CN112333811B

CN112333811B - Method and device for configuring sending power of synchronization signal/physical broadcast channel block

Info

Publication number: CN112333811B
Application number: CN201910716015.0A
Authority: CN
Inventors: 袁世通; 刘凤威; 邱晶
Original assignee: Chengdu Huawei Technology Co Ltd
Current assignee: Chengdu Huawei Technology Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2022-04-05
Anticipated expiration: 2039-08-05
Also published as: WO2021022887A1; CN112333811A

Abstract

The embodiment of the application provides a method and a device for configuring the sending power of a synchronization signal/physical broadcast channel block, which are used for determining the sending power of a return link SS/PBCH block by an IAB node. The method comprises the following steps: the first network device determines a transmit power for a second device to discover and measure a SS/PBCH block of the first network device, and transmits the SS/PBCH block at the transmit power, wherein the transmit power of the SS/PBCH block is related to a reference transmit power.

Description

Method and device for configuring sending power of synchronization signal/physical broadcast channel block

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for configuring transmit power of a synchronization signal/physical broadcast channel block.

Background

Compared with Long Term Evolution (LTE), the New Radio (NR) technology of 5G can use a larger bandwidth, for example, a millimeter wave frequency band, and a large-scale antenna and a multi-beam system can be applied, so that the NR system of 5G can provide a higher system rate, and provide conditions for developing and applying Integrated Access and Backhaul (IAB) technology of 5G NR. An IAB node, that is, the node integrates a wireless access link and a wireless backhaul link, where the access link is a communication link between a User Equipment (UE) and the IAB node, and the wireless backhaul link is a communication link between the IAB nodes for data backhaul, so that the IAB node does not need a wired transmission network for data backhaul.

For the IAB node, considering the half-duplex limitation, the IAB node cannot receive and transmit data at the same time on the backhaul link and the access link, i.e., when the IAB node receives backhaul link data of the upper node, the IAB node cannot transmit data on the access link, and when the IAB node transmits data on the backhaul link to the upper node, the IAB node cannot receive data on the access link.

Currently, NR defines a backhaul link synchronization signal/physical broadcast channel block (SS/PBCH block, SSB) which is used for mutual discovery and measurement of IAB nodes. However, the existing protocol does not support configuring the transmission power for the backhaul link SSB, and the IAB cannot determine the transmission power of the backhaul link SSB when the backhaul link SSB is not configured with power.

Disclosure of Invention

The application provides a method and a device for configuring SS/PBCH block sending power, which are used for determining the sending power of a return link SSB by an IAB node.

In a first aspect, a method for configuring SS/PBCH block transmit power according to an embodiment of the present application includes: the first network device determines a transmit power of a first SS/PBCH block, and transmits the first SS/PBCH block at the transmit power, wherein the transmit power of the first SSB is related to a reference transmit power, and the first SS/PBCH block is used for the second device to discover and measure the first network device. In the embodiment of the application, the network device may determine the transmission power of the backhaul link SS/PBCH block according to the reference transmission power, so that the power of the network device transmitting the access link SS/PBCH block may be different from the transmission power of the backhaul link SS/PBCH block. One advantage of such a configuration is that network robustness can be increased, even if the range of access services provided by the network device is small, but it can still support a large range of mutual discovery, so that more potential backhaul nodes can be discovered. Another advantage is that the network device transmits the access link SS/PBCH block with a larger transmit power, so that more terminals can be accessed within the coverage area of the network device. At this time, the network device may transmit the backhaul link SSB with a smaller power, that is, when the capacity of the backhaul link is limited, the power consumption of the network device may be saved by adjusting the transmission power of the network device.

In a possible design, when the first network device determines the transmit power of the first SS/PBCH block, specifically: and receiving configuration information, wherein the configuration information is used for configuring the first SS/PBCH block. When the configuration information does not include information indicating the transmission power of the first SS/PBCH block, the transmission power of the first SS/PBCH block is determined based on a reference transmission power, where the reference transmission power may be a transmission power at which the first network device transmits a second SS/PBCH block to the first terminal device, or the reference transmission power may also be a transmission power at which the second network device transmits a third SS/PBCH block to the second terminal device, where the second network device is an upper node of the first network device. Through the design, when the configuration information does not configure the transmission power of the first SS/PBCH block, the network device may determine the backhaul link SS/PBCH block according to the transmission power of the access link SS/PBCH block of the network device or the transmission power of the access link SS/PBCH block of the superior node.

In a possible design, when the first network device determines the transmit power of the first SS/PBCH block, the method may further include: and receiving configuration information, wherein the configuration information is used for configuring the first SS/PBCH block. When the configuration information includes information indicating a transmission power of the first SS/PBCH block, the transmission power of the first SS/PBCH block may be determined based on the transmission power indicated according to the configuration information. In the above design, by explicitly configuring the transmission power of the backhaul link SS/PBCH block, the network device may determine the transmission power of the backhaul link SS/PBCH block according to the configuration information.

In one possible design, the first network device may employ the reference transmit power as the transmit power for transmitting the first SS/PBCH block when determining the transmit power for the first SS/PBCH block based on the reference transmit power. The above design provides a rule whereby a network device may determine a transmit power of a first SS/PBCH block based on a reference transmit power.

In one possible design, the configuration information may also include a power offset value. When the first network device determines the transmit power of the first SS/PBCH block based on the reference transmit power, the first network device determines the transmit power of the first SS/PBCH block based on the reference transmit power and the power offset value. In the above design, the network device determines the transmit power of the backhaul link SS/PBCH block according to the power offset value in combination with the reference transmit power through the power offset value indication.

In one possible design, the configuration information may also include a plurality of power offset values, one power offset value associated with one first SS/PBCH block. When the first network device determines the transmit power of the first SS/PBCH block based on the reference transmit power, the transmit power of the first SS/PBCH block may be determined based on the reference transmit power and a power offset value associated with the first SS/PBCH block. In the above design, different power offset values are configured for different backhaul link SS/PBCH blocks, so that flexibility of transmission power of backhaul link SS/PBCH blocks can be improved.

In one possible design, if the first network device is configured with 1 second SS/PBCH block configuration information, the reference transmit power may be a transmit power included in the second SS/PBCH block configuration information. If the first network device is configured with a plurality of second SS/PBCH block configuration information, the reference transmit power may be a transmit power included in any one of the plurality of second SS/PBCH block configuration information, or the reference transmit power may be a transmit power included in a specific one of the plurality of second SS/PBCH block configuration information. With the above design, the network device may determine which second SS/PBCH block transmission power to select may be used as the reference transmission power when a plurality of second SS/PBCH block configuration information is configured, that is, when there are a plurality of second SS/PBCH block transmission powers.

In one possible design, the specific second SS/PBCH block configuration information may be second SS/PBCH block configuration information activated for a first one of the plurality of second SS/PBCH block configuration information. The above design defines a rule, which the network device may follow to select one of the transmit powers included in the plurality of second SS/PBCH block configuration information as the reference transmit power.

In one possible design, the specific second SS/PBCH block configuration information may also be a second SS/PBCH block configuration information configured for the first one of the plurality of second SS/PBCH block configuration information. The above design defines another rule, which the network device may follow to select one of the transmit powers included in the plurality of second SS/PBCH block configuration information as the reference transmit power.

In one possible design, the particular second SS/PBCH block configuration information may also be a second SS/PBCH block configuration information for which a first one of the plurality of second SS/PBCH block configuration information is received. The above design defines yet another rule, which the network device may follow to select one of the transmit powers included in the plurality of second SS/PBCH block configuration information as the reference transmit power.

In one possible design, the specific second SS/PBCH block configuration information may also be a second SS/PBCH block configuration information used for configuring the primary cell in the plurality of second SS/PBCH block configuration information. The above design defines a rule, which the network device may follow to select one of the transmit powers included in the plurality of second SS/PBCH block configuration information as the reference transmit power.

In a possible design, the configuration information may further include first indication information, where the first indication information is used to indicate a reference cell or a reference frequency point of the first network device, and the specific second SS/PBCH block configuration information may also be second SS/PBCH block configuration information corresponding to the reference cell or the reference frequency point. The above design defines a rule, and the network device may select one of the transmission powers included in the plurality of second SS/PBCH block configuration information as a reference transmission power according to an indication about a reference cell or a reference frequency point in the configuration information.

In one possible design, the configuration information includes second indication information, where the second indication information is used to indicate a second SS/PBCH block serving as a reference signal, and the specific second SS/PBCH block configuration information may also be second SS/PBCH block configuration information corresponding to the second SS/PBCH block serving as the reference signal. The above design defines a rule that the network device may select one of the transmit powers included in the plurality of second SS/PBCH block configuration information as a reference transmit power according to an indication of a reference signal in the configuration information.

In one possible design, the configuration information includes frequency domain location information of a first SS/PBCH block, and the specific second SS/PBCH block configuration information may be second SS/PBCH block configuration information in the plurality of second SS/PBCH block configuration information, where the frequency domain location information is the same as the frequency domain location information carried by the configuration information. The above design defines a rule that a network device may select one of the transmit powers included in the plurality of second SS/PBCH block configuration information as a reference transmit power according to the frequency domain location information of the first SS/PBCH block.

In one possible design, the specific second SS/PBCH block configuration information may also be second SS/PBCH block configuration information carrying a reference indication in the plurality of second SS/PBCH block configuration information. The above design defines a rule that the network device may select, as the reference transmit power, a transmit power included in the second SS/PBCH block configuration information carrying the reference indication from among the plurality of second SS/PBCH block configuration information.

In one possible design, the first network device may also receive a system information block broadcast by the second network device, where the system information block includes a transmit power of one or more third SS/PBCH blocks. Through the design, the network equipment can acquire the transmitting power of the third SS/PBCH block transmitted by the upper node through the system information block message transmitted by the upper node.

In one possible design, the system information block may be system information block 1 (SIB 1).

In one possible design, when one transmission power is included in the system information block, the reference transmission power may be the transmission power included in the system information block. Alternatively, when the system information block includes a plurality of transmission powers, the reference transmission power may be any one of the plurality of transmission powers included in the system information block, or the reference transmission power may be a specific transmission power among the plurality of transmission powers included in the system information block. Through the design, the network device can determine which third SS/PBCH block transmission power to select as the reference transmission power when acquiring the transmission powers of the third SS/PBCH blocks of the upper node.

In one possible design, the specific transmission power may be a transmission power corresponding to a reference cell or a reference frequency point of the second network device. The above design defines a rule, which the network device may follow to select one of the plurality of transmission powers included in the system information block as the reference transmission power.

In one possible design, the specific transmit power may also be a transmit power corresponding to a third SS/PBCH block of the second network device as a reference signal. The above design defines a rule, which the network device may follow to select the transmission power of the reference signal of the upper node as the reference transmission power.

In one possible design, the particular transmit power may also be a transmit power of a third SS/PBCH block currently accessed by the first network device or currently activated by the second network device. The above design defines a rule, which the network device may follow to select one of the plurality of transmission powers included in the system information block as the reference transmission power.

In a possible design, the configuration information may further include frequency domain location information of the first SS/PBCH block, and the specific transmit power may be a transmit power of a third SS/PBCH block whose frequency domain location information is the same as the frequency domain location information carried by the configuration information. The above design defines a rule that a network device may select one of a plurality of transmission powers included in a system information block as a reference transmission power according to frequency domain location information of a first SS/PBCH block.

In a second aspect, the present application provides an SS/PBCH block transmit power configuration apparatus, which may be a network device, or a chip or chip set in the network device. The apparatus may include a processing unit and a transceiver unit. When the apparatus is a network device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the apparatus may further include a storage module, which may be a memory; the storage module is configured to store instructions, and the processing unit executes the instructions stored by the storage module, so as to enable the network device to perform the corresponding functions in the first aspect. When the apparatus is a chip or a chipset within a network device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored in a storage module (e.g., a register, a cache, etc.) in the chip or the chipset, or a storage module (e.g., a read-only memory, a random access memory, etc.) in the network device, which is located outside the chip or the chipset, so as to enable the network device to perform the corresponding functions in the first aspect.

In a third aspect, an apparatus for configuring SS/PBCH block transmission power is provided, including: a processor, a communication interface, and a memory. The communication interface is used for transmitting information, and/or messages, and/or data between the device and other devices. The memory is configured to store computer-executable instructions, and when the apparatus is run, the processor is configured to execute the computer-executable instructions stored in the memory, so as to enable the apparatus to perform the SS/PBCH block transmit power configuration method as set forth in the first aspect or any design of the first aspect.

In a fourth aspect, the present application further provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform the SS/PBCH block transmission power configuration method according to the first aspect or any design of the first aspect.

In a fifth aspect, the present application further provides a computer program product comprising instructions, which when run on a computer, cause the computer to perform the method for SS/PBCH block transmit power configuration as set forth in the first aspect or any of the first aspect designs above.

In a sixth aspect, the present application further provides a network system, where the network system includes a first network device and a second device, where the first network device is the apparatus in the second aspect or the third aspect.

Drawings

Fig. 1 is a schematic architecture diagram of an IAB system according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an SSB provided in an embodiment of the present application;

fig. 3 is a schematic diagram of an implementation method for sending a SS/PBCH block staggered in time according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 5 is a diagram illustrating results of another network device according to an embodiment of the present application;

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

fig. 7 is a schematic structural diagram of another IAB node according to an embodiment of the present application;

fig. 8 is a schematic flowchart of a method for configuring SS/PBCH block transmit power according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram illustrating an effect of increasing the transmission power of the backhaul link SS/PBCH block according to an embodiment of the present application;

fig. 10 is a schematic diagram illustrating an effect of reducing the SS/PBCH block transmission power of the backhaul link according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an SS/PBCH block transmit power configuration apparatus according to an embodiment of the present disclosure;

fig. 12 is a schematic structural diagram of another SS/PBCH block transmit power configuration apparatus according to an embodiment of the present application.

Detailed Description

With the continuous development of mobile communication technology, the spectrum resources are increasingly tense. In order to improve spectrum utilization, future base station deployments will be more intensive. In addition, dense deployment may also avoid the occurrence of coverage holes. Under a conventional cellular network architecture, a base station establishes a connection with a core network through an optical fiber. In many scenarios, however, the deployment cost of optical fibers is very high. The wireless Relay Node (RN) establishes connection with the core network through the wireless return link, and can save part of optical fiber deployment cost.

For better understanding of the embodiments of the present invention, a network architecture used in the embodiments of the present invention will be described below. Referring to fig. 1, fig. 1 is a schematic structural diagram of a communication system to which the present embodiment is applied.

It should be noted that, the communication systems mentioned in the embodiments of the present application include, but are not limited to: internet of things (IoT) system, car networking, Wireless Local Access Network (WLAN) system, LTE system, next generation 5G mobile communication system, or communication system after 5G, such as NR, device to device (D2D) communication system.

In the communication system shown in fig. 1, an integrated access backhaul IAB system is presented. An IAB system at least includes a Donor base station (Donor gNB, DgNB), and one or more terminal equipments (UE is taken as an example in fig. 1) 101 and one or more IAB nodes (TRP is taken as an example in fig. 1) rrtrp 110 served by the Donor base station. The rrtp 110 is connected to the donor base station 100, and one or more UEs 111 served by the rrtp 110, through a wireless backhaul link 113.

The IAB system can also include another one or more IAB node trp 120, the one or more IAB node trp 120 connected to the IAB node trp 110 over a wireless backhaul link 123 for access to the system and its served one or more UEs 121. In fig. 1, the IAB nodes rrp 110 and rrp 120 are both connected to the network through wireless backhaul links. In the present application, the wireless backhaul links are all from the viewpoint of the IAB node, for example, the wireless backhaul link 113 is the backhaul link of the IAB node rrp 110, and the wireless backhaul link 123 is the backhaul link of the IAB node rrp 120. As shown in fig. 1, one IAB node, e.g., 120, may be connected to another IAB node, e.g., 110, via a wireless backhaul link, e.g., 123, to connect to the network, and the IAB system may be connected to the network via multiple levels of wireless relays. Generally, a node providing wireless backhaul link resources, such as 110, is referred to as an upstream node (or, referred to as an upper node), and an IAB node accessing a network through a wireless backhaul link, such as 120, is referred to as a downstream node (or, referred to as a lower node). In general, a downstream node may be considered a terminal of an upstream node. It should be understood that in the IAB system shown in fig. 1, one IAB node is connected to one upstream node, but in future IAB systems, in order to improve the reliability of the wireless backhaul link, one IAB node, e.g., 120, may have multiple upstream nodes simultaneously serving one IAB node. In this application, the

terminal equipment UE

102, 112, 122 may be a stationary or mobile equipment. For example, the mobile device may be a mobile phone, a smart terminal, a tablet (tablet), a notebook (laptop), a video game console, a multimedia player, or even a mobile or stationary IAB node, etc. Stationary devices are typically located at fixed locations such as computers, access points (connected to a network such as an IAB node by a wireless link), etc. The name of the

iatb node rrp

110, 120 does not limit the scenario or network in which it is deployed, and may be any other name such as relay, RN, etc. The use of rrtp in this application is only a requirement for ease of description.

In fig. 1, all

wireless links

102, 112, 122, 113, 123 are bidirectional links, including uplink and downlink transmission links, and in particular,

wireless backhaul links

113, 123 may be used for upstream nodes to provide services for downstream nodes, such as upstream node 100 to provide wireless backhaul services for downstream node 110. The downlink transmission refers to transmission performed by an upstream node, such as node 100, being a downstream node, such as node 110, and the uplink transmission refers to transmission of data by a downstream node, such as node 110, to an upstream node, such as node 100. The node is not limited to being a network node or a UE, e.g. in the D2D scenario, a UE may serve other UEs as a relay node. The wireless backhaul link may in turn be an access link in some scenarios, e.g. backhaul link 123 may also be considered as an access link for node 110, and backhaul link 113 is also an access link for node 100.

Network devices include, but are not limited to: an evolved node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved node B (HNB)), a Base Band Unit (BBU), an LTE (evolved LTE, LTE) base station, an NR base station (next generation node B, gbb), or a base station of a next-generation communication system, and the like.

The IAB node is a specific name of the relay node, and is not limited to the configuration of the present application, and may be one of the network device and the terminal device having the forwarding function, or may be in an independent device form. In this application, an IAB node may refer broadly to any node or device with relay functionality. For example, the IAB node may be a module or device disposed on a mobile object, including but not limited to a device in the internet of things, such as a car, train, airplane, etc. The use of IAB node and relay node in this application should be understood to have the same meaning.

Terminal devices include, but are not limited to: any of a UE, a mobile station, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a terminal, a wireless communication device, a user agent, a Station (ST) in a Wireless Local Access Network (WLAN), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication functionality, a computing device, other processing devices connected to a wireless modem, a vehicle mounted device, a wearable device, a mobile station in a future 5G network, and a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc. In general, a relay node establishes a wireless backhaul link with one or more superordinate nodes, and accesses a core network through the superordinate nodes. The upper node may perform certain control (e.g., data scheduling, timing modulation, power control, etc.) on the relay node through various signaling. In addition, the relay node may serve a plurality of subordinate nodes. The upper node of the relay node may be a base station or another relay node. The lower node of the relay node may be a User Equipment (UE) or another relay node. In some cases, an upper node may also be referred to as an upstream node and a lower node may also be referred to as a downstream node.

The inband relay is a relay scheme that the return link and the access link share the same frequency band, and has the advantages of high spectrum efficiency, low deployment cost and the like because no extra spectrum resource is used. In-band relaying generally has a half-duplex constraint, and specifically, a relay node cannot transmit a downlink signal to its lower node when receiving a downlink signal transmitted by its upper node, and a relay node cannot transmit an uplink signal to its upper node when receiving an uplink signal transmitted by its lower node. The relay scheme of NR may be referred to as IAB, and the relay node is referred to as IAB node (IAB node).

The IAB node is for the IAB network, the sum of its available resources is fixed for the access link and backhaul link, but the resource partitioning between the access and backhaul links can be dynamically changed and the immediate needs of the terminal across the network are met.

In Long Term Evolution (LTE), a network device broadcasts a Common Reference Signal (CRS) for a UE to perform downlink synchronization and cell quality measurement. In 5G NR, as cellular communication evolves towards high frequencies, all downlink signals in the system are transmitted in the form of beams. Such signals that provide downlink synchronization in the form of beams are called synchronization signal/physical broadcast channel blocks (SS/PBCH blocks), and SS/PBCH blocks may also be called synchronization signal blocks (SS/PBCH blocks, SSBs). And the base station sends the SS/PBCH block to each direction in time in sequence, and finishes sending the SS/PBCH block in all directions within a period of time (the current protocol is within 5 ms). As shown in fig. 2, one SS/PBCH block is composed of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSs), and a Physical Broadcast Channel (PBCH). UEs in different locations may detect one or more SS/PBCH blocks.

The IAB node also needs to detect the SS/PBCH block sent by other network equipment when needing to access the network. However, due to half-duplex constraints, when the IAB node receives backhaul link data of the upper node, it cannot transmit data on the access link, and when the IAB node transmits data on the backhaul link to the upper node, it cannot receive data on the access link. Therefore, when measuring the SS/PBCH block sent by other network equipment, the IAB node cannot send the SS/PBCH block to the terminal equipment. The location where the IAB sends the SS/PBCH block itself needs to be different from other nodes. Fig. 3 is a possible implementation method for transmitting SS/PBCH block with time staggering. Wherein some SS/PBCH block transmissions are muted (muted) in order for different IAB nodes to measure each other, i.e. the grey transmission positions in fig. 3. When one IAB node does not send the SS/PBCH block, the SS/PBCH block sent by other nodes can be measured.

However, the method shown in fig. 3 has an impact on general UE access network devices because some SS/PBCH blocks may be muted. Currently, two SS/PBCH blocks can be sent by a network device, one is for a terminal to initially access the network device, and such SS/PBCH blocks can be referred to as access link (SSB). Another method for mutual discovery and measurement between network devices may refer to such SS/PBCH block as a backhaul link (SSB). In order to prevent the terminal from erroneously detecting the backhaul link SSB when initially accessing, the backhaul link SSB may be placed on an asynchronous grid frequency point, and therefore, the backhaul link SSB may also be referred to as an off-sync rat SSB.

The synchronization signal block (i.e., access link SSB) used for initial access by the terminal may also be used to measure discovery and measurement of the network device and other network devices. However, the synchronization signal block (i.e. backhaul link SSB) used for discovery and measurement of the network device and other network devices cannot be used for initial access of the terminal to the network device because the transmission frequency point is not on the terminal initial scanning frequency point (i.e. synchronization grid frequency point) defined by the protocol.

Currently, the access link SSB, for which there is no determination of how to configure, has two possible scenarios: 1. the STC of the access link SSB may be configured by the CU through a synchronization Signal Transmission Configuration (STC) of the access link SSB; 2. the signaling transfer protocol of the OAM configuration access link SSB may be an Internet Protocol (IP) protocol, configured by an operation and management (OAM) server.

And the STC of the backhaul link SSB is configured by the STC of the backhaul link SSB, and is as follows: agreements:

The configurable values of the parameters in STC for IAB node discovery and measurement are provided in the following：

·SSB center frequency:

o ARFCN-ValueNR

·SSB subcarrier spacing:

οFR1:15khz,30khz

οFR2:120khz,240khz

·SSB transmission periodicity:

ο5ms,10ms,20ms,40ms,80ms,160ms,320ms,640ms(agreed in RAN1#96bis)

·SSB transmission timing offset in half frame(s)

ο[0,…,(number of half frames within SSB transmission periodicity)–1]

·The index of SSBs to transmit(the SSBs to be transmitted in the half frame)

οSame as Rel-15

FFS additional parameter(s)other than above.

the information contained in the STC of the backhaul link SSB is: a center frequency point, a subcarrier interval, a transmission period, a half frame offset (i.e. which specific 5ms in an SSB period), and an index of the SSB (e.g. which specific one of 64 SSBs is transmitted and which is not transmitted). However, the existing protocol does not support configuring the transmission power for the backhaul link SSB, and it is not clear how the network device determines the transmission power of the backhaul link SSB when the backhaul link SSB is not configured with power. Based on this, the embodiment of the application provides a method and a device for configuring SS/PBCH block transmission power. The method and the device are based on the same technical conception, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The SS/PBCH block transmission power configuration method provided in the embodiment of the present application may be applied to the communication system shown in fig. 1, and it should be understood that fig. 1 is only an exemplary illustration, and does not specifically limit the number of terminal devices and network devices included in the communication system.

For example, the structure of the network device in the embodiment of the present application may be as shown in fig. 4. Specifically, the radio access network device may be divided into a Centralized Unit (CU) and at least one Distributed Unit (DU). The CU may be configured to manage or control at least one DU, and may also be referred to as a CU connected to at least one DU. This structure can separate the protocol layers of the radio access network equipment in the communication system, wherein part of the protocol layers are centrally controlled by the CU, and the rest or all of the functions of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU. Taking radio access network equipment as an example of a gNB, a protocol layer of the gNB includes a Radio Resource Control (RRC) layer, a Service Data Adaptation Protocol (SDAP) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a media access control sublayer (MAC) layer, and a physical layer. For example, the CU may be configured to implement the functions of the RRC layer, the SDAP layer, and the PDCP layer, and the DU may be configured to implement the functions of the RLC layer, the MAC layer, and the physical layer. The embodiment of the present application does not specifically limit the protocol stacks included in the CU and the DU.

The CUs in the embodiment of the present application may be further divided into a control plane (CU-CP) network element and a plurality of user plane (CU-UP) network elements. Wherein, the CU-CP can be used for control plane management, and the CU-UP can be used for user plane data transmission. The interface between the CU-CP and the CU-UP can be the E1 port. The interface between the CU-CP and the DU may be F1-C for transport of control plane signaling. The interface between CU-UP and DU may be F1-U for user plane data transmission. And the CU-UP can be connected through an Xn-U port to carry out user plane data transmission. For example, taking the gbb as an example, the structure of the gbb may be as shown in fig. 5.

Further, if the network device is a relay device, especially an IAB node, the network device may include a Mobile Termination (MT) function and a DU function. The IAB node communicates with a higher node through the MT, and the DU is a base station function module of the IAB node, which is used to implement the functions of the RLC layer, the MAC layer, and the physical layer, and is mainly responsible for scheduling, physical signal generation, and transmission, that is, the IAB node communicates with a lower node and the UE through the DU, as shown in fig. 6. The MT and DU of the IAB node have complete transceiver units and have an interface between them. It should be noted that the MT and the DU are logic modules, and in practice, both may share part of the sub-modules, such as a common transceiver antenna, a baseband processing unit, etc., as shown in fig. 7.

The plural in the present application means two or more.

In addition, it is to be understood that the terms first, second, etc. in the description of the present application are used for distinguishing between the descriptions and not necessarily for describing a sequential or chronological order.

The SS/PBCH block transmission power configuration method provided in the embodiments of the present application is specifically described below with reference to the accompanying drawings.

Referring to fig. 8, a flow chart of a method for configuring SS/PBCH block transmission power provided by the present application is shown, where the method includes:

s801, a first network device determines a transmit power of a first SS/PBCH block, where the transmit power of the first SS/PBCH block is related to a reference transmit power, and the first SS/PBCH block is used for other devices to discover and measure the first network device, where the other devices may be other IAB nodes.

In this embodiment of the application, the first network device may be a network device that performs data backhaul with other network devices, for example, the first network device may be a relay device RN, or the first network device may also be an IAB node, or may also be a DU of the RN, a DU of the IAB node, and the like, which is not limited herein.

Illustratively, the first SS/PBCH block may be a backhaul link SS/PBCH block, which may also be referred to as a backhaul link SSB for short.

S802, the first network device sends the first SS/PBCH block with the determined sending power.

Currently, there is no support for configuring the transmission power for the backhaul link SSB, and it is not clear how the network device determines the transmission power of the backhaul link SSB when the backhaul link SSB is not configured with power. In this embodiment, the network device may determine the transmission power of the backhaul link SSB according to the reference transmission power, so that the power of the network device transmitting the access link SSB may be different from the transmission power of the backhaul link SSB. One advantage of such a configuration is that it may increase network robustness, even though the range of access services provided by the network device is small, it may still support a large mutual discovery range, which may enable more potential backhaul nodes to discover the network device, as shown in fig. 9. Another advantage is that the network device transmits the access link SSB with a larger transmit power, so that more terminals can be accessed within the coverage area of the network device. At this time, the network device may transmit the backhaul link SSB with a smaller power, that is, when the capacity of the backhaul link is limited, the power consumption of the network device may be saved by adjusting the transmission power of the network device, as shown in fig. 10.

In summary, there are potential benefits to the flexible deployment and network performance of the network in supporting the configuration of the transmission power of the backhaul link SSB and supporting the backhaul link SSB to use a different transmission power than the access link SSB.

For example, in this embodiment of the present application, the reference transmission power may be a transmission power included in configuration information received by a network device, where the configuration information is used to configure a first SS/PBCH block, and the configuration information may be a backhaul link STC, or the reference transmission power may also be a transmission power for the first network device to transmit a second SS/PBCH block to a first terminal device, or the reference transmission power may also be a transmission power for the second network device to transmit a third SS/PBCH block to the second terminal device, where the second network device is a higher node of the first network device. The second SS/PBCH block may be used for the first terminal to access the first network device, and the third SS/PBCH block may be used for the second terminal to access the second network device.

The second SS/PBCH block may be an access link SS/PBCH block transmitted by the first network device. The third SS/PBCH block may be an access link SS/PBCH block transmitted by the second network device. The access link SS/PBCH block may also be referred to as an access link SSB. For convenience of description, the first SS/PBCH block will be referred to as backhaul link SSB, and the second SS/PBCH block and the third SS/PBCH block will be referred to as access link SSB, it being understood that these are only exemplary names and that the names of the first SS/PBCH block, the second SS/PBCH block and the third SS/PBCH block are not specifically limited.

In a specific implementation, the second network device broadcasts a transmission power of the SSB at an air interface, and the transmission power may be used for the terminal device to calculate the downlink path loss for initial access. For example, the DU of the second network device broadcasts the transmission power of the access link SSB over the air via a system message block, which may be, for example, system information block 1 (SIB 1). Thus, the first network device may receive broadcast information of the second network device, wherein the broadcast information contains the transmission power of the second network device access link SSB. In particular, the broadcast message is received by the MT module of the first network device. For convenience of description, the system message block is SIB1 for example.

When the configuration information received by the first network device does not include the transmission power, the transmission power of the first network device to the first terminal device access link SSB may be used as the reference transmission power, or the transmission power of the second network device to the second terminal device access link SSB may also be used as the reference transmission power. It is to be understood that when the first network device does not include the transmit power in the configuration information, the transmit power of the backhaul link SSB may be determined based on the transmit power of the access link SSB of the first network device or the transmit power of the access link SSB of the second network device.

When the configuration information received by the first network device includes information indicating the transmission power, the first network device may employ the transmission power indicated in the configuration information as the reference transmission power. It may be understood that the first network device determines the transmit power for transmitting the backhaul link SSB based on the indicated transmit power when the configuration information includes information indicating the transmit power. For example, the configuration information may directly include the transmit power, in this way indicating the Energy Per Resource Element (EPRE) of the secondary synchronization signal SSS in the backhaul link SSB. As another example, the configuration information includes a parameter indicating the transmit power of the backhaul link SSB. Illustratively, the first network device prestores a table of correspondence between a first parameter and the transmission power information of the backhaul link SSB, where when the first parameter takes a first value, the transmission power of the backhaul link SSB is x, and when the first parameter takes a second value, the transmission power of the backhaul link SSB is y. The configuration information may indirectly indicate the transmit power of the backhaul link SSB by indicating the first parameter.

In a specific implementation, the first network device may receive the configuration information before determining the transmission power of the backhaul link SSB. In particular, the configuration information may be sent by the Donor node of the first network device to the first network device. For convenience of description, the configuration information is hereinafter referred to as a backhaul link STC.

In a specific implementation, the first network device may cover 1 cell, and may also cover multiple cells (e.g., a carrier aggregation scenario). If the first network device covers 1 cell, the first network device may be configured with one access link SSB, that is, the first network device is configured with one access link SSB configuration information. If the first network device covers multiple cells, the first network device may be configured with multiple access link SSBs, that is, the first network device is configured with multiple access link SSB configuration information. When the first network device determines the transmission power of the backhaul link SSB with reference to the transmission power of its own access link SSB, that is, when the reference transmission power is the transmission power of the access link SSB of the first network device, if the first network device is configured with 1 access link SSB configuration information, the transmission power included in the access link SSB configuration information may be used as the reference transmission power. If the first network device is configured with multiple pieces of access link SSB configuration information, the transmit power included in any one piece of access link SSB configuration information may be selected as the reference transmit power in the multiple pieces of access link SSB configuration information, or the transmit power included in one piece of specific access link SSB configuration information may be selected as the reference transmit power in the multiple pieces of access link SSB configuration information.

Several examples of access link SSB configuration information are presented below:

example 1, the particular access link SSB configuration information may be access link SSB configuration information activated for a first one of the plurality of access link SSB configuration information for the first network device. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power included in the configuration information of the first activated access link SSB of the first network device (i.e., the transmission power of the first activated access link SSB of the first network device).

Example 2, the specific access link SSB configuration information may also be the first configured access link SSB configuration information in the plurality of access link SSB configuration information. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power included in the configuration information of the first configured access link SSB of the first network device (i.e., the transmission power of the first configured access link SSB of the first network device). For example, if two or more access link SSB configuration information are broadcasted by the second network device, the first network device may select the first configured access link SSB configuration information according to the receiving configuration, that is, determine the transmission power of the backhaul link SSB according to the transmission power included in the first configured access link SSB configuration information.

Example 3, the particular access link SSB configuration information may also be the first received access link SSB configuration information of the plurality of access link SSB configuration information. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power included in the first received access link SSB configuration information of the first network device. For example, if two or more access link SSB configuration information are broadcast by the second network device, the first network device may select the first received access link SSB configuration information in the receiving order, i.e., determine the transmit power of the backhaul link SSB based on the transmit power included in the first received access link SSB configuration information.

Example 4, the specific access link SSB configuration information may also be access link SSB configuration information used to configure the primary cell from among the plurality of access link SSB configuration information. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power included in the configuration information of the access link SSB of the first network device, which is used to configure the primary cell. For example, if there are two access link SSB configuration information broadcasted by the second network device, but only one of the access link SSB configuration information is a primary cell (primary cell) for independent networking (SA), the first network device may determine the transmission power of the backhaul link SSB according to the transmission power of the access link SSB configuration information.

Example 5, the STC of the backhaul link includes first indication information, where the first indication information is used to indicate a reference cell or a reference frequency point of the first network device, and the SSB configuration information of the specific access link may also be access link SSB configuration information corresponding to the reference cell or the reference frequency point. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power included in the access link SSB configuration information corresponding to the reference cell or the reference frequency point of the first network device. In specific implementation, the first indication information may also be carried in other messages, and this embodiment of the application is described by taking the case that the backhaul link STC includes the first indication information as an example, and is not limited specifically.

Example 6, the backhaul link STC includes second indication information, where the second indication information is used to indicate the access link SSB serving as the reference signal, and the specific access link SSB configuration information may be access link SSB configuration information corresponding to the access link SSB serving as the reference signal. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power of the access link SSB of the reference signal. In specific implementation, the second indication information may also be carried in other messages, and this embodiment of the application only takes the case where the STC includes the second indication information as an example to illustrate, and is not specifically limited.

Example 7, the STC of the backhaul link includes frequency domain location information of the backhaul link SSB, and the specific access link SSB configuration information may be access link SSB configuration information in which the frequency domain location information is the same as the frequency domain location information carried by the configuration information in the multiple access link SSBs configuration information. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power of the access link SSB, where the frequency domain location information is the same as the frequency domain location information carried by the configuration information. For example, the backhaul link SSB frequency domain location information may be, but is not limited to, a frequency point of the backhaul link SSB, a frequency band of the backhaul link SSB, a bandwidth part (BWP) of the backhaul link SSB, and the like. Therefore, the first network device may select, according to the backhaul link SSB frequency domain location information, the transmission power of the access link SSB with the same frequency point/same frequency band/same BWP as the backhaul link SSB as the reference transmission power. It should be understood that in the embodiment of the present application, the access link SSB at the same frequency point is determined according to the frequency point of the backhaul link SSB, the access link SSB at the same frequency band is determined according to the frequency band of the backhaul link SSB, and the access link SSB at the same BWP is determined according to the BWP of the backhaul link SSB, and in a specific implementation, the access link SSB at the same frequency point/at the same BWP may also be determined according to the frequency point of the backhaul link SSB, and the like.

Example 8, the specific access link SSB configuration information is access link SSB configuration information carrying a reference indication in the multiple access link SSB configuration information, where the reference indication is used to indicate that the transmission power of the access link SSB may be referred to by the backhaul link SSB. Therefore, when the configuration information does not include the transmission power, the first network device may determine the transmission power of the backhaul link SSB according to the transmission power included in the access link SSB configuration information carrying the reference indication. In this way, by adding a reference indication (reference flag) to the access SSB configuration information, the first network device can determine the transmission power of the backhaul link SSB according to the access link SSB configuration information with the reference indication. In a specific implementation, not only the transmission power of the backhaul link SSB may be configured with reference to the access link SSB configuration information with reference indication, but also other parameters of the backhaul link SSB may be configured with reference to the access link SSB configuration information with reference indication, which is not listed here.

In a specific implementation, the SIB1 broadcasted by the second network device may include the transmission power of one access link SSB, or may include the transmission power of multiple access link SSBs. When the first network device determines the transmission power of the backhaul link SSB with reference to the transmission power of the access link SSB of the second network device, that is, when the reference transmission power is the transmission power of the access link SSB of the second network device, if the SIB1 includes one transmission power, the reference transmission power is the transmission power included in the SIB1, that is, the first network device may determine the transmission power of the backhaul link SSB with reference to the transmission power included in the SIB. If the SIB1 includes multiple transmission powers, the reference transmission power may be any one of the multiple transmission powers included in the SIB1, that is, the first network device may select any one of the multiple transmission powers included in the SIB1 as the reference transmission power to determine the transmission power of the backhaul link SSB. Alternatively, if the SIB1 includes multiple transmission powers, the reference transmission power may be a specific transmission power among the multiple transmission powers included in the SIB1, that is, the first network device may select a specific transmission power among the multiple transmission powers included in the SIB1 as the reference transmission power to determine the transmission power of the backhaul link SSB.

Several examples of specific transmit powers are given below:

example 1, the SIB includes third indication information, where the third indication information is used to indicate a reference cell or a reference frequency point of the second network device, and the specific transmission power is a transmission power corresponding to the reference cell or the reference frequency point of the second network device, among the multiple transmission powers included in the SIB 1. In this way, the second network device may configure its own reference cell/reference frequency point, and the first network device may select the transmission power corresponding to the reference cell/reference frequency point as the reference transmission power to determine the transmission power of the backhaul link SSB. The cell identity (cell ID) or the reference frequency point of the reference cell of the second network device may be sent by the second network device through system message broadcasting, so that the first network device may obtain the reference cell or the reference frequency point of the second network device after receiving the system message broadcasted by the second network device. Illustratively, the system message may be, but is not limited to, a SIB message (e.g., SIB1), a Master Information Block (MIB) message, RRC signaling, and the like.

Example 2, the specific transmission power is a transmission power corresponding to the access link SSB of the second network device as the reference signal, among the plurality of transmission powers included in the SIB 1. In this way, the second network device may configure its own reference synchronization signal, and the first network device may select the transmission power corresponding to the reference synchronization signal as the reference transmission power to determine the transmission power of the backhaul link SSB.

Example 3, the specific transmission power is a transmission power of an access link SSB currently accessed by the first network device or currently activated by the second network device among the plurality of transmission powers included in the SIB 1. In this way, the first network device may select the transmission power of the access link SSB currently accessed by itself, or the transmission power of the access link SSB currently activated by the second network device as the reference transmission power to determine the transmission power of the backhaul link SSB.

Example 4, the configuration information includes frequency domain location information of the access link SSB, and the specific transmission power is the transmission power of the access link SSB, which is the same as the frequency domain location information carried by the configuration information, among the multiple transmission powers included in the SIB 1. For example, the backhaul link SSB frequency domain location information may be, but is not limited to, a frequency point of the backhaul link SSB, a frequency band of the backhaul link SSB, a bandwidth part (BWP) of the backhaul link SSB, and the like. Therefore, the first network device can select the transmission power of the access link SSB of the second network device that is the same frequency point/same frequency band/same BWP as the backhaul link SSB as the reference transmission power according to the backhaul link SSB frequency domain location information. It should be understood that, in the embodiment of the present application, the access link SSB of the same frequency point of the second network device is determined according to the frequency point of the backhaul link SSB, the access link SSB of the same frequency band of the second network device is determined according to the frequency band of the backhaul link SSB, and the access link SSB of the same BWP of the second network device is determined according to the BWP of the backhaul link SSB, and in a specific implementation, the same frequency point of the second network device/the access link SSB of the same BWP and the like may also be determined according to the frequency point of the backhaul link SSB.

In one implementation, when the first network device determines to transmit the transmission power of the backhaul link SSB based on the reference transmission power, specifically, the reference transmission power may be adopted as the transmission power of the backhaul link SSB. For example, when the transmit power is included in the configuration information, the first network device may employ the transmit power as the transmit power for transmitting the backhaul link SSB. When the configuration information does not include the transmission power, the first network device may use the transmission power of its own access link SSB as the transmission power for transmitting the backhaul link SSB, or use the transmission power of the access link SSB of the second network device as the transmission power for transmitting the backhaul link SSB.

Alternatively, a power offset value may also be included in the backhaul link STC, and then the first network device may determine the transmission power of the backhaul link SSB based on the reference transmission power and the power offset value when determining the transmission power of the backhaul link SSB based on the reference transmission power. For example, the transmission power of the backhaul link SSB may be the result of adding the power offset value to the reference transmission power, i.e. P _ BH is P _ offset + P _ AC, where P _ BH is the transmission power of the backhaul link SSB, P _ offset is the power offset value carried in the configuration information, and P _ AC is the reference transmission power. Alternatively, the transmission power of the backhaul link SSB may be the result of subtracting the power offset value from the reference transmission power, i.e., P _ BH — P _ AC-P _ offset. Of course, the backhaul link SSB may also be the result of performing other calculations with reference to the transmit power and the power offset value, and is not limited herein.

Further, backhaul link STC may comprise a plurality of power offset values, wherein one backhaul link SSB is associated with one power offset value. When the first network device determines the transmission power of a backhaul link SSB based on the reference transmission power, the first network device may specifically determine the transmission power of the backhaul link SSB based on the reference transmission power and a power offset value associated with the backhaul link SSB. The STC of the backhaul link may include a power offset value corresponding to each of the backhaul links SSB, or may be a power offset value corresponding to a part of the backhaul links SBB. If the STC of the backhaul link includes a power offset value corresponding to a part of the backhaul link SBB, the transmission power of the other backhaul link SSB without the power offset value may be transmitted by using the reference transmission power.

It should be understood that, in the embodiment of the present application, the "backhaul link STC may include a plurality of power offset values" may be understood that one backhaul link STC may configure a plurality of backhaul links SSBs, and the backhaul link STC may include power offset values corresponding to the plurality of backhaul links SSBs, respectively. Alternatively, "backhaul link STC may include a plurality of power offset values" may also be understood as a plurality of backhaul link STCs received by the first network device, wherein one backhaul link STC configures one backhaul link SSB, and may include a power offset value corresponding to the backhaul link SSB, that is, "backhaul link STC" in "backhaul link STC may include a plurality of power offset values" may refer to a plurality of backhaul link STCs received by the first network device.

Based on the same inventive concept as that of the method embodiment, the embodiment of the application provides a SS/PBCH block transmission power configuration device. The SS/PBCH block transmission power configuration apparatus may be specifically used to implement the method performed by the first network device in the embodiments of fig. 8 to fig. 10, and the apparatus may be the first network device itself, or may be a chip or a chipset in the first network device or a part of a chip for performing functions of the related method. The structure of the SS/PBCH block transmission power configuration apparatus may include a processing unit 1101 and a transceiver unit 1102, as shown in fig. 11. Wherein the processing unit 1101 is configured to determine a transmit power of a first SS/PBCH block, wherein the transmit power of the first SSB is related to a reference transmit power, and the first SS/PBCH block is used for the second device to discover and measure the first network device. A transceiving unit 1102, configured to transmit the first SS/PBCH block with the transmission power determined by the processing unit 1101.

In one embodiment, the transceiver unit 1102 may further be configured to: and receiving configuration information, wherein the configuration information is used for configuring the first SS/PBCH block.

The processing unit 1101 may be specifically configured to: when the configuration information does not include information indicating the transmission power of the first SS/PBCH block, the transmission power of the first SS/PBCH block is determined based on a reference transmission power, wherein the reference transmission power is the transmission power of a first network device for transmitting a second SS/PBCH block to a first terminal device, or the reference transmission power is the transmission power of a second network device for transmitting a third SS/PBCH block to a second terminal device, wherein the second network device is an upper node of the first network device. Alternatively, the processing unit 1101 may be further specifically configured to: when the configuration information includes information indicating a transmission power of the first SS/PBCH block, the transmission power of the first SS/PBCH block is determined based on a reference transmission power, which is the transmission power indicated by the configuration information.

Specifically, when determining the transmit power of the first SS/PBCH block based on the reference transmit power, the processing unit 1101 may be specifically configured to: the reference transmission power is used as the transmission power for transmitting the first SS/PBCH block.

In some embodiments, the configuration information may include a power offset value. When determining the transmit power of the first SS/PBCH block based on the reference transmit power, the processing unit 1101 may be specifically configured to: a transmit power of the first SS/PBCH block is determined based on the reference transmit power and the power offset value.

Further, the configuration information may include a plurality of power offset values, one power offset value associated with one first SS/PBCH block. When determining the transmit power of the first SS/PBCH block based on the reference transmit power, the processing unit 1101 may be specifically configured to: a transmit power of the first SS/PBCH block is determined based on the reference transmit power and a power offset value associated with the first SS/PBCH block.

For example, when the first network device is configured with 1 second SS/PBCH block configuration information, the reference transmission power may be a transmission power included in the second SS/PBCH block configuration information. When the first network device is configured with a plurality of second SS/PBCH block configuration information, the reference transmit power may be a transmit power included in any one of the plurality of second SS/PBCH block configuration information, or the reference transmit power may also be a transmit power included in a specific one of the plurality of second SS/PBCH block configuration information.

The specific second SS/PBCH block configuration information may be second activated SS/PBCH block configuration information in the plurality of second SS/PBCH block configuration information.

Alternatively, the specific second SS/PBCH block configuration information may also be second SS/PBCH block configuration information configured for the first one of the plurality of second SS/PBCH block configuration information.

Alternatively, the specific second SS/PBCH block configuration information may also be a second SS/PBCH block configuration information in which the first one of the plurality of second SS/PBCH block configuration information is received.

Alternatively, the specific second SS/PBCH block configuration information may be second SS/PBCH block configuration information used for configuring the primary cell in the plurality of second SS/PBCH block configuration information.

Or the configuration information may include first indication information, where the first indication information is used to indicate a reference cell or a reference frequency point of the first network device, and the specific second SS/PBCH block configuration information may be second SS/PBCH block configuration information corresponding to the reference cell or the reference frequency point.

Alternatively, the configuration information may also include second indication information, where the second indication information is used to indicate a second SS/PBCH block serving as a reference signal, and the specific second SS/PBCH block configuration information may be second SS/PBCH block configuration information corresponding to the second SS/PBCH block serving as the reference signal.

Or, the configuration information may further include frequency domain location information of the first SS/PBCH block, and the specific second SS/PBCH block configuration information may be second SS/PBCH block configuration information in which the frequency domain location information is the same as the frequency domain location information carried by the configuration information in the plurality of second SS/PBCH block configuration information.

Or, the specific second SS/PBCH block configuration information may also be second SS/PBCH block configuration information carrying a reference indication in the plurality of second SS/PBCH block configuration information.

In one implementation manner, the transceiver unit 1102 may be further configured to: and receiving a system information block broadcast by the second network equipment, wherein the system information block comprises the transmission power of one or more third SS/PBCH blocks.

Further, when one transmission power is included in the system information block, the reference transmission power may be a transmission power included in the system information block. When the system information block includes a plurality of transmission powers, the reference transmission power may be any one of the plurality of transmission powers included in the system information block, or the reference transmission power may be a specific transmission power among the plurality of transmission powers included in the system information block.

For example, the specific transmission power may be a transmission power corresponding to a reference cell or a reference frequency point of the second network device.

Alternatively, the specific transmission power may be a transmission power corresponding to a third SS/PBCH block of the second network device as a reference signal.

Alternatively, the specific transmit power may also be a transmit power of a third SS/PBCH block currently accessed by the first network device or currently activated by the second network device.

Or, the configuration information may include frequency domain location information of the first SS/PBCH block, and the specific transmit power may be a transmit power of a third SS/PBCH block whose frequency domain location information is the same as the frequency domain location information carried by the configuration information.

The division of the modules in the embodiments of the present application is schematic, and only one logical function division is provided, and in actual implementation, there may be another division manner, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, may also exist alone physically, or may also be integrated in one module by two or more modules. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It is understood that the functions or implementations of the respective modules in the embodiments of the present application may further refer to the related description of the method embodiments.

In one possible approach, the SS/PBCH block transmit power configuration apparatus may be a network device or a chip in a network device as shown in fig. 12. The apparatus may include a processor 1201, a communication interface 1202, and a memory 1203. The processing unit 1101 may be a processor 1201. The transceiver unit 1102 may be a communication interface 1202.

The processor 1201 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The communication interface 1202 may be a transceiver, an interface circuit such as a transceiver circuit, etc., a transceiver chip, etc. The device also includes: a memory 1203 for storing programs executed by the processor 1201. The memory 1203 may be a non-volatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory (RAM), such as a random-access memory (RAM). The memory 1203 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such.

The processor 1201 is configured to execute the program code stored in the memory 1203, and is specifically configured to execute the actions of the processing unit 1101, which is not described herein again. The communication interface 1202 is specifically configured to perform the actions of the transceiver 1102, which are not described herein again.

The embodiment of the present application does not limit the specific connection medium among the communication interface 1202, the processor 1201 and the memory 1203. In the embodiment of the present application, the memory 1203, the processor 1201 and the communication interface 1202 are connected by the bus 1204 in fig. 12, the bus is represented by a thick line in fig. 12, and the connection manner between the other components is only schematically illustrated and is not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 12, but this is not intended to represent only one bus or type of bus.

The embodiment of the present invention further provides a computer-readable storage medium, which is used for storing computer software instructions required to be executed for executing the processor, and which contains a program required to be executed for executing the processor.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device including one or more available media integrated servers, data centers, and the like. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., SSD), among others.

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 spirit and 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

1. A method for configuring SS/PBCH block transmission power of a synchronization signal/physical broadcast channel block, the method comprising:

a first network device determining a transmit power of a first SS/PBCH block, wherein the transmit power of the first SS/PBCH block is related to a reference transmit power, and the first SS/PBCH block is used for a second device to discover and measure the first network device;

the first network device transmits the first SS/PBCH block at the transmit power.

2. The method of claim 1, wherein the first network device determining the transmit power of the first SS/PBCH block comprises:

the first network device receiving configuration information, the configuration information being used to configure the first SS/PBCH block;

when the configuration information does not include information indicating the transmission power of the first SS/PBCH block, determining the transmission power of the first SS/PBCH block based on the reference transmission power, wherein the reference transmission power is the transmission power of the first network device for transmitting a second SS/PBCH block to a first terminal device, or the reference transmission power is the transmission power of the second network device for transmitting a third SS/PBCH block to a second terminal device, and the second network device is a superior node of the first network device.

3. The method of claim 1, wherein the first network device determining the transmit power of the first SS/PBCH block comprises:

the first network equipment receives configuration information, wherein the configuration information is used for configuring a first SS/PBCH block;

when the configuration information includes information indicating the transmission power of the first SS/PBCH block, determining the transmission power of the first SS/PBCH block based on the reference transmission power, wherein the reference transmission power is the transmission power indicated by the configuration information.

4. The method of claim 2 or 3, wherein the first network device determining the transmit power of the first SS/PBCH block based on the reference transmit power comprises:

and the first network equipment adopts the reference sending power as the sending power for sending the first SS/PBCH block.

5. The method of claim 2 or 3, wherein the configuration information comprises a power offset value;

determining, by the first network device, a transmit power of the first SS/PBCH block based on the reference transmit power, comprising:

the first network device determines a transmit power of the first SS/PBCH block based on the reference transmit power and the power offset value.

6. The method of claim 2 or 3, wherein the configuration information comprises a plurality of power offset values, one power offset value associated with one first SS/PBCH block;

the first network device determines a transmit power of the first SS/PBCH block based on the reference transmit power and a power offset value associated with the first SS/PBCH block.

7. The method of claim 2,

the first network device is configured with 1 piece of second SS/PBCH block configuration information, and the reference transmission power is the transmission power included in the second SS/PBCH block configuration information; or,

the first network device is configured with a plurality of second SS/PBCH block configuration information, and the reference transmission power is a transmission power included in any one of the plurality of second SS/PBCH block configuration information; or,

the first network device is configured with a plurality of second SS/PBCH block configuration information, and the reference transmission power is a transmission power included in a specific second SS/PBCH block configuration information of the plurality of second SS/PBCH block configuration information.

8. The method of claim 7, wherein the particular second SS/PBCH block configuration information is a second SS/PBCH block configuration information that is activated for a first of the plurality of second SS/PBCH block configuration information; or,

the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information configured for a first one of the plurality of second SS/PBCH block configuration information; or,

the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information for which a first one of the plurality of second SS/PBCH block configuration information is received; or,

the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information used for configuring a primary cell in the plurality of second SS/PBCH block configuration information; or,

the configuration information includes first indication information, the first indication information is used for indicating a reference cell or a reference frequency point of the first network device, and the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information corresponding to the reference cell or the reference frequency point; or,

the configuration information comprises second indication information, the second indication information is used for indicating a second SS/PBCH block serving as a reference signal, and the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information corresponding to the second SS/PBCH block serving as the reference signal; or,

the configuration information comprises frequency domain position information of the first SS/PBCH block, and the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information of which the frequency domain position information is the same as the frequency domain position information carried by the configuration information in the plurality of second SS/PBCH block configuration information; or,

the specific second SS/PBCH block configuration information is second SS/PBCH block configuration information carrying reference indication in the plurality of second SS/PBCH block configuration information.

9. The method of claim 2,

the method further comprises the following steps:

and the first network equipment receives a system information block broadcasted by the second network equipment, wherein the system information block comprises the transmission power of one or more third SS/PBCH blocks.

10. The method of claim 9, wherein when one transmission power is included in the system information block, the reference transmission power is the transmission power included in the system information block; or,

when the system information block comprises a plurality of transmission powers, the reference transmission power is any one of the plurality of transmission powers comprised by the system information block; or,

when a plurality of transmission powers are included in the system information block, the reference transmission power is a specific transmission power among the plurality of transmission powers included in the system information block.

11. The method of claim 10, wherein the specific transmission power is a transmission power corresponding to a reference cell or a reference frequency point of the second network device; or,

the specific sending power is the sending power corresponding to a third SS/PBCH block which is taken as a reference signal of the second network equipment; or,

the specific sending power is the sending power of a third SS/PBCH block currently accessed by the first network equipment or currently activated by the second network equipment; or,

the configuration information comprises frequency domain position information of the first SS/PBCH block, and the specific sending power is the sending power of a third SS/PBCH block, wherein the frequency domain position information is the same as the frequency domain position information carried by the configuration information.

12. An apparatus for configuring SS/PBCH block transmit power of a synchronization signal/physical broadcast channel block, the apparatus comprising:

a processing unit configured to determine a transmit power of a first SS/PBCH block, wherein the transmit power of the first SS/PBCH block is related to a reference transmit power, and the first SS/PBCH block is used for a second device to discover and measure a first network device;

a transceiver unit, configured to transmit the first SS/PBCH block with the transmit power determined by the processing unit.

13. The apparatus as recited in claim 12, wherein said transceiver unit is further configured to: receiving configuration information, wherein the configuration information is used for configuring the first SS/PBCH block;

the processing unit is specifically configured to: when the configuration information does not include information indicating the transmission power of the first SS/PBCH block, determining the transmission power of the first SS/PBCH block based on the reference transmission power, wherein the reference transmission power is the transmission power of the first network device for transmitting a second SS/PBCH block to a first terminal device, or the reference transmission power is the transmission power of the second network device for transmitting a third SS/PBCH block to a second terminal device, and the second network device is a superior node of the first network device.

14. The apparatus as recited in claim 12, wherein said transceiver unit is further configured to: receiving configuration information, wherein the configuration information is used for configuring the first SS/PBCH block;

the processing unit is specifically configured to: when the configuration information includes information indicating the transmission power of the first SS/PBCH block, determining the transmission power of the first SS/PBCH block based on the reference transmission power, wherein the reference transmission power is the transmission power indicated by the configuration information.

15. The apparatus of claim 13 or 14, wherein the processing unit, when determining the transmit power of the first SS/PBCH block based on the reference transmit power, is specifically configured to:

and adopting the reference transmission power as the transmission power for transmitting the first SS/PBCH block.

16. The apparatus of claim 13 or 14, wherein the configuration information comprises a power offset value;

the processing unit, when determining the transmit power of the first SS/PBCH block based on the reference transmit power, is specifically configured to:

determining a transmit power of the first SS/PBCH block based on the reference transmit power and the power offset value.

17. The apparatus of claim 13 or 14, wherein the configuration information comprises a plurality of power offset values, one power offset value associated with one first SS/PBCH block;

determining a transmit power of the first SS/PBCH block based on the reference transmit power and a power offset value associated with the first SS/PBCH block.

18. The apparatus of claim 13, wherein the first network device is configured with 1 second SS/PBCH block configuration information, the reference transmit power being a transmit power included in the second SS/PBCH block configuration information; or,

19. The apparatus of claim 18, wherein the particular second SS/PBCH block configuration information is a second SS/PBCH block configuration information in which a first one of the plurality of second SS/PBCH block configuration information is activated; or,

20. The apparatus as recited in claim 13, wherein said transceiver unit is further configured to:

receiving a system information block broadcast by the second network device, wherein the system information block comprises a transmit power of one or more third SS/PBCH blocks.

21. The apparatus of claim 20, wherein the reference transmission power is the transmission power included in the system information block when one transmission power is included in the system information block; or,

22. The apparatus of claim 21, wherein the specific transmission power is a transmission power corresponding to a reference cell or a reference frequency point of the second network device; or,

23. A computer readable storage medium, in which a program or instructions are stored, which when read and executed by one or more processors, implement the method of any one of claims 1 to 11.

24. A network system comprising a first network device and a second device, wherein the first network device is an apparatus according to any one of claims 12-22.