device 1 is connected to second network device 102, terminal device 3 is connected to second network device 103, and terminal device 2 is connected to second network device 102 and second network device 103. The second network device may be connected to at least one first network device, for example, the second network device 102 and the second network device 103 are respectively connected to the first network device 101. Of course, the number of first network devices in fig. 1 is only an example, and in practical applications, there may be more first network devices, and there may be more or less second network devices.

The first network device may be a baseband unit (BBU), and the second network device may be an Active Antenna Unit (AAU); alternatively, the first network device may be a Central Unit (CU), and the second network device may be a Distributed Unit (DU); alternatively, the first network device may be a centralized unit control plane (CU-CP), and the second network device may be a Distributed Unit (DU). The embodiments of the present application are not limited herein. One or more TRPs (not shown in fig. 1) may be included on each second network device, and one TRP may correspond to one or more cells (not shown in fig. 1).

It should be understood that, in various embodiments, the first network device and the second network device in the communication system shown in fig. 1 may be regarded as two separate physical products from a product perspective, or may be regarded as a set of physical products as a whole. When the first network device and the second network device are regarded as a set of entity products, the first network device and the second network device may be collectively referred to as "first network device", and then the TRP may be regarded as being located on the "first network device", or the first network device and the second network device may be collectively referred to as other names, for example, a base station, and then the TRP may be regarded as being located on the base station, which is not limited in the embodiment of the present application.

In the following, the technical solutions in the embodiments of the present application are clearly and completely described with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, not all, embodiments of the present invention.

In order to make the embodiments of the present application clearer, the following sections and concepts related to the embodiments of the present application are collectively described herein.

1) Terminal device, including a device providing voice and/or data connectivity to a user, in particular, including a device providing voice to a user, or including a device providing data connectivity to a user, or including a device providing voice and data connectivity to a user. For example, may include a handheld device having wireless connection capability, or a processing device connected to a wireless modem. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchange voice or data with the RAN, or interact with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a vehicle-to-all (V2X) terminal device, a machine-to-machine/machine-type communication (M2M/MTC) terminal device, an internet of things (internet of things, IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point, AP), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a user agent (user), or a user equipment (user), etc. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device has full functions and large size, and can realize complete or partial functions without depending on a smart phone, for example: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example.

In the embodiment of the present application, the terminal device may also include a relay, for example, it may be understood that the terminal device can be regarded as a terminal device that can perform data communication with the base station.

2) A network device, e.g., including a base station (e.g., access point), may refer to a device in an access network that communicates over the air-interface, through one or more cells, with wireless terminal devices. The network device may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB, or eNB, or e-NodeB, evolved Node B) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation Node B (gNB) in a fifth generation mobile communication technology (5G) New Radio (NR) system, which is not limited in the embodiments of the present disclosure.

In some embodiments, the base station may be formed by a baseband processing unit (BBU) and an Active Antenna Unit (AAU). The BBU provides an external interface connected with the transmission equipment, the radio frequency module, the base station information source, the external clock source and the network management equipment, and realizes the functions of signal transmission, automatic upgrading of base station software, clock receiving and the like; the whole base station system is managed in a centralized way, and the functions of processing uplink and downlink data, signaling processing, resource management, operation maintenance and the like are completed. Wherein one BBU is connected with at least one AAU. The AAU is a set of a radio frequency unit and an antenna, provides transmission and conversion of signals between the BBU and the antenna, and provides an antenna function, an electric tuning function, an installation slot position, an interface and the like. One or more TRPs are present on one AAU.

In one network architecture, a network device may include a Centralized Unit (CU), or a Distributed Unit (DU), or a radio access network device including CUs and DUs. In the base station architecture with separate CUs and DUs, one base station may include one CU and one or more DUs. Further, a CU may include a centralized unit control plane (CU-CP) and one or more centralized unit user planes (CU-UP). Functional partitioning of CUs and DUs may include, but is not limited to, partitioning according to a protocol stack. One possible approach is to deploy Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP) layers and Service Data Adaptation (SDAP) layers on the CU. Radio Link Control (RLC), Medium Access Control (MAC), and physical layer (PHY) are deployed in the DU. Accordingly, the CU has the processing capabilities of RRC, PDCP, and SDAP, and the DU has the processing capabilities of RLC, MAC, and PHY. It is noted that the above functional partitioning is only an example, and that other ways of partitioning are possible. For example, a CU includes the processing capabilities of RRC, PDCP, RLC, and SDAP, and a DU has the processing capabilities of MAC, and PHY. Also for example, a CU may include processing capabilities for RRC, PDCP, RLC, SDAP, and partial MAC (e.g., MAC header), and a DU may have processing capabilities for PHY and partial MAC (e.g., scheduling). Names of the CUs and the DUs may be changed, and as long as the access network nodes capable of implementing the above functions can be regarded as the CUs and the DUs in the present application. The CU-CP has CU control plane functions, e.g., RRC processing capability, and control plane processing capability in PDCP. The CU-UP has the user plane functionality of the CU, e.g., the processing power of SDAP, and the user plane processing power in PDCP. The CU and DU are connected via an F1 interface. The CU-CP and the CU-UP can be connected through an E1 interface, the CU-CP and the DU can be connected through a control plane interface (F1-C) of F1, and the CU-UP and the DU can be connected through a user plane interface (F1-U) of F1.

3) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein any of a, b, c, a-b, a-c, b-c, or a-b-c may comprise a single a, a single b, a single c, or a plurality of a, a plurality of b, and a plurality of c.

And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first priority criterion and the second priority criterion are only used for distinguishing different criteria, and do not represent the difference of the content, priority, importance, and the like of the two criteria.

Furthermore, the terms "comprising" and "having" in the description of the embodiments and claims of the present application and the drawings are not intended to be exclusive. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules listed, but may include other steps or modules not listed.

The technical scheme of the embodiment of the application can be applied to a 5G system; the present invention is also applicable to other wireless Communication systems, such as Long Term Evolution (LTE) System, Global System for Mobile Communication (GSM) System, Mobile Communication System (UMTS), Code Division Multiple Access (CDMA) System, and new network equipment System.

Based on the above introduced application network scenario, a specific implementation process of accessing a terminal device to a network provided in the embodiments of the present application is described below with reference to the accompanying drawings.

Fig. 2 is a flowchart of a method for a terminal device to access a network according to an embodiment of the present disclosure, where the method may be applied to the communication system shown in fig. 1. The method comprises the following steps:

s201, the first network equipment selects N first TRPs to carry out signal measurement, and a signal measurement result is obtained.

In the embodiment of the present application, if a first network device and a second network device are regarded as a set of physical products, or the second network device is regarded as a part of the first network device, the TRP may be considered to be connected to the first network device, or the TRP may be located on the first network device; if a first network device and a second network device are considered as two separate physical products, the TRP may be considered to be connected to the first network device through the second network device.

For convenience of description, in the embodiments of the present application, assuming that all the TRPs are Q (or the number of TRPs to be selected is Q), Q herein can be understood in two ways: when the first network device, the first network device and the second network device are regarded as two independent entity products, Q is the number of all TRPs of the second network device; when the second type, the first network device and the second network device are regarded as a set of entity products, or the second network device is regarded as a part of the first network device, Q is the total number of TRPs of the first network device. In the following, the technical solution of the present invention is mainly described in detail by taking the first network device and the second network device as two independent entity products as an example.

The first network equipment selects N TRPs from the Q TRPs to measure signals, wherein Q, N is a positive integer, and N is less than or equal to Q.

In this embodiment, the signal measurement may be uplink signal measurement on the N first TRPs. The type of signal measurement includes RSRP measurement and/or RSRQ measurement. The N first TRPs selected by the first network device may be a part of TRPs on at least one second network device connected to the first network device, or all of TRPs on at least one second network device connected to the first network device, which is not limited herein in the embodiments of the present application.

Illustratively, the method for the first network device to select the N first TRPs includes, but is not limited to, the following two.

Mode 1, a terminal device selects i adjacent TRPs, and a first network device selects N first TRPs needing signal measurement from the i adjacent TRPs selected by the terminal device.

Specifically, when the first network device determines that the terminal device needs to access the network, it may first send, to the terminal device, report proximity configuration information, where the report proximity configuration information is used to instruct the terminal device to select i proximity TRPs from the i second TRPs; after receiving the reported adjacent configuration information from the first network equipment, the terminal equipment selects i adjacent TRPs from the l second TRPs, generates TRP selection information based on the selected i adjacent TRPs, and then sends the TRP selection information to the first network equipment; after receiving the TRP selection information from the terminal equipment, the first network equipment selects N first TRPs from the i adjacent TRPs selected by the terminal equipment, and then performs signal measurement on the selected N first TRPs. i. l is a positive integer, and N is not less than i and not more than l.

In some possible designs, the l second TRPs may be all of the TRPs on at least one second network device connected to the first network device, i.e. l Q; in other possible designs, the l second TRPs may be a portion of TRPs on at least one second network device connected to the first network device, i.e., l < Q.

In some possible designs, the reported proximity configuration information may include one or more of: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRP. The location information is location information (e.g., global navigation satellite system location information) of each second TRP.

In some possible designs, the TRP selection information may include: TRP identity of selected i adjacent TRPs.

In some possible designs, the selection rule of the adjacent TRPs may have various implementations, for example, TRPs whose distance from the terminal device is smaller than a threshold, or the TRPs closest and next closest to the terminal device from among the l second TRPs, and so on, and the embodiments of the present application are not limited herein. The threshold may be 100 meters, 200 meters, etc., and of course, other values may also be used, and those skilled in the art may select the threshold according to the actual situation, and the embodiment of the present application is not limited herein.

As such, the first network device may select N first TRPs among the i neighboring TRPs based on a preset rule. Illustratively, the first network device chooses the N first TRPs according to one or more of the following rules: 1) selecting a TRP that is not more than (i.e. less than or equal to) a threshold distance from the terminal device, e.g. selecting a TRP that is not more than 100 meters from the terminal device; 2) selecting TRPs with a load not exceeding a threshold (wherein the load may be represented by the number of accessed terminal devices, i.e. selecting TRPs with a number of accessed terminal devices less than or equal to a preset number, for example selecting TRPs with a number of accessed terminal devices less than or equal to 100); 3) selecting TRPs in a white list, wherein the TRPs in the white list are all TRPs which are allowed to be accessed by the terminal equipment; 4) selecting TRPs which are not in a blacklist, wherein all TRPs in the blacklist are TRPs which are not allowed to be accessed by the terminal equipment.

And in the mode 2, the terminal equipment reports the position information of the terminal equipment to the first network equipment, and the first network equipment selects N first TRPs needing signal measurement by combining the position information of the terminal equipment.

In different embodiments, the reporting of the location information to the first network device by the terminal device may be actively triggered by the terminal device itself, or triggered by the first network device.

Taking the example that the terminal device actively triggers reporting of the location information, when the terminal device needs to access the network, the terminal device may report the location information to the first network device, for example: global navigation satellite system location information.

Taking an example that the first network device triggers the terminal device to report the location information, when determining that the UE needs to access the network, the first network device may first send location reporting configuration information to the terminal device, so as to indicate the terminal device to report the location information, where the location reporting configuration information includes at least one of the following Information Elements (IEs): the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting; after receiving the positioning reporting configuration information, the terminal device determines its own position information (e.g., global navigation satellite system position information), and reports its own position information to the first network device; after receiving the location information reported by the terminal device, the first network device selects N first TRPs from TRPs on a second network device connected to the first network device according to a preset rule.

In some possible designs, the first network device may select the N first TRPs according to one or more of the following rules: 1) selecting a TRP that is not more than (i.e. less than or equal to) a threshold distance from the terminal device, e.g. selecting a TRP that is not more than 100 meters from the terminal device; 2) selecting TRPs whose load does not exceed a threshold (e.g., selecting TRPs whose number of terminal devices accessed is less than or equal to 100); 3) selecting TRPs in a white list, wherein the TRPs in the white list are all TRPs which are allowed to be accessed by the terminal equipment; 4) selecting TRPs which are not in a blacklist, wherein all TRPs in the blacklist are TRPs which are not allowed to be accessed by the terminal equipment.

Further, after selecting the N first TRPs, the first network device performs signal measurement on the selected N first TRPs, and may be: the method comprises the steps that first network equipment sends Sounding Reference Signal (SRS) configuration information to terminal equipment and indicates the terminal equipment to send the SRS; the first network equipment sends signaling to second network equipment where the N first TRPs are located, and the second network equipment is indicated to turn on a receiver, so that the TRP on the second network equipment can receive the SRS; the terminal equipment sends SRS to the N first TRPs selected by the first network equipment; and the second network equipment performs signal measurement on the SRS received by the N first TRPs, and reports a signal measurement result corresponding to each first TRP to the first network equipment. Wherein the signal measurement result corresponding to each first TRP is used for indicating the channel state in the first TRP.

S202, the first network equipment determines M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein M is a positive integer, and N is larger than or equal to M.

Specifically, the first network device determines M TRPs allocated to the terminal device for access according to a measurement result of a signal corresponding to each of the N first TRPs. And then, the terminal equipment initiates a random access flow from the M TRPs distributed by the first network equipment to access the network. Optionally, in combination with the method for selecting the N first TRPs by the first network device in the foregoing manner 1, M should further satisfy: i is more than or equal to M.

In the embodiment of the application, when a terminal device needs to access to a network, a first network device selects a proper TRP for the terminal device, starts signal measurement on the selected TRP, and then determines the TRP allocated to the terminal device for access based on a signal measurement result, so that the terminal device is accessed to the network from the allocated TRPs. In the scheme, for the network equipment, the system information of the cell does not need to be broadcasted, so that the power consumption of the network equipment is greatly saved; for the terminal device, if the selected TRP is not the TRP on all the second network devices connected to the first network device, it is not necessary to perform signal measurement on all the TRPs (that is, it is not necessary to perform signal measurement on all the cells), so that the power consumption of the terminal device can be effectively saved.

In order to better understand the technical solution of the embodiments of the present application, the embodiments of the present application are further illustrated by two specific examples.

Example 1

Referring to fig. 3, a flowchart of another method for a terminal device to access a network according to an embodiment of the present application is provided, where the method may be applied to the communication system shown in fig. 1.

S301, the first network device sends report proximity configuration information to the terminal device, and the report proximity configuration information is used for indicating the terminal device to select TRP (channel map) in proximity to the terminal device.

Illustratively, the reporting proximity configuration information may include the following information:

1) at least one TRP Identity (ID), wherein one TRP ID uniquely identifies one TRP. Alternatively, when a certain TRP only indicates one cell, the TRP ID of the TRP may be the identity of the cell indicated by the TRP, for example: a Cell Global Identifier (CGI). The CGI may be an NR Cell Global Identifier (NCGI), or an evolved universal terrestrial radio access (E-UTRA) cell global identifier (ECGI). For ease of distinction, a TRP in the report proximity configuration information is referred to herein as a second TRP. The second TRP may be understood as the TRP indicated by the report neighbor configuration information.

2) And position information of the second TRP. Optionally, the position information may be Global Positioning System (GPS) information, beidou satellite navigation system (BDS) information, GNSS (global navigation satellite system) position information, and the like, which is not limited in the embodiment of the present application.

The reporting proximity configuration may further include an event (event) that triggers the terminal device to select a proximity TRP. For example: and when the distance between the terminal equipment and a certain second TRP is smaller than the preset distance, the terminal equipment selects the second TRP as the adjacent TRP.

It should be appreciated that the first network device indirectly sends the reporting proximity configuration information to the terminal device through the second network device. As shown in fig. 3, the first network device 101 first sends the reported proximity configuration information to the second network device 102, and the second network device 102 sends the reported proximity configuration information to the terminal device after receiving the reported proximity configuration information.

S302, the terminal equipment receives the adjacent configuration information, and selects at least one adjacent TRP according to the received reported adjacent configuration information.

For example, the terminal device calculates the distance between itself and each second TRP, and may select one or more TRPs according to the distance.

And S303, the terminal equipment reports the selected information of at least one adjacent TRP to the first network equipment.

It should be understood that the terminal device indirectly reports the information of the selected at least one adjacent TRP to the first network device through the second network device. As shown in fig. 3, the terminal device first sends the selected information of at least one adjacent TRP to the second network device 102, and after receiving the selected information of at least one adjacent TRP, the second network device 102 sends the selected information of at least one adjacent TRP to the first network device 101.

S304, the first network equipment receives the information of at least one adjacent TRP selected by the terminal equipment, and determines second network equipment needing signal measurement according to the at least one adjacent TRP selected by the terminal equipment.

Specifically, after determining at least one adjacent TRP selected by the terminal device, the first network device selects N TRPs from the at least one adjacent TRP as first TRPs in combination with a TRP selection policy, and determines that RSRP measurement and/or RSRQ measurement needs to be performed on a second network device where the selected N first TRPs are located. The number of the second network devices where the N selected first TRPs are located may be one, that is, the N selected first TRPs are located in the same second network device; alternatively, the second network device where the one or more selected TRPs are located may be multiple, that is, the N selected first TRPs are located in different second network devices. In fig. 3, the first network device 101 selects the second network device 103 as the signal measurement. Wherein the TRP selection strategy may comprise: selecting a TRP whose load satisfies a threshold, selecting a TRP to which the terminal device is allowed to access, and the like.

After the decision is completed, the first network device sends SRS configuration information to the terminal device, and sends signaling to the determined second network device, that is, steps S305 and S306 in fig. 3.

S305, the first network equipment sends SRS configuration information to the terminal equipment.

Illustratively, the SRS configuration information may include: SRS transmission period (duration), Frequency Domain Position (FDP) of SRS transmission, Antenna Port (AP) of SRS transmission, and the like.

It should be understood that the first network device indirectly transmits the SRS configuration information to the terminal device through the second network device. As shown in fig. 3, the first network device 101 first sends the SRS configuration information to the second network device 102, and the second network device 102 sends the SRS configuration information to the terminal device after receiving the SRS configuration information.

S306, the first network device sends a signaling to a second network device that needs to perform signal measurement, and instructs the second network device to turn on a receiver, so as to perform RSRP measurement and/or RSRQ measurement.

S307, the terminal device receives the SRS configuration information and sends the SRS to the N first TRPs in the second network device indicated by the first network device according to the SRS configuration information.

S308, the second network device performs signal measurement on the SRS received by the N first TRPs, obtains a signal measurement result (RSRP and/or RSRQ) corresponding to each first TRP, and reports the signal measurement result to the first network device. Wherein the signal measurement corresponding to each first TRP is used for indicating the signal state of the first TRP.

S309, the first network device receives the signal measurement results reported by the second network devices, and determines M TRPs allocated to the terminal device for accessing the network according to the signal measurement results reported by the second network devices. The first network device determines the TRPs allocated to the terminal device for accessing the network, and is part or all of the one or more first TRPs selected by the first network device in step S304.

Specifically, the terminal device evaluates the channel state of each TRP (or each cell) based on the signal measurement result reported by each second network device, so as to allocate a resource block with a good instantaneous channel state to the transmission of the terminal device (based on channel-related scheduling), and of course, the signal measurement result may also be used to select different transmission parameters, such as an instantaneous data rate allowed to be transmitted by the terminal device.

In the above scheme, when the terminal device needs to access the network, the terminal device first selects one or more TRPs adjacent to the terminal device based on the reported neighbor configuration information sent by the first network device, then the first network device selects TRPs that need to be subjected to signal measurement from the neighbor TRPs selected by the terminal device, then performs signal measurement on the selected TRPs, and finally determines one or more TRPs allocated to the terminal device for accessing the network based on the signal measurement result. In the scheme, the network device may not broadcast the system information of the cell, and the terminal device may not perform RSRP and/or RSRQ measurement on all TRPs, so that power consumption of the network device and the terminal device may be effectively saved. In addition, both the terminal device and the network device participate in the decision of the TRP which needs to perform signal measurement, so that the flexibility of the communication system can be improved.

Example 2

Referring to fig. 4, a flowchart of another method for a terminal device to access a network according to an embodiment of the present application is provided, where the method may be applied to the communication system shown in fig. 1.

S401, the first network device sends positioning reporting configuration to the terminal device, and the positioning reporting configuration is used for indicating the terminal device to report position information.

The positioning reporting configuration includes, but is not limited to, the following information: 1) the positioning reporting interval is used for indicating the time interval of reporting the position information by the terminal equipment, for example, reporting the position information once every 60 seconds; 2) the positioning reporting duration is used for indicating the duration of reporting the position information of the terminal equipment each time, for example, the positioning reporting duration of each time lasts for 4 seconds; 3) and a positioning reporting trigger event, configured to instruct the terminal device to report the location information, for example, when the terminal device detects that an RSRP of a currently accessed TRP is smaller than a first set threshold and/or an RSRQ of the currently accessed TRP is smaller than a second set threshold, the terminal device starts to report the location information of the terminal device.

It should be understood that the first network device indirectly sends the positioning reporting configuration to the terminal device through the second network device. As shown in fig. 4, the first network device 101 first sends the positioning reporting configuration to the second network device 102, and the second network device 102 sends the positioning reporting configuration to the terminal device after receiving the positioning reporting configuration.

S402, the terminal equipment receives the positioning reporting configuration and reports the position according to the positioning reporting configuration sent by the first network equipment. For example, the terminal device reports its own GPS information, BDS information, or GNSS location information according to the positioning reporting interval.

It should be appreciated that the terminal device reports the location information indirectly to the first network device via the second network device. As shown in fig. 4, the terminal device reports its location information to the second network device 102, and the second network device 102 sends the location information to the first network device 101 after receiving the location information.

S403, the first network equipment receives the position information of the terminal equipment, selects the second network equipment according to the position information of the terminal equipment and by combining with the TRP selection strategy, and performs RSRP measurement and/or RSRQ measurement on the selected second network equipment.

Specifically, the first network device may select N TRPs from Q TRPs (all TRPs of the second network device) as the first TRP, and determine that the second network device where the selected N first TRPs is located needs to perform RSRP measurement and/or RSRQ measurement. For example: selecting a second network device which has a distance not exceeding a preset distance from the terminal device, satisfies a threshold value in load and is provided with the TRP accessed by the terminal device. And after the decision is completed, executing S404-S408.

S404, the first network equipment sends SRS configuration information to the terminal equipment.

It should be understood that the first network device indirectly transmits the SRS configuration information to the terminal device through the second network device. As shown in fig. 4, the first network device 101 first sends the SRS configuration information to the second network device 102, and the second network device 102 sends the SRS configuration information to the terminal device after receiving the SRS configuration information.

S405, the first network device sends a signaling to a second network device (in fig. 4, the second network device 103 is taken as an example) that needs to perform signal measurement, and instructs the second network device to turn on a receiver, so as to perform RSRP measurement and/or RSRQ measurement.

S406, the terminal device receives the SRS configuration information from the first network device, and sends the SRS to the N first TRPs in the second network device according to the SRS configuration information.

S407, the second network device performs signal measurement on the SRS received by the N first TRPs, obtains a signal measurement result (RSRP and/or RSRQ) corresponding to each first TRP, and reports the signal measurement result to the first network device.

S408, the first network device receives the signal measurement results from the second network devices, and determines M TRPs allocated to the terminal device for accessing the network according to the signal measurement results reported by each second network device. The first network device determines the TRPs allocated to the terminal device for accessing the network, and selects some or all of the N first TRPs from the N first TRPs selected by the first network device in step S403.

For a specific implementation of the steps S404 to S408, reference may be made to a specific implementation of the corresponding steps S305 to S309 in the above example 1, and details are not described here again.

In the above scheme, when the terminal device needs to access the network, the terminal device reports its own location information to the first network device based on the first network device sending the report positioning configuration, and then the first network device determines which second network devices to perform RSRP measurement and/or RSRQ measurement according to the location information of the terminal device in combination with the TRP selection policy, and finally the first network device determines one or more TRPs allocated to the terminal device for accessing the network according to the signal measurement results of the second network devices. In this scheme, the network device may not broadcast the system information of the cell, and the terminal device may not perform RSRP measurement and/or RSRQ measurement on all TRPs, so that power consumption of the network device and the terminal device may be effectively saved. In addition, the TRP which needs to be subjected to signal measurement is uniformly decided by the first network equipment, so that the decision efficiency can be improved.

The above embodiment describes the technical solution of the present invention by taking the first network device and the second network device as two independent entity products as an example. In practical applications, the first network device and the second network device may be regarded as a set of entity products as a whole. In the following, taking the first network device and the second network device as an example, which are regarded as a set of physical products from a product perspective, and combining with the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application are clearly and completely described, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention.

Please refer to fig. 5, which is a flowchart illustrating a method for a terminal device to access a network according to another embodiment of the present application. The method comprises the following steps:

s501, the base station selects N first TRPs to carry out signal measurement, and a signal measurement result is obtained.

Similarly, the signal measurements include RSRP measurements and/or RSRQ measurements. The N first TRPs selected by the first network device may be a part of TRPs or all of TRPs in the base station, which is not specifically limited herein.

Similarly, the method for the base station to select the N first TRPs includes, but is not limited to, the following two methods:

in the method 1, the terminal device selects i adjacent TRPs first, and the base station selects TRPs (i.e. the N first TRPs) to be measured from the i adjacent TRPs selected by the terminal device. For a specific implementation manner herein, reference may be made to the specific implementation manner of the manner 1 in the step S201, and details are not described again.

And in the mode 2, the terminal equipment reports the position information of the terminal equipment to the base station, and the base station selects one or more first TRPs (total partial pressure values) required to be subjected to signal measurement by combining the position information of the terminal equipment. For a specific implementation manner here, reference may be made to the specific implementation manner of the manner 2 in the step S201, and details are not described again.

After the base station selects the N first TRPs, performing signal measurement on the selected N first TRPs: the terminal equipment transmits SRS to the one or more TRPs; the base station turns on receivers corresponding to the N first TRPs, so that the one or more first TRs can receive the SRS; and the base station carries out signal measurement on the SRSs received by the N first TRPs, and obtains a measurement result corresponding to each first TRP.

S502, the base station determines M TRPs allocated to the terminal equipment for access based on the signal measurement result.

In the specific implementation manner of step S502, reference may be made to the specific implementation manner of the first network device determining, based on the signal measurement result, the M TRPs allocated to the terminal device for access in the foregoing embodiment, which is not described herein again.

In the embodiment of the application, when a terminal device needs to access to a network, a base station selects a proper TRP for the terminal device and starts signal measurement on the selected TRP, so that the terminal device is accessed to the network from the selected TRPs. For the base station, the system information of the cell does not need to be broadcasted, so that the power consumption of the base station is greatly saved; for the terminal device, if the selected TRP is not all TRPs in the base station, signal measurement does not need to be performed on all TRPs (that is, signal measurement does not need to be performed on all cells), so that power consumption of the terminal device can be effectively saved.

The above embodiments may be combined with each other to achieve different technical effects.

Based on the same technical concept, referring to fig. 6, an embodiment of the present application provides a communication apparatus 600, including:

a selecting module 601, configured to select N first transmission and reception points TRP for signal measurement, to obtain a signal measurement result, where the first TRP is connected to the connection or connected to the connection through a second network device;

an allocating module 602, configured to determine, based on the signal measurement result, M TRPs allocated to the terminal device for access, where N and M are integers greater than zero, and N is greater than or equal to M.

In one possible design, the apparatus may further include:

a receiving module 603, configured to receive TRP selection information from the terminal device, where the TRP selection information is used to indicate i adjacent TRPs selected by the terminal device, where the N first TRPs are selected from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.

In one possible design, the apparatus may further include:

a sending module 604, configured to send report neighbor configuration information to the terminal device before the receiving module 603 receives the TRP selection information from the terminal device, so as to instruct the terminal device to select i neighbor TRPs from i second TRPs, where i is greater than or equal to i, and i is an integer greater than zero.

In one possible design, the apparatus further includes:

a receiving module 603, configured to receive location information of the terminal device, where the location information is used for selecting the N first TRPs, where the location information is reported by the terminal device.

In one possible design, the apparatus further includes:

a sending module 604, configured to send positioning reporting configuration information to the terminal device before the receiving module 603 receives the location information of the terminal device reported by the terminal device, so as to instruct the terminal device to report the location information; wherein, the positioning reporting configuration information includes at least one of the following Information Elements (IE): the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.

In one possible design, the selection module 601 is configured to select the N first TRPs according to one or more of the following rules: TRP with the distance from the terminal equipment not exceeding a threshold value; TRP satisfying a threshold with load; TRPs in a white list, wherein all TRPs in the white list are TRPs which are allowed to be accessed by the terminal equipment.

In one possible design, the N first TRPs are located on the device.

The receiving module 603 and the sending module 604 are optional, and are indicated by dashed lines in fig. 6.

For a specific implementation manner of the method steps executed by each module in the apparatus, reference may be made to a specific implementation manner of the method steps executed by the first network device in the foregoing embodiment, and details are not described here again.

Based on the same technical concept, referring to fig. 7, the present application also provides a communication apparatus 700, including:

a sending module 701, configured to send a sounding reference signal SRS to N first transmission and reception points TRP selected by a first network device, where the SRS is used for the first network device to perform signal measurement on the N selected first TRPs, and determine, based on a signal measurement result, M TRPs allocated to the terminal device for access;

an access module 702 for accessing the network from the M TRPs allocated by the first network device; wherein N and M are integers greater than zero, and N is greater than or equal to M.

In one possible design, the apparatus further includes:

a selecting module 703 for selecting i adjacent TRPs from the i second TRPs, generating TRP selection information based on the i adjacent TRPs;

the sending module 701 is further configured to send the TRP selection information to the first network device, where the TRP selection information is used to indicate the i adjacent TRPs selected by the apparatus, so that the first network device selects the N first TRPs from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.

In one possible design, the apparatus further includes:

a receiving module 704, configured to receive, before the selecting module 703 apparatus selects i adjacent TRPs from the i second TRPs, reported adjacent configuration information from the first network device, where the reported adjacent configuration information is used to instruct the apparatus to select the i adjacent TRPs from the i second TRPs, where i ≧ i, and l is an integer greater than zero.

In one possible design, the reporting proximity configuration information includes at least one of the following information elements: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRPs.

In a possible design, the sending module 701 is further configured to report location information of the apparatus to the first network device, where the location information is used for the first network device to select the N first TRPs.

In one possible design, the apparatus further includes: a receiving module 704, configured to receive positioning reporting configuration information from the first network device before the sending module 701 reports the location information of the device to the first network device, where the positioning reporting configuration information is used to instruct the device to report the location information; wherein, the positioning reporting configuration information comprises at least one of the following cells: the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.

The selection module 703 and the receiving module 704 are optional, and are indicated by dashed lines in fig. 7.

For specific implementation of the method steps executed by each module in the apparatus, reference may be made to the specific implementation of the method steps executed by the terminal device in the foregoing method embodiment, and details are not described here again.

Based on the same technical concept, referring to fig. 8, an embodiment of the present application further provides a communication apparatus 800, including:

a selecting module 801 configured to select N first transmission and reception points TRP; a sending module, configured to send a signaling to a second network device where the N first TRPs are located, so as to instruct the second network device to turn on a receiver and perform signal measurement on sounding reference signals SRS received by the N first TRPs;

a receiving module 802, configured to receive a signal measurement result sent by the second network device;

an allocating module 803, configured to determine, based on the signal measurement result, M TRPs allocated to the terminal device for access, where N and M are integers greater than zero, and N is greater than or equal to M.

Based on the same technical concept, referring to fig. 9, an embodiment of the present application further provides a communication apparatus 900, including:

a receiving module 901, configured to receive a signaling from a first network device, where there are N first TRPs on the apparatus;

a measurement module 902, configured to turn on a receiver according to the signaling, and perform signal measurement on sounding reference signals SRS received by the N first TRPs;

a sending module 903, configured to send a signal measurement result to the first network device.

In one possible design, the first network device is a baseband processing unit, BBU, and the apparatus is an active antenna unit, AAU; or, the first network device is a centralized unit CU, and the apparatus is a distributed unit DU; or, the first network device is a centralized unit control plane CU-CP, and the apparatus is a DU.

For a specific implementation manner of the method steps executed by each module in the apparatus, reference may be made to a specific implementation manner of the method steps executed by the second network device in the foregoing embodiment, and details are not described here again.

Based on the same technical concept, referring to fig. 10, an embodiment of the present application further provides a communication apparatus 1000, including:

a transceiver 1001 and a processor 1002, wherein the processor 1002 is coupled to the transceiver 1001, and the processor 1002 and the transceiver 1001 are capable of executing the method executed by the first network device, the second network device or the terminal device in the above method embodiments in cooperation.

The processor 1002 may include a Central Processing Unit (CPU) or an Application Specific Integrated Circuit (ASIC), may include one or more Integrated circuits for controlling program execution, may include a hardware Circuit developed using a Field Programmable Gate Array (FPGA), and may include a baseband chip.

The transceiver 1001 may be used for network communication with an external device, for example, the external device may be communicated with a network such as an ethernet, a radio access network, a wireless local area network, or a wired network.

The processor 1002 and the transceiver 1001 may be connected by a bus, or may be connected to the processor by a dedicated connection line, which is not limited herein.

The processor 1002 is programmed to solidify the code corresponding to the method shown in the foregoing description into a chip, so that the chip can execute the method shown in the foregoing embodiments when running. How to program the processor 1002 is well known to those skilled in the art and will not be described herein.

Based on the same technical concept, referring to fig. 11, an embodiment of the present application further provides a communication apparatus 1100, including a processor 1101 and a memory 1102; the memory 1102 is used to store computer-executable instructions; the processor 1101 is configured to execute the computer-executable instructions stored in the memory 1102 to enable the communication apparatus to execute the method executed by the first network device, the second network device or the terminal device in the method embodiments.

The number of the memory 1102 may be one or more. The Memory 1102 may include a Read Only Memory (ROM), a Random Access Memory (RAM), a disk Memory, and the like. The memory 1102 may be used for storing program codes required for the processor 1101 to perform tasks, and may also be used for storing data and the like. Wherein the memory 1102 is an optional functional module rather than a mandatory functional module.

The processor 1101 and the memory 1102 may be connected by a bus, or may be connected to the processor by a dedicated connection, which is not limited herein.

The processor 1101 is programmed to solidify the code corresponding to the method shown in the foregoing into the chip, so that the chip can execute the method shown in the foregoing embodiment when running. How the processor 1101 is programmed is well known to those skilled in the art and will not be described in detail herein.

Based on the same technical concept, referring to fig. 12, an embodiment of the present application further provides a communication apparatus 1200, including a processor 1201 and an interface circuit 1202; the interface circuit 1202 is configured to receive a code instruction and transmit the code instruction to the processor 1201; the processor 1201 executes the code instructions to perform the method performed by the first network device, the second network device, or the terminal device in the method embodiments described above.

Based on the same technical concept, an embodiment of the present application further provides a communication system, including a network device and a terminal device, where the network device is configured to execute the method executed by the first network device in the foregoing method embodiment, and the terminal device is configured to execute the method executed by the terminal device in the foregoing method embodiment.

Based on the same technical concept, the embodiment of the present application further provides a communication system, which includes a first network device 1401 for performing the method performed by the first network device in the above method embodiment, and a second network device for performing the method performed by the second network device in the above method embodiment.

Based on the same technical concept, the present application also provides a computer-readable storage medium for storing instructions, which when executed, cause the method performed by the first network device, the second network device, or the terminal device in the above method embodiments to be implemented.

Based on the same technical concept, an embodiment of the present application further provides a chip, where the chip is coupled with a memory, and is configured to read and execute the program instructions stored in the memory, so as to implement the method executed by the first network device, the second network device, or the terminal device in the above method embodiments.

Based on the same technical concept, embodiments of the present application further provide a computer program product including instructions stored therein, which when run on a computer, cause the computer to perform the method performed by the first network device, the second network device, or the terminal device in the above method embodiments.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

A method for accessing a terminal device to a network is characterized by comprising the following steps:

a first network device selects N first Transmission and Reception Points (TRP) to perform signal measurement to obtain a signal measurement result, wherein the first TRP is connected with the first network device or connected with the first network device through a second network device;

and the first network equipment determines M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers greater than zero, and N is greater than or equal to M.
The method of claim 1, wherein the method further comprises:

the first network equipment receives TRP selection information from the terminal equipment, wherein the TRP selection information is used for indicating i adjacent TRPs selected by the terminal equipment to the first network equipment, the first network equipment selects the N first TRPs from the i adjacent TRPs, i is an integer larger than zero, and i is larger than or equal to N.
The method of claim 2, prior to the first network device receiving TRP selection information from the terminal device, further comprising:

and the first network equipment sends report adjacent configuration information to the terminal equipment to indicate the terminal equipment to select i adjacent TRPs from i second TRPs, wherein l is not less than i, and l is an integer greater than zero.
The method of claim 3, wherein the reporting proximity configuration information comprises at least one of the following information elements: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRP.
The method of claim 1, wherein the method further comprises:

and the first network equipment receives the position information of the terminal equipment reported by the terminal equipment, wherein the position information is used for the first network equipment to select the N first TRPs.
The method of claim 5, wherein before the first network device receives the location information of the terminal device reported by the terminal device, the method further comprises:

the first network equipment sends positioning reporting configuration information to the terminal equipment to indicate the terminal equipment to report the position information; wherein, the positioning reporting configuration information includes at least one of the following Information Elements (IE): the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.
The method according to any of claims 1-6, characterized in that the first network device chooses the N first TRPs according to one or more of the following rules:

TRP with the distance from the terminal equipment not exceeding a threshold value;

TRP satisfying a threshold with the load;

TRPs in a white list, wherein all TRPs in the white list are TRPs which are allowed to be accessed by the terminal equipment.
The method of any one of claims 1-6, wherein the N first TRPs are located at the first network device.
The method of any one of claims 1-7, wherein the N first TRPs are located at a second network device.
The method of claim 9, wherein the first network device is a baseband processing unit (BBU), and the second network device is an Active Antenna Unit (AAU); or alternatively

The first network device is a centralized unit CU, and the second network device is a distributed unit DU; or

The first network device is a centralized unit control plane CU-CP, and the second network device is a DU.
A method for accessing a terminal device to a network is characterized by comprising the following steps:

a terminal device sends Sounding Reference Signals (SRS) to N first Transmission and Reception Points (TRP) selected by a first network device, wherein the SRS is used for the first network device to perform signal measurement on the N selected first TRP, and M TRPs allocated to the terminal device for access are determined based on a signal measurement result;

the M TRPs allocated by the terminal equipment from the first network equipment are accessed to a network; wherein N and M are integers greater than zero, and N is greater than or equal to M.
The method of claim 11, wherein the method further comprises:

the terminal equipment selects i adjacent TRPs from the l second TRPs, and generates TRP selection information based on the i adjacent TRPs;

the terminal device sends the TRP selection information to the first network device, wherein the TRP selection information is used for indicating the i adjacent TRPs selected by the terminal device, so that the first network device selects the N first TRPs from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.
The method of claim 12, before the terminal device selects i adjacent TRPs from i second TRPs, further comprising:

the terminal device receives report proximity configuration information from the first network device, wherein the report proximity configuration information is used for indicating the terminal device to select i adjacent TRPs from the i second TRPs, wherein l is greater than or equal to i, and l is an integer greater than zero.
The method of claim 13, wherein the reporting proximity configuration information comprises at least one of the following information elements: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRP.
The method of claim 11, wherein the method further comprises:

and the terminal equipment reports the position information of the terminal equipment to the first network equipment, wherein the position information is used for the first network equipment to select the N first TRPs.
The method of claim 15, wherein before the terminal device reports the location information of the terminal device to the first network device, further comprising:

the terminal equipment receives positioning reporting configuration information from the first network equipment, wherein the positioning reporting configuration information is used for indicating the terminal equipment to report the position information; wherein, the positioning reporting configuration information comprises at least one of the following cells: the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.
The method of any one of claims 11-16, wherein the N first TRPs are located at the first network device.
The method of any one of claims 11-16, wherein the N first TRPs are located at a second network device.
The method of claim 17 or 18, wherein the first network device is a baseband processing unit, BBU, and the second network device is an active antenna unit, AAU; or

The first network device is a centralized unit CU, and the second network device is a distributed unit DU; or alternatively

The first network device is a centralized unit control plane CU-CP, and the second network device is a DU.
A method for accessing a network by a terminal device is characterized by comprising the following steps:

the first network equipment selects N first Transmission and Reception Points (TRP);

the first network equipment sends signaling to second network equipment where the N first TRPs are located so as to instruct the second network equipment to open a receiver and perform signal measurement on Sounding Reference Signals (SRSs) received by the N first TRPs;

and the first network equipment receives the signal measurement result sent by the second network equipment, and determines M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers greater than zero, and N is greater than or equal to M.
The method of claim 20, wherein the signal measurement is used to indicate a channel status in the N first TRPs.
The method of claim 20 or 21, wherein the first network device is a baseband processing unit, BBU, and the second network device is an active antenna unit, AAU; or alternatively

The first network device is a centralized unit CU, and the second network device is a distributed unit DU; or

The first network device is a centralized unit control plane CU-CP, and the second network device is a DU.
A method for accessing a terminal device to a network is characterized by comprising the following steps:

a second network device receives signaling from a first network device, wherein the second network device has N first TRPs;

the second network equipment opens a receiver according to the signaling, and performs signal measurement on Sounding Reference Signals (SRS) received by the N first TRPs;

the second network device sends a signal measurement result to the first network device.
The method of claim 23, wherein the signal measurement is used to indicate a channel status in the N first TRPs.
The method of claim 23 or 24, wherein the first network device is a baseband processing unit, BBU, and the second network device is an active antenna unit, AAU; or

The first network device is a centralized unit CU, and the second network device is a distributed unit DU; or

The first network device is a centralized unit control plane CU-CP, and the second network device is a DU.
A communications apparatus, comprising:

the selection module is used for selecting N first Transmission and Reception Points (TRP) to perform signal measurement to obtain a signal measurement result, wherein the first TRP is connected with the connection or connected with the connection through second network equipment;

and the allocation module is used for determining M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers larger than zero, and N is larger than or equal to M.
The apparatus of claim 26, wherein the apparatus further comprises:

a receiving module, configured to receive TRP selection information from the terminal device, where the TRP selection information is used to indicate i adjacent TRPs selected by the terminal device, where the N first TRPs are selected from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.
The apparatus of claim 27, wherein the apparatus further comprises:

a sending module, configured to send report proximity configuration information to the terminal device before the receiving module receives the TRP selection information from the terminal device, so as to instruct the terminal device to select i adjacent TRPs from i second TRPs, where i is greater than or equal to i, and l is an integer greater than zero.
The apparatus as claimed in claim 28, wherein said reporting proximity configuration information comprises at least one of the following information elements: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRP.
The apparatus of claim 26, wherein the apparatus further comprises:

a receiving module, configured to receive location information of the terminal device, where the location information is used to select the N first TRPs, where the location information is reported by the terminal device.
The apparatus of claim 30, wherein the apparatus further comprises:

a sending module, configured to send positioning reporting configuration information to the terminal device before the receiving module receives the location information of the terminal device reported by the terminal device, so as to instruct the terminal device to report the location information; wherein, the positioning reporting configuration information includes at least one of the following Information Elements (IE): the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.
The apparatus of any one of claims 26-31, wherein the selection module is configured to select the N first TRPs according to one or more of the following rules:

TRP with the distance from the terminal equipment not exceeding a threshold value;

TRP satisfying a threshold with the load;

TRPs in a white list, wherein all TRPs in the white list are TRPs which are allowed to be accessed by the terminal equipment.
The apparatus of any one of claims 26-31, wherein the N first TRPs are located on the apparatus.
The apparatus of any one of claims 26-32, wherein the N first TRPs are located at a second network device.
The apparatus of claim 34, wherein the apparatus is a baseband processing unit (BBU), the second network device is an Active Antenna Unit (AAU); or

The device is a centralized unit CU, and the second network equipment is a distributed unit DU; or

The device is a centralized unit control plane CU-CP, and the second network device is a DU.
A communications apparatus, comprising:

a sending module, configured to send a Sounding Reference Signal (SRS) to N first Transmission and Reception Points (TRPs) selected by a first network device, where the SRS is used for the first network device to perform signal measurement on the N selected first TRPs, and determine, based on a signal measurement result, M TRPs allocated to the terminal device for access;

an access module for accessing the network from the M TRPs allocated by the first network device; wherein N and M are integers greater than zero, and N is greater than or equal to M.
The apparatus of claim 36, wherein the apparatus further comprises:

a selection module for selecting i adjacent TRPs from the l second TRPs, generating TRP selection information based on the i adjacent TRPs;

the sending module is further configured to send the TRP selection information to the first network device, where the TRP selection information is used to indicate the i adjacent TRPs selected by the apparatus, so that the first network device selects the N first TRPs from the i adjacent TRPs, i is an integer greater than zero, and i is greater than or equal to N.
The apparatus of claim 37, wherein the apparatus further comprises:

a receiving module, configured to receive, before the selecting module selects i adjacent TRPs from the i second TRPs, reported adjacent configuration information from the first network device, where the reported adjacent configuration information is used to instruct the apparatus to select the i adjacent TRPs from the i second TRPs, where i ≧ i, and l is an integer greater than zero.
The apparatus as claimed in claim 38, wherein the reporting proximity configuration information comprises at least one of the following information elements: TRP identity, location information, or selection rules of adjacent TRPs of the/second TRP.
The apparatus of claim 36, wherein the sending module is further configured to report location information of the apparatus to the first network device, the location information being used by the first network device to select the N first TRPs.
The apparatus of claim 40, wherein the apparatus further comprises:

a receiving module, configured to receive positioning reporting configuration information from the first network device before the sending module reports the location information of the device to the first network device, where the positioning reporting configuration information is used to instruct the device to report the location information; wherein, the positioning reporting configuration information comprises at least one of the following cells: the period of positioning reporting, the duration of each positioning reporting and the triggering event of the positioning reporting.
The apparatus of any one of claims 36-41, wherein the N first TRPs are located at the first network device.
The apparatus of any one of claims 36-41, wherein the N first TRPs are located at a second network device.
The apparatus of claim 42 or 43, wherein the first network device is a baseband processing unit (BBU), the second network device is an Active Antenna Unit (AAU); or

The first network device is a centralized unit CU, and the second network device is a distributed unit DU; or

The first network device is a centralized unit control plane CU-CP, and the second network device is a DU.
A communications apparatus, comprising:

a selection module, configured to select N first transmission reception points TRP;

a sending module, configured to send a signaling to a second network device where the N first TRPs are located, so as to instruct the second network device to turn on a receiver and perform signal measurement on sounding reference signals SRS received by the N first TRPs;

a receiving module, configured to receive a signal measurement result sent by the second network device;

and the allocation module is used for determining M TRPs allocated to the terminal equipment for access based on the signal measurement result, wherein N and M are integers larger than zero, and N is larger than or equal to M.
The apparatus of claim 45, wherein the signal measurement is used to indicate a channel state in the N first TRPs.
The apparatus of claim 45 or 46, wherein the apparatus is a baseband processing unit (BBU), the second network device is an Active Antenna Unit (AAU); or

The device is a centralized unit CU, and the second network equipment is a distributed unit DU; or

The device is a centralized unit control plane CU-CP, and the second network device is a DU.
A communications apparatus, comprising:

a receiving module, configured to receive a signaling from a first network device, where there are N first TRPs on the apparatus;

a measurement module, configured to turn on a receiver according to the signaling, and perform signal measurement on sounding reference signals SRS received by the N first TRPs;

and the sending module is used for sending the signal measurement result to the first network equipment.
The apparatus of claim 48, wherein the signal measurement is indicative of a channel state in the N first TRPs.
The apparatus of claim 48 or 49, wherein the first network device is a baseband processing unit (BBU), the apparatus is an Active Antenna Unit (AAU); or

The first network device is a centralized unit CU, and the apparatus is a distributed unit DU; or

The first network device is a centralized unit control plane CU-CP, and the device is a DU.
A communication device comprising a transceiver and a processor, the processor being coupled to the transceiver and the processor and the transceiver cooperating to perform the method of any one of claims 1-10 or 11-19, 20-22 or 23-25.
A communication device comprising a processor and a memory; the memory is used for storing computer execution instructions; the processor is configured to execute computer-executable instructions stored by the memory to cause the communication device to perform the method of any of claims 1-10 or 11-19, 20-22, or 23-25.
A communication device comprising a processor and interface circuitry; the interface circuit is used for receiving code instructions and transmitting the code instructions to the processor; the processor executes the code instructions to perform the method of any of claims 1-10 or 11-19, 20-22 or 23-25.
A computer-readable storage medium, wherein the readable storage medium is configured to store instructions that, when executed, cause the method of any of claims 1-10 or 11-19, 20-22, or 23-25 to be implemented.
A chip coupled to a memory for reading and executing program instructions stored in the memory for implementing a method as claimed in any one of claims 1-10 or 11-19, 20-22 or 23-25.
A computer program product comprising instructions stored thereon, which, when run on a computer, cause the computer to perform the method of any one of claims 1-10 or 11-19, 20-22 or 23-25.
A communication system comprising a network device configured to perform the method of any of claims 1-10 and a terminal device configured to perform the method of any of claims 11-19.
A communication system comprising a first network device configured to perform the method of any of claims 20-22 and a second network device configured to perform the method of any of claims 23-25.