Power allocation method and apparatus

Abstract

Embodiments of the present application provide a power allocation method and device. The method comprises: a terminal device determining whether sidelink transmission is prioritized over uplink transmission, wherein the sidelink transmission comprises transmission of sidelink information carried by a second uplink physical channel and / or transmission of a sidelink physical channel / signal, and the uplink transmission comprises transmission of uplink information carried by the second uplink physical channel and / or transmission of a first uplink physical channel / signal; and in the case that the sidelink transmission is prioritized over the uplink transmission, allocating power to the second uplink physical channel and / or the sidelink physical channel / signal.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology. BACKGROUND

[0002] V2X (Vehicle to Everything) is a kind of vehicle communication technology, compared with cellular communication using Uu link (including uplink and downlink), the sending terminal device of V2X directly communicates with the receiving terminal device through sidelink.

[0003] New radio (NR) V2X is an important project of 5G NR, compared with long term evolution (LTE) V2X, NR V2X needs to support many new scenarios and new services, and needs to meet higher technical indicators.

[0004] NR V2X defines several physical channels, including physical sidelink control channel (PSCCH), physical sidelink shared channel (PSSCH) and physical sidelink feedback channel (PSFCH), which are used to carry sidelink control information (SCI), sidelink data and sidelink feedback information (such as HARQ-ACK) respectively.

[0005] Among them, SCI is used to schedule PSSCH, and SCI will indicate the priority of PSSCH, which is also the priority of the PSFCH associated with PSSCH. There is a certain mapping relationship between the time-frequency resources of PSCCH / PSSCH and the time-frequency resources of the PSFCH associated with it. After the sending terminal device sends PSCCH / PSSCH, it knows which slot to receive the PSFCH associated with the PSSCH.

[0006] NR V2X defines two working modes. For NR V2X mode 1, the time-frequency resources used by the terminal device for V2X communication are scheduled and allocated by the network device (such as base station) through NR Uu link, and for NR V2X mode 2, the terminal device can select the time-frequency resources used for V2X communication based on the sensing result.

[0007] For mode 1, the terminal device can send sidelink HARQ-ACK to the network device. More specifically, the terminal device can send sidelink HARQ-ACK to the network device on a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), and the sidelink HARQ-ACK can be multiplexed with Uu information within the PUCCH or the PUSCH. The network device can know whether to allocate time-frequency resources for the sidelink according to the sidelink HARQ-ACK.

[0008] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely describing the technical solutions of the present application, and for the convenience of understanding by those skilled in the art. The above technical solutions cannot be considered as known to those skilled in the art just because they are described in the background section of the present application. SUMMARY

[0009] The inventors have found that for NR Uu link, when the terminal device simultaneously performs uplink transmission on multiple uplink carriers, power is preferentially allocated to physical channels or physical signals with higher priority, so as to ensure that the total power does not exceed the maximum power limit of the terminal device. However, if the existing Uu power allocation priority rule is used, an unfair power allocation result will be caused in NR V2X.

[0010] To solve at least one of the above problems, the embodiments of the present application provide a power allocation method and device.

[0011] According to an aspect of the embodiments of the present application, a power allocation device is provided, comprising:

[0012] A determination unit determines whether sidelink transmission is prior to uplink transmission, wherein the sidelink transmission comprises transmission of sidelink information carried by a second uplink physical channel and / or transmission of a sidelink physical channel / signal, and the uplink transmission comprises transmission of uplink information carried by the second uplink physical channel and / or transmission of a first uplink physical channel / signal without carrying sidelink information; wherein the second uplink physical channel at least carries sidelink information, and the second uplink physical channel, the first uplink physical channel / signal and the sidelink physical channel / signal overlap in time; and

[0013] An allocation unit, in the case that the sidelink transmission is prior to the uplink transmission, preferentially allocates power for the second uplink physical channel and / or the sidelink physical channel / signal.

[0014] According to another aspect of the embodiments of this application, a power allocation method is provided, comprising:

[0015] The terminal device determines whether sidelink transmission takes precedence over uplink transmission, wherein sidelink transmission includes the transmission of sidelink information carried by a second uplink physical channel and / or the transmission of a sidelink physical channel / signal, and the uplink transmission includes the transmission of uplink information carried by the second uplink physical channel and / or the transmission of a first uplink physical channel / signal that does not carry sidelink information; wherein the second uplink physical channel carries at least sidelink information, and the second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal overlap in time; and

[0016] In cases where the sidelink transmission takes precedence over the uplink transmission, power is preferentially allocated to the second uplink physical channel and / or the sidelink physical channel / signal.

[0017] According to another aspect of the embodiments of this application, a communication system is provided, comprising:

[0018] A terminal device determines whether sidelink transmission takes precedence over uplink transmission, wherein the sidelink transmission includes the transmission of sidelink information carried by a second uplink physical channel and / or the transmission of a sidelink physical channel / signal, and the uplink transmission includes the transmission of uplink information carried by the second uplink physical channel and / or the transmission of a first uplink physical channel / signal that does not carry sidelink information; wherein the second uplink physical channel carries at least sidelink information, and the second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal overlap in time; and if the sidelink transmission takes precedence over the uplink transmission, power is preferentially allocated to the second uplink physical channel and / or the sidelink physical channel / signal.

[0019] One of the beneficial effects of this application's embodiments is that, when sidelink transmission takes precedence over uplink transmission, the terminal device prioritizes allocating power to the second uplink physical channel that carries at least sidelink information. Therefore, when the terminal device feeds back information to the network device, the fairness of power allocation can be guaranteed, ensuring that power is preferentially allocated to the physical channels or physical signals with the most urgent demand or highest importance.

[0020] Specific embodiments of this application are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of this application can be adopted. It should be understood that the embodiments of this application are not limited in scope. Within the spirit and scope of the appended claims, embodiments of this application include many changes, modifications, and equivalents.

[0021] Features described and / or illustrated with respect to one implementation can be used in one or more other implementations in the same or similar manner, in combination with or in place of features of the other implementations.

[0022] It should be emphasized that the term "comprises / comprising" when used in this specification is taken to mean the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0023] Elements and features depicted with respect to one embodiment or one figure in the present application can be combined with elements and features depicted with respect to one or more other embodiments or figures in the present application. In addition, in the drawings, like numerals indicate corresponding parts throughout the several views.

[0024] Figure 1 is a schematic diagram of a communication system of embodiments of the present application;

[0025] Figure 2 is a schematic diagram of a power allocation method of embodiments of the present application;

[0026] Figure 3 is an example diagram of performing power allocation of embodiments of the present application;

[0027] Figure 4 is another example diagram of performing power allocation of embodiments of the present application;

[0028] Figure 5 is another example diagram of performing power allocation of embodiments of the present application;

[0029] Figure 6 is another example diagram of performing power allocation of embodiments of the present application;

[0030] Figure 7 is an example diagram of physical channels and / or signals of embodiments of the present application;

[0031] Figure 8 is another schematic diagram of a power allocation method of embodiments of the present application;

[0032] Figure 9 is an example diagram of performing power allocation of embodiments of the present application;

[0033] Figure 10 is an example diagram of power priorities of embodiments of the present application;

[0034] Figure 11 is a schematic diagram of a data multiplexing method of embodiments of the present application;

[0035] Figure 12 This is an example diagram of the transmitted signal according to an embodiment of this application;

[0036] Figure 13 This is a schematic diagram of a power distribution device according to an embodiment of this application;

[0037] Figure 14 This is a schematic diagram of a network device according to an embodiment of this application;

[0038] Figure 15 This is a schematic diagram of a terminal device according to an embodiment of this application. Detailed Implementation

[0039] Referring to the accompanying drawings, the foregoing and other features of this application will become apparent from the following description. Specific embodiments of this application are specifically disclosed in the description and drawings, illustrating partial implementations in which the principles of this application may be employed. It should be understood that this application is not limited to the described embodiments; rather, it includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0040] In the embodiments of this application, the terms "first," "second," etc., are used to distinguish different elements by name, but do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one or more of the terms listed in association and all combinations thereof. The terms "comprising," "including," "having," etc., refer to the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0041] In the embodiments of this application, the singular forms "a," "the," etc., including the plural forms, should be broadly understood as "a kind" or "a class" rather than limited to the meaning of "an." Furthermore, the term "the" should be understood to include both the singular and plural forms, unless the context explicitly indicates otherwise. Additionally, the term "according to" should be understood as "at least partially based on…," and the term "based on" should be understood as "at least partially based on…," unless the context explicitly indicates otherwise.

[0042] In the embodiments of this application, the term "communication network" or "wireless communication network" may refer to a network that conforms to any of the following communication standards, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0043] Also, communication between devices in a communication system can be in accordance with communication protocols of any stage, which can include, but are not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), etc., and / or other communication protocols known at present or to be developed in the future.

[0044] In embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include, but is not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0045] Among them, the base station can include, but is not limited to: node B (NodeB or NB), evolved node B (eNodeB or eNB), and 5G base station (gNB), etc., and can also include remote radio head (RRH), remote radio unit (RRU), relay or low-power node (such as femto, pico, etc.). And the term "base station" can include some or all functions of them, and each base station can provide communication coverage for a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0046] In embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. The terminal device can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0047] The terminal device can include, but is not limited to, a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop, a cordless phone, a smartphone, a smartwatch, a digital camera, and the like.

[0048] For another example, in an Internet of Things (IoT) scenario or the like, the terminal device can also be a machine or apparatus that performs monitoring or measurement, for example, can include, but is not limited to, a machine type communication (MTC) terminal, a vehicle-mounted communication terminal, a device-to-device (D2D) terminal, a machine-to-machine (M2M) terminal, and the like.

[0049] In addition, the term "network side" or "network device side" refers to the side of the network, which can be a certain base station, or can include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which can be a certain UE, or can include one or more terminal devices as described above. In this document, "device" can refer to a network device or a terminal device unless otherwise specified.

[0050] The following describes the scenarios of the embodiments of the present application by way of examples, but the present application is not limited thereto.

[0051] Figure 1 is a schematic diagram of a communication system of the embodiments of the present application, which schematically illustrates the case of taking a terminal device and a network device as examples, as shown in Figure 1 The communication system 100 can include a network device 101 and terminal devices 102 and 103, for simplicity. Figure 1 Only two terminal devices and one network device are taken as examples for description, but the embodiments of the present application are not limited thereto.

[0052] In the embodiments of the present application, the network device 101 and the terminal devices 102 and 103 can perform existing services or future implementable service transmission. For example, these services can include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), and the like.

[0053] It is worth noting that, Figure 1 It is shown that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 can be outside the coverage of the network device 101, or one terminal device 102 is within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101.

[0054] In the embodiments of the present application, sidelink transmission can be performed between the two terminal devices 102 and 103. For example, both terminal devices 102 and 103 can perform sidelink transmission within the coverage of the network device 101 to realize V2X communication, or both terminal devices 102 and 103 can perform sidelink transmission outside the coverage of the network device 101 to realize V2X communication, or one terminal device 102 performs sidelink transmission within the coverage of the network device 101 while the other terminal device 103 performs sidelink transmission outside the coverage of the network device 101 to realize V2X communication.

[0055] In the embodiments of the present application, the terminal device 102 and / or 103 can be allocated sidelink resources by the network device (i.e., Mode 1 is adopted). Of course, the embodiments of the present application can also combine autonomous selection of sidelink resources (i.e., Mode 2 is adopted) and allocation of sidelink resources by the network device (i.e., Mode 1 is adopted); the embodiments of the present application do not limit this.

[0056] For NR Uu link, when the terminal device simultaneously performs uplink transmission on multiple uplink carriers, different uplink carriers can be used to transmit different types of uplink physical channels or uplink physical signals, including at least one of a physical random access channel (PRACH), a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a sounding reference signal (SRS). Hereinafter, one or more uplink physical channels and / or signals are referred to as first uplink physical channels / signals.

[0057] The terminal device will allocate power to each physical channel or physical signal in order of priority from high to low based on the power allocation priority order among the uplink physical channels and / or signals defined in the standard, and ensure that the total power does not exceed the maximum power limit of the terminal device. In other words, the terminal device will preferentially allocate power to physical channels or physical signals with higher priority, or the device will preferentially transmit physical channels or physical signals with higher priority.

[0058] For example, the terminal device transmits PUCCH carrying Uu HARQ-ACK on carrier 1, and needs to transmit PUSCH carrying Uu data on carrier 2 at the same time. According to the priority order defined in the standard, the terminal device will always preferentially allocate power to the PUCCH.

[0059] However, the existing Uu power allocation priority rule will lead to unfair power allocation results in NR V2X. In NR V2X, PUCCH / PUSCH can be used to transmit sidelink HARQ-ACK. For example, for PUSCH carrying sidelink HARQ-ACK and Uu data, its power allocation priority should not only depend on the priority of Uu, but also take into account the priority of sidelink. For example, for PUCCH carrying only sidelink HARQ-ACK, since sidelink and Uu have their own priority evaluation system, the priorities of sidelink and Uu cannot be directly compared, so it is not possible to blindly reuse the power allocation priority of NR Uu without distinguishing between sidelink HARQ-ACK and Uu HARQ-ACK. For the above cases, reusing the existing NR Uu power allocation priority order will all lead to unfair power allocation results.

[0060] For example, the terminal device transmits PUSCH carrying sidelink HARQ-ACK and Uu data on carrier 1, and needs to transmit PUCCH carrying Uu CSI on carrier 2 at the same time. If the power allocation priority of NR Uu is reused, only considering the priority of Uu data in the PUSCH, the terminal device will always preferentially allocate power to the PUCCH. However, the priority of sidelink HARQ-ACK may be higher than that of Uu, and always giving priority to Uu is unfair to sidelink.

[0061] For example, the terminal device transmits a PUCCH carrying only sidelink HARQ-ACK on carrier 1, and needs to transmit a PUSCH carrying Uu data on carrier 2 at the same time. If the power allocation priority of NR Uu is reused, and sidelink HARQ-ACK and Uu HARQ-ACK are not distinguished, the terminal device will always allocate power to the PUCCH first, i.e., always give priority to the sidelink HARQ-ACK. However, the importance (priority) of the sidelink HARQ-ACK can be lower than that of the PUSCH (for example, the PUSCH carries URLLC data), and always giving priority to the sidelink HARQ-ACK will always cause the performance of the PUSCH to be lost, which is obviously unfair to the Uu link.

[0062] Embodiments of the present application give corresponding solutions to the above problems.

[0063] In the embodiments of the present application, V2X is taken as an example to explain sidelink, but the present application is not limited thereto, and can also be applied to sidelink transmission scenarios other than V2X. In the following description, the terms "sidelink" and "V2X" can be interchanged without causing confusion, the terms "PSFCH" and "sidelink feedback channel" can be interchanged, the terms "PSCCH" and "sidelink control channel" or "sidelink control information" can be interchanged, and the terms "PSSCH" and "sidelink data channel" or "sidelink data" can also be interchanged.

[0064] In addition, transmitting or receiving a PSSCH can be understood as transmitting or receiving sidelink data carried by the PSSCH; transmitting or receiving a PSFCH can be understood as transmitting or receiving sidelink feedback information carried by the PSFCH. At least one transmission can be understood as at least one PSSCH / PSCCH transmission or at least one sidelink data / information transmission, and the current transmission can be understood as the current PSSCH / PSCCH transmission or the current sidelink data / information transmission.

[0065] Embodiments of the first aspect

[0066] The embodiments of the present application provide a power allocation method, which is described from the perspective of a terminal device. The terminal device (which can be referred to as a transmitting terminal device) can act as a transmitter of service data, transmit sidelink data to one or more other terminal devices (which can be referred to as receiving terminal devices) on a sidelink, and can receive feedback information from the other terminal devices; in addition, the terminal device transmits data / information to a network device on a Uu link.

[0067] Figure 2is a schematic diagram of a power allocation method of an embodiment of the present application, as shown in the figure, the method comprises: Figure 2

[0068] 201, the terminal device determines whether sidelink transmission is prior to uplink transmission, wherein the sidelink transmission comprises transmission of sidelink information carried by a second uplink physical channel and / or transmission of a sidelink physical channel / signal, and the uplink transmission comprises transmission of uplink information carried by the second uplink physical channel and / or transmission of a first uplink physical channel / signal; and

[0069] 202, in the case where the sidelink transmission is prior to the uplink transmission, power is allocated to the second uplink physical channel and / or the sidelink physical channel / signal in priority.

[0070] In an embodiment of the present application, the transmission of the first uplink physical channel / signal does not carry sidelink information, the second uplink physical channel carries at least sidelink information, and the second uplink physical channel, the first uplink physical channel / signal and the sidelink physical channel / signal overlap in time.

[0071] It is worth noting that the above-mentioned Figure 2 The embodiments of the present application are only schematically described, but the present application is not limited thereto. For example, the execution order between various operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above description, and the description of the above-mentioned Figure 2 is not limited thereto.

[0072] In an embodiment of the present application, the first uplink physical channel / signal can comprise one or more uplink physical channels / signals; the sidelink physical channel / signal (for example, PSSCH, PSCCH, PSFCH, etc.) can comprise one or more sidelink physical channels / signals. The " / " in this article represents "and / or".

[0073] In some embodiments, power is allocated to the second uplink physical channel and / or the sidelink physical channel / signal in accordance with a power allocation priority of the sidelink.

[0074] In some embodiments, in the case where the second uplink physical channel does not carry uplink information and the sidelink transmission is not prior to the uplink transmission, power is allocated to the first uplink physical channel / signal in priority.

[0075] In some embodiments, power is allocated to the first uplink physical channel / signal in accordance with a power allocation priority of the uplink.

[0076] ​In some embodiments, the second uplink physical channel also carries uplink information, and sidelink transmission is not prioritized over uplink transmission, the power is allocated to the second uplink physical channel and / or the first uplink physical channel / signal in priority.

[0077] In some embodiments, the power is allocated to the second uplink physical channel and / or the first uplink physical channel / signal according to the power allocation priority of the uplink.

[0078] Figure 3 is an example diagram of power allocation of an embodiment of the present application. As Figure 3 shown, the terminal device needs to perform uplink transmission and sidelink transmission at the same time. The terminal device transmits Uu information and SL (sidelink) information to the base station through the second uplink physical channel (PUCCH or PUSCH), and the Uu2 information and the SL2 information are multiplexed in the same PUCCH or PUSCH.

[0079] The second uplink physical channel can only carry sidelink information, or can carry both sidelink information and Uu information. Embodiments of the present application take the case where the second uplink physical channel contains one PUCCH or PUSCH as an example, which can be easily extended to the case where the second uplink physical channel contains multiple PUCCHs or PUSCHs.

[0080] As Figure 3 shown, while transmitting the second uplink physical channel, the terminal device needs to perform uplink transmission, i.e., transmit the first uplink physical channel / signal (Uu1), and simultaneously perform sidelink transmission, i.e., transmit the sidelink physical channel / signal (SL3). The first uplink physical channel / signal (Uu1) can be one or more uplink physical channels / signals and does not carry any sidelink information.

[0081] Without loss of generality, Figure 3 one uplink physical channel / signal is taken as an example. The sidelink physical channel / signal (SL3) can be one or more sidelink physical channels / signals and does not carry any Uu information. Without loss of generality, Figure 3 one sidelink physical channel / signal is taken as an example. The present application is not limited thereto.

[0082] The terminal device divides the uplink transmission and the sidelink transmission into two parts according to Uu and SL. Since the second uplink physical channel PUCCH / PUSCH contains both Uu and SL, the Uu information (Uu2) therein belongs to uplink transmission, and the SL information (SL2) belongs to sidelink transmission.

[0083] For example, when sidelink transmission is prioritized over uplink transmission, the second uplink physical channel PUCCH / PUSCH and the sidelink physical channel / signal are allocated to the SL side, which has a higher priority than the Uu side (Uu1, the first uplink physical channel / signal), thus is allocated power preferentially.

[0084] For example, when uplink transmission is prioritized over sidelink transmission (or in other words, sidelink transmission is not prioritized over uplink transmission), the second uplink physical channel PUCCH / PUSCH and the first uplink physical channel / signal are allocated to the Uu side, which has a higher priority than the SL side (SL3, the sidelink physical channel / signal), thus is allocated power preferentially.

[0085] In determining whether sidelink transmission is prioritized over uplink transmission, any method can be used, without limitation, such as using at least one of sidelink logical channel priority, uplink logical channel priority, and priority indicated by sidelink SCI.

[0086] In allocating power to the SL side, any SL power allocation method can be used, without limitation, such as according to the power allocation priority of SL; when the second uplink physical channel exists, the Uu part in the second uplink physical channel is ignored. In allocating power to the Uu side, any Uu power allocation method can be used, without limitation, such as according to the power allocation priority of Uu; when the second uplink physical channel exists, the SL part in the second uplink physical channel is ignored.

[0087] In some embodiments, the second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal can be located in different carriers, or in the same carrier, or part in different carriers and part in the same carrier, without limitation.

[0088] The following exemplary gives several variant examples of the embodiments of the present application.

[0089] Figure 4 is another example of power allocation of the embodiments of the present application. As shown in Figure 4 the second uplink physical channel carries only sidelink information (SL2). When sidelink transmission is prioritized over uplink transmission, the second uplink physical channel and the sidelink physical channel / signal are allocated to the SL side, which has a higher priority than the Uu side (Uu1, the first uplink physical channel / signal), thus is allocated power preferentially.

[0090] When sidelink transmission is not prioritized over uplink transmission, the second uplink physical channel and the sidelink physical channel / signal are divided to the SL side, and the Uu side (Uu1, the first uplink physical channel / signal) has a higher priority than the SL side (SL2 and SL3), so it will be allocated power preferentially.

[0091] Figure 5 is another example diagram of power allocation of an embodiment of the present application, showing the case where there is no first uplink physical channel / signal. Figure 6 is another example diagram of power allocation of an embodiment of the present application, showing the case where there is no sidelink physical channel / signal.

[0092] The above illustrates some embodiments of the present application, which will be further illustrated below.

[0093] In some embodiments, the terminal device sends sidelink information to the network device through a second uplink physical channel on one uplink carrier, where the sidelink information can be HARQ-ACK and / or CSI, and the second uplink physical channel can be PUCCH or PUSCH. The terminal device sends a first uplink physical channel and / or signal to the network device on another one or more uplink carriers, where the first uplink physical channel and / or signal can include PRACH, PUCCH, PUSCH or SRS.

[0094] In some embodiments, the second uplink physical channel is one of the following channels: a physical uplink control channel (SL-PUCCH) carrying sidelink information, a physical uplink shared channel (SL-PUSCH) carrying sidelink information, a physical uplink control channel (SL-UL-PUCCH) carrying sidelink information and uplink information (Uu information), and a physical uplink shared channel (SL-UL-PUSCH) carrying sidelink information and uplink information (Uu information).

[0095] That is, to distinguish between PUCCH / PUSCH carrying sidelink information and PUCCH / PUSCH carrying Uu information, PUCCH / PUSCH carrying sidelink information is subdivided into the following:

[0096] SL-PUCCH: PUCCH carrying only sidelink information.

[0097] SL-PUSCH: PUSCH carrying only sidelink information.

[0098] SL-UL-PUCCH: PUCCH carrying both sidelink information and Uu information. The terminal device multiplexes and transmits the sidelink information and the Uu information in the same PUCCH, wherein the Uu information includes at least one of Uu HARQ-ACK, Uu CSI and Uu SR.

[0099] SL-UL-PUSCH: PUSCH carrying both sidelink information and Uu information. The terminal device multiplexes and transmits the sidelink information and the Uu information in the same PUSCH, wherein the Uu information includes at least one of Uu HARQ-ACK, Uu CSI and Uu data.

[0100] Figure 7 is an example diagram of physical channels and / or signals of embodiments of the present application. As shown in Figure 7 , the PUCCH / PUSCH carrying sidelink information on one carrier can be referred to as a second uplink physical channel, and the second uplink physical channel is one of SL-PUCCH, SL-PUSCH, SL-UL-PUCCH and SL-UL-PUSCH. The physical channel and / or signal on the other one or more carriers is referred to as a first uplink physical channel / signal.

[0101] As shown in Figure 7 , for convenience, the first uplink physical channel / signal is referred to as a first set (carrying Uu information and not carrying sidelink information), and the first set includes at least one of PRACH, PUCCH, PUSCH and SRS. When the second uplink physical channel is SL-UL-PUCCH or SL-UL-PUSCH, the union of the first set and the second uplink physical channel is referred to as a second set (carrying Uu information and also carrying sidelink information).

[0102] Although the uplink physical signal does not strictly carry Uu information, since the uplink physical signal is used for Uu communication and not for sidelink communication, it is also collectively referred to as "carrying Uu information", that is, the meaning of "carrying Uu information" includes that the uplink physical channel carries information for Uu communication and / or the uplink physical signal is used for Uu communication.

[0103] Figure 8 is another schematic diagram of the power allocation method of embodiments of the present application, as shown in Figure 8 , the method includes:

[0104] 801, the terminal device determines whether the sidelink transmission of the second uplink physical channel is prioritized over the uplink transmission within the second set, wherein the second uplink physical channel carries at least sidelink information, and the first uplink physical channel / signal carries uplink information;

[0105] AsFigure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel has priority over the uplink transmission within the second set (i.e., the result of 801 is YES), the method comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel has priority over the uplink transmission within the second set (i.e., the result of 801 is YES), the method comprises:

[0106] 802, the terminal device allocates power to the second uplink physical channel preferentially.

[0107] In the embodiments of the present application, the phrases "allocating power to the second uplink physical channel preferentially", "the second uplink physical channel has a higher power allocation priority" and "adjusting the power of one or more first uplink physical channels and / or signals within the first set so that the total power does not exceed the maximum power limit" have the same meaning. "Allocating power to the second uplink physical channel preferentially" also includes transmitting only the second uplink physical channel, without transmitting (dropping) one or more first uplink physical channels / signals within the first set. Similarly, "allocating power to the first set preferentially" and the like can also be similarly interpreted.

[0108] As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises:

[0109] 803, the terminal device determines whether the second uplink physical channel carries uplink information;

[0110] As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises:

[0111] 804, the terminal device allocates power to the first uplink physical channel / signal preferentially.

[0112] For example, when the second physical channel is a SL-PUCCH or a SL-PUSCH, power is allocated to the first uplink physical channel / signal (the first set) preferentially.

[0113] In some embodiments, power can be allocated to a plurality of uplink physical channels and / or signals according to the power allocation priority of the uplink.

[0114] As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises: Figure 8 As shown in 802, in the case where the sidelink transmission of the second uplink physical channel does not have priority over the uplink transmission within the second set (i.e., the result of 801 is NO), the method further comprises:

[0115] 805, the terminal device allocates power to the second uplink physical channel and the first uplink physical channel / signal (second set) according to the power allocation priority of the uplink.

[0116] For example, when the second uplink physical channel is SL-UL-PUCCH or SL-UL-PUSCH, the power is allocated to the second set according to the order from high to low of the Uu power allocation priority. More specifically, the power allocation order is determined only according to the Uu power allocation priority within the second set.

[0117] It is worth noting that the above-mentioned Figure 8 The embodiments of the present application are only illustrative, but the present application is not limited thereto. For example, the execution order between various operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above description, and the present application is not limited to the above-mentioned Figure 8 description.

[0118] In some embodiments, whether "allocating power for the first set" or "allocating power for the second set" involves allocating power to physical channels and / or physical signals within a set. Since there can be multiple Uu physical channels and / or physical signals within a set, the determination of the power allocation priority within the set can use any related technology of NR Uu.

[0119] For example, the power allocation can be performed according to Section 7.5 of Rel-15 NR standard TS 38.213 V15.7.0. Simply speaking, the power allocation priority of Release-15 NR Uu is arranged in the order from high to low as follows, and the specific details can be referred to the relevant standard document.

[0120] - PRACH transmitted on PCell

[0121] - PUCCH carrying HARQ-ACK and / or SR, or PUSCH carrying HARQ-ACK

[0122] - PUCCH carrying CSI, or PUSCH carrying CSI

[0123] - PUSCH without carrying HARQ-ACK or CSI (i.e. PUSCH only carrying data information)

[0124] - SRS, or PRACH transmitted on non-PCell

[0125] For another example, the power allocation can be performed according to the power allocation priority defined in the future Rel-16 NR standard.

[0126] It is worth noting that the second set contains SL-UL-PUCCH or SL-UL-PUSCH carrying both sidelink information and Uu information, when allocating power for the second set, the SL-UL-PUCCH or SL-UL-PUSCH is regarded as PUCCH or PUSCH carrying only corresponding Uu information, i.e. sidelink information is ignored, so that power allocation can be performed using any related technology of Uu power allocation.

[0127] Figure 9 is an example diagram of performing power allocation according to an embodiment of the present application. As shown in Figure 9 , for carrier #m, when performing priority comparison, sidelink information in PUSCH carrying Uu CSI and sidelink HARQ-ACK is ignored, and is regarded as PUSCH carrying Uu CSI to perform power allocation.

[0128] Figure 10 is an example diagram of power priority according to an embodiment of the present application, showing Figure 9 the priority order of physical channels, and the priorities from high to low correspond to Figure 10 the serial numbers 1, 2 and 3 in

[0129] As shown in 1002 in Figure 10 , when sidelink transmission of the second uplink physical channel is prioritized over uplink transmission within the second set, the priorities from high to low are PUSCH carrying Uu CSI and sidelink HARQ-ACK (priority is 1 at this time), PUCCH carrying Uu HARQ-ACK (priority is 2 at this time) and PUSCH carrying Uu data (priority is 3 at this time) in turn.

[0130] As shown in 1001 in Figure 10 , when sidelink transmission of the second physical channel is not prioritized over uplink transmission within the second set, the priorities from high to low are PUCCH carrying Uu HARQ-ACK (priority is 1 at this time), PUSCH carrying Uu CSI and sidelink HARQ-ACK (priority is 2 at this time) and PUSCH carrying Uu data (priority is 3 at this time) in turn.

[0131] In some embodiments, the parameters for determining whether sidelink transmission of the second uplink physical channel is prioritized over uplink transmission within the second set include at least the priority of sidelink transmission of the second uplink physical channel and / or the priority of uplink transmission within the second set.

[0132] In some embodiments, the terminal device determines that the sidelink transmission is prioritized over the uplink transmission in a case that a highest priority of the sidelink transmission is higher than the first priority; otherwise, determines that the sidelink transmission is not prioritized over the uplink transmission.

[0133] In some embodiments, the terminal device determines that the sidelink transmission is prioritized over the uplink transmission in a case that a highest priority of the sidelink transmission is higher than the first priority, and a highest priority of the uplink transmission is lower than or equal to the second priority; otherwise, determines that the sidelink transmission is not prioritized over the uplink transmission.

[0134] In the embodiments of the present application, “a priority is higher than a threshold” is equivalent to “a priority value is less than a numerical threshold”, in other words, the smaller the priority value, the higher the priority. Similarly, “a priority is lower than or equal to a threshold” is equivalent to “a priority value is greater than or equal to a numerical threshold”.

[0135] In addition, for the conditions of the judgment branch, the “equal to” case can be attributed to the “greater than” side, or to the “less than” side, for example, it can be divided into “greater than or equal to” and “less than” two branches, or it can be divided into “greater than” and “less than or equal to” two branches, and such variants are not listed one by one.

[0136] The above illustrates how to determine whether the second uplink physical channel is prioritized over the first uplink physical channel and / or signal, but the method used in the present application is not limited to this. The following illustrates the case of each priority.

[0137] In some embodiments, the sidelink information includes one or more bits of sidelink hybrid automatic repeat request (HARQ) feedback, and the priority of the sidelink transmission is a highest priority among priorities of the one or more bits.

[0138] In some embodiments, in a case that the bit has an associated physical sidelink shared channel (PSSCH), the priority of the bit is equal to a priority of the PSSCH; in a case that the bit does not have an associated physical sidelink shared channel (PSSCH), the bit has a lowest priority.

[0139] For example, when the sidelink information contains a single sidelink HARQ-ACK bit, the priority of the sidelink information is the priority of the PSSCH to which the sidelink HARQ-ACK is associated. More specifically, the sidelink HARQ-ACK is the ACK / NACK feedback for that PSSCH. The PSSCH is scheduled by a PSCCH (SCI), and the priority of the PSSCH is indicated by the “priority” field in the SCI. In fact, this priority is also equivalent to the highest priority of the logical channels carried by the PSSCH.

[0140] For another example, when the sidelink information contains multiple sidelink HARQ-ACK bits, the priority of the sidelink information is the highest priority among the multiple sidelink HARQ-ACK bits. This can happen, for example, multiple sidelink HARQ-ACK bits for multiple PSSCHs can be multiplexed on the same second uplink physical channel, and thus the sidelink information carried by the second uplink physical channel can contain multiple sidelink HARQ-ACK bits.

[0141] For another example, when a sidelink HARQ-ACK bit contained in the sidelink information has no PSSCH associated with it, this sidelink HARQ-ACK bit is considered to have the lowest priority. This can happen, for example, the second uplink physical channel carries a semi-static HARQ-ACK codebook (also known as type 1 HARQ-ACK codebook), and since the size of the semi-static HARQ-ACK codebook must be fixed, when there is no PSSCH, a NACK placeholder will be filled in the corresponding position in the codebook, and this NACK will be considered to have the lowest priority.

[0142] For another example, for configured grant or grant-free, when there is no traffic to be transmitted, the terminal device will not transmit a PSSCH, and at this time the terminal device can report an ACK to the base station through the second uplink physical channel, indicating that the base station does not need to allocate time-frequency resources for it to transmit or retransmit, and this ACK will be considered to have the lowest priority.

[0143] In some embodiments, the sidelink information includes sidelink channel state information (CSI), and the priority of the sidelink transmission is the priority of the sidelink channel state information.

[0144] For example, when the sidelink information contains sidelink CSI, such as containing at least one of CQI, RI and PMI, the priority of the sidelink information is the priority of the sidelink CSI.

[0145] In some embodiments, the sidelink information includes one or more bits of sidelink channel state information (CSI) and sidelink hybrid automatic repeat request (HARQ) feedback, and the priority of the sidelink transmission is the highest priority among the priorities of the sidelink CSI and the one or more bits.

[0146] For example, when the sidelink information contains both sidelink HARQ-ACK and sidelink CSI, the priority of the sidelink information is the highest priority among the sidelink HARQ-ACK and the sidelink CSI.

[0147] In some embodiments, the priority of the uplink transmission in the second set is the highest priority of all Uu physical channels and / or physical signals contained in the second set. For example, the priority is the highest priority of the logical channels carried by all uplink physical channels and / or signals in the second set.

[0148] In some embodiments, the priority of the sidelink transmission of the second uplink physical channel is the priority of the sidelink, and the priority of the first uplink physical channel / signal is the priority of the Uu.

[0149] In some embodiments, the allocating power includes: allocating power to multiple physical channels or signals in order of priority, or allocating power to one or more physical channels or signals with the highest priority.

[0150] For example, when the second uplink physical channel (SL-PUCCH / SL-PUSCH / SL-UL-PUCCH / SL-UL-PUSCH) and the first uplink physical channel and / or signal (PRACH / PUCCH / PUSCH / SRS) need to be transmitted simultaneously on one uplink carrier, the terminal device can determine the power allocation priority according to the method of the above embodiments, and allocate power in order of priority from high to low.

[0151] For another example, when the terminal device can only transmit one physical channel, the terminal device can transmit the second uplink physical channel and the uplink physical channel / signal with the highest priority in the first set.

[0152] The above embodiments are only illustratively described for the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0153] As can be seen from the above embodiments, the terminal device preferentially allocates power to the second uplink physical channel carrying at least the sidelink information in the case of sidelink transmission being prior to uplink transmission. Thus, when the terminal device feeds back information to the network device, the fairness of power allocation can be ensured, so that power can be preferentially allocated to the physical channel or physical signal with the most urgent demand or the highest importance.

[0154] Embodiments of the second aspect

[0155] The embodiments of the present application are described on the basis of the embodiments of the first aspect. The embodiments of the present application can be executed alone or in combination with the embodiments of the first aspect; the same content as the embodiments of the first aspect will not be described herein.

[0156] Figure 11 is a schematic diagram of a data multiplexing method of the embodiments of the present application, as shown in Figure 11 , the method comprises:

[0157] 1101, when multiplexing the sidelink information and the uplink information into the second uplink physical channel, the terminal device determines whether the code rate exceeds the allowed maximum code rate;

[0158] 1102, in the case that the code rate exceeds the allowed maximum code rate, it is determined whether the sidelink information is prior to the uplink information; and

[0159] 1103, in the case that the sidelink information is prior to the uplink information, at least part of the uplink information is discarded; in the case that the sidelink information is not prior to the uplink information, at least part of the sidelink information is discarded.

[0160] It is worth noting that the above Figure 11 embodiments of the present application are only illustratively described, but the present application is not limited thereto. For example, the execution order between the operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can appropriately modify the above embodiments based on the above description, and the present application is not limited to the above Figure 11 description.

[0161] For Uu link, when the terminal device needs to report multiple types of UCI (HARQ-ACK, SR, CSI) at the same time, and when the UCI code rate exceeds the allowed maximum code rate, the terminal device will discard some UCI according to the priority rule, or select a part of UCI in the order of priority from high to low among all UCI. The method of Uu discarding UCI can be found in section 9.2.5 of Rel-15 NR standard TS 38.213 V15.7.0. In addition, for data multiplexing, code rate, allowed maximum code rate, etc., please refer to the related technology, which will not be repeated here.

[0162] In some embodiments, when PUCCH or PUSCH needs to carry both Uu information and sidelink information, i.e., SL-UL-PUCCH or SL-UL-PUSCH is generated, when the code rate calculated according to all information bits exceeds the allowed maximum code rate, some information needs to be discarded to ensure that the code rate is within the allowed maximum code rate range.

[0163] In some embodiments, when the sidelink information is prioritized over the Uu information, the Uu information is discarded first. The Uu information can be discarded using Uu related technology, for example, using the method in section 9.2.5 of TS 38.213 V15.7.0. All or part of the Uu information can be discarded.

[0164] For example, when the Uu information contains both Uu HARQ-ACK and Uu CSI, the Uu CSI information can be discarded first; when the Uu information contains multiple Uu CSI information, the Uu CSI information with low priority is discarded first.

[0165] In some embodiments, when the sidelink information is not prioritized over the Uu information, the sidelink information is discarded first. All or part of the sidelink information can be discarded.

[0166] For example, when the sidelink information contains both sidelink HARQ-ACK and sidelink CSI, the sidelink CSI information can be discarded first; when the sidelink information contains multiple sidelink CSI information, the sidelink CSI information with low priority is discarded first.

[0167] In some embodiments, the parameters used to determine whether the sidelink information is prioritized over the Uu information include at least one of the priority of the sidelink information and the priority of the Uu information. In the embodiments of the present application, according to different contexts, the priority of the sidelink transmission is also called the priority of the sidelink information, and the priority of the uplink transmission is also called the priority of the Uu information.

[0168] As an implementation form, when the priority of the sidelink information is greater than the first priority threshold, the sidelink information is considered to be prior to the Uu information, otherwise, the sidelink information is considered not to be prior to the Uu information.

[0169] As an implementation form, when the priority of the sidelink information is greater than the first priority threshold, and the priority of the Uu information is less than or equal to the second priority threshold, the sidelink information is considered to be prior to the Uu information, otherwise, the sidelink information is considered not to be prior to the Uu information.

[0170] The above various embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined.

[0171] As known from the above embodiments, the terminal device determines whether the sidelink information is prior to the uplink information when the code rate exceeds the allowed maximum code rate, and discards at least part of the uplink information when the sidelink information is prior to the uplink information, and discards at least part of the sidelink information when the sidelink information is not prior to the uplink information. Thus, when the terminal device feeds back information to the network device, the fairness of data multiplexing can be ensured, so that the data with the most urgent or highest importance demand is multiplexed.

[0172] Embodiments of the third aspect

[0173] The embodiments of the present application are explained on the basis of the embodiments of the first and second aspects. The embodiments of the present application can be executed alone, or can be combined with the embodiments of the first and second aspects; the same content as the embodiments of the first and second aspects will not be described herein.

[0174] In the embodiments of the present application, the terminal device allocates power in the order of priority from high to low according to the priority of the sidelink transmission of the second uplink physical channel and the priority of one or more physical sidelink feedback channels (PSFCH).

[0175] Figure 12 is an example diagram of a transmitted signal of the embodiments of the present application, as shown in Figure 12 the terminal device (for example Figure 11The UE 1) shown may transmit a second uplink physical channel (SL-PUCCH / SL-PUSCH / SL-UL-PUCCH / SL-UL-PUSCH) on an uplink carrier, while simultaneously transmitting PSFCH on a sidelink carrier. This sidelink carrier can be located in the ITS band or can be one of the uplink carriers of Uu, i.e., sharing a carrier with Uu. This application does not impose any restrictions on this.

[0176] like Figure 12 As shown, for example, the base station schedules UE 1 to send a PUCCH carrying a sidelink HARQ-ACK to the base station in time slot n. Simultaneously, UE 1 needs to send a PSFCH to UE 2 in time slot n. For example, if UE 2 is operating in Mode 2, it autonomously decides the transmission time of the PSSCH, which is equivalent to autonomously deciding the transmission time of the PSFCH associated with the PSSCH. The transmission time of the SL-PUCCH is determined by the base station. Since coordination between the base station and UE 2 may be impossible, it is unavoidable that UE 1 may experience [unclear - possibly a problem or issue]. Figure 12 The situation is shown below.

[0177] More broadly, UE 1 may need to transmit the second uplink physical channel and PSFCH simultaneously. When UE 1 needs to transmit the second physical channel and PSFCH simultaneously, power is allocated in descending order of priority based on the priority of the sidelink transmission of the second uplink physical channel and the priority of the PSFCH.

[0178] In some embodiments, power allocation may also include: when the terminal device can only transmit one physical channel, transmitting the highest priority of the second physical channel and the PSFCH. This can be easily extended to the case where the terminal device transmits a second uplink physical channel and multiple PSFCHs, with the terminal device allocating power in descending order of priority. The priority of the sidelink transmission of the second uplink physical channel can be determined according to the method of the first aspect embodiment. The priority of the PSFCH can be defined using related techniques, i.e., the priority of the PSSCH associated with the PSFCH.

[0179] As can be seen from the above embodiments, the terminal device allocates power in descending order of priority according to the priority of the sidelink transmission of the second uplink physical channel and the priority of one or more physical sidelink feedback channels (PSFCH), which can ensure the fairness of power allocation and enable power to be preferentially allocated to the physical channels or physical signals with the most urgent needs or the highest importance.

[0180] Fourth aspect of the embodiment

[0181] The embodiment of the present application provides a power distribution device. The device can be a terminal device (for example, the aforementioned terminal device), or can be one or more components or assemblies configured to the terminal device. The same content as the embodiment of the first to third aspects will not be described herein.

[0182] Figure 13 FIG. 1 is a schematic diagram of a power distribution device according to an embodiment of the present application. As shown in FIG. 1, the power distribution device 1300 includes: Figure 13

[0183] a determination unit 1301 configured to determine whether sidelink transmission is prior to uplink transmission, wherein the sidelink transmission includes transmission of sidelink information carried by a second uplink physical channel and / or transmission of a sidelink physical channel / signal, and the uplink transmission includes transmission of uplink information carried by the second uplink physical channel and / or transmission of a first uplink physical channel / signal; and

[0184] a distribution unit 1302 configured to, in a case where the sidelink transmission is prior to the uplink transmission, preferentially distribute power to the second uplink physical channel and / or the sidelink physical channel / signal.

[0185] In the embodiment of the present application, the transmission of the first uplink physical channel / signal does not carry sidelink information, the second uplink physical channel at least carries sidelink information, and the second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal overlap in time.

[0186] In some embodiments, the distribution unit 1302 is further configured to distribute power to the second uplink physical channel and / or the sidelink physical channel / signal according to a power distribution priority of the sidelink.

[0187] In some embodiments, the distribution unit 1302 is further configured to, in a case where the second uplink physical channel does not carry uplink information and the sidelink transmission is not prior to the uplink transmission, preferentially distribute power to the first uplink physical channel / signal.

[0188] In some embodiments, the distribution unit 1302 is further configured to distribute power to the first uplink physical channel / signal according to a power distribution priority of the uplink.

[0189] In some embodiments, the distribution unit 1302 is further configured to, in a case where the second uplink physical channel also carries uplink information and the sidelink transmission is not prior to the uplink transmission, preferentially distribute power to the second uplink physical channel and / or the first uplink physical channel / signal.

[0190] ​In some embodiments, the allocating unit 1302 is further configured to allocate power to the second uplink physical channel and / or the first uplink physical channel / signal according to a power allocation priority of uplink.

[0191] In some embodiments, the parameter for determining whether the sidelink transmission is prioritized over the uplink transmission comprises at least a priority of the sidelink transmission and / or a priority of the uplink transmission.

[0192] In some embodiments, the determining unit 1301 determines that the sidelink transmission is prioritized over the uplink transmission if a highest priority of the sidelink transmission is higher than a first priority; otherwise, determines that the sidelink transmission is not prioritized over the uplink transmission.

[0193] In some embodiments, the determining unit 1301 determines that the sidelink transmission is prioritized over the uplink transmission if a highest priority of the sidelink transmission is higher than a first priority and a highest priority of the uplink transmission is lower than or equal to a second priority; otherwise, determines that the sidelink transmission is not prioritized over the uplink transmission.

[0194] In some embodiments, the sidelink information carried by the second uplink physical channel comprises one or more bits of sidelink hybrid automatic repeat request feedback, and the priority of the sidelink transmission is a highest priority among priorities of the one or more bits.

[0195] In some embodiments, the priority of the bit is equal to a priority of a physical sidelink shared channel associated with the bit if the bit has the physical sidelink shared channel associated with the bit; and the bit has a lowest priority if the bit does not have the physical sidelink shared channel associated with the bit.

[0196] In some embodiments, the sidelink information carried by the second uplink physical channel comprises sidelink channel state information, and the priority of the sidelink transmission is a priority of the sidelink channel state information.

[0197] In some embodiments, the sidelink information carried by the second uplink physical channel comprises sidelink channel state information and one or more bits of sidelink hybrid automatic repeat request feedback, and the priority of the sidelink transmission is a highest priority among priorities of the sidelink channel state information and the one or more bits.

[0198] In some embodiments, the second uplink physical channel is one of: a physical uplink control channel carrying sidelink information, a physical uplink shared channel carrying sidelink information, a physical uplink control channel carrying sidelink information and uplink information, and a physical uplink shared channel carrying sidelink information and uplink information.

[0199] In some embodiments, the determining unit 1301 is further configured to: determine whether the code rate exceeds the allowed maximum code rate when multiplexing the sidelink information and the uplink information into the second uplink physical channel; determine whether the sidelink information is prioritized over the uplink information in the case that the code rate exceeds the allowed maximum code rate; and discard at least part of the uplink information in the case that the sidelink information is prioritized over the uplink information.

[0200] In some embodiments, the determining unit 1301 is further configured to: discard at least part of the sidelink information in the case that the sidelink information is not prioritized over the uplink information.

[0201] The above embodiments are only exemplarily described, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone or in combination.

[0202] It is worth noting that the above only describes the components or modules related to the present application, but the present application is not limited thereto. The power allocation apparatus 1300 can further include other components or modules, and the specific content of these components or modules can be referred to the related art.

[0203] In addition, for the sake of simplicity, Figure 13 The connection relationship or signal path between the components or modules is only exemplarily shown, but those skilled in the art should understand that various related technologies such as bus connection can be used. The above components or modules can be realized by hardware facilities such as processors, memories, transmitters, receivers, etc., and the present application is not limited thereto.

[0204] As can be seen from the above embodiments, the terminal device preferentially allocates power to at least the second uplink physical channel carrying the sidelink information in the case that the sidelink transmission is prioritized over the uplink transmission. Thus, when the terminal device feeds back information to the network device, the fairness of power allocation can be ensured, so that the power can be preferentially allocated to the physical channel or physical signal with the most urgent demand or the highest importance.

[0205] Embodiments of the fifth aspect

[0206] The embodiments of the present application further provide a communication system, which can be referred to Figure 1 The same content as the embodiments of the first aspect to the fourth aspect will not be described again.

[0207] In some embodiments, the communication system 100 can at least include:

[0208] A terminal device determines whether sidelink transmission is prioritized over uplink transmission, wherein the sidelink transmission comprises transmission of sidelink information carried by a second uplink physical channel and / or transmission of a sidelink physical channel / signal, and the uplink transmission comprises transmission of uplink information carried by the second uplink physical channel and / or transmission of a first uplink physical channel / signal; and allocates power to the second uplink physical channel and / or the sidelink physical channel / signal in case that the sidelink transmission is prioritized over the uplink transmission.

[0209] In the embodiments of the present application, the transmission of the first uplink physical channel / signal does not carry sidelink information, the second uplink physical channel carries at least sidelink information, and the second uplink physical channel, the first uplink physical channel / signal and the sidelink physical channel / signal overlap in time.

[0210] The embodiments of the present application also provide a network device, which can be a base station, but the present application is not limited thereto, and can also be other network devices.

[0211] Figure 14 is a schematic diagram of a network device according to an embodiment of the present application. As shown in Figure 14 , the network device 1400 can include a processor 1410 (such as a central processing unit CPU) and a memory 1420; the memory 1420 is coupled to the processor 1410. The memory 1420 can store various data; in addition, it also stores a program 1430 for information processing, and executes the program 1430 under the control of the processor 1410.

[0212] In addition, as shown in Figure 14 , the network device 1400 can also include a transceiver 1440, an antenna 1450 and the like; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be described here. It is worth noting that the network device 1400 does not necessarily include all the components shown in Figure 14 ; in addition, the network device 1400 can also include components not shown in Figure 14 , which can be referred to the prior art.

[0213] The embodiments of the present application also provide a terminal device, but the present application is not limited thereto, and can also be other devices.

[0214] Figure 15 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 15As shown, the terminal device 1500 may include a processor 1510 and a memory 1520; the memory 1520 stores data and programs and is coupled to the processor 1510. It is worth noting that this figure is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunications functions or other functions.

[0215] For example, processor 1510 may be configured to execute a program to implement the power allocation method as described in the first aspect embodiment. For example, processor 1510 may be configured to control whether sidelink transmission takes precedence over uplink transmission, wherein the sidelink transmission includes the transmission of sidelink information carried by a second uplink physical channel and / or the transmission of a sidelink physical channel / signal, and the uplink transmission includes the transmission of uplink information carried by the second uplink physical channel and / or the transmission of a first uplink physical channel / signal; and if the sidelink transmission takes precedence over the uplink transmission, preferentially allocate power to the second uplink physical channel and / or the sidelink physical channel / signal.

[0216] The first uplink physical channel / signal transmission does not carry sidelink information, while the second uplink physical channel carries at least sidelink information. The second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal overlap in time.

[0217] For example, processor 1510 may be configured to execute a program to implement the data multiplexing method as described in the second aspect of the embodiment. For example, processor 1510 may be configured to perform the following control: when multiplexing sidelink information and uplink information to a second uplink physical channel, determine whether the code rate exceeds a maximum allowed code rate; if the code rate exceeds the maximum allowed code rate, determine whether the sidelink information takes precedence over the uplink information; and if the sidelink information takes precedence over the uplink information, discard at least a portion of the uplink information.

[0218] like Figure 15 As shown, the terminal device 1500 may further include: a communication module 1530, an input unit 1540, a display 1550, and a power supply 1560. The functions of these components are similar to those in the prior art and will not be described in detail here. It is worth noting that the terminal device 1500 is not necessarily required to include these components. Figure 15 All of the components shown are not essential; furthermore, the terminal device 1500 may also include... Figure 15 For components not shown, please refer to existing technologies.

[0219] The embodiments of the present application further provide a computer program, which, when executed in a terminal device, causes the terminal device to perform the power allocation method according to the embodiments of the first and third aspects, or the data multiplexing method according to the embodiments of the second aspect.

[0220] The embodiments of the present application further provide a storage medium storing a computer program, which causes a terminal device to perform the power allocation method according to the embodiments of the first and third aspects, or the data multiplexing method according to the embodiments of the second aspect.

[0221] The apparatuses and methods described above can be implemented by hardware, or by hardware combined with software. The present application relates to a computer readable program, which, when executed by a logic component, causes the logic component to implement the apparatuses or constituent components described above, or causes the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0222] The methods / apparatuses described in connection with the embodiments of the present application can be directly embodied as hardware, software modules executed by a processor, or a combination of the two. For example, one or more of the functional blocks shown in the functional block diagrams, and / or a combination of one or more of the functional blocks, can correspond to individual software modules of a computer program flow, or to individual hardware modules. These software modules can correspond to individual steps shown in the diagrams, respectively. These hardware modules can be implemented by, for example, fixing the software modules with a field programmable gate array (FPGA).

[0223] The software modules can be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to a processor, so that the processor can read information from, and write information to, the storage medium; or the storage medium can be integral to the processor. The processor and the storage medium can be located in an ASIC. The software modules can be stored in the memory of a mobile terminal, or in a memory card that can be inserted into a mobile terminal. For example, if a device (such as a mobile terminal) uses a MEGA-SIM card or a large-capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0224] One or more of the functional blocks described in the figures and / or one or more combinations of the functional blocks can be implemented as a general- purpose processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any appropriate combination of the foregoing, designed to perform the functions described herein for the functional blocks. One or more of the functional blocks described in the figures and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0225] The application has been described in relation to particular embodiments, but those skilled in the art will remain aware that the descriptions are illustrative only and are not intended to limit the scope of the application. Various modifications and changes can be made by those skilled in the art to the present application, which modifications and changes are intended to fall within the scope of the application as defined by the appended claims.

[0226] In connection with the embodiments including the above, the following notes are also disclosed:

[0227] Note 1. A power allocation method, comprising:

[0228] The terminal device determines whether a sidelink transmission is prioritized over an uplink transmission, wherein the sidelink transmission comprises a transmission of sidelink information carried by a second uplink physical channel and / or a transmission of a sidelink physical channel / signal, and the uplink transmission comprises a transmission of uplink information carried by the second uplink physical channel and / or a transmission of a first uplink physical channel / signal; and

[0229] In the case that the sidelink transmission is prioritized over the uplink transmission, power is allocated to the second uplink physical channel and / or the sidelink physical channel / signal with priority.

[0230] Note 2. The method according to Note 1, wherein the transmission of the first uplink physical channel / signal does not carry sidelink information, the second uplink physical channel carries at least sidelink information, and the second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal overlap in time.

[0231] Note 3. The method according to Note 1 or 2, wherein the method further comprises:

[0232] Power is allocated to the second uplink physical channel and / or the sidelink physical channel / signal according to a power allocation priority of the sidelink.

[0233] Appendix 4. The method according to Appendix 1 or 2, wherein the method further comprises:

[0234] When the second uplink physical channel does not carry uplink information and the sidelink transmission does not take priority over the uplink transmission, power is preferentially allocated to the first uplink physical channel / signal.

[0235] Note 5: According to the method described in Note 4, the power is allocated to the first uplink physical channel / signal according to the uplink power allocation priority.

[0236] Appendix 6. The method according to Appendix 1 or 2, wherein the method further comprises:

[0237] When the second uplink physical channel also carries uplink information and the sidelink transmission does not take precedence over the uplink transmission, power is preferentially allocated to the second uplink physical channel and / or the first uplink physical channel / signal.

[0238] Appendix 7. The method according to Appendix 6, wherein the method further includes:

[0239] Power is allocated to the second uplink physical channel and / or the first uplink physical channel / signal according to the uplink power allocation priority.

[0240] Appendix 8. The method according to any one of Appendices 1 to 7, wherein the parameters for determining whether the side link transmission takes precedence over the uplink transmission include at least the priority of the side link transmission and / or the priority of the uplink transmission.

[0241] Appendix 9. The method according to any one of Appendices 1 to 8, wherein, if the highest priority of the side link transmission is higher than the first priority, the side link transmission is determined to have priority over the uplink transmission; otherwise, the side link transmission is determined not to have priority over the uplink transmission.

[0242] Appendix 10. The method according to any one of Appendices 1 to 8, wherein, if the highest priority of the side link transmission is higher than the first priority and the highest priority of the uplink transmission is lower than or equal to the second priority, the side link transmission is determined to have priority over the uplink transmission; otherwise, the side link transmission is determined not to have priority over the uplink transmission.

[0243] Note 11. The method according to any one of Notes 8 to 10, wherein the sidelink information carried by the second uplink physical channel includes one or more bits of sidelink Hybrid Automatic Repeat Request (HARQ) feedback, and the priority of the sidelink transmission of the second uplink physical channel is the highest priority among the priorities of the one or more bits.

[0244] Clause 12. The method of clause 11, wherein, in a case that the bit has an associated physical sidelink shared channel (PSSCH), the priority of the bit is equal to a priority of the PSSCH.

[0245] In a case that the bit does not have an associated physical sidelink shared channel (PSSCH), the bit has a lowest priority.

[0246] Clause 13. The method of any one of clauses 8-10, wherein the sidelink information carried by the second uplink physical channel comprises sidelink channel state information (CSI), and a priority of the sidelink transmission of the second uplink physical channel is a priority of the sidelink channel state information.

[0247] Clause 14. The method of any one of clauses 8-10, wherein the sidelink information carried by the second uplink physical channel comprises one or more bits of sidelink channel state information (CSI) and sidelink hybrid automatic repeat request (HARQ) feedback, and a priority of the sidelink transmission of the second uplink physical channel is a highest priority among priorities of the sidelink channel state information and the one or more bits.

[0248] Clause 15. The method of any one of clauses 1-14, wherein the second uplink physical channel is one of:

[0249] a physical uplink control channel (SL-PUCCH) carrying sidelink information, a physical uplink shared channel (SL-PUSCH) carrying sidelink information, a physical uplink control channel (SL-UL-PUCCH) carrying sidelink information and uplink information (Uu information), a physical uplink shared channel (SL-UL-PUSCH) carrying sidelink information and uplink information (Uu information).

[0250] Clause 16. The method of any one of clauses 1-15, wherein the method further comprises:

[0251] determining, by the terminal device, whether a code rate exceeds a maximum allowed code rate when multiplexing the sidelink information and the uplink information into the second uplink physical channel;

[0252] in a case that the code rate exceeds the maximum allowed code rate, determining whether the sidelink information is prioritized over the uplink information; and

[0253] in a case that the sidelink information is prioritized over the uplink information, discarding at least a portion of the uplink information.

[0254] Clause 17. The method of clause 16, wherein the method further comprises:

[0255] in case that the sidelink information is not prioritized over the uplink information, discarding at least part of the sidelink information.

[0256] Note 18. The method of any of Notes 1 to 17, wherein the allocating power comprises allocating power to a plurality of physical channels or signals in order of priority, or allocating power to one or more physical channels or signals of highest priority.

[0257] Note 19. A data multiplexing method, comprising:

[0258] determining, by the terminal device, whether a code rate exceeds a maximum allowed code rate when multiplexing sidelink information and uplink information into a second uplink physical channel;

[0259] in case that the sidelink information is not prioritized over the uplink information, discarding at least part of the sidelink information.

[0260] in case that the sidelink information is not prioritized over the uplink information, discarding at least part of the sidelink information.

[0261] Note 20. The method of Note 19, wherein the method further comprises:

[0262] in case that the sidelink information is not prioritized over the uplink information, discarding at least part of the sidelink information.

[0263] Note 21. A terminal device comprising a memory storing a computer program and a processor configured to execute the computer program to implement the power allocation method of any of Notes 1 to 18, or the data multiplexing method of Note 19 or 20.

Claims

1. A power allocation apparatus configured in a terminal device, comprising a memory and a processor, the memory storing instructions, the processor configured to execute the instructions to perform the following operations: generating an ACK in a case that a physical sidelink shared channel is not transmitted on resources provided by a configured grant; and transmitting the ACK to a base station using a physical uplink control channel, wherein a power allocation priority of the ACK is a lowest priority, and a power allocation priority value of the ACK is the same as a maximum priority value among power allocation priority values of the configured grant. A larger priority value corresponds to a lower priority. The processor is further configured to: determine whether a sidelink transmission is prioritized over an uplink transmission, wherein the sidelink transmission comprises a transmission of sidelink information carried by a second uplink physical channel and / or a transmission of a sidelink physical channel / signal, and the uplink transmission comprises a transmission of uplink information carried by the second uplink physical channel and / or a transmission of a first uplink physical channel / signal carrying no sidelink information, wherein the second uplink physical channel carries at least sidelink information, and the second uplink physical channel, the first uplink physical channel / signal, and the sidelink physical channel / signal overlap in time; and in a case that the sidelink transmission is prioritized over the uplink transmission, allocate power to the second uplink physical channel and / or the sidelink physical channel / signal preferentially. wherein The processor is further configured to allocate power to the second uplink physical channel and / or the sidelink physical channel / signal according to a power allocation priority of the sidelink.

2. The apparatus of claim 1, wherein, The processor is further configured to allocate power to the first uplink physical channel / signal preferentially in a case that the second uplink physical channel carries no uplink information and the sidelink transmission is not prioritized over the uplink transmission.

3. The apparatus of claim 1, wherein, The processor is further configured to allocate power to the first uplink physical channel / signal according to a power allocation priority of the uplink. The processor is further configured to allocate power to the second uplink physical channel and / or the first uplink physical channel / signal preferentially in a case that the second uplink physical channel carries uplink information and the sidelink transmission is not prioritized over the uplink transmission. The processor is further configured to allocate power to the second uplink physical channel and / or the first uplink physical channel / signal according to a power allocation priority of the uplink.

4. The apparatus of claim 3, wherein, A parameter used to determine whether the sidelink transmission is prioritized over the uplink transmission comprises at least a priority of the sidelink transmission and / or a priority of the uplink transmission.

5. The apparatus of claim 3, wherein, The processor is further configured to determine that the sidelink transmission is prioritized over the uplink transmission in a case that a highest priority of the sidelink transmission is higher than a first priority; otherwise, determine that the sidelink transmission is not prioritized over the uplink transmission.

6. The apparatus of claim 5, wherein, ​ 7. The apparatus of claim 3, wherein, ​ 8. The apparatus of claim 7, wherein, ​ 9. The apparatus of claim 3, wherein, ​ 10. The apparatus of claim 9, wherein, ​ 11. The apparatus of claim 9, wherein, The processor is further configured to: determine that the sidelink transmission is prioritized over the uplink transmission in a case that a highest priority of the sidelink transmission is higher than the first priority and a highest priority of the uplink transmission is lower than or equal to the second priority; and otherwise, determine that the sidelink transmission is not prioritized over the uplink transmission.

12. The apparatus of claim 9, wherein, The sidelink information carried by the second uplink physical channel comprises one or more bits of sidelink hybrid automatic repeat request feedback, and a priority of the sidelink transmission of the second uplink physical channel is a highest priority among priorities of the one or more bits.

13. The apparatus of claim 12, wherein, In a case that the bit has an associated physical sidelink shared channel, the priority of the bit is equal to a priority of the physical sidelink shared channel. In a case that the bit does not have an associated physical sidelink shared channel, the bit has a lowest priority.

14. The apparatus of claim 9, wherein, The sidelink information carried by the second uplink physical channel comprises sidelink channel state information, and a priority of the sidelink transmission of the second uplink physical channel is a priority of the sidelink channel state information.

15. The apparatus of claim 9, wherein, The sidelink information carried by the second uplink physical channel comprises sidelink channel state information and one or more bits of sidelink hybrid automatic repeat request feedback, and a priority of the sidelink transmission of the second uplink physical channel is a highest priority among priorities of the sidelink channel state information and the one or more bits.

16. The apparatus of claim 3, wherein, The second uplink physical channel is one of: a physical uplink control channel carrying sidelink information, a physical uplink shared channel carrying sidelink information, a physical uplink control channel carrying sidelink information and uplink information, and a physical uplink shared channel carrying sidelink information and uplink information.

17. The apparatus of claim 3, wherein, The processor is further configured to: determine whether a code rate exceeds a maximum allowed code rate when multiplexing the sidelink information and the uplink information into the second uplink physical channel; determine whether the sidelink information is prioritized over the uplink information in a case that the code rate exceeds the maximum allowed code rate; and discard at least part of the uplink information in a case that the sidelink information is prioritized over the uplink information.

18. The apparatus of claim 17, wherein, The processor is further configured to: discard at least part of the sidelink information in a case that the sidelink information is not prioritized over the uplink information.

19. A power allocation method, comprising: generating, by a terminal device, an ACK in a case that a physical sidelink shared channel is not transmitted on a resource provided by a configured grant; and transmitting, by the terminal device, the ACK to a base station using a physical uplink control channel, wherein a power allocation priority of the ACK is a lowest priority, wherein a power allocation priority value of the ACK is the same as a maximum priority value among power allocation priority values of the configured grant.

20. A communication system, comprising: a terminal device configured to generate an ACK in a case that a physical sidelink shared channel is not transmitted on a resource provided by a configured grant; and transmit the ACK to a base station using a physical uplink control channel, wherein a power allocation priority of the ACK is a lowest priority, wherein a power allocation priority value of the ACK is the same as a maximum priority value among power allocation priority values of the configured grant. The power allocation priority value of the ACK is same as the maximum priority value in the power allocation priority value of the configuration grant. The power allocation priority value of the ACK is same as the maximum priority value in the power allocation priority value of the configuration grant.

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